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https://github.com/moodle/moodle.git
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557 lines
23 KiB
PHP
557 lines
23 KiB
PHP
<?php
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function scorm_add_time($a, $b) {
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$aes = explode(':',$a);
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$bes = explode(':',$b);
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$aseconds = explode('.',$aes[2]);
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$bseconds = explode('.',$bes[2]);
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$change = 0;
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$acents = 0; //Cents
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if (count($aseconds) > 1) {
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$acents = $aseconds[1];
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}
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$bcents = 0;
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if (count($bseconds) > 1) {
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$bcents = $bseconds[1];
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}
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$cents = $acents + $bcents;
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$change = floor($cents / 100);
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$cents = $cents - ($change * 100);
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if (floor($cents) < 10) {
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$cents = '0'. $cents;
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}
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$secs = $aseconds[0] + $bseconds[0] + $change; //Seconds
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$change = floor($secs / 60);
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$secs = $secs - ($change * 60);
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if (floor($secs) < 10) {
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$secs = '0'. $secs;
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}
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$mins = $aes[1] + $bes[1] + $change; //Minutes
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$change = floor($mins / 60);
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$mins = $mins - ($change * 60);
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if ($mins < 10) {
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$mins = '0' . $mins;
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}
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$hours = $aes[0] + $bes[0] + $change; //Hours
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if ($hours < 10) {
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$hours = '0' . $hours;
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}
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if ($cents != '0') {
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return $hours . ":" . $mins . ":" . $secs . '.' . $cents;
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} else {
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return $hours . ":" . $mins . ":" . $secs;
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}
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}
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/**
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* Take the header row of an AICC definition file
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* and returns sequence of columns and a pointer to
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* the sco identifier column.
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*
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* @param string $row AICC header row
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* @param string $mastername AICC sco identifier column
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* @return mixed
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*/
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function scorm_get_aicc_columns($row,$mastername='system_id') {
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$tok = strtok(strtolower($row),"\",\n\r");
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$result->columns = array();
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$i=0;
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while ($tok) {
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if ($tok !='') {
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$result->columns[] = $tok;
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if ($tok == $mastername) {
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$result->mastercol = $i;
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}
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$i++;
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}
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$tok = strtok("\",\n\r");
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}
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return $result;
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}
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/**
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* Given a colums array return a string containing the regular
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* expression to match the columns in a text row.
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*
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* @param array $column The header columns
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* @param string $remodule The regular expression module for a single column
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* @return string
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*/
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function scorm_forge_cols_regexp($columns,$remodule='(".*")?,') {
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$regexp = '/^';
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foreach ($columns as $column) {
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$regexp .= $remodule;
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}
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$regexp = substr($regexp,0,-1) . '/';
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return $regexp;
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}
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function scorm_parse_aicc($scorm) {
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global $DB;
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if (!isset($scorm->cmid)) {
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$cm = get_coursemodule_from_instance('scorm', $scorm->id);
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$scorm->cmid = $cm->id;
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}
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$context = get_context_instance(CONTEXT_MODULE, $scorm->cmid);
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$fs = get_file_storage();
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$files = $fs->get_area_files($context->id, 'scorm_content', 0, '', false);
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$version = 'AICC';
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$ids = array();
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$courses = array();
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$extaiccfiles = array('crs','des','au','cst','ort','pre','cmp');
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foreach ($files as $file) {
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$filename = $file->get_filename();
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$ext = substr($filename,strrpos($filename,'.'));
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$extension = strtolower(substr($ext,1));
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if (in_array($extension,$extaiccfiles)) {
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$id = strtolower(basename($filename,$ext));
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$ids[$id]->$extension = $file;
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}
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}
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foreach ($ids as $courseid => $id) {
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if (isset($id->crs)) {
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$contents = $id->crs->get_content();
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$rows = explode("\r\n", $contents);
