--- /dev/null
+<?PHP // $Id$
+////////////////////////////////////////////////////////////////////
+/// Class for importing course test manager questions. //
+/// //
+/// Russell Jungwirth //
+////////////////////////////////////////////////////////////////////
+// Included by ../import.php
+
+
+class quiz_file_format {
+ function importpreprocess($category) {
+ $this->category = $category; // Important
+ return true;
+ }
+ function importprocess($filename) {
+ global $CFG,$QUIZ_FILE_FORMAT,$strimportquestions,$form,$question_category,$category,$course,$THEME,
+ $hostname, $mdapath, $mdbpath;
+ if ((PHP_OS == "Linux") and isset($hostname)) {
+ $hostname = trim($hostname);
+ // test the ODBC socket server connection
+ // if failure, unset hostname and set hostname_access_error
+ $question_categories = $this->getquestioncategories($mdbpath, $mdapath, $hostname);
+ if (!$question_categories) {
+ $hostname_access_error = $hostname . " ";
+ unset($hostname);
+ } else {
+ $hostname_access_error = 0;
+ }
+ }
+
+ if ((PHP_OS == "Linux") and !isset($hostname)) {
+ // copy the file to a semi-permanent location
+ if (! $basedir = make_upload_directory("$course->id")) {
+ error("The site administrator needs to fix the file permissions for the data directory");
+ }
+ if (!isset($hostname_access_error)) {
+ $bname=basename($filename);
+ $cleanfilename = clean_filename($bname);
+ if ($cleanfilename) {
+ $newfile = "$basedir/$cleanfilename";
+ if (move_uploaded_file($filename, $newfile)) {
+ chmod($newfile, 0666);
+ } else {
+ notify(get_string("uploadproblem", "", $filename));
+ }
+ }
+ $filename = $newfile;
+ }
+ print_heading_with_help($strimportquestions, "import", "quiz");
+ print_simple_box_start("center", "", "$THEME->cellheading");
+ if ($hostname_access_error) { notify("couldn't connect to ODBC Socket Server on " . $hostname_access_error); }
+ echo "<form method=\"post\" action=\"import.php\">";
+ echo "<table cellpadding=5>";
+
+ echo "<tr><td align=right>";
+ echo "What is the hostname or IP address of the ODBC Socket Server:</td><td>";
+ echo " <input name=\"hostname\" type=\"text\" size=\"50\" value=\"".stripslashes($hostname_access_error)."\">";
+ echo " <input name=\"filename\" type=\"hidden\" value=\"".$filename."\">";
+ echo " <input name=\"category\" type=\"hidden\" value=\"".$category->id."\">";
+ echo " <input name=\"format\" type=\"hidden\" value=\"".$form->format."\">";
+ echo "</td><td> </td></tr>";
+ echo "<tr><td align=right>";
+ echo "What is the location of the database (.mdb file) on the Socket Server:</td><td>";
+ echo " <input name=\"mdbpath\" type=\"text\" size=\"50\" value=\"".stripslashes($mdbpath)."\">";
+ echo "</td><td> </td></tr>";
+ echo "<tr><td align=right>";
+ echo "What is the location of the system database (System.mda file) on the Socket Server:</td><td>";
+ echo " <input name=\"mdapath\" type=\"text\" size=\"50\" value=\"".stripslashes($mdapath)."\">";
+ echo "</td><td> </td></tr>";
+ echo "<tr><td> </td><td>";
