]> git.mjollnir.org Git - moodle.git/commitdiff
reverting last commit, expect new fixes soon
authorskodak <skodak>
Thu, 28 Sep 2006 15:34:54 +0000 (15:34 +0000)
committerskodak <skodak>
Thu, 28 Sep 2006 15:34:54 +0000 (15:34 +0000)
mod/assignment/type/upload/assignment.class.php
mod/assignment/type/upload/deleteonesubmission.php
mod/assignment/type/upload/mod.html

index 09625773a97f51056044ee2c56762951cee2e5e7..70833c0c676a8b7edb010e3096a728a5281eff2e 100644 (file)
  * Extend the base assignment class for assignments where you upload one or more files and where teacher can upload one or more response files
  *
  */
-
- /*
-  *defining constants for status indicators
-  */
-
- //submissionstatusblank
- define('BLANK', 'Blank');
-
- //submissionstatussubmitted
- define('SUBMITTED', 'Submitted');
-
- //submissionstatusgraded
- define('GRADED', 'Graded');
-
- //submissionstatusreturned
- define('RETURNED', 'Returned');
- /***********************************************************************
-* CUSTOM SQL
-************************************************************************/
-    function display_submissions_sql($table, $users, $assignmentID) {
-        global $CFG, $USER;
-
-        if ($where = $table->get_sql_where()) {
-            $where .= ' AND ';
-        }
-
-        if ($sort = $table->get_sql_sort()) {
-            $sort = ' ORDER BY '.$sort;
-        }
-
-        /*
-         *select has been modified. because we also need to get student
-         *id & assignment status == upload_status = {Draft,
-         *Submitted, Marked, Returned}
-        */
-        $select = 'SELECT u.id, u.id, u.firstname, u.lastname, u.picture, u.idnumber, s.id AS submissionid, s.grade, s.comment, s.timemodified, s.timemarked, ((s.timemarked > 0) AND (s.timemarked >= s.timemodified)) AS status, s.data1 as upload_status ';
-
-        $sql = 'FROM '.$CFG->prefix.'user u '.
-               'LEFT JOIN '.$CFG->prefix.'assignment_submissions s ON u.id = s.userid AND s.assignment = '.$assignmentID.' '.
-               'WHERE '.$where.'u.id IN ('.implode(',', array_keys($users)).') ';
-
-
-
-        if($table->get_page_start() !== '' && $table->get_page_size() !== '') {
-            $limit = ' '.sql_paging_limit($table->get_page_start(), $table->get_page_size());
-        }
-        else {
-            $limit = '';
-        }
-        $temp = $select.$sql.$sort.$limit;
-
-        return $temp;
-    } // end function display_submissions_sql()
-
-    function next_student_sql($assignmentID, $users) {
-        global $CFG, $offset;
-        $select = 'SELECT u.id, u.id, u.firstname, u.lastname, u.picture,'.
-                  's.id AS submissionid, s.grade, s.comment, s.timemodified, s.timemarked, ((s.timemarked > 0) AND (s.timemarked >= s.timemodified)) AS status ';
-        $sql = 'FROM '.$CFG->prefix.'user u '.
-               'LEFT JOIN '.$CFG->prefix.'assignment_submissions s ON u.id = s.userid AND s.assignment = '.$assignmentID.' '.
-               'WHERE u.id IN ('.implode(',', array_keys($users)).') AND s.data1 <> "Draft"  AND s.data1 <> ""';
-        //we don't need to grade drafts or empty assignments
-
-        require_once($CFG->libdir.'/tablelib.php');
-        if($sort = flexible_table::get_sql_sort('mod-assignment-submissions')) {
-            $sort = 'ORDER BY '.$sort.' ';
-        }
-
-        $limit = sql_paging_limit($offset+1, 1);
-
-        $temp = $select.$sql.$sort.$limit;
-        return $temp;
-
-        }
-
-/***********************************************************************
-* END CUSTOM SQL
-************************************************************************/
 class assignment_upload extends assignment_base {
-
+    
     function print_student_answer($userid, $return=false){
         global $CFG, $USER;
-
+       
         $filearea = $this->file_area_name($userid);
-        $output = '';
 
+        $output = '';
+    
         if ($basedir = $this->file_area($userid)) {
             if ($files = get_directory_list($basedir)) {
                 require_once($CFG->libdir.'/filelib.php');
                 foreach ($files as $key => $file) {
-
+                    
                     $icon = mimeinfo('icon', $file);
-
+                    
                     if ($CFG->slasharguments) {
-                        $ffurl = "{$CFG->wwwroot}/file.php/$filearea/$file";
-                    } 
-                    else {
-                        $ffurl = "{$CFG->wwwroot}/file.php/$filearea/$file";
+                        $ffurl = "$CFG->wwwroot/file.php/$filearea/$file";
+                    } else {
+                        $ffurl = "$CFG->wwwroot/file.php?file=/$filearea/$file";
                     }
+                    //died right here
+                    //require_once($ffurl);                
                     $output .= '<img align="middle" src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />'.
                             '<a href="'.$ffurl.'" >'.$file.'</a><br />';
                 }
@@ -110,392 +34,357 @@ class assignment_upload extends assignment_base {
         }
 
         $output = '<div class="files">'.$output.'</div>';
-        return $output;
+        return $output;    
     }
 
     function assignment_upload($cmid=0) {
         parent::assignment_base($cmid);
+
     }
 
     //generates page for file upload, list of uploaded files, feedbacks from teachers, etc
     function view() {
-        global $USER;
 
-        require_login($this->course->id, false, $cm);
-
-        // Guests are not allowed to view student's or teacher's assignment information.
-        if (isguest($USER->id)) {
-            error(get_string('usererror', 'assignment'));
-        } 
-        else if (isteacher($this->course->id, $USER->id, true) or isstudent($this->course->id, $USER->id)) {
+        global $USER;
 
-            $this->view_header();
-            $this->view_intro();
-            $this->view_dates();
+        $this->view_header();
 
-            $filecount = $this->count_user_files($USER->id);
+        $this->view_intro();
 
-            //prints students draft and final uploads
-            if ($submission = $this->get_submission()) {
-                if ($submission->timemarked == true) {
-                    print_simple_box($this->print_user_files($USER->id, true), 'center');
-                    $this->view_feedback();
-                }
-                else if ($filecount >= 0) {
-                    print_simple_box($this->print_user_files($USER->id, true), 'center');
-                }
+        $this->view_dates(); 
 
-                // data2 = holds teacher's id for teacher responses
-                if ($submission->data2 != NULL) {
-                    print_heading(get_string('responsesfromteacher', 'assignment'));
-                    $this->print_response_students(true);
-                }
-            }
+        $filecount = $this->count_user_files($USER->id);
 
-            //display Blank if there were no files uploaded yet, otherwise display submission status
-            //if there are no more files uploaded, $submission_status should be blank.
-            if ($submission->numfiles == 0) {
-                $submission_status = get_string('submissionstatusblank','assignment');
+        if ($submission = $this->get_submission()) { 
+            if ($submission->timemarked) {
+                $this->view_feedback();
+            }else if ($filecount) { 
+                print_simple_box($this->print_user_files($USER->id, true), 'center');
             }
-            else {
-                // data1 = submission status of the submitted assignment.
-                if($submission->data1 == GRADED) {
-                    $submission_status = get_string('submissionstatusgraded','assignment');
-                }else {
-                    $submission_status = $submission->data1;
-                }
+            //from upload&review. check if there are responses from teacher  
+        if ($submission->data2 != NULL) {
+                print_heading(get_string('responsesfromteacher', 'assignment'));
+                $this->print_response_students(true);
             }
+        }
 
-
-            //display submission status
-            notify("<b>".get_string('submissionstatus', 'assignment').":" . " </b> ". $submission_status);
-
-            //checks to see if files are of submitted status or not
-            //checks if the file is part of multiple file uploading
-            //and that it is of returned status
-            //checks if the file is of graded status
-            //checks again to see if file is of returned status
-            //checks if the teacher has graded the assignment.
-            //will allow users to see the file uploading page.
-            /*
-             *var1 indicates that multiple file upload is active(1 active, 0 off).
-            */
-
-            if ($submission->data1 != SUBMITTED && $this->isopen() &&
-            ((!$this->assignment->var1 && $submission->data1 == RETURNED) ||
-                 !$filecount ||
-                 ($this->assignment->resubmit && $submission->data1 == GRADED) ||
-                 $submission->data1 == RETURNED ||
-                 !$submission->timemarked)
-            ) {
-                  $this->view_upload_form();
-              }
-              $this->view_footer();
-
+        //display Blank if there were no files uploaded yet, otherwithe display submission status
+        if (!$submission->data1) {
+            $submission_status = get_string('submissionstatusblank','assignment');
+        }
+        else {
+            $submission_status = $submission->data1;
         }
 
+        //display submisison status
+        notify("<b>".get_string('submissionstatus', 'assignment')." </b> ".$submission_status);
+
+        if ($submission->data1 != get_string("submissionstatussubmitted", "assignment") && has_capability('mod/assignment:submit', get_context_instance(CONTEXT_MODULE, $this->cm->id)) && $this->isopen() && 
+            ((!$this->assignment->var1 && $submission->data1 == get_string("submissionstatusreturned", "assignment")) || 
+             // $this->assignment->var1 || 
+             !$filecount || 
+             ($this->assignment->resubmit &&  $submission->data1 == get_string("submissionstatusmarked", "assignment")) ||
+             $submission->data1 == get_string("submissionstatusreturned", "assignment") || 
+             !$submission->timemarked)
+        ) {
+            $this->view_upload_form();
+        }
+        $this->view_footer();
     }
 
     function view_upload_form() {
         global $CFG;
-        require_once($CFG->libdir.'/uploadlib.php');
-
-
         $struploadafile = get_string("uploadafile");
 
         $strmaxsize = get_string("maxsize", "", display_size($this->assignment->maxbytes));
 
-        // for student uploads
         echo '<center>';
-        echo '<form enctype="multipart/form-data" method="post" ';
-        echo 'action="'.$CFG->wwwroot.'/mod/assignment/upload.php">';
-        echo '<p><b>'.get_string('step1','assignment').'</b>'.get_string('attachfiletoassignment','assignment')." ($strmaxsize)</p>";
+        echo '<form enctype="multipart/form-data" method="post" '.
+             "action=\"$CFG->wwwroot/mod/assignment/upload.php\">";
+        echo "<p><b>".get_string('step1','assignment')."</b>".get_string('attachfiletoassignment','assignment')." ($strmaxsize)</p>";//$struploadafile
         echo '<input type="hidden" name="id" value="'.$this->cm->id.'" />';
-        echo '<input type="hidden" name="sesskey" value="'.sesskey().'">';
+        require_once($CFG->libdir.'/uploadlib.php');
         upload_print_form_fragment(1,array('newfile'),false,null,0,$this->assignment->maxbytes,false);
-        
         //upload files
         echo '<input type="submit" name="save" value="'.get_string('attachfile','assignment').'" />';
         echo "<p><b>".get_string('step2','assignment')."</b>".get_string('submitformarking','assignment')."</p>";
-        
         //final submit
         echo '<input type="submit" name="save" value="'.get_string('sendformarking','assignment').'" />';
         echo "<p>".get_string('onceassignmentsent','assignment')."</p>";
+
         echo '</form>';
+
         echo '</center>';
     }
 
     //from upload&review. generates upload form for markers response
     function view_upload_response_form($userid,$offset) {
         global $CFG;
-        require_once($CFG->libdir.'/uploadlib.php');
-        
-        $userid = required_param('userid', PARAM_INT);
 
-        //for teacher's responses
+        $userid = required_param('userid');
+
         echo '<center>';
         echo get_string('choosereviewfile','assignment').'<br>';
 
-        echo '<form enctype="multipart/form-data" method="post" ';
-        echo 'action="'.$CFG->wwwroot.'/mod/assignment/upload.php">';
+        echo '<form enctype="multipart/form-data" method="post" '.
+             "action=\"$CFG->wwwroot/mod/assignment/upload.php\">";
         echo '<input type="hidden" name="userid" value="'.$userid.'" />';
         echo '<input type="hidden" name="offset" value="'.$offset.'" />';
         echo '<input type="hidden" name="id" value="'.$this->cm->id.'" />';
-        echo '<input type="hidden" name="sesskey" value="'.sesskey().'">';
-        upload_print_form_fragment(1, array('newfile'), false, null, 0, $this->assignment->maxbytes, false);
+        require_once($CFG->libdir.'/uploadlib.php');
+        upload_print_form_fragment(1,array('newfile'),false,null,0,$this->assignment->maxbytes,false);       
         echo '<input type="submit" name="save" value="'.get_string('uploadthisfile').'" />';
         echo '</form>';
         echo '</center>';
     }
 
