From 9b8c9d379cbcb5ffa2cf9b600925bf26fe2419b4 Mon Sep 17 00:00:00 2001
From: toyomoyo <toyomoyo>
Date: Tue, 5 Jun 2007 01:54:19 +0000
Subject: [PATCH] part of the user management improvements on enrolment, forgot
 to check this in

---
 user/groupextendenrol.php | 161 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100755 user/groupextendenrol.php

diff --git a/user/groupextendenrol.php b/user/groupextendenrol.php
new file mode 100755
index 0000000000..23d1b56cde
--- /dev/null
+++ b/user/groupextendenrol.php
@@ -0,0 +1,161 @@
+<?php  // $Id$
+require_once("../config.php");
+
+$id    = required_param('id', PARAM_INT);              // course id
+$users = optional_param('userid', array(), PARAM_INT); // array of user id
+
+if (! $course = get_record('course', 'id', $id)) {
+    error("Course ID is incorrect");
+}
+
+$context = get_context_instance(CONTEXT_COURSE, $id);
+require_login($course->id);
+
+// to extend enrolments current user needs to be able to do role assignments
+require_capability('moodle/role:assign', $context);
+
+if ((count($users) > 0) and ($form = data_submitted()) and confirm_sesskey()) {
+
+    foreach ($form->userid as $k => $v) {
+        // find all roles this student have in this course  
+        if ($students = get_records_sql("SELECT ra.id, ra.roleid, ra.timestart, ra.timeend
+                                       FROM {$CFG->prefix}role_assignments ra
+                                       WHERE userid = $v
+                                       AND contextid = $context->id")) {
+            // enrol these users again, with time extension
+            // not that this is not necessarily a student role
+            foreach ($students as $student) {
+                // only extend if the user can make role assignments on this role
+                if (user_can_assign($context, $student->roleid)) {
+                    switch($form->extendperiod) {
+                        case 0: // No change (currently this option is not available in dropdown list, but it might be ...)
+                            break;
+                        case -1: // unlimited
+                            $student->timeend = 0;
+                            break;
+                        default: // extend
+                            switch($form->extendbase) {
+                                case 0: // course start date
+                                    $student->timeend = $course->startdate + $form->extendperiod;
+                                    break;
+                                case 1: // student enrolment start date
+                                    // we check for student enrolment date because Moodle versions before 1.9 did not set this for
+                                    // unlimited enrolment courses, so it might be 0
+                                    if($student->timestart > 0) {
+                                        $student->timeend = $student->timestart + $form->extendperiod;
+                                    }
+                                    break;
+                                case 2: // student enrolment start date
+                                    // enrolment end equals 0 means Unlimited, so adding some time to that will still yield Unlimited
+                                    if($student->timeend > 0) {
+                                        $student->timeend = $student->timeend + $form->extendperiod;
+                                    }
+                                    break;
+                                case 3: // current date
+                                    if(time() > $course->startdate) {
+                                        $student->timeend = time() + $form->extendperiod;
+                                    }
+                                    break;
+                                case 4: // course enrolment start date
+                                    if($course->enrolstartdate > 0) {
+                                        $student->timeend = $course->enrolstartdate + $form->extendperiod;
+                                    }
+                                    break;
+                                case 5: // course enrolment end date
+                                    if($course->enrolenddate > 0) {
+                                        $student->timeend = $course->enrolenddate + $form->extendperiod;
+                                    }
+                                    break;
+                            }
+                    } 
+                    role_assign($student->roleid, $v, 0, $context->id, $student->timestart, $student->timeend, 0);
+                }
+            }
+        }
+    }
+
+    redirect("$CFG->wwwroot/user/index.php?id=$id", get_string('changessaved'));
+}
+
+/// Print headers
+
+if ($course->id != SITEID) {
+    print_header("$course->shortname: ".get_string('extendenrol'), $course->fullname,
+    "<a href=\"../course/view.php?id=$course->id\">$course->shortname</a> -> ".
+    get_string('extendenrol'), "", "", true, "&nbsp;", navmenu($course));
+} else {
+    print_header("$course->shortname: ".get_string('extendenrol'), $course->fullname,
+    get_string('extendenrol'), "", "", true, "&nbsp;", navmenu($course));
+}
+
+$timeformat = get_string('strftimedate');
+$unlimited = get_string('unlimited');
+$periodmenu[-1] = $unlimited;
+for ($i=1; $i<=365; $i++) {
+    $seconds = $i * 86400;
+    $periodmenu[$seconds] = get_string('numdays', '', $i);
+}
+
+$basemenu[0] = get_string('startdate') . ' (' . userdate($course->startdate, $timeformat) . ')';
+$basemenu[1] = get_string('enrolmentstart');
+$basemenu[2] = get_string('enrolmentend');
+if(time() > $course->startdate) {
+    $basemenu[3] = get_string('today') . ' (' . userdate(time(), $timeformat) . ')' ;
+}
+if($course->enrollable == 2) {
+    if($course->enrolstartdate > 0) {
+        $basemenu[4] = get_string('courseenrolstartdate') . ' (' . userdate($course->enrolstartdate, $timeformat) . ')';
+    }
+    if($course->enrolenddate > 0) {
+        $basemenu[5] = get_string('courseenrolenddate') . ' (' . userdate($course->enrolenddate, $timeformat) . ')';
+    }
+}
+
+$title = get_string('groupextendenrol');
+print_heading($title . helpbutton('groupextendenrol', $title, 'moodle', true, false, '', true));
+echo '<form method="post" action="groupextendenrol.php">';
+echo '<input type="hidden" name="id" value="'.$course->id.'" />';
+echo '<input type="hidden" name="sesskey" value="'.$USER->sesskey.'" />';
+$table->head  = array (get_string('fullname'), get_string('enrolmentstart'), get_string('enrolmentend'));
+$table->align = array ('left', 'center', 'center', 'center');
+$table->width = "600";
+$nochange = get_string('nochange');
+$notavailable = get_string('notavailable');
+
+foreach ($_POST as $k => $v) {
+    if (preg_match('/^user(\d+)$/',$k,$m)) {
+        
+        if (!($user = get_record_sql("SELECT * FROM {$CFG->prefix}user u 
+                                    INNER JOIN {$CFG->prefix}role_assignments ra ON u.id=ra.userid 
+                                    WHERE u.id={$m[1]} AND ra.contextid = $context->id"))) {
+            continue;
+        }
+        if ($user->timestart) {
+            $timestart = userdate($user->timestart, $timeformat);
+        } else {
+            $timestart = $notavailable;
+        }
+        if ($user->timeend) {
+            $timeend = userdate($user->timeend, $timeformat);
+        } else {
+            $timeend = $unlimited;
+        }
+        $table->data[] = array(
+        fullname($user, true),
+        $timestart,
+        $timeend . '<input type="hidden" name="userid['.$m[1].']" value="'.$m[1].'" />'
+        );
+    }
+}
+print_table($table);
+echo '<div style="width:100%;text-align:center;"><strong>';
+echo get_string('extendperiod') . ' ';
+choose_from_menu($periodmenu, "extendperiod");
+echo ' ' . get_string('startingfrom') . ' ';
+choose_from_menu($basemenu, "extendbase", "2", "");
+echo '</strong><br />';
+echo '<input type="submit" value="'.get_string('savechanges').'" />';
+echo '</div></form>';
+
+print_footer($course);
+?>
\ No newline at end of file
-- 
2.39.5