+ echo " <input type=submit name=save value=\"Connect to Server\">";
+ echo "</td></tr>";
+ echo "</table>";
+ echo "</form>";
+ print_simple_box_end();
+ print_footer($course);
+ exit;
+ }
+
+ // we get here if running windows or after connect to ODBC socket server on linux
+ //
+ // this generates the page to choose categories of questions to import
+ //
+ if (!isset($question_category)) {
+
+ if (PHP_OS == "WINNT") {
+ // copy the file to a semi-permanent location
+ if (! $basedir = make_upload_directory("$course->id")) {
+ error("The site administrator needs to fix the file permissions for the data directory");
+ }
+ $bname=basename($filename);
+ $cleanfilename = clean_filename($bname);
+ if ($cleanfilename) {
+ $newfile = "$basedir/$cleanfilename";
+ if (move_uploaded_file($filename, $newfile)) {
+ chmod($newfile, 0666);
+ } else {
+ notify(get_string("uploadproblem", "", $filename));
+ }
+ }
+ $filename = $newfile;
+ }
+ // end of file copy
+
+ // don't have to do this on linux, since it's alreay been done in the test above
+ if (PHP_OS == "WINNT") { $question_categories = $this->getquestioncategories($filename); }
+ // print the intermediary form
+ if (!$categories = quiz_get_category_menu($course->id, true)) {
+ error("No categories!");
+ }
+ print_heading_with_help($strimportquestions, "import", "quiz");
+ print_simple_box_start("center", "", "$THEME->cellheading");
+ echo "<form method=\"post\" action=\"import.php\">";
+ echo "<table cellpadding=5>";
+ echo "<tr><td align=right>";
+ echo "Choose a category of questions to import:</td><td>";
+ asort($question_categories);
+ choose_from_menu($question_categories, "question_category","All Categories","All Categories", "", "allcategories");
+ echo " <input name=\"filename\" type=\"hidden\" value=\"".$filename."\">";
+ echo " <input name=\"category\" type=\"hidden\" value=\"".$category->id."\">";
+ echo " <input name=\"format\" type=\"hidden\" value=\"".$form->format."\">";
+ if (PHP_OS == "Linux") {
+ echo " <input name=\"hostname\" type=\"hidden\" value=\"".stripslashes(trim($hostname))."\">";
+ echo " <input name=\"mdbpath\" type=\"hidden\" value=\"".stripslashes($mdbpath)."\">";
+ echo " <input name=\"mdapath\" type=\"hidden\" value=\"".stripslashes($mdapath)."\">";
+ }
+ echo "</td><td> </td>";
+ echo "</tr><tr><td> </td><td>";
+ echo " <input type=submit name=save value=\"Import Questions\">";
+ echo "</td></tr>";
+ echo "</table>";
+ echo "</form>";
+ print_simple_box_end();
+ print_footer($course);
+ exit;
+ }
+ //
+ // this is the main import section
+ //
+ notify("Importing questions");
+ if (PHP_OS == "Linux") {
+ $hostname = trim($hostname);
+ $records = $this->getquestions($mdbpath,$question_category,$mdapath, $hostname);
+ } else {
+ $records = $this->getquestions($filename,$question_category);
+ }
+ foreach ($records as $qrec)
+ {
+ $question = NULL;
+ $question->image = ""; // No images with this format
+ if ($qrec[9] != "") {
+ $question->image = $qrec[9];
+ }
+ $question->defaultgrade = 1;
+ // 0 Selected
+ // 1 PracticeTestOK?