-    //general function which calls function for drafts upload, final upload, teachers response upload
+    //general function which calls function for drafts upload, final upload, teachers responce upload
     function upload(){
-         global $offset, $USER;
+        global $offset;
+
         //if this is final submit
-        if(optional_param('save', PARAM_ALPHANUM) === get_string('sendformarking','assignment')) {
-            $this->final_upload(sesskey());
-        }
-        else {
-            //if this is draft upload
-            if (optional_param('save', PARAM_ALPHANUM)==get_string('attachfile','assignment') && !$userid) {
-                $this->submission_upload(sesskey());
-            }
-            else {              //if this is upload of teacher's response
-                $id      = optional_param('id', '', PARAM_INT);  //Course module ID
-                $a       = optional_param('a', '', PARAM_INT);   //Assignment ID
-                $userid  = required_param('userid', PARAM_INT);  //Stores student id for uploading a review file to
-
-                $this->response_upload($userid, sesskey());   // Upload files   // Upload files
-                echo '<form action="submissions.php">';
-                echo '<input type="hidden" value="'.$userid.'" name="userid" />';
-                echo '<input type="hidden" value="'.$id.'" name="id" />';
-                echo '<input type="hidden" value="'.$a.'" name="a" />';
-                echo '<input type="hidden" value="single" name="mode" />';
-                echo '<input type="hidden" name="offset" value="'.$offset.'" />';
-                echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
-                echo '<center><input type="submit" value="'.get_string('feedback', 'assignment').'" name="submit"></center></form>';
-            }
-        }
+        $savestr = optional_param('save', '', PARAM_ALPHA);
+        if ($savestr === get_string('sendformarking','assignment')) {              
+
+           $this->final_upload();
+
+        } else {
+           //if this is draft upload
+           if ($_POST['save']==get_string('attachfile','assignment') && !isset($_POST['userid'])){         
+
+               $this->submission_upload();
+
+           } else {                                         
+               //if this is upload of teacher's response
+               $id      = optional_param('id', 0, PARAM_INT);         // Course module ID
+               $a       = optional_param('a', 0, PARAM_INT);          // Assignment ID
+               $userid  = required_param('userid', 0, PARAM_INT);     // Stores student id for uploading a review file to
+               $this->response_upload($userid);   // Upload files
+               echo "<form action=\"submissions.php\">";
+               echo "<input type=\"hidden\" value=\"$userid\" name=\"userid\">";
+               echo "<input type=\"hidden\" value=\"$id\" name=\"id\"><input type=\"hidden\" value=\"$a\" name=\"a\"><input type=\"hidden\" value=\"single\" name=\"mode\">";
+               echo '<input type="hidden" name="offset" value="'.$offset.'" />';
+               echo "<center><input type=\"submit\" value=\"Back to Feedback\" name=\"submit\"></center></form>";
+           }
+        }    
     }
 
     //implements upload regular submissuion - draft files
-    function submission_upload($sesskey) {
+    function submission_upload() {
         global $CFG, $USER, $counter;
 
-        require_once($CFG->dirroot.'/lib/uploadlib.php');
+        require_capability('mod/assignment:submit', get_context_instance(CONTEXT_MODULE, $this->cm->id));
 
-        if (!confirm_sesskey()) {
-            error('Bad Session Key');
-        }
+        $this->view_header(get_string('upload'));
 
-        //checking for teachers/students/guests of the course
-        if (isguest($USER->id)) {
-            error(get_string('guestnoupload','assignment'));
-        } 
-        else if (isteacher($this->course->id, $USER->id, true) or isstudent($this->course->id, $USER->id)){
+        $filecount = $this->count_user_files($USER->id);
+        $submission = $this->get_submission($USER->id);
 
-            $course = $this->course;
-            $this->view_header(get_string('upload'));
+        //need to get student's directory and all previously uploaded files
+        $basedir = $this->file_area($USER->id);
+        $files = get_directory_list($basedir);
 
-            $filecount = $this->count_user_files($USER->id);
-            $submission = $this->get_submission($USER->id);
-
-            //need to get student's directory and all previously uploaded files
-            $basedir = $this->file_area($USER->id);
-            $files = get_directory_list($basedir);
-
-            if ($this->isopen() ){
-                if ($submission) {
-                    //TODO: change later to ">= 0", to prevent resubmission when graded 0
-                    if (($submission->grade >= 0) and $this->assignment->resubmit) {
-                        error(get_string('submissionerror','assignment'));
-                    } else if ($submission->grade >= 0 and $this->numfiles == 0){
-                        error(get_string('nofilesforsubmit', 'assignment'));
-                    }
+        if ($this->isopen()) {//&& ($this->assignment->var1 || !$filecount || $this->assignment->resubmit || !$submission->timemarked)) {
+            if ($submission) {
+                //TODO: change later to ">= 0", to prevent resubmission when graded 0
+                if (($submission->grade > 0) and !$this->assignment->resubmit) {
+                    notify(get_string('alreadygraded', 'assignment'));
                 }
+            }
 
-                $dir = $this->file_area_name($USER->id);
-                $um = new upload_manager('newfile',!$this->assignment->var1,false,$course,false,$this->assignment->maxbytes);
-
-                if ($um->process_file_uploads($dir)) {
-                    $newfile_name = $um->get_new_filename();
-                    //if student already submitted something before
-                    if ($submission) {
-                        //assignment is not submited for marking
-                        $newsubmission->timemodified = '0';
-                        //$submission->timemodified = time();
-                        $flag=false;
-                        foreach ($files as $key => $file) {
-                            if ($file == $newfile_name) {
-                                $flag = true;
-                            }
-                        }
-                        
-                        //if this is an assignment for single upload
-                        if (!$this->assignment->var1) {
-                            //if numfiles=1
-                            if ($submission->numfiles==0 && !$flag) {
-                                $submission->numfiles ++;
-                            }
+            $dir = $this->file_area_name($USER->id);
+
+            require_once($CFG->dirroot.'/lib/uploadlib.php');
+            $um = new upload_manager('newfile',!$this->assignment->var1,false,$course,false,$this->assignment->maxbytes);
+            if ($um->process_file_uploads($dir)) { 
+                $newfile_name = $um->get_new_filename();
+                //if student already submitted smth before
+                if ($submission) {  
+                    // assignment is not submited for marking
+                    $newsubmission->timemodified = '0';
+                    //$submission->timemodified = time();
+                    $flag=false;
+                    foreach ($files as $key => $file) {
+                        if ($file == $newfile_name) {
+                            $flag = true;
                         }
-                        else { 
-                            //if file with the same name has not been uploaded before
-                            if (!$flag)  $submission->numfiles ++;
+                    } 
+                    //if this is an assignment for single upload
+                    if (!$this->assignment->var1) {
+                      //if numfiles=1 
+                        if ($submission->numfiles==0 && !$flag) {
+                            $submission->numfiles ++;
                         }
-                        
-                        $submission->comment = addslashes($submission->comment);
-                        $submission->data1 = addslashes($submission->data1);
-                        unset($submission->data2);  //Don't need to update.
-                        
-                        if (update_record("assignment_submissions", $submission)) {
-                            add_to_log($this->course->id, 'assignment', 'upload', 'view.php?a='.$this->assignment->id, $this->assignment->id, $this->cm->id);
-                            print_heading(get_string('uploadedfile'));
-                        } 
-                        else {
-                            error(get_string("uploadfailnoupdate", "assignment"));
+                    } else {
+                      //if file with the same name has not been uploaded before  
+                        if (!$flag) {
+                            $submission->numfiles ++;
                         }
+                    }
                     
-                    //if it's first student's submission
-                    } 
-                    else {
-                        $newsubmission = $this->prepare_new_submission($USER->id);
-                        //submissions has been created, but not submitted for marking
-                        $newsubmission->timecreated  = time();
-                        $newsubmission->timemodified = '0';
-                        $newsubmission->data1 = get_string("submissionstatusdraft", "assignment");
-                        $newsubmission->numfiles = 1;
-                        if (insert_record('assignment_submissions', $newsubmission)) {
-                            add_to_log($this->course->id, 'assignment', 'upload', 'view.php?a='.$this->assignment->id, $this->assignment->id, $this->cm->id);
-                            print_heading(get_string('uploadedfile'));
-                        } 
-                        else {
-                            error(get_string("uploadnotregistered", "assignment", $newfile_name) );
-                        }
+                    $submission->submissioncomment = addslashes($submission->submissioncomment);
+                    unset($submission->data1);  // Don't need to update this.
+                    //unset($submission->data2);  // Don't need to update this.
+                    if (update_record("assignment_submissions", $submission)) { 
+                        add_to_log($this->course->id, 'assignment', 'upload',
+                                'view.php?a='.$this->assignment->id, $this->assignment->id, $this->cm->id);
+                        //we email teachers on final upload
+                        //$this->email_teachers($submission);
+                        print_heading(get_string('uploadedfile'));
+                    } else { 
+                        notify(get_string("uploadfailnoupdate", "assignment"));
+                    }
+                //if it's first student's submission
+                } else { 
+                    $newsubmission = $this->prepare_new_submission($USER->id);
+                    //submissions has been created, but not submitted for marking
+                    $newsubmission->timecreated  = time();
+                    $newsubmission->timemodified = '0';
+                    $newsubmission->data1 = get_string("submissionstatusdraft", "assignment");
+                    $newsubmission->numfiles = 1;
+                    if (insert_record('assignment_submissions', $newsubmission)) { 
+                        add_to_log($this->course->id, 'assignment', 'upload',
+                                'view.php?a='.$this->assignment->id, $this->assignment->id, $this->cm->id);
+                         //we email teachers on final upload
+                        //$this->email_teachers($newsubmission);
+                        print_heading(get_string('uploadedfile'));
+                    } else { 
+                        notify(get_string("uploadnotregistered", "assignment", $newfile_name));
                     }
                 }
-            } 
-            else {
-                error(get_string("uploaderror", "assignment")); //submitting not allowed!
             }
-            print_continue('view.php?id='.$this->cm->id);
-            $this->view_footer();
+        } else {  
+            notify(get_string("uploaderror", "assignment")); //submitting not allowed!
         }
+
+        print_continue('view.php?id='.$this->cm->id);
+
+        $this->view_footer();
     }
 
     //implements final upload (submitting for marking)
-    function final_upload($sesskey) {
+    function final_upload() { 
         global $CFG, $USER;
 
-        require_once($CFG->dirroot.'/lib/uploadlib.php');
-
-        if (!confirm_sesskey()) {
-            error('Bad Session Key');
-        }
+        require_capability('mod/assignment:submit', get_context_instance(CONTEXT_MODULE, $this->cm->id));
 
-        if (isguest($USER->id)) {
-            error(get_string('guestnoupload','assignment'));
-        } 
-        else if (isteacher($this->course->id, $USER->id, true) or isstudent($this->course->id, $USER->id)) {
-            $this->view_header(get_string('upload'));
-            $filecount = $this->count_user_files($USER->id);
-            $submission = $this->get_submission($USER->id);
+        $this->view_header(get_string('upload'));
+        $filecount = $this->count_user_files($USER->id);
+        $submission = $this->get_submission($USER->id);
 
-            if ($this->isopen() && ($this->assignment->var1 || $filecount || $this->assignment->resubmit || !$submission->timemarked)) {
-                if ($submission) {
-                    //TODO: change later to ">= 0", to prevent resubmission when graded 0
-                    if (($submission->grade > 0) and $this->assignment->resubmit) {
-                        error(get_string('submissionerror', 'assignment'));
-                    }
+        if ($this->isopen() && ($this->assignment->var1 || $filecount || $this->assignment->resubmit || !$submission->timemarked)) {
+            if ($submission) {
+                //TODO: change later to ">= 0", to prevent resubmission when graded 0
+                if (($submission->grade > 0) and !$this->assignment->resubmit) {
+                    notify(get_string('alreadygraded', 'assignment'));
                 }
+            }
 
-                $dir = $this->file_area_name($USER->id);
-                $um = new upload_manager('newfile',!$this->assignment->var1,false,$course,false,$this->assignment->maxbytes);
-
-                $newfile_name = $um->get_new_filename();
+            $dir = $this->file_area_name($USER->id);
+
+            require_once($CFG->dirroot.'/lib/uploadlib.php');
+            $um = new upload_manager('newfile',!$this->assignment->var1,false,$course,false,$this->assignment->maxbytes);
+
+            //files hass been preprocessed i saved already, we don't need to do it again
+            //if ($um->process_file_uploads($dir)) { 
+            $newfile_name = $um->get_new_filename(); 
+
+            //if student already submitted smth before
+            if ($submission) { 
+                //if there is no files uploaded we can't do final submit
+                 if ( $submission->numfiles == 0){ 
+                     notify(get_string("nofilesforsubmit","assignment"));//'uploadnofilefound'));
+                 }else{ 
+                    $submission->timemodified = time();
+                    //$submission->numfiles ++;
+                    //$submission->comment = addslashes($submission->comment);
+                    $submission->data1 = get_string("submissionstatussubmitted", "assignment");
+                    //unset($submission->data2);  // Don't need to update this.     
+                    if (update_record("assignment_submissions", $submission)) {
+                        add_to_log($this->course->id, 'assignment', 'upload',
+                                'view.php?a='.$this->assignment->id, $this->assignment->id, $this->cm->id);
+                        $this->email_teachers($submission);
+                        print_heading(get_string('markingsubmitnotification','assignment'));
 