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if (is_array($rows)) {
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foreach ($rows as $row) {
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if (preg_match("/^(.+)=(.+)$/",$row,$matches)) {
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switch (strtolower(trim($matches[1]))) {
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case 'course_id':
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$courses[$courseid]->id = trim($matches[2]);
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break;
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case 'course_title':
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$courses[$courseid]->title = trim($matches[2]);
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break;
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case 'version':
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$courses[$courseid]->version = 'AICC_'.trim($matches[2]);
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break;
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}
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}
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}
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}
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}
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if (isset($id->des)) {
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$contents = $id->des->get_content();
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$rows = explode("\r\n", $contents);
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$columns = scorm_get_aicc_columns($rows[0]);
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$regexp = scorm_forge_cols_regexp($columns->columns);
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for ($i=1;$i<count($rows);$i++) {
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if (preg_match($regexp,$rows[$i],$matches)) {
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for ($j=0;$j<count($columns->columns);$j++) {
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$column = $columns->columns[$j];
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$courses[$courseid]->elements[substr(trim($matches[$columns->mastercol+1]),1,-1)]->$column = substr(trim($matches[$j+1]),1,-1);
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}
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}
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}
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}
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if (isset($id->au)) {
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$contents = $id->au->get_content();
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$rows = explode("\r\n", $contents);
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$columns = scorm_get_aicc_columns($rows[0]);
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$regexp = scorm_forge_cols_regexp($columns->columns);
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for ($i=1;$i<count($rows);$i++) {
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if (preg_match($regexp,$rows[$i],$matches)) {
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for ($j=0;$j<count($columns->columns);$j++) {
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$column = $columns->columns[$j];
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$courses[$courseid]->elements[substr(trim($matches[$columns->mastercol+1]),1,-1)]->$column = substr(trim($matches[$j+1]),1,-1);
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}
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}
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}
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}
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if (isset($id->cst)) {
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$contents = $id->cst->get_content();
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$rows = explode("\r\n", $contents);
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$columns = scorm_get_aicc_columns($rows[0],'block');
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$regexp = scorm_forge_cols_regexp($columns->columns,'(.+)?,');
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for ($i=1;$i<count($rows);$i++) {
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if (preg_match($regexp,$rows[$i],$matches)) {
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for ($j=0;$j<count($columns->columns);$j++) {
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if ($j != $columns->mastercol) {
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$courses[$courseid]->elements[substr(trim($matches[$j+1]),1,-1)]->parent = substr(trim($matches[$columns->mastercol+1]),1,-1);
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}
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}
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}
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}
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}
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if (isset($id->ort)) {
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$contents = $id->ort->get_content();
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$rows = explode("\r\n", $contents);
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$columns = scorm_get_aicc_columns($rows[0],'course_element');
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$regexp = scorm_forge_cols_regexp($columns->columns,'(.+)?,');
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for ($i=1;$i<count($rows);$i++) {
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if (preg_match($regexp,$rows[$i],$matches)) {
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for ($j=0;$j<count($matches)-1;$j++) {
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if ($j != $columns->mastercol) {
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$courses[$courseid]->elements[substr(trim($matches[$j+1]),1,-1)]->parent = substr(trim($matches[$columns->mastercol+1]),1,-1);
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}
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}
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}
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}
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}
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if (isset($id->pre)) {
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$contents = $id->pre->get_content();
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$rows = explode("\r\n", $contents);
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$columns = scorm_get_aicc_columns($rows[0],'structure_element');
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$regexp = scorm_forge_cols_regexp($columns->columns,'(.+),');
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for ($i=1;$i<count($rows);$i++) {
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if (preg_match($regexp,$rows[$i],$matches)) {
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$courses[$courseid]->elements[$columns->mastercol+1]->prerequisites = substr(trim($matches[1-$columns->mastercol+1]),1,-1);
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}
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}
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}
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if (isset($id->cmp)) {
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$contents = $id->cmp->get_content();
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$rows = explode("\r\n", $contents);
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}
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}
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//print_r($courses);
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$oldscoes = $DB->get_records('scorm_scoes', array('scorm'=>$scorm->id));
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$launch = 0;
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if (isset($courses)) {
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foreach ($courses as $course) {
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$sco = new object();
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$sco->identifier = $course->id;
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$sco->scorm = $scorm->id;
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$sco->organization = '';
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$sco->title = $course->title;
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$sco->parent = '/';
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$sco->launch = '';
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$sco->scormtype = '';