+ // 2 QuestionText
+ // 3 QuestionType
+ // 4 Option1Text
+ // 5 Option2Text
+ // 6 Option3Text
+ // 7 Option4Text
+ // 8 CorrectAnswer
+ // 9 Graphic
+ // 10 Module
+ // 11 ChapterNumber
+ // 12 PageNumber
+ $ref = "Answer can be found in chapter ". $qrec[11] . ", page " . $qrec[12] . ".";
+ switch ($qrec[3]) {
+ case 1:
+ $question->qtype = MULTICHOICE; // MULTICHOICE, SHORTANSWER, TRUEFALSE
+ // echo "<pre>";echo htmlspecialchars($qrec[2]); echo "</pre>";
+ $question->questiontext = addslashes(trim($qrec[2]));
+ // echo "<pre>";echo $question->questiontext; echo "</pre>";
+ $question->name = preg_replace("/<br>/", "", $question->questiontext);
+ $question->single = 1; // Only one answer is allowed -- used for multiple choicers
+ $fractionset = 0;
+ for ($i=4;$i<=7;$i++) {
+ if ($qrec[$i] != "") {
+ $question->answer[$i-3]=addslashes($qrec[$i]);
+ if ($qrec[8] == $i-3) { // if this is the index of CorrectAnswer
+ $question->fraction[$i-3] = 1;
+ $fractionset = 1;
+ } else {
+ $question->fraction[$i-3] = 0;
+ }
+ $question->feedback[$i-3] = (($qrec[8] == $i-3)?"Correct. ":"Incorrect. ") . $ref;
+ }
+ }
+ if ($fractionset == 0) { $question->fraction[1] = 1; }
+ break;
+ case 2: // TRUE FALSE
+ $question->qtype = TRUEFALSE;
+ $question->questiontext = addslashes(trim($qrec[2]));
+ $question->name = preg_replace("/<br>/", "", $question->questiontext);
+ // for TF, $question->answer should be 1 for true, 0 for false
+ if ($qrec[8] == "T") { $question->answer =1; echo "answer T"; } else { $question->answer = 0; }
+ // for TF, use $question->feedbacktrue and feedbackfalse
+ $question->feedbacktrue = (($qrec[8] =="T")?"Correct. ":"Incorrect. ") . $ref;
+ $question->feedbackfalse = (($qrec[8] =="F")?"Correct. ":"Incorrect. ") . $ref;
+ break;
+ case 3:
+ $question->qtype = SHORTANSWER;
+ $question->questiontext = addslashes(trim($qrec[2]));
+ // echo "<pre>";echo $question->questiontext; echo "</pre>";
+ $question->name = preg_replace("/<br>/", "", $question->questiontext);
+ $question->usecase=0; // Ignore case -- for SHORT ANSWER questions
+ $answers = explode("~", $qrec[8]);
+ $question->answer[1]=" ";
+ $question->fraction[1]=1;
+ for ($i=0;$i<count($answers);$i++) {
+ $question->answer[$i] = addslashes(trim($answers[$i]));
+ $question->feedback[$i] = $ref;
+ $question->fraction[$i] = 1; // 1 for 100%, 0 for none or somewhere in between
+ }
+ break;
+ case 4:
+ $question = 0;
+ notify("Cannot use essay questions - skipping question ". $qrec[2] . " " . $ref);
+ break;
+ default:
+ $question = 0;
+ notify("Misformatted Record. Question Skipped.");
+ break;
+ }
+ if ($question) { $questions[] = $question; }
+ }
+ $count = 0;
+ // process all the questions
+ if (PHP_OS == "WINNT") {
+ $filename = str_replace("\\\\","\\",$filename);
+ $filename = str_replace("/","\\",$filename);
+ }
+ foreach ($questions as $question) { // Process and store each question
+ $count++;
+ echo "<hr><p><b>$count</b>. ".stripslashes($question->questiontext)."</p>";
+ $question->category = $this->category->id;
+ $question->stamp = make_unique_id_code(); // Set the unique code (not to be changed)
+ $question->version = 1; // Original version of this question
+ if (!$question->id = insert_record("quiz_questions", $question)) {
+ error("Could not insert new question!");
+ }
+ $this->questionids[] = $question->id;
+ // Now to save all the answers and type-specific options
+ $result = quiz_save_question_options($question);
+ if (!empty($result->error)) {
+ notify($result->error);
+ $this->deletedatabase($filename);
+ return false;
+ }
+ if (!empty($result->notice)) {
+ notify($result->notice);
+ $this->deletedatabase($filename);
+ return true;
+ }
+ }
+ $this->deletedatabase($filename);
+ return true;
+ }
+
+ function importpostprocess() {
+ return true;
+ }
+
+ function deletedatabase($filename) {
+ if (! $this->fulldelete($filename)) {
+ echo "<BR>Error: Could not delete: $filename";
+ return false;
+ }
+ return true;
+ }
+
+ function getquestions($filename, $category, $mdapath="", $hostname="") {
+ if (($category == "allcategories") or ($category == "")) {
+ $sql = "SELECT * FROM TBQuestions";
+ } else {
+ $sql = "SELECT * FROM TBQuestions where module = '".$category."'";
+ }
+ if (PHP_OS == "WINNT") {
+ $ldb =& $this->connect_win($filename);
+ $qset = $ldb->Execute("$sql");
+ if ( $qset->RecordCount() > 0 ) {
+ $records = $qset->GetAssoc(true);
+ } else {
+ $this->err("There were no records in the database.",$dsn);
+ $ldb->Close();
+ return false;
+ }
+ $ldb->Close();
+ } else { // if PHP_OS == WINNT
+ // we have a linux installation
+ $result = $this->query_linux($sql,$filename, $mdapath,$hostname);
+ if ( count($result) > 0 ) {
+ // get rid of the ID field in the first column.