-                //if student already submitted something before
-                if ($submission) {
-                    if ( $submission->numfiles == 0){
-                        error(get_string("nofilesforsubmit","assignment"));
-                    }
-                    else {
-                        $submission->timemodified = time();
-                        $submission->data1 = get_string("submissionstatussubmitted", "assignment");
-                        if (update_record("assignment_submissions", $submission)) {
-                            add_to_log($this->course->id, 'assignment', 'upload', 'view.php?a='.$this->assignment->id, $this->assignment->id, $this->cm->id);
-                        } 
-                        else {
-                            error(get_string("uploadfailnoupdate", "assignment"));
-                        }
-                    }
-                } 
-                else {
-                    error(get_string("nofilesforsubmit","assignment"));
-                }
-            } 
-            else {
-                error(get_string("uploaderror", "assignment")); //submitting not allowed!
+                    } else {
+                        notify(get_string("uploadfailnoupdate", "assignment"));
+                    }    
+                 }
+            //if it's first student's submission
+            } else {/*//probably this block can be removed. 
+                 $newsubmission = $this->prepare_new_submission($USER->id);
+                 $newsubmission->timecreated  = '0';
+                 $newsubmission->timemodified = '1';
+                 $newsubmission->data1 = get_string("submissionstatussubmitted", "assignment");  
+                 $newsubmission->numfiles = 1;
+                 if (insert_record('assignment_submissions', $newsubmission)) {
+                     add_to_log($this->course->id, 'assignment', 'upload',
+                            'view.php?a='.$this->assignment->id, $this->assignment->id, $this->cm->id);
+                     $this->email_teachers($newsubmission);
+                     print_heading(get_string('markingsubmitnotification','assignment'));
+                 } else {
+                     notify(get_string("uploadnotregistered", "assignment", $newfile_name) );
+                 }*/ 
+                notify(get_string("nofilesforsubmit","assignment"));
             }
-            notify(get_string('onceassignmentsent', 'assignment'));
-            print_continue('view.php?id='.$this->cm->id);
-
-            $this->view_footer();
-        } 
-        else {
-            error(get_string('unauthorizeduserupload', 'assignment'));
+        //  }
+        } else {   
+            notify(get_string("uploaderror", "assignment")); //submitting not allowed!
         }
+
+        print_continue('view.php?id='.$this->cm->id);
+
+        $this->view_footer();
     }
 
 
-    //from upload&review
+    //from upload&review 
     function response_file_area_name($userid, $teachid = 0) {
-        //Creates a directory file name, suitable for make_upload_directory()
+     //  Creates a directory file name, suitable for make_upload_directory()
         global $CFG, $USER;
         $fileloc = "";
-        
         if ($teachid == 0) {
             $fileloc = "$USER->id/$userid";
-        } 
-        else {
+        } else {
             $fileloc = "$teachid/$USER->id";
         }
         return $this->course->id.'/'.$CFG->moddata.'/assignment/'.$this->assignment->id.'/responses/'.$fileloc;
      }
 
-    //from upload&review
-    //make the folder which going to hold response files
-    function response_file_area($userid, $teachid = 0) {
+     //from upload&review
+     //make the folder which going to hold response files
+     function response_file_area($userid, $teachid = 0) {
         if ($teachid == 0) {
             return make_upload_directory( $this->response_file_area_name($userid) );
-        } 
-        else {
+        } else {
             return make_upload_directory( $this->response_file_area_name($userid, $teachid) );
         }
-    }
+     }
 
-    //from upload&review
-    //upload responce file
-    function response_upload($userid, $sesskey) {
+     //from upload&review
+     //upload responce file   
+     function response_upload($userid) {
         global $CFG, $USER;
 
-        require_once($CFG->dirroot.'/lib/uploadlib.php');
-
-        if (!confirm_sesskey()) {
-            error('Bad Session Key');
-        }
+       // $this->view_header(get_string('upload'));
 
         if (!$this->isopen()) {
-            error(get_string("uploadfailnoupdate", "assignment"));
-        } 
-        else {
+            notify(get_string("uploadfailnoupdate", "assignment"));
+        } else {
             $submission = $this->get_submission($userid);
+
             $dir = $this->response_file_area_name($userid);
+
+            require_once($CFG->dirroot.'/lib/uploadlib.php');
+            //$um = new upload_manager('newfile',true,false,$course,false,$this->assignment->maxbytes);
+            //set up $deletothers=false to allow multiple feedback uploads
             $um = new upload_manager('newfile',false,false,$course,false,$this->assignment->maxbytes);
 
             if ($um->process_file_uploads($dir)) {
                 $newfile_name = $um->get_new_filename();
                 if ($submission) {
-                    //stores teacher id's in data2 in comma-separated list so students can view all responses from all teachers
+                    // stores teacher id's in data2 in comma-separated list so students can view all responses from all teachers
                     if ($teachids = $submission->data2) {
                         $teachidarr = explode(',', $teachids);
                         $teachidexists = false;
@@ -508,492 +397,528 @@ class assignment_upload extends assignment_base {
                             $teachids .= ",$USER->id";
                         }
                         $submission->data2 = $teachids;
-                    } 
-                    else {
+                    } else {
                         $submission->data2 = $USER->id;
                     }
+                    //$submission->timemodified = time();
+                    //$submission->numfiles     = 1;
+                    //$submission->comment = addslashes($submission->comment);
 
-                    if (!update_record("assignment_submissions", $submission)) {
-                        error(get_string("uploadfailnoupdate", "assignment"));
-                    }
-                } 
-                else {
-                    error(get_string("studentrecorderror", "assignment"));
+                    if (update_record("assignment_submissions", $submission)) {
+                        $this->email_students($submission);
+                        //print_heading(get_string('uploadedfile'));
+                    } else {
+                        notify(get_string("uploadfailnoupdate", "assignment"));
+                    } 
+                } else {
+                    notify(get_string("studentrecorderror", "assignment"));
                 }
                 notify(get_string("uploadsuccessresponse", "assignment"));
             }
         }
+
+       // print_continue('view.php?id='.$this->cm->id);
+
+       // $this->view_footer();
     }
 
-    /*
-     *Display and process the submissions
-     */
-    function process_feedback($sesskey) {
-        global $USER;
+     //from upload&review
+    function email_students($submission) {
+        /// Alerts students by email of assignments that recieve a new response
+//      Email students when uploaded & when grade changed?
+        global $CFG;
 
-        if (!confirm_sesskey()) {
-            error('Bad Session Key');
+        //changed from var1 to var2 becasue of the merging two assignment types
+        if (empty($this->assignment->var2)) {          // No need to do anything
+            return;
         }
+/*
+        $user = get_record('user', 'id', $submission->userid);
 
-        if (!$feedback = data_submitted()) {      //No incoming data?
-            return false;
+        if (groupmode($this->course, $this->cm) == SEPARATEGROUPS) {   // Separate groups are being used
+            if (!$group = user_group($this->course->id, $user->id)) {             // Try to find a group
+                $group->id = 0;                                             // Not in a group, never mind
+            }
+            $teachers = get_group_teachers($this->course->id, $group->id);        // Works even if not in group
+        } else {
+            $teachers = get_course_teachers($this->course->id);
+        }
+
+        if ($teachers) {
+
+            $strassignments = get_string('modulenameplural', 'assignment');
+            $strassignment  = get_string('modulename', 'assignment');
+            $strsubmitted  = get_string('submitted', 'assignment');
+
+            foreach ($teachers as $teacher) {
+                unset($info);
+                $info->username = fullname($user);
+                $info->assignment = format_string($this->assignment->name,true);
+                $info->url = $CFG->wwwroot.'/mod/assignment/submissions.php?id='.$this->cm->id;
+
+                $postsubject = $strsubmitted.': '.$info->username.' -> '.$this->assignment->name;
+                $posttext = $this->email_teachers_text($info);
+                $posthtml = ($teacher->mailformat == 1) ? $this->email_teachers_html($info) : '';
+
+                @email_to_user($teacher, $user, $postsubject, $posttext, $posthtml);  // If it fails, oh well, too bad.
+            }
         }
+*/
+    }
+
 
+    /*
+     *  Display and process the submissions 
+     */ 
+    function process_feedback() {                 
+                
+        global $USER;
+        if (!$feedback = data_submitted()) {      // No incoming data?
+            return false;
+        }     
+                          
         ///For save and next, we need to know the userid to save, and the userid to go...
         ///We use a new hidden field in the form, and set it to -1. If it's set, we use this
         ///as the userid to store...
         //removed by Oksana. it was braking functionality and submitting teacher's feedback to.. teacher-user
-        //this was inherited from upload type. check if nothing brakes???????????????
-        if ((int)$feedback->saveuserid !== -1){
+        //this was inherited from upload type. check if nothing brackes???????????????
+        if ((int)$feedback->saveuserid !== -1) {
             $feedback->userid = $feedback->saveuserid;
-        }
-        if (!empty($feedback->cancel)) {      //User hit cancel button
+        }       
+        if (!empty($feedback->cancel)) {          // User hit cancel button
             return false;
         }
-        
-        //Get or make a new submission
-        $newsubmission = new stdClass;
-        $newsubmission = $this->get_submission($feedback->userid, true);
+       
+        $newsubmission = $this->get_submission($feedback->userid, true);  // Get or make one
         $newsubmission->grade      = $feedback->grade;
-        $newsubmission->comment    = $feedback->comment;
+        $newsubmission->submissioncomment    = $feedback->submissioncomment;
         $newsubmission->format     = $feedback->format;
         $newsubmission->teacher    = $USER->id;
+        $newsubmission->mailed     = 0;       // Make sure mail goes out (again, even)
         $newsubmission->timemarked = time();
-
-        if ($feedback->grade != -1 ) {
-            $newsubmission->data1 = get_string('submissionstatusgraded', 'assignment');
+        //marker graded assignment then status set into Marked; if marker didn't grade it then status set into Returned 
+        if (/*$feedback->grade != 0 && */ $feedback->grade != -1 ) {
+            $newsubmission->data1 = get_string("submissionstatusmarked", "assignment");
         }
         else {
-            $newsubmission->data1 = get_string('submissionstatusreturned', 'assignment');
+            $newsubmission->data1 = get_string("submissionstatusreturned", "assignment");
         }
+        //unset($newsubmission->data1);  // Don't need to update this.
+        //unset($newsubmission->data2);  // Don't need to update this.
 
-        if (!update_record('assignment_submissions', $newsubmission)) {
+        if (! update_record('assignment_submissions', $newsubmission)) {
             return false;
         }
-
-        add_to_log($this->course->id, 'assignment', 'update grades', 'submissions.php?id='.$this->assignment->id.'&user='.$feedback->userid, $feedback->userid, $this->cm->id);
-
-        $newsubmission->data1 = addslashes($newsubmission->data1);
-        unset($newsubmission->data2); //Don't need to update
-        $newsubmission->comment = addslashes($newsubmission->comment);
-
+        
+        add_to_log($this->course->id, 'assignment', 'update grades', 
+                   'submissions.php?id='.$this->assignment->id.'&user='.$feedback->userid, $feedback->userid, $this->cm->id);   
+        
         return $newsubmission;
-    }
-
+                 
+    }   
+    
     /*
-     *Top-level function for handling of submissions called by submissions.php
+     * Top-level function for handling of submissions called by submissions.php
      *
      */
     //from lib.php
     //needed to update case of fastgrading. upgrade upload_statuses
     function submissions($mode) {
+        ///The main switch is changed to facilitate
+        ///1) Batch fast grading
+        ///2) Skip to the next one on the popup
+        ///3) Save and Skip to the next one on the popup
+
         //make user global so we can use the id
         global $USER;
 
-        $id      = required_param('id', PARAM_INT);         // Course module ID
-        $userid  = optional_param('userid', PARAM_INT);     // User ID
-        $comment = optional_param('comment', '', PARAM_ALPHANUM);  //replaced $_POST['comment']
-        $menu    = optional_param('menu', '', PARAM_ALPHANUM);  //replaced $_POST['menu']
-        $colum   = optional_param($col, '', PARAM_ALPHANUM);  //replaced $_POST['$col']
-
-        //Guests, non-studnets and non-teachers are not allowed to view student's or teacher's assignment information.
-        if (isguest($USER->id)){
-            error(get_string('unauthorizeduser', 'assignment'));
-        } else if (isstudent($this->course->id, $USER->id)){
-            error(get_string('unauthorizeduser', 'assignment'));
-        } else if (!isteacher($this->course->id, $USER->id, true)){
-            error(get_string('unauthorizeduser', 'assignment'));
-        } else {
-            if ($submission = $this->get_submission()) {
-                if ($submission->timemarked == true) {
-                    print_simple_box($this->print_user_files($USER->id, true), 'center');
-                    $this->view_feedback();
+        switch ($mode) {
+            case 'grade':                         // We are in a popup window grading
+                if ($submission = $this->process_feedback()) {
+                    //IE needs proper header with encoding
+                    print_header(get_string('feedback', 'assignment').':'.format_string($this->assignment->name));
+                    print_heading(get_string('changessaved'));
+                    $this->update_main_listing($submission);
+                } 
+                close_window();
+
+                break;
+
+            case 'single':                        // We are in a popup window displaying submission
+                $this->display_submission();
+                break;
+
+            case 'all':                           // Main window, display everything
+                $this->display_submissions();
+                break;
+
+            case 'fastgrade': 
+                ///do the fast grading stuff  - this process should work for all 3 subclasses
+                $grading    = false;
+                $commenting = false;
+                $col        = false;
+                if (isset($_POST['submissioncomment'])) {
+                    $col = 'submissioncomment';
+                    $commenting = true;
                 }
-                else if ($filecount >= 0) {
-                    print_simple_box($this->print_user_files($USER->id, true), 'center');
+                if (isset($_POST['menu'])) {
+                    $col = 'menu';
+                    $grading = true;
                 }
-                if ($submission->data2 != NULL) {
-                    print_heading(get_string('responsesfromteacher', 'assignment'));
-                    $this->print_response_students(true);
+                if (!$col) {
+                    //both submissioncomment and grade columns collapsed..
+                    $this->display_submissions();
+                    break;
                 }
-            }
 