+ for($i=0;$i<count($result);$i++) {
+ foreach (array_keys($result[$i]) as $j) {
+ $records[$i][$j-1] = $result[$i][$j];
+ }
+ }
+ } else {
+ $this->err("There were no records in the database.",$dsn);
+ $ldb->Close();
+ return false;
+ }
+ // xml test and connect
+ } // PHP_OS TEST
+ return $records;
+ }
+
+ function getquestioncategories($filename, $mdapath="", $hostname="") {
+ global $CFG, $result;
+ $sql = "SELECT Distinct module FROM TBQuestions";
+ if (PHP_OS == "WINNT") {
+ $ldb =& $this->connect_win($filename);
+ $qset = $ldb->Execute("$sql");
+ if ( $qset->RecordCount() > 0 ) {
+ $records = $qset->GetArray(true);
+ foreach ($records as $record) {
+ $categories[$record[0]] = $record[0];
+ }
+ } else { // if recordcount
+ $this->err("There were no records in the database.",$dsn);
+ $ldb->Close();
+ return false;
+ }
+ $ldb->Close();
+ } else { // if PHP_OS == WINNT
+ // we have a linux installation
+ $result = $this->query_linux($sql, $filename, $mdapath, $hostname);
+ for($i=0;$i<count($result);$i++) {
+ $categories[$result[$i][0]] = $result[$i][0];
+ }
+ } // PHP_OS TEST
+ return $categories;
+ }
+
+ function query_linux($sql, $mdbpath, $mdapath, $hostname) {
+ global $result;
+ include_once("$CFG->libdir/odbc.php");
+ // set up socket server object to connect to remote host
+ $oTest = new ODBCSocketServer;
+ //Set the Hostname, port, and connection string
+ $oTest->sHostName = $hostname;
+ $oTest->nPort = 9628;
+ // $oTest->sConnectionString="DRIVER=Microsoft Access Driver (*.mdb);SystemDB=C:\CTM\System.mda;DBQ=C:\CTM\of2K3\ctm.mdb;UID=Assess;PWD=VBMango;";
+ $oTest->sConnectionString="DRIVER=Microsoft Access Driver (*.mdb);SystemDB=".