-            switch ($mode) {
-                case 'grade':
-                    //We are in a popup window grading
-                    if ($submission = $this->process_feedback(sesskey())) {
-                        print_header(get_string('feedback', 'assignment').':'.format_string($this->assignment->name));
-                        print_heading(get_string('changessaved'));
-                        $this->update_main_listing($submission);
+                foreach ($_POST[$col] as $id => $unusedvalue) {
+
+                    $id = (int)$id; //clean parameter name
+                    if (!$submission = $this->get_submission($id)) {
+                        $submission = $this->prepare_new_submission($id);
+                        $newsubmission = true;
+                    } else {
+                        $newsubmission = false;
                     }
-                    close_window();
-                    break;
-                
-                case 'single':
-                    //We are in a popup window displaying submission
-                    $this->display_submissions(sesskey());
-                    break;
-                
-                case 'all':
-                    //Main window, display everything
-                    $this->display_submissions(sesskey());
-                    break;
+                    unset($submission->data1);  // Don't need to update this.
+                    unset($submission->data2);  // Don't need to update this.
+
+                    //for fast grade, we need to check if any changes take place
+                    $updatedb = false;
 
-                case 'fastgrade':
-                    //fast grading - this process should work for all 3 subclasses
-                    $grading    = false;
-                    $commenting = false;
-                    $col        = false;
-                    if ($comment) {
-                        $col = 'comment';
-                        $commenting = true;
+                    if ($grading) { 
+                        $grade = $_POST['menu'][$id];  
+                        $updatedb = $updatedb || ($submission->grade != $grade);
+                        $submission->grade = $grade;
+                    } else {
+                        if (!$newsubmission) {
+                            unset($submission->grade);  // Don't need to update this.
+                        }
                     }
-                    if ($menu) {
-                        $col = 'menu';
-                        $grading = true;
+
+                    //change status if assignment was graded or returned
+                    if ($submission->grade != -1 ) {
+                         $submission->data1 = get_string("submissionstatusmarked", "assignment");
                     }
-                    if (!$col) {
-                        //both comment and grade columns collapsed..
-                        $this->display_submissions(sesskey());
-                        break;
+                    else {
+                         $submission->data1 = get_string("submissionstatusreturned", "assignment");
+                    }
+                    if ($commenting) {
+                        $commentvalue = trim($_POST['submissioncomment'][$id]);
+                        $updatedb = $updatedb || ($submission->submissioncomment != stripslashes($commentvalue));
+                        $submission->submissioncomment = $commentvalue;
+                    } else {
+                        unset($submission->submissioncomment);  // Don't need to update this.
                     }
 
-                    foreach ($colum as $id => $unusedvalue){
-
-                        $id = (int)$id; //clean parameter name
-                        if (!$submission = $this->get_submission($id)) {
-                            $submission = $this->prepare_new_submission($id);
-                            $newsubmission = true;
-                        } 
-                        else {
-                            $newsubmission = false;
-                        }
-                        $submission->data1 = addslashes($submission->data1);
-                        unset($submission->data2); //Don't need to update
+                    $submission->teacher    = $USER->id;
+                    $submission->mailed     = $updatedb?0:$submission->mailed;//only change if it's an update
+                    $submission->timemarked = time();
 
-                        //for fast grade, we need to check if any changes take place
-                        $updatedb = false;
+                    //if it is not an update, we don't change the last modified time etc.
+                    //this will also not write into database if no submissioncomment and grade is entered.
 
-                        if ($grading) {
-                            $grade = $menu[$id];
-                            $updatedb = $updatedb || ($submission->grade != $grade);
-                            $submission->grade = $grade;
-                        }
-                        else {
-                            if (!$newsubmission) {
-                                unset($submission->grade);  // Don't need to update this.
+                    if ($updatedb) {
+                        if ($newsubmission) {
+                            if (!insert_record('assignment_submissions', $submission)) {
+                                return false;
                             }
-                        }
-                        
-                        //change status if assignment was graded or returned
-                        if ($submission->grade != -1 )
-                             $submission->data1 = get_string('submissionstatusgraded', 'assignment');
-                        else
-                             $submission->data1 = get_string('submissionstatusreturned', 'assignment');
-
-                        if ($commenting) {
-                            $commentvalue = trim($comment[$id]);
-                            $updatedb = $updatedb || ($submission->comment != stripslashes($commentvalue));
-                            $submission->comment = $commentvalue;
                         } else {
-                            unset($submission->comment);  // Don't need to update this.
-                        }
-
-                        $submission->teacher    = $USER->id;
-                        $submission->timemarked = time();
-
-                        //if it is not an update, we don't change the last modified time etc.
-                        //this will also not write into database if no comment and grade is entered.
-                        if ($updatedb){
-                            if ($newsubmission) {
-                                if (!insert_record('assignment_submissions', $submission)) {
-                                    return false;
-                                }
-                            } else {
-                                if (!update_record('assignment_submissions', $submission)) {
-                                    return false;
-                                }
+                            if (!update_record('assignment_submissions', $submission)) {
+                                return false;
                             }
-                            //add to log only if updating
-                            add_to_log($this->course->id, 'assignment', 'update grades', 'submissions.php?id='.$this->assignment->id.'&user='.$submission->userid, $submission->userid, $this->cm->id);
                         }
+                        //add to log only if updating
+                        add_to_log($this->course->id, 'assignment', 'update grades',
+                                   'submissions.php?id='.$this->assignment->id.'&user='.$submission->userid,
+                                   $submission->userid, $this->cm->id);
                     }
-                    $this->display_submissions();
-                    break;
 
-                case 'next':
-                    // in pop up skip to next without saving
-                    $this->display_submission();
-                    break;
+                }
+                $this->display_submissions();
+                break;
 
-                case 'saveandnext':
-                    //We are in pop up. save the current one and go to the next one.
-                    //first we save the current changes
-                    if ($submission = $this->process_feedback()) {
-                        $this->update_main_listing($submission);
-                    }
-                    $this->display_submission();
-                    break;
 
-                default:
-                    error ("There has been an error, cannot move or save to the next assignment!!");
-                    break;
-            }
+            case 'next':
+                /// We are currently in pop up, but we want to skip to next one without saving.
+                ///    This turns out to be similar to a single case
+                /// The URL used is for the next submission.
+
+                $this->display_submission();
+                break;
+
+            case 'saveandnext':
+                ///We are in pop up. save the current one and go to the next one.
+                //first we save the current changes
+                if ($submission = $this->process_feedback()) {
+                    //print_heading(get_string('changessaved'));
+                    $this->update_main_listing($submission);
+                }
+
+                //then we display the next submission
+                $this->display_submission();
+                break;
+
+            default:
+                echo "something seriously is wrong!!";
+                break;
         }
     }
 
-    /*
-      function that updates the listing on the main script from popup
-      using javascript
-      from lib.php
-      needed to display teachers response files and upload_statuses
-    */
+    //function that updates the listing on the main script from popup using javascript
+    //from lib.php
+    //needed to display teachers responce files and upload_statuses
     function update_main_listing($submission) {
         global $SESSION;
 
         $perpage = get_user_preferences('assignment_perpage', 10);
+
         $quickgrade = get_user_preferences('assignment_quickgrade', 0);
 
         /// Run some Javascript to try and update the parent page
         echo '<script type="text/javascript">'."\n<!--\n";
-        if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['comment'])) {
+        if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['submissioncomment'])) {
             if ($quickgrade){
-                echo 'opener.document.getElementById("comment['.$submission->userid.']").value="'.trim($submission->comment).'";'."\n";
-             } 
-             else {
-                echo 'opener.document.getElementById("com'.$submission->userid.'").innerHTML="'.shorten_text(trim(strip_tags($submission->comment)), 15)."\";\n";
+                echo 'opener.document.getElementById("submissioncomment['.$submission->userid.']").value="'
+                .trim($submission->submissioncomment).'";'."\n";
+             } else {
+                echo 'opener.document.getElementById("com'.$submission->userid.
+                '").innerHTML="'.shorten_text(trim(strip_tags($submission->submissioncomment)), 15)."\";\n";
             }
         }
 
         if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['grade'])) {
+            //echo optional_param('menuindex');
             if ($quickgrade){
-                echo 'opener.document.getElementById("menumenu['.$submission->userid.']").selectedIndex="'.required_param('menuindex', 0, PARAM_INT).'";'."\n";
+                echo 'opener.document.getElementById("menumenu['.$submission->userid.
+                ']").selectedIndex="'.required_param('menuindex', 0, PARAM_INT).'";'."\n";
             } else {
-                echo 'opener.document.getElementById("g'.$submission->userid.'").innerHTML="'.$this->display_grade($submission->grade)."\";\n";
-
+                echo 'opener.document.getElementById("g'.$submission->userid.'").innerHTML="'.
+                $this->display_grade($submission->grade)."\";\n";
             }
         }
 
         //need to add student's assignments in there too.
         if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['timemodified']) &&
             $submission->timemodified) {
-            echo 'opener.document.getElementById("ts'.$submission->userid.'").innerHTML="'.addslashes($this->print_student_answer($submission->userid)).userdate($submission->timemodified)."\";\n";
+            echo 'opener.document.getElementById("ts'.$submission->userid.
+                 '").innerHTML="'.addslashes($this->print_student_answer($submission->userid)).userdate($submission->timemodified)."\";\n";
         }
 
         if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['timemarked']) &&
             $submission->timemarked) {
             //display teachers feedback files here as well
-            echo 'opener.document.getElementById("tt'.$submission->userid.'").innerHTML="'.addslashes($this->print_user_response_files($submission->userid,false)).userdate($submission->timemarked)."\";\n";
+            echo 'opener.document.getElementById("tt'.$submission->userid.
+                 '").innerHTML="'.addslashes($this->print_user_response_files($submission->userid,false)).userdate($submission->timemarked)."\";\n";
          }
 
         if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['status'])) {
             echo 'opener.document.getElementById("up'.$submission->userid.'").className="s1";';
             //replace "Update" by upload_status
-            $buttontext =  $submission->data1;
-            $button = link_to_popup_window ('/mod/assignment/submissions.php?id='.$this->cm->id.'&amp;userid='.$submission->userid.'&amp;mode=single'.'&amp;offset='.optional_param('offset', '', PARAM_INT), 'grade'.$submission->userid, $buttontext, 450, 700, $buttontext, 'none', true, 'button'.$submission->userid);
+            $buttontext =  $submission->data1; //get_string('update');             
+            $button = link_to_popup_window ('/mod/assignment/submissions.php?id='.$this->cm->id.'&amp;userid='.$submission->userid.'&amp;mode=single'.'&amp;offset='.optional_param('offset', '', PARAM_INT),
+                      'grade'.$submission->userid, $buttontext, 450, 700, $buttontext, 'none', true, 'button'.$submission->userid);
             echo 'opener.document.getElementById("up'.$submission->userid.'").innerHTML="'.addslashes($button).'";';
         }
         echo "\n-->\n</script>";
         flush();
     }
 
-    //display student's submission for marking in pop-up window
+//display student's submission for marking in pop-up window
     function display_submission() {
 
         global $CFG, $offset;
-        
-        $userid = required_param('userid', PARAM_INT);   //the user's id
-        $offset = required_param('offset', PARAM_INT);
-
-        // Guests, non-studnets and non-teachers are not allowed to view student's or teacher's assignment information.
-        if (isguest($USER->id)) {
-            error(get_string('unauthorizeduser', 'assignment'));
-        } else if (isstudent($this->course->id, $USER->id)) {
-            error(get_string('unauthorizeduser', 'assignment'));
-        } else if (!isteacher($this->course->id, $USER->id, true)) {
-            error(get_string('unauthorizeduser', 'assignment'));
-        } else {
-            if (!$user = get_record('user', 'id', $userid)) {
-                error(get_string('nouser'));
-            }
 
-            if (!$submission = $this->get_submission($user->id)) {
-                $submission = $this->prepare_new_submission($userid);
-            }
+        $userid = required_param('userid', PARAM_INT);
+        $offset = required_param('offset', PARAM_INT);//offset for where to start looking for student.
 
-            if ($submission->timemodified > $submission->timemarked) {
-                $subtype = 'assignmentnew';
-            } 
-            else {
-                $subtype = 'assignmentold';
-            }
+        if (!$user = get_record('user', 'id', $userid)) {
+            error('No such user!');
+        }
 
-            $course     = $this->course;
-            $assignment = $this->assignment;
-            $cm         = $this->cm;
+        if (!$submission = $this->get_submission($user->id)) {
+            $submission = $this->prepare_new_submission($userid);
+        }
 
-            if ($groupmode = groupmode($course, $cm)) {   // Groups are being used
-                $currentgroup = setup_and_print_groups($course, $groupmode, 'submissions.php?id='.$this->cm->id);
-            } else {
-                $currentgroup = false;
-            }
+        if ($submission->timemodified > $submission->timemarked) {
+            $subtype = 'assignmentnew';
+        } else {
+            $subtype = 'assignmentold';
+        }
 
-            // Get all teachers and students
-            if ($currentgroup) {
-                $users = get_group_users($currentgroup);
-            } else {
-                $users = get_course_users($course->id);
-            }
+        ///construct SQL, using current offset to find the data of the next student
+        $course     = $this->course;
+        $assignment = $this->assignment;
+        $cm         = $this->cm;
 
-            $sql_next_student = next_student_sql($this->assignment->id, $users);
+        if ($groupmode = groupmode($course, $cm)) {   // Groups are being used
+            $currentgroup = setup_and_print_groups($course, $groupmode, 'submissions.php?id='.$this->cm->id);
+        } else {
+            $currentgroup = false;
+        }
 
-            $nextid = 0;
-            if (($auser = get_record_sql($sql_next_student, false, true)) !== false) {
-                $nextid = $auser->id;
-            }
-            print_header(get_string('feedback', 'assignment').':'.$user->firstname. ' '. $user->lastname.':'.format_string($this->assignment->name));
+    /// Get all teachers and students
+        if ($currentgroup) {
+            $users = get_group_users($currentgroup);
+        } else {
+            $users = get_course_users($course->id);
+        }
 
-            ///Some javascript to help with setting up student grading >.>
+        $select = 'SELECT u.id, u.id, u.firstname, u.lastname, u.picture,'.
+                  's.id AS submissionid, s.grade, s.submissioncomment, s.timemodified, s.timemarked, ((s.timemarked > 0) AND (s.timemarked >= s.timemodified)) AS status ';
+        $sql = 'FROM '.$CFG->prefix.'user u '.
+               'LEFT JOIN '.$CFG->prefix.'assignment_submissions s ON u.id = s.userid AND s.assignment = '.$this->assignment->id.' '.
+               'WHERE u.id IN ('.implode(',', array_keys($users)).') AND s.data1 <> "Draft"  AND s.data1 <> ""';
+        //we don't need to grade draft or empty assignments
 
-            echo '<script type="text/javascript">'."\n";
-            echo 'function setNext(){'."\n";
-            echo 'document.submitform.mode.value=\'next\';'."\n";
-            echo 'document.submitform.userid.value="'.$nextid.'";'."\n";
-            echo '}'."\n";
+        require_once($CFG->libdir.'/tablelib.php');
+        if ($sort = flexible_table::get_sql_sort('mod-assignment-submissions')) {
+            $sort = 'ORDER BY '.$sort.' ';
+        }
 
-            echo 'function saveNext(){'."\n";
-            echo 'document.submitform.mode.value=\'saveandnext\';'."\n";
-            echo 'document.submitform.userid.value="'.$nextid.'";'."\n";
-            echo 'document.submitform.saveuserid.value="'.$userid.'";'."\n";
-            echo 'document.submitform.menuindex.value = document.submitform.grade.selectedIndex;'."\n";
-            echo '}'."\n";
+        $limit = sql_paging_limit($offset+1, 1);
+        $nextid = 0;
+        if (($auser = get_record_sql($select.$sql.$sort.$limit, false, true)) !== false) {
+            $nextid = $auser->id;
+        }
+//1111
+//echo "$auser->id $auser->firstname $auser->lastname -next user <br /> $offset -- offset <br /> $userid -- present userid ";
+//echo $offset."-offset on display submission<br>";
+        print_header(get_string('feedback', 'assignment').':'.fullname($user, true).':'.format_string($this->assignment->name));
 
-            echo '</script>'."\n";
+        ///SOme javascript to help with setting up >.>
 
-            // Prints upload form for teachers to upload response file
-            $this->view_upload_response_form($userid,$offset);
-            //+++
-            echo '<table border="0" align="center" cellpadding="5" cellspacing="1" class="feedback '.$subtype.'" >';
+        echo '<script type="text/javascript">'."\n";
+        echo 'function setNext(){'."\n";
+        echo 'document.submitform.mode.value=\'next\';'."\n";
+        echo 'document.submitform.userid.value="'.$nextid.'";'."\n";
+        echo '}'."\n";
 
-            ///Start of teacher info row
+        echo 'function saveNext(){'."\n";
+        echo 'document.submitform.mode.value=\'saveandnext\';'."\n";
+        echo 'document.submitform.userid.value="'.$nextid.'";'."\n";
+        echo 'document.submitform.saveuserid.value="'.$userid.'";'."\n";
+        echo 'document.submitform.menuindex.value = document.submitform.grade.selectedIndex;'."\n";
+        echo '}'."\n";
 
-            echo '<tr>';
-            echo '<td width="35" valign="top" class="picture teacher">';
-            if ($submission->teacher) {
-                $teacher = get_record('user', 'id', $submission->teacher);
-            } else {
-                global $USER;
-                $teacher = $USER;
-            }
-            print_user_picture($teacher->id, $this->course->id, $teacher->picture);
-            echo '</td>';
-            echo '<td class="content">';
-            echo '<form name="submitform" action="submissions.php" method="post">';
-            echo '<input type="hidden" name="offset" value="'.++$offset.'">';
-            echo '<input type="hidden" name="userid" value="'.$userid.'" />';
-            echo '<input type="hidden" name="id" value="'.$this->cm->id.'" />';
-            echo '<input type="hidden" name="mode" value="grade" />';
-            //selected menu index
-            echo '<input type="hidden" name="menuindex" value="0" />';
-            //new hidden field, initialized to -1.
-            echo '<input type="hidden" name="saveuserid" value="-1" />';
-
-            // Shows teacher response files to teacher
-            echo "<div class=\"from\">". get_string('responsefile','assignment')."</div>";
-            echo $this->print_user_response_files($userid,true,--$offset);
-            echo "<br /><br />";
+        echo '</script>'."\n";
 
-            if ($submission->timemarked) {
-                echo '<div class="from">';
-                echo '<div class="fullname">'.$auser->firstname. ' '. $auser->lastname.'</div>';
-                echo '<div class="time">'.userdate($submission->timemarked).'</div>';
-                echo '</div>';
-            }
+//+++
+        // Prints upload form for teachers to upload response file
+        $this->view_upload_response_form($userid,$offset);
+//+++
+        echo '<table border="0" align="center" cellpadding="5" cellspacing="1" class="feedback '.$subtype.'" >';
 
-            echo '<div class="grade">'.get_string('grade').':';
-            choose_from_menu(make_grades_menu($this->assignment->grade), 'grade', $submission->grade, get_string('nograde'), '', -1);
+        ///Start of teacher info row
 
+        echo '<tr>';
+        echo '<td width="35" valign="top" class="picture teacher">';
+        if ($submission->teacher) {
+            $teacher = get_record('user', 'id', $submission->teacher);
+        } else {
+            global $USER;
+            $teacher = $USER;
+        }
+        print_user_picture($teacher->id, $this->course->id, $teacher->picture);
+        echo '</td>';
+        echo '<td class="content">';
+        echo '<form name="submitform" action="submissions.php" method="post">';
+        echo '<input type="hidden" name="offset" value="'.++$offset.'">'; //was ++$offset!!!!!!!
+        echo '<input type="hidden" name="userid" value="'.$userid.'" />';
+        echo '<input type="hidden" name="id" value="'.$this->cm->id.'" />';
+        echo '<input type="hidden" name="mode" value="grade" />';
+        echo '<input type="hidden" name="menuindex" value="0" />';//selected menu index
+  //new hidden field, initialized to -1.
+        echo '<input type="hidden" name="saveuserid" value="-1" />';
+//++++++
+        // Shows teacher response files to teacher
+        echo "<div class=\"from\">". get_string('responsefile','assignment')."</div>";
+        echo $this->print_user_response_files($userid,true,--$offset);
+        echo "<br /><br />";
+////++++
+        if ($submission->timemarked) {
+            echo '<div class="from">';
+            echo '<div class="fullname">'.fullname($teacher, true).'</div>';
+            echo '<div class="time">'.userdate($submission->timemarked).'</div>';
             echo '</div>';
-            echo '<div class="clearer"></div>';
-
-
-            $this->preprocess_submission($submission);
+        }
+        echo '<div class="grade">'.get_string('grade').':';
+        choose_from_menu(make_grades_menu($this->assignment->grade), 'grade', $submission->grade, get_string('nograde'), '', -1);
+        echo '</div>';
+        echo '<div class="clearer"></div>';
 
-            echo '<br />';
-            print_textarea($this->usehtmleditor, 14, 58, 0, 0, 'comment', $submission->comment, $this->course->id);
+        $this->preprocess_submission($submission);
 
-            if ($this->usehtmleditor) {
-                echo '<input type="hidden" name="format" value="'.FORMAT_HTML.'" />';
-            } 
-            else {
-                echo '<div align="right" class="format">';
-                choose_from_menu(format_text_menu(), "format", $submission->format, "");
-                helpbutton("textformat", get_string("helpformatting"));
-                echo '</div>';
-            }
+        echo '<br />';
+        print_textarea($this->usehtmleditor, 14, 58, 0, 0, 'submissioncomment', $submission->submissioncomment, $this->course->id);
 
-            ///Print Buttons in Single View
-            echo '<div class="buttons" align="center">';
-            echo '<input type="submit" name="submit" value="'.get_string('savechanges').'" onclick = "document.submitform.menuindex.value = document.submitform.grade.selectedIndex" />';
-            echo '<input type="submit" name="cancel" value="'.get_string('cancel').'" />';
-            //if there are more to be graded.
-            if ($nextid) {
-                echo '<input type="submit" name="saveandnext" value="'.get_string('saveandnext').'" onclick="saveNext()" />';
-                echo '<input type="submit" name="next" value="'.get_string('next').'" onclick="setNext();" />';
-            }
-            echo '</div>';
-            echo '</form>';
-            echo '</td></tr>';
-            //End of teacher info row, Start of student info row
-            echo '<tr>';
-            echo '<td width="35" valign="top" class="picture user">';
-            print_user_picture($user->id, $this->course->id, $user->picture);
-            echo '</td>';
-            echo '<td class="topic">';
-            echo '<div class="from">';
-            echo '<div class="fullname">'.$auser->firstname. ' '. $auser->lastname.'</div>';
-            if ($submission->timemodified) {
-                echo '<div class="time">'.userdate($submission->timemodified).
-                                         $this->display_lateness($submission->timemodified).'</div>';
-            }
+        if ($this->usehtmleditor) {
+            echo '<input type="hidden" name="format" value="'.FORMAT_HTML.'" />';
+        } else {
+            echo '<div align="right" class="format">';
+            choose_from_menu(format_text_menu(), "format", $submission->format, "");
+            helpbutton("textformat", get_string("helpformatting"));
             echo '</div>';
-            $this->print_user_files($user->id);
-            echo '</td>';
-            echo '</tr>';
+        }
 
-            ///End of student info row
+        ///Print Buttons in Single View
+        echo '<div class="buttons" align="center">';
+        echo '<input type="submit" name="submit" value="'.get_string('savechanges').'" onclick = "document.submitform.menuindex.value = document.submitform.grade.selectedIndex" />';
+        echo '<input type="submit" name="cancel" value="'.get_string('cancel').'" />';
+        //if there are more to be graded.
+        if ($nextid) {
+            echo '<input type="submit" name="saveandnext" value="'.get_string('saveandnext').'" onclick="saveNext()" />';
+            echo '<input type="submit" name="next" value="'.get_string('next').'" onclick="setNext();" />';
+        }
+        echo '</div>';
+        echo '</form>';
+        echo '</td></tr>';
+  ///End of teacher info row, Start of student info row
+        echo '<tr>';
+        echo '<td width="35" valign="top" class="picture user">';
+        print_user_picture($user->id, $this->course->id, $user->picture);
+        echo '</td>';
+        echo '<td class="topic">';
+        echo '<div class="from">';
+        echo '<div class="fullname">'.fullname($user, true).'</div>';
+        if ($submission->timemodified) {
+            echo '<div class="time">'.userdate($submission->timemodified).
+                                     $this->display_lateness($submission->timemodified).'</div>';
+        }
+        echo '</div>';
+        $this->print_user_files($user->id);
+        echo '</td>';
+        echo '</tr>';
 
-            echo '</table>';
+        ///End of student info row
 
-            if ($this->usehtmleditor) {
-                use_html_editor();
-            }
+        echo '</table>';
 
-            print_footer('none');
+        if ($this->usehtmleditor) {
+            use_html_editor();
         }
+
+        print_footer('none');
     }
 
-    /*
-      From upload&review
-      Prints response files to students
-    */
+    //from upload&review
+    // Prints response files to students
     function print_response_students($return) {
         global $CFG, $USER;
-        require_once($CFG->libdir.'/filelib.php');
-        
+
         $stuid = $USER->id;
 
         echo '<table border="0" align="center" cellpadding="5" cellspacing="1" class="feedback">';
 
         $submission = $this->get_submission($stuid);
-
-        // Only will show files if there is a submission
-        if ($teachids = $submission->data2) {
+        if ($teachids = $submission->data2) {           // Only will show files if there is a submission
             $teachidarr = explode(',', $teachids);
+
             foreach ($teachidarr as $t) {
                 if (! $teacher = get_record('user', 'id', $t)) {
                     print_object($submission);
-                    error(get_string('teachererror', 'assignment'));
+                    error('Could not find the teacher');
                 }
                 echo '<tr>';
                 echo '<td class="left picture">';
@@ -1001,7 +926,7 @@ class assignment_upload extends assignment_base {
                 echo '</td>';
                 echo '<td class="topic">';
                 echo '<div class="from">';
-                echo '<div class="fullname">'.$auser->firstname. ' '. $user->lastname.'</div>';
+                echo '<div class="fullname">'.fullname($teacher).'</div>';
                 echo '</div>';
 