+ $mdapath.";DBQ=".$mdbpath.";UID=Assess;PWD=VBMango;";
+ // send and receive XML communication
+ $qResult = $oTest->ExecSQL($sql);
+ // set up XML parser to read the results
+ $xml_parser = xml_parser_create("US-ASCII");
+ xml_set_element_handler($xml_parser, "quiz_xmlstart", "quiz_xmlend");
+ xml_set_character_data_handler($xml_parser, "quiz_xmldata");
+ // parse the XML and get back the result set array
+ if (!xml_parse($xml_parser, $qResult)) {
+ $this->err("XML error: ".xml_error_string(xml_get_error_code($xml_parser))
+ ." at line ".xml_get_current_line_number($xml_parser),$oTest->sConnectionString);
+ return false;
+ } else {
+ // echo("Successful XML parse. ");
+ // prepare the array for use in the pull-down
+ /* echo "<br>count of rows is ". count ($result);
+ echo "<pre>\n";
+ $qResult = HtmlSpecialChars($qResult);
+ echo $qResult;
+ echo "\n</pre>";
+ */
+ xml_parser_free($xml_parser);
+ // $sResult = HtmlSpecialChars($qResult);
+ //echo("<pre>");
+ // echo($sResult);
+ // echo("</pre>");
+
+ return $result;
+ }
+ }
+
+ function connect_win($filename) {
+ global $CFG, $systemdb;
+ // first, verify the location of System.mda
+ if (!isset($systemdb)) {
+ $systemdb=$this->findfile("System.mda");
+ }
+ if (! $systemdb) {
+ $this->err("The system database System.mda cannot be found. Check that you've uploaded it to the course.",$dsn);
+ die;
+ }
+
+ $ldb = &ADONewConnection('access');
+ $dsn="DRIVER=Microsoft Access Driver (*.mdb);SystemDB=".$systemdb.";DBQ=".$filename.";UID=Assess;PWD=VBMango;";
+ $dbconnected = $ldb->Connect($dsn);
+ if (! $dbconnected) {
+ $this->err("Moodle could not connect to the database.",$dsn);
+ die;
+ }
+ return $ldb;
+ }
+
+ function err($message, $dsn) {
+ echo "<font color=\"#990000\">";
+ echo "<p>Error: $message</p>";
+ echo "<p>ODBC File DSN: $dsn<br />";
+ echo "</font>";
+ }
+
+ function fulldelete($location) {
+ if (is_dir($location)) {
+ $currdir = opendir($location);
+ while ($file = readdir($currdir)) {
+ if ($file <> ".." && $file <> ".") {
+ $fullfile = $location."/".$file;
+ if (is_dir($fullfile)) {
+ if (!fulldelete($fullfile)) {
+ return false;
+ }
+ } else {
+ if (!unlink($fullfile)) {
+ return false;
+ }
+ }
+ }
+ }
+ closedir($currdir);
+ if (! rmdir($location)) {
+ return false;
+ }
+
+ } else {
+ if (!unlink($location)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+
+ function findfile($filename) {
+ global $CFG;
+ $dirs = $this->getcoursedirs();
+ $dirs[] = $CFG->dirroot."\mod\quiz\format";
+ foreach ($dirs as $dir) {
+ $file = $dir . "\System.mda";
+ // look for System.mda
+ if (is_file($file)) return $file;
+ }
+ return false;
+ }
+
+ function getcoursedirs() {
+ global $CFG;
+ // for every course in the system, find the root of the data directory
+ $courses = get_records_sql("select distinct id,fullname from ".$CFG->prefix."course");
+ $dirs = array();
+ if ($courses) {
+ foreach ($courses as $course) {
+ $dir = $CFG->dataroot . "/" . $course->id;
+ if (is_dir($dir)) { $dirs[] = $dir; }
+ }
+ }
+ return $dirs;
+ }
+
+} // END OF CLASS
+
+//Handler for starting elements
+function quiz_xmlstart($parser, $name, $attribs) {
+ global $result,$row, $col, $incolumn;
+ $name = strtolower($name);
+ switch ($name) {
+ case "row":
+ $col=0;break;
+ case "column":
+ $incolumn = 1;break;
+ case "error":
+ break;
+ case "result":
+ $row = 0; break;
+ } // switch
+}
+
+//handler for the end of elements
+function quiz_xmlend($parser, $name) {
+ global $result, $row, $col, $incolumn;
+ $name = strtolower($name);
+ switch ($name) {
+ case "row":
+ $row++;break;
+ case "column":
+ $incolumn = 0;
+ $col++;
+ break;
+ case "error":
+ break;
+ case "result":
+ break;
+ } // switch
+} // function
+
+//handler for character data
+function quiz_xmldata($parser, $data) {
+ global $result, $row, $col, $incolumn;
+ if ($incolumn) { $result[$row][$col] = $result[$row][$col] . $data;
+ }
+}
+
+?>
projects / moodle.git / commitdiff