                 $filearea = $this->response_file_area_name($stuid, $t);
@@ -1009,75 +934,78 @@ class assignment_upload extends assignment_base {
                     $output = '';
                     if ($files = get_directory_list($basedir)) {
                         foreach ($files as $key => $file) {
+                            require_once($CFG->libdir.'/filelib.php');
                             $icon = mimeinfo('icon', $file);
                             if ($CFG->slasharguments) {
-                                $ffurl = "mod/assignment/type/uploadreview/file.php/$filearea/$file";
-                            }
-                            else {
-                                $ffurl = "mod/assignment/type/uploadreview/file.php?file=/$filearea/$file";
+                                $ffurl = "$CFG->wwwroot/mod/assignment/type/uploadreview/file.php/$filearea/$file";
+                            } else {
+                                $ffurl = "$CFG->wwwroot/mod/assignment/type/uploadreview/file.php?file=/$filearea/$file";
                             }
+                                              /*echo '<div class="files"><center><img align="middle" src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />'.
+                                               link_to_popup_window ('/'.$ffurl, 'file'.$key, $file, 450, 580, $file, 'none', true).'</div></center><br />';
+                                               echo '</td></tr>';*/
+                                              //displays multiple teachers responces
+                            $output .='<img align="middle" src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />'.
+                            link_to_popup_window ('/'.$ffurl, 'file'.$key, $file, 450, 580, $file, 'none', true)."<br />";
                         }
-                        //displays multiple teachers responces
-                        $output .='<img align="middle" src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />';
-                        $output .= link_to_popup_window ('/'.$ffurl, 'file'.$key, $file, 450, 580, $file, 'none', true)."<br />";
                     }
                 }
+                echo '<div class="files"><left>'.$output.'</left></div>';
+                echo '</td></tr>';
             }
-            echo '<div class="files"><left>'.$output.'</left></div>';
-            echo '</td></tr>';
+            echo '</table>';
         }
-        echo '</table>';
     }
 
-
     //print teacher's files
-    function print_user_response_files($stuid,$display_remove_button=false,$offset=NULL){
+    function print_user_response_files($stuid,$display_remove_button=false,$offset=NULL) {//, $return=false) {
 
         global $CFG, $USER;
+
         $userid = $USER->id;
 
         $filearea = $this->response_file_area_name($stuid);
+
         $output = '';
+
         if ($basedir = $this->response_file_area($stuid)) {
             if ($files = get_directory_list($basedir)) {
                 require_once($CFG->libdir.'/filelib.php');
                 foreach ($files as $key => $file) {
+
                     $icon = mimeinfo('icon', $file);
 
-                    if ($CFG->slasharguments) {
+                    if ($CFG->slasharguments) { 
                         $ffurl = "file.php/$filearea/$file";
-                    } 
-                    else {
+                    } else {
                         $ffurl = "file.php?file=/$filearea/$file";
                     }
+
                     //get feedback file size, generate and display remove file link
                     $filesize = display_size(filesize($basedir."/".$file));
-                    $remove_link='';
-                    if ($display_remove_button) {
-                        $course_mod_id=$this->cm->id;
-                        $deleteurl="$CFG->wwwroot/mod/assignment/type/upload/deleteonesubmission.php?confirm=0&view=teacher&userid=$stuid&id=$course_mod_id&name=$file&file=".$filearea."/".$file."&offset=".$offset."&sesskey=".sesskey();
-                        $remove_link='[<a href="'.$deleteurl.'">'.get_string("removelink", "assignment").'</a>]'."";
+                    $remove_link=''; 
+                    if ($display_remove_button) { 
+                         $course_mod_id=$this->cm->id;           
+                         $deleteurl="$CFG->wwwroot/mod/assignment/type/upload/deleteonesubmission.php?confirm=0&view=teacher&userid=$stuid&id=$course_mod_id&name=$file&file=".$basedir."/".$file."&offset=".$offset;
+                         $remove_link='[<a href="'.$deleteurl.'">'.get_string("removelink", "assignment").'</a>]';
                     }
                     $output .= '<img align="middle" src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />'.
-                    $output .= $file.' ['.$filesize.'] '.$remove_link.'<br />';
+                             // link_to_popup_window ('/'.$ffurl, 'file'.$key, $file, 450, 580, $file, 'none', true).
+                             $file.' ['.$filesize.'] '.$remove_link.'<br />'; 
                 }
             }
         }
         $output = '<div class="files">'.$output.'</div>';
+
         return $output;
     }
 
-    /*
-      print student's files. 
-      if it's teacher view - teacher can view the files, but can't delete them
-      if it's student's view - student can delete files, but can't view them
-    */
+    //print student's files. 
+    //if it's teacher view - teacher can view the files, but can't delete them
+    //if it's student's view - stident can delete files, but can't view them
     function print_user_files($userid=0, $return=false) {
         global $CFG, $USER;
 
-        require_once($CFG->libdir.'/filelib.php');
-
-
         if (!$userid) {
             if (!isloggedin()) {
                 return '';
@@ -1086,11 +1014,14 @@ class assignment_upload extends assignment_base {
         }
 
         $filearea = $this->file_area_name($userid);
+
         $output = '';
 
         if ($basedir = $this->file_area($userid)) {
             if ($files = get_directory_list($basedir)) {
+
                 foreach ($files as $key => $file) {
+                    require_once($CFG->libdir.'/filelib.php');
 
                     $icon = mimeinfo('icon', $file);
                     //get filesize for displaying
@@ -1098,32 +1029,31 @@ class assignment_upload extends assignment_base {
 
                     if ($CFG->slasharguments) {
                         $ffurl = "$CFG->wwwroot/file.php/$filearea/$file";
-                    }
-                    else {
+                    } else {
                         $ffurl = "$CFG->wwwroot/file.php?file=/$filearea/$file";
                     } 
-                    if (isteacher($this->course->id, $USER->id, true)) {
-                        $output .= '<img align="middle" src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" /><a href="'.$ffurl.'" >'.$file.'</a> ['.$filesize.'] <br />';
-                    }
-                    else {
-                        if (isset($USER->id)) {
-                            if ($submission = $this->get_submission($USER->id)){
-                                //changed timemodified=0 for Draft assignments so student's see their own submissions                        
+                    if (has_capability('mod/assignment:grade', get_context_instance(CONTEXT_MODULE, $this->course->id))) {
+                        $output .= '<img align="middle" src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />'.
+                                   '<a href="'.$ffurl.'" >'.$file.'</a> ['.$filesize.'] <br />';
+                    } else {
+                        if (!empty($USER->id)) {
+                            if ($submission = $this->get_submission($USER->id)) { 
+                                    //i have changed timemodified=0 for Draft assignments, thats' why we remove this condition 
+                                    //otherwise student's dont' se etheir own submissions
+//                                 if ($submission->timemodified) { 
                                 if ($submission->timemodified <= $this->assignment->timedue || empty($this->assignment->timedue)) {
+                                            //remove link shouldn't be displayed if file was marked or submited for marking
                                     $remove_link = ''; 
                                     if ($submission->data1 == get_string("submissionstatusdraft", "assignment") || $submission->data1 == get_string("submissionstatusreturned", "assignment")) {
                                         $course_mod_id=$this->cm->id;  
-                                        $deleteurl="$CFG->wwwroot/mod/assignment/type/upload/deleteonesubmission.php?confirm=0&view=student&userid=$userid&id=$course_mod_id&name=$file&file=".$filearea."/".$file."&sesskey=".sesskey();
+                                        $deleteurl="$CFG->wwwroot/mod/assignment/type/upload/deleteonesubmission.php?confirm=0&view=student&userid=$userid&id=$course_mod_id&name=$file&file=".$basedir."/".$file;
                                         $remove_link= '[<a href="'.$deleteurl.'">'.get_string("removelink", "assignment").'</a>]'; //students of the course
-                                    }
-                                    $file_path = "$CFG->wwwroot/file.php?file=/$filearea/$file";
-                                    $file_link = '<a href="'.$file_path.'">'.$file.'</a>';
-                                    $output .= '<img align="middle" src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />'.$file_link.' ['.$filesize.']'.$remove_link.'<br />';                                
-                                }
-                                else {
+                                    } 
+                                    $output .= '<img align="middle" src="'.$CFG->pixpath.'/f/'.$icon.'" height="16" width="16" alt="'.$icon.'" />'.$file.' ['.$filesize.']'.$remove_link.'<br />';
+                                } else {
                                     $output .= '';
                                 }
-                            }
+                             }
                         }
                     }
                 }
@@ -1139,50 +1069,50 @@ class assignment_upload extends assignment_base {
     }
 
     /*
-     *Display all the submissions ready for grading    
-     *from lib.php
-     *we needed so select more information from database and add 
-     *upload_statuses display
-     */
+    *  Display all the submissions ready for grading
+    */
+    //from lib.php
+    //we needed so select more information from database and add upload_statuses display
     function display_submissions() {
-        global $CFG, $db, $USER;
+         global $CFG, $db, $USER;
 
-        require_once($CFG->libdir.'/tablelib.php');
-
-
-        //see if the form has just been submitted to request user_preference updates
-        $updatepref = optional_param('updatepref', '', PARAM_ALPHANUM);
-        if (isset($updatepref)){
+        /* first we check to see if the form has just been submitted
+         * to request user_preference updates
+         */
+        if (isset($_POST['updatepref'])) {
             $perpage = optional_param('perpage', 10, PARAM_INT);
             $perpage = ($perpage <= 0) ? 10 : $perpage ;
             set_user_preference('assignment_perpage', $perpage);
             set_user_preference('assignment_quickgrade', optional_param('quickgrade',0, PARAM_BOOL));
         }
 
-        // get perpage and quickgrade params from database
+        /* next we get perpage and quickgrade (allow quick grade) params
+         * from database
+         */
         $perpage    = get_user_preferences('assignment_perpage', 10);
         $quickgrade = get_user_preferences('assignment_quickgrade', 0);
  
-        $teacherattempts = true;
+        $teacherattempts = true; /// Temporary measure
         $page    = optional_param('page', 0, PARAM_INT);
         $strsaveallfeedback = get_string('saveallfeedback', 'assignment');
 
-        //Some shortcuts to make the code read better
+        /// Some shortcuts to make the code read better
+
         $course     = $this->course;
         $assignment = $this->assignment;
         $cm         = $this->cm;
 
-        //tabindex for quick grading tabbing; Not working for dropdowns yet  
-        $tabindex = 1; 
+        $tabindex = 1; //tabindex for quick grading tabbing; Not working for dropdowns yet
 
         add_to_log($course->id, 'assignment', 'view submission', 'submissions.php?id='.$this->assignment->id, $this->assignment->id, $this->cm->id);
 
         print_header_simple(format_string($this->assignment->name,true), "", '<a href="index.php?id='.$course->id.'">'.$this->strassignments.'</a> -> <a href="view.php?a='.$this->assignment->id.'">'.format_string($this->assignment->name,true).'</a> -> '. $this->strsubmissions, '', '', true, update_module_button($cm->id, $course->id, $this->strassignment), navmenu($course, $cm));
 
         //change column name to upload_status to allow ordering by upload_statuses
-        $tablecolumns = array('picture', 'fullname', 'grade', 'comment', 'timemodified', 'timemarked', 'upload status');
+        $tablecolumns = array('picture', 'fullname', 'grade', 'submissioncomment', 'timemodified', 'timemarked', 'upload_status');
         $tableheaders = array('', get_string('fullname'), get_string('grade'), get_string('comment', 'assignment'), get_string('lastmodified').' ('.$course->student.')', get_string('lastmodified').' ('.$course->teacher.')', get_string('status'));
 
+        require_once($CFG->libdir.'/tablelib.php');
         $table = new flexible_table('mod-assignment-submissions');
 
         $table->define_columns($tablecolumns);
@@ -1199,7 +1129,7 @@ class assignment_upload extends assignment_base {
         $table->column_class('picture', 'picture');
         $table->column_class('fullname', 'fullname');
         $table->column_class('grade', 'grade');
-        $table->column_class('comment', 'comment');
+        $table->column_class('submissioncomment', 'comment');
         $table->column_class('timemodified', 'timemodified');
         $table->column_class('timemarked', 'timemarked');
         $table->column_class('status', 'status');
@@ -1213,20 +1143,17 @@ class assignment_upload extends assignment_base {
         // Start working -- this is necessary as soon as the niceties are over
         $table->setup();
 
-        // Check to see if groups are being used in this assignment
-        // Groups are being used
-        if ($groupmode = groupmode($course, $cm)) {   
+        /// Check to see if groups are being used in this assignment
+        if ($groupmode = groupmode($course, $cm)) {   // Groups are being used
             $currentgroup = setup_and_print_groups($course, $groupmode, 'submissions.php?id='.$this->cm->id);
-        } 
-        else {
+        } else {
             $currentgroup = false;
         }
 
-        // Get all teachers and students
+        /// Get all teachers and students
         if ($currentgroup) {
             $users = get_group_users($currentgroup);
-        } 
-        else {
+        } else {
             $users = get_course_users($course->id);
         }
 
@@ -1240,24 +1167,52 @@ class assignment_upload extends assignment_base {
             }
         }
 
-       if (empty($users)) {
+        if (empty($users)) {
             print_heading(get_string('noattempts','assignment'));
             return true;
         }
 
+        /// Construct the SQL
+
+        if ($where = $table->get_sql_where()) {
+            $where .= ' AND ';
+        }
+
+        if ($sort = $table->get_sql_sort()) {
+            $sort = ' ORDER BY '.$sort;
+        }
+
+        //select has been modified. because we also need to get student id & assignment status == upload_status = {Draft, Submitted, Marked, Returned}
+        $select = 'SELECT u.id, u.id, u.firstname, u.lastname, u.picture, u.idnumber, s.id AS submissionid, s.grade, s.submissioncomment, s.timemodified, s.timemarked, ((s.timemarked > 0) AND (s.timemarked >= s.timemodified)) AS status, s.data1 as upload_status ';
+
+        // $select = 'SELECT u.id, u.id, u.firstname, u.lastname, u.picture, s.id AS submissionid, s.grade, s.comment, s.timemodified, s.timemarked, ((s.timemarked > 0) AND (s.timemarked >= s.timemodified)) AS status ';
+        $sql = 'FROM '.$CFG->prefix.'user u '.
+               'LEFT JOIN '.$CFG->prefix.'assignment_submissions s ON u.id = s.userid AND s.assignment = '.$this->assignment->id.' '.
+               'WHERE '.$where.'u.id IN ('.implode(',', array_keys($users)).') ';
+
         $table->pagesize($perpage, count($users));
 
-        $customQuery = display_submissions_sql($table, $users, $this->assignment->id);
+        if($table->get_page_start() !== '' && $table->get_page_size() !== '') {
+            $limit = ' '.sql_paging_limit($table->get_page_start(), $table->get_page_size());
+        }
+        else {
+            $limit = '';
+        }
 
-        // offset used to calculate index of student in that particular query, needed for the pop up to know who's next
+        ///offset used to calculate index of student in that particular query, needed for the pop up to know who's next
         $offset = $page * $perpage;
 
-        if (($ausers = get_records_sql($customQuery)) !== false) {
+        // we have changed the wording.
+        //$strupdate = get_string('update');
+        //$strgrade  = get_string('grade');
+        $grademenu = make_grades_menu($this->assignment->grade);
+
+        if (($ausers = get_records_sql($select.$sql.$sort.$limit)) !== false) {
 
             foreach ($ausers as $auser) {
                 $picture = print_user_picture($auser->id, $course->id, $auser->picture, false, true);
 
-                if (empty($auser->submissionid)) {
+                if (empty($auser->submissionid)){
                     $auser->grade = -1; //no submission yet
                 }
 
@@ -1266,21 +1221,21 @@ class assignment_upload extends assignment_base {
                     $auser->upload_status=get_string("submissionstatusblank", "assignment");
                 }
                 if (!empty($auser->submissionid)) {
-                   
-                  //Print student answer and student modified date attach file or print link to student answer, depending on the type of the assignment.
-                  //Refer to print_student_answer in inherited classes do not display draft submissions to marker.                   
+                   ///Prints student answer and student modified date
+                   ///attach file or print link to student answer, depending on the type of the assignment.
+                   ///Refer to print_student_answer in inherited classes
+                   // do not display draft submissions to marker.
                     if ($auser->timemodified > 0 &&  $auser->upload_status != get_string("submissionstatusdraft", "assignment")) {
                         $studentmodified = '<div id="ts'.$auser->id.'">'.$this->print_student_answer($auser->id).userdate($auser->timemodified).'</div>';
                     } else {
                         $studentmodified = '<div id="ts'.$auser->id.'">&nbsp;</div>';
                     }
-                    
                     ///Print grade, dropdown or text
                     if ($auser->timemarked > 0) {
                         //display teachers feedback files here as well
                         $teachermodified = '<div id="tt'.$auser->id.'">'.$this->print_user_response_files($auser->id,false).userdate($auser->timemarked).'</div>';
                         //disable grading ability in case of Blank or Draft assignment
-                        if ($quickgrade ){
+                        if ($quickgrade) {//&& ($auser->upload_status != get_string("submissionstatusdraft", "assignment") ||  !$auser->upload_status )){//  get_string("submissionstatusblank", "assignment"))){
                             $grade = '<div id="g'.$auser->id.'">'.choose_from_menu(make_grades_menu($this->assignment->grade),
                             'menu['.$auser->id.']', $auser->grade, get_string('nograde'),'',-1,true,false,$tabindex++).'</div>';
                         } else {
@@ -1290,7 +1245,7 @@ class assignment_upload extends assignment_base {
                     } else {
                         $teachermodified = '<div id="tt'.$auser->id.'">&nbsp;</div>';
 
-                        if ($quickgrade && $auser->upload_status != get_string("submissionstatusdraft", "assignment") &&  $auser->upload_status != get_string("submissionstatusblank", "assignment")){
+                        if ($quickgrade && $auser->upload_status != get_string("submissionstatusdraft", "assignment") &&  $auser->upload_status != get_string("submissionstatusblank", "assignment")) {
                             $grade = '<div id="g'.$auser->id.'">'.choose_from_menu(make_grades_menu($this->assignment->grade),
                             'menu['.$auser->id.']', $auser->grade, get_string('nograde'),'',-1,true,false,$tabindex++).'</div>';                            
                         } else {
@@ -1298,53 +1253,52 @@ class assignment_upload extends assignment_base {
                         }
                     }
                     ///Print Comment
-                    if ($quickgrade && $auser->upload_status != get_string("submissionstatusdraft", "assignment") &&  $auser->upload_status != get_string("submissionstatusblank", "assignment")){
-                        $comment = '<div id="com'.$auser->id.'"><textarea tabindex="'.$tabindex++.'" name="comment['.$auser->id.']" id="comment['.$auser->id.']">'.($auser->comment).'</textarea></div>';
+                    if ($quickgrade && $auser->upload_status != get_string("submissionstatusdraft", "assignment") &&  $auser->upload_status != get_string("submissionstatusblank", "assignment")) {
+                        $comment = '<div id="com'.$auser->id.'"><textarea tabindex="'.$tabindex++.'" name="submissioncomment['.$auser->id.']" id="submissioncomment['.$auser->id.']">'.($auser->submissioncomment).'</textarea></div>';
                     } else {
-                        $comment = '<div id="com'.$auser->id.'">'.shorten_text(strip_tags($auser->comment),15).'</div>';
+                        $comment = '<div id="com'.$auser->id.'">'.shorten_text(strip_tags($auser->submissioncomment),15).'</div>';
                     }
                 } else {
                     $studentmodified = '<div id="ts'.$auser->id.'">&nbsp;</div>';
                     $teachermodified = '<div id="tt'.$auser->id.'">&nbsp;</div>';
                     $status          = '<div id="st'.$auser->id.'">&nbsp;</div>';
 
-                    if ($quickgrade  && $auser->upload_status != get_string("submissionstatusdraft", "assignment") &&  $auser->upload_status != get_string("submissionstatusblank", "assignment") ){ 
-                        // allow editing
+                    if ($quickgrade  && $auser->upload_status != get_string("submissionstatusdraft", "assignment") &&  $auser->upload_status != get_string("submissionstatusblank", "assignment")) { // allow editing
                         $grade = '<div id="g'.$auser->id.'">'.choose_from_menu(make_grades_menu($this->assignment->grade),
                                  'menu['.$auser->id.']', $auser->grade, get_string('nograde'),'',-1,true,false,$tabindex++).'</div>';
                     } else {
                         $grade = '<div id="g'.$auser->id.'">-</div>';
                     }
                     if ($quickgrade && $auser->upload_status != get_string("submissionstatusdraft", "assignment") &&  $auser->upload_status != get_string("submissionstatusblank", "assignment") ){
-                        $comment = '<div id="com'.$auser->id.'"><textarea tabindex="'.$tabindex++.'" name="comment['.$auser->id.']" id="comment['.$auser->id.']">'.($auser->comment).'</textarea></div>';
+                        $comment = '<div id="com'.$auser->id.'"><textarea tabindex="'.$tabindex++.'" name="submissioncomment['.$auser->id.']" id="submissioncomment['.$auser->id.']">'.($auser->submissioncomment).'</textarea></div>';
                     } else {
                         $comment = '<div id="com'.$auser->id.'">&nbsp;</div>';
                     }
                 }
 
                 //display upload statuses instead of old ones ={Grade, Update}
-            
+                //if ($auser->status === NULL) {
+                //    $auser->status = 0;
+                //}                
                 $buttontext=$auser->upload_status;
+                //$buttontext = ($auser->status == 1) ? $strupdate : $strgrade;
 
-        //do not display link to the grading pop-up if upload_status={Blank, Draft}
+                //do not display link to the grading pop-up if upload_status={Blank, Draft}
                 if ($auser->upload_status == get_string("submissionstatusdraft", "assignment") || $auser->upload_status ==  get_string("submissionstatusblank", "assignment")){
                    $button = $buttontext;
-                }
-                else{
-                
+                } else {
                    ///No more buttons, we use popups ;-).                
                    $button = link_to_popup_window ('/mod/assignment/submissions.php?id='.$this->cm->id.'&amp;userid='.$auser->id.'&amp;mode=single'.'&amp;offset='.$offset++,'grade'.$auser->id, $buttontext, 500, 780, $buttontext, 'none', true, 'button'.$auser->id); 
                 }
                 //changed to $auser->upload_status
                 $status  = '<div id="up'.$auser->id.'" class="s'.$auser->upload_status.'">'.$button.'</div>';
-                $row = array($picture, $auser->firstname. ' '. $auser->lastname, $grade, $comment, $studentmodified, $teachermodified, $status);
+                $row = array($picture, $this->fullname($auser), $grade, $comment, $studentmodified, $teachermodified, $status);
                 $table->add_data($row);
             }
-        
         }
 
         /// Print quickgrade form around the table
-        if ($quickgrade){
+        if ($quickgrade) {
             echo '<form action="submissions.php" name="fastg" method="post">';
             echo '<input type="hidden" name="id" value="'.$this->cm->id.'">';
             echo '<input type="hidden" name="mode" value="fastgrade">';
@@ -1353,7 +1307,7 @@ class assignment_upload extends assignment_base {
 
         $table->print_html();  /// Print the whole table
 
-        if ($quickgrade){
+        if ($quickgrade) {
             echo '<p align="center"><input type="submit" name="fastg" value="'.get_string('saveallfeedback', 'assignment').'" /></p>';
             echo '</form>';
         }
@@ -1376,7 +1330,7 @@ class assignment_upload extends assignment_base {
         print_string('quickgrade','assignment');
         echo ':</td>';
         echo '<td align="left">';
-        if ($quickgrade){
+        if ($quickgrade) {
             echo '<input type="checkbox" name="quickgrade" value="1" checked="checked" />';
         } else {
             echo '<input type="checkbox" name="quickgrade" value="1" />';
@@ -1393,109 +1347,139 @@ class assignment_upload extends assignment_base {
     }
 
     //deletes submitted file (assignment or response)
-    function deleteonesubmission (){
-         global $CFG, $USER;
-         
-         require_login($this->course->id, false, $cm);
-
-         require_once($CFG->libdir.'/filelib.php');
-
-         $id      = required_param('id', PARAM_INT);            //Course module ID
-         $a       = optional_param('a', '', PARAM_INT);         //Assignment ID
-         $file    = optional_param('file', '', PARAM_PATH);     //file path 
-         $userid  = $USER->id;                                  //current user's id
-         $confirm = optional_param('confirm', '', PARAM_INT);   //confirmation of deletion
-         $name    = optional_param('name', '', PARAM_FILE);     //name of file
-         $offset  = optional_param('offset', '', PARAM_INT);    //offset value
-         $view    = optional_param('view', '', PARAM_ALPHA);  
-
-         $submission = $this->get_submission($USER->id);        //teacher or student view 
-         $filearea = $this->file_area_name($userid);
-         
-         //path where upload assignment is located
-         $filepath = "$CFG->dataroot/$filearea/$name";
-         $SESSION->file_path = $filepath;
-         $fileresponse = $this->response_file_area_name($userid);
-        
-         //path where reponse files are held
-         $fileresponsepath = "$CFG->dataroot/$fileresponse/$name";
-         $SESSION->file_response_path = $fileresponsepath;
-         
-         if ($view == 'teacher'){
-          if (!isteacher($this->course->id, $USER->id, true)){
-            error(get_string('deleteerror', 'assignment'));         
-          } else {  
-            $yes_url = "$CFG->wwwroot/mod/assignment/type/upload/deleteonesubmission.php?confirm=1&view=teacher&userid=$userid&id=$id&name=$name&offset=$offset&sesskey=".sesskey();
+    function deleteonesubmission () {
+        global $CFG, $USER;
+
+        require_once($CFG->libdir.'/filelib.php');
+
+        $id      = required_param('id', PARAM_INT); // Course module ID
+        $a       = optional_param('a');             // Assignment ID
+        $file    = optional_param('file', '', PARAM_PATH);
+        $userid  = optional_param('userid');
+        $confirm = optional_param('confirm');
+        $name    = optional_param('name');
+        $offset  = optional_param('offset');
+        $view    = optional_param('view');          //teacher or student view
+
+        $submission = $this->get_submission($USER->id);
+
+
+        if ($view == 'teacher') {
+            $yes_url = "$CFG->wwwroot/mod/assignment/type/upload/deleteonesubmission.php?confirm=1&view=teacher&userid=$userid&id=$id&name=$name&file=$file&offset=$offset";
             $no_url =  "../../submissions.php?userid=$userid&id=$id&mode=single&offset=$offset";
-            
             $back_button = get_string("backtofeedback", "assignment");
             $action_url = '../../submissions.php';
-            }   
-         }else{
-            $yes_url = "$CFG->wwwroot/mod/assignment/type/upload/deleteonesubmission.php?confirm=1&view=student&userid=$userid&id=$id&name=$name&offset=$offset&sesskey=".sesskey();
+        } else {
+            $yes_url = "$CFG->wwwroot/mod/assignment/type/upload/deleteonesubmission.php?confirm=1&view=student&userid=$userid&id=$id&name=$name&file=$file&offset=$offset";
             $no_url =  "../../view.php?id=$id&offset=$offset";
             $back_button = get_string("backtoassignment", "assignment");
             $action_url = '../../view.php';
-         }
-         
-        if ($view == 'student') $this->view_header();
-        
-            // see if the user is a student if not, then they can't delete files, except for their assignment response file 
-            if (!isstudent($this->courseid->id, $USER->id) || isteacher($this->course->id)){
-                if (!empty($confirm)) {
-                    //this code will allow the teacher to delete the user response
-                    //file
-                    if($view == 'teacher') {
-                        fulldelete($SESSION->file_response_path);}
-                    else {
-                    if (!fulldelete($SESSION->file_path)) { 
-                        print_object($SESSION);
-                        error(get_string("deletefail", "assignment").'  '.$name);
+        }
+
+        if ($view == 'student') {
+            $this->view_header();
+        }
+
+        if (!empty($confirm)) {
+
+            if (!fulldelete($file)) { 
+                notify(get_string("deletefail", "assignment"));
+                notify($file);
+            } else {
+               //if student deletes submitted files then numfiles should be changed
+                if ($view == 'student'){
+                    $submission->numfiles --;
+                    if (update_record("assignment_submissions", $submission)) {
+                        notify(get_string("deleteednotification", "assignment"));
+                    } else {  
+                        notify(get_string("deletefail", "assignment"));
+                        notify($file);
                     }
-                else {
-                    //if student deletes submitted files then numfiles should be changed
-                    if ($view == 'student'){
-                        //deleting the files                                                    
-                        fulldelete($SESSION->file_path);   
-
-                        $submission->numfiles--;
-
-                        if (update_record("assignment_submissions", $submission)) {
-                            error(get_string("deleteednotification", "assignment"));
-                        } 
-                        else {  
-                            error(get_string("deletefail", "assignment"));
-                        }
-                   }
-                   else {
-                      error(get_string("deleteednotification", "assignment")); 
-                   }
-                } 
+                } else {
+                    notify(get_string("deleteednotification", "assignment")); 
+                }
+                    
             }
+/* echo '<form name="submitform" action="submissions.php" method="post">';
+        echo '<input type="hidden" name="offset" value="'.++$offset.'">';
+        echo '<input type="hidden" name="userid" value="'.$userid.'" />';
+        echo '<input type="hidden" name="id" value="'.$this->cm->id.'" />';
+        echo '<input type="hidden" name="mode" value="grade" />';
+        echo '<input type="hidden" name="menuindex" value="0" />';//selected menu index
+  //new hidden field, initialized to -1.
+        echo '<input type="hidden" name="saveuserid" value="-1" />';
+*/
             echo "<form action=\"".$action_url."\">";
             echo '<input type="hidden" name="offset" value="'.$offset.'">';
             echo "<input type=\"hidden\" value=\"$userid\" name=\"userid\">";
             echo "<input type=\"hidden\" value=\"$id\" name=\"id\">";
+           //echo "<input type=\"hidden\" value=\"$a\" name=\"a\">";
             echo "<input type=\"hidden\" value=\"single\" name=\"mode\">";
             echo "<center><input type=\"submit\" value=\"".$back_button."\" name=\"submit\"></center></form>";
-         
-            } 
-            else {
-                notify (get_string("namedeletefile", "assignment"));
-                notify($name);
-                notice_yesno (get_string("deletecheckfile", "assignment"), $yes_url, $no_url);
+             
+        } else {
+            notify (get_string("namedeletefile", "assignment"));
+            notify($name);
+            notice_yesno (get_string("deletecheckfile", "assignment"), $yes_url, $no_url);
+        }
+
+        if ($view == 'student') $this->view_footer();
+
+    }
+
+  //from moodlelib.php
+  //we need to dispaly studentID along with student name in a grading interface
+    function fullname($user, $override=false) {
+
+        global $CFG, $SESSION;
+
+        $user_id='';
+        if ($user->idnumber) {
+            $user_id = ' ('. $user->idnumber .') ';
+        }
+
+        if (!isset($user->firstname) and !isset($user->lastname)) {
+            return '';
+        }
+
+        if (!$override) {
+            if (!empty($CFG->forcefirstname)) {
+                $user->firstname = $CFG->forcefirstname;
+            }
+            if (!empty($CFG->forcelastname)) {
+                $user->lastname = $CFG->forcelastname;
             }
         }
-        else {
-            error(get_string('unauthorizeduser', 'assignment'));
+
+        if (!empty($SESSION->fullnamedisplay)) {
+            $CFG->fullnamedisplay = $SESSION->fullnamedisplay;
         }
 
-        if ($view == 'student') {
-            $this->view_footer();
+        if ($CFG->fullnamedisplay == 'firstname lastname') {
+            return $user->firstname .' '. $user->lastname . $user_id;
+
+        } else if ($CFG->fullnamedisplay == 'lastname firstname') {
+            return $user->lastname .' '. $user->firstname . $user_id;
+
+        } else if ($CFG->fullnamedisplay == 'firstname') {
+            if ($override) {
+                return get_string('fullnamedisplay', '', $user);
+            } else {
+                return $user->firstname . $user_id;;
+            }
+        } else if ($CFG->fullnamedisplay == 'textuid') {
+            if ( $override ) {
+               return get_string('fullnamedisplay', '', $user) . $user_id;
+            } else if (isset($user->username)) {
+               return $user->username . $user_id;
+            } else {
+               return $user->firstname . $user_id;
+            }
         }
 
-        unset($SESSION->file_path);
-        unset($SESSION->file_response_path);
+        return get_string('fullnamedisplay', '', $user) . $user_id;
     }
+
 }
+
 ?>
index 908471620f7e5a5e7bf0af41d44063a4dfafbff2..a228fd1fb222ac8ef8449224f8959abde552a0b9 100644 (file)
@@ -4,11 +4,11 @@
 
     $id      = optional_param('id');            // Course module ID
     $a       = optional_param('a');             // Assignment ID
-
-    $sesskey = required_param('sesskey', PARAM_ALPHANUM);
-    if (!confirm_sesskey()) {
-         error('Bad Session Key');
-    }
+    $userid  = required_param('userid');
+    $file    = optional_param('file', '', PARAM_PATH);
+    $name    = optional_param('name', '', PARAM_FILE);
+    $offset  = optional_param('offset');
+    $view    = optional_param('view');          //teacher or student view
  
     if ($id) {
         if (! $cm = get_record("course_modules", "id", $id)) {
             error("Course Module ID was incorrect");
         }
     }
+
     require_login($course->id, false, $cm);
-   
+
 /// Load up the required assignment code
+
     require($CFG->dirroot.'/mod/assignment/type/'.$assignment->assignmenttype.'/assignment.class.php');
     $assignmentclass = 'assignment_'.$assignment->assignmenttype;
     $assignmentinstance = new $assignmentclass($cm->id, $assignment, $cm, $course);
-      
-    $assignmentinstance->deleteonesubmission()   // delete file 
+
+    $assignmentinstance->deleteonesubmission()   // delete file
+
 ?>
index 52f96174ab2aff336acabb947f0126e8a4567dfd..ab27e9dd2fa6d84e1d136f8fdaca532ce393d2f4 100644 (file)
@@ -1,60 +1,82 @@
-<?php\r
-    if (empty($form->resubmit)) {\r
-        $form->resubmit = 0;  //upload&rev: =1\r
-    }\r
-    if (empty($form->maxbytes)) {\r
-        $form->maxbytes = $CFG->assignment_maxbytes;\r
-    }\r
-    if (empty($form->emailteachers)) {\r
-        $form->emailteachers = '';\r
-    }\r
-    //allow multiple files (from new upload type)\r
-    if (empty($form->var1)) {\r
-        $form->var1 = 0; \r
-    }\r
-    //email to students (from upload&review)\r
-    if (empty($form->var2)) {\r
-        $form->var2 = '';\r
-    }\r
-    //declaring $options[]\r
-    $options[0] = get_string("no");\r
-    $options[1] = get_string("yes");\r
-\r
-?>\r
-\r
-<table align="center" cellpadding="5" cellspacing="0">\r
-\r
-<tr valign="top">\r
-    <td align="right"><b><?php print_string("maximumsize", "assignment") ?>:</b></td>\r
-    <td>\r
-    <?php\r
-        $choices = get_max_upload_sizes($CFG->maxbytes, $this->course->maxbytes);\r
-        choose_from_menu ($choices, "maxbytes", $form->maxbytes, "");\r
-    ?>\r
-  </td>\r
-</tr>\r
-<tr>\r
-    <td align="right"><b><?php print_string("allowmultiple", "assignment") ?>:</b></td>\r
-    <td>\r
-    <?php\r
-        choose_from_menu($options, "var1", $form->var1, "");\r
-    ?>\r
-    </td>\r
-</tr>\r
-\r
-<tr>\r
-    <td align="right"><b><?php print_string("allowresubmit", "assignment") ?>:</b></td>\r
-    <td>\r
-    <?php\r
-        choose_from_menu($options, "resubmit", $form->resubmit, ""); //that's how it's un U&R\r
-    //    choose_from_menu($options, "var2", $form->var2, "");\r
-        helpbutton("resubmit", get_string("allowresubmit", "assignment"), "assignment");\r
-    ?>\r
-    </td>\r
-</tr>\r
-</table>\r
-\r
-<center>\r
-<br />\r
-<input type="submit" value="<?php print_string("continue") ?>" />\r
-</center>\r
+<?php
+    if (empty($form->resubmit)) {
+        $form->resubmit = 0;  //upload&rev: =1
+    }
+    if (empty($form->maxbytes)) {
+        $form->maxbytes = $CFG->assignment_maxbytes;
+    }
+    if (empty($form->emailteachers)) {
+        $form->emailteachers = '';
+    }
+    //allow multiple files (from new upload type)
+    if (empty($form->var1)) {
+        $form->var1 = 0; 
+    }
+    //email to students (from upload&review)
+    if (empty($form->var2)) {
+        $form->var2 = '';
+    }
+
+?>
+
+<table align="center" cellpadding="5" cellspacing="0">
+
+<tr valign="top">
+    <td align="right"><b><?php print_string("maximumsize", "assignment") ?>:</b></td>
+    <td>
+    <?php
+        $choices = get_max_upload_sizes($CFG->maxbytes, $this->course->maxbytes);
+        choose_from_menu ($choices, "maxbytes", $form->maxbytes, "");
+    ?>
+  </td>
+</tr>
+<tr>
+    <td align="right"><b><?php print_string("allowmultiple", "assignment") ?>:</b></td>
+    <td>
+    <?php
+        $options[0] = get_string("no"); $options[1] = get_string("yes");
+        choose_from_menu($options, "var1", $form->var1, "");
+    ?>
+    </td>
+</tr>
+
+<tr>
+    <td align="right"><b><?php print_string("allowresubmit", "assignment") ?>:</b></td>
+    <td>
+    <?php 
+        $options[0] = get_string("no"); $options[1] = get_string("yes");
+        choose_from_menu($options, "resubmit", $form->resubmit, ""); //that's how it's un U&R
+    //    choose_from_menu($options, "var2", $form->var2, "");
+        helpbutton("resubmit", get_string("allowresubmit", "assignment"), "assignment");
+    ?>
+    </td>
+</tr>
+
+<tr>
+    <td align="right"><b><?php print_string("emailteachers", "assignment") ?>:</b></td>
+    <td>
+    <?php 
+        $options[0] = get_string("no"); $options[1] = get_string("yes");
+        choose_from_menu($options, "emailteachers", $form->emailteachers, "");
+        helpbutton("emailteachers", get_string("emailteachers", "assignment"), "assignment");
+    ?>
+    </td>
+</tr>
+<tr>
+        <td align="right"><b><?php print_string("emailstudents", "assignment") ?>:</b></td>
+        <td>
+        <?php
+                $options[0] = get_string("no"); $options[1] = get_string("yes");
+                choose_from_menu($options, "var2", $form->var2, "");
+        //        choose_from_menu($options, "emailstudents", $form->emailstudents, "");
+                helpbutton("emailstudents", get_string("emailstudents", "assignment"), "assignment");
+        ?>
+        </td>
+</tr>
+
+</table>
+
+<center>
+<br />
+<input type="submit" value="<?php print_string("continue") ?>" />
+</center>