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//print_r($sco);
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if ($ss = $DB->get_record('scorm_scoes', array('scorm'=>$scorm->id,'identifier'=>$sco->identifier))) {
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$id = $ss->id;
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$DB->update_record('scorm_scoes',$sco);
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unset($oldscoes[$id]);
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} else {
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$id = $DB->insert_record('scorm_scoes',$sco);
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}
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if ($launch == 0) {
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$launch = $id;
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}
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if (isset($course->elements)) {
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foreach($course->elements as $element) {
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unset($sco);
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$sco->identifier = $element->system_id;
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$sco->scorm = $scorm->id;
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$sco->organization = $course->id;
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$sco->title = $element->title;
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if (!isset($element->parent) || strtolower($element->parent) == 'root') {
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$sco->parent = '/';
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} else {
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$sco->parent = $element->parent;
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}
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if (isset($element->file_name)) {
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$sco->launch = $element->file_name;
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$sco->scormtype = 'sco';
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$sco->previous = 0;
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$sco->next = 0;
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$id = null;
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if ($oldscoid = scorm_array_search('identifier',$sco->identifier,$oldscoes)) {
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$sco->id = $oldscoid;
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if ($DB->update_record('scorm_scoes',$sco)) {
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$id = $oldscoid;
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}
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$DB->delete_records('scorm_scoes_data', array('scoid'=>$oldscoid));
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unset($oldscoes[$oldscoid]);
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} else {
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$id = $DB->insert_record('scorm_scoes',$sco);
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}
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if (!empty($id)) {
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unset($scodata);
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$scodata->scoid = $id;
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if (isset($element->web_launch)) {
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$scodata->name = 'parameters';
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$scodata->value = $element->web_launch;
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$dataid = $DB->insert_record('scorm_scoes_data',$scodata);
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}
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if (isset($element->prerequisites)) {
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$scodata->name = 'prerequisites';
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$scodata->value = $element->prerequisites;
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$dataid = $DB->insert_record('scorm_scoes_data',$scodata);
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}
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if (isset($element->max_time_allowed)) {
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$scodata->name = 'max_time_allowed';
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$scodata->value = $element->max_time_allowed;
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$dataid = $DB->insert_record('scorm_scoes_data',$scodata);
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}
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if (isset($element->time_limit_action)) {
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$scodata->name = 'time_limit_action';
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$scodata->value = $element->time_limit_action;
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$dataid = $DB->insert_record('scorm_scoes_data',$scodata);
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}
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if (isset($element->mastery_score)) {
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$scodata->name = 'mastery_score';
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$scodata->value = $element->mastery_score;
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$dataid = $DB->insert_record('scorm_scoes_data',$scodata);
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}
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if (isset($element->core_vendor)) {
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$scodata->name = 'datafromlms';
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$scodata->value = preg_replace('/<cr>/i', "\r\n", $element->core_vendor);
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$dataid = $DB->insert_record('scorm_scoes_data',$scodata);
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}
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}
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if ($launch==0) {
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$launch = $id;
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}
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}
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}
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}
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}
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}
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if (!empty($oldscoes)) {
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foreach($oldscoes as $oldsco) {
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$DB->delete_records('scorm_scoes', array('id'=>$oldsco->id));
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$DB->delete_records('scorm_scoes_track', array('scoid'=>$oldsco->id));
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}
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}
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$scorm->version = 'AICC';
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$scorm->launch = $launch;
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return true;
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}
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function scorm_get_toc($user,$scorm,$liststyle,$currentorg='',$scoid='',$mode='normal',$attempt='',$play=false) {
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global $CFG, $DB, $PAGE, $OUTPUT;
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$strexpand = get_string('expcoll','scorm');
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$modestr = '';
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if ($mode == 'browse') {
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$modestr = '&mode='.$mode;
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}
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$result = new stdClass();
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$result->toc = "<ul id='s0' class='$liststyle'>\n";
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$tocmenus = array();
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$result->prerequisites = true;
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$incomplete = false;
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//
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// Get the current organization infos
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//
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if (!empty($currentorg)) {
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if (($organizationtitle = $DB->get_field('scorm_scoes','title', array('scorm'=>$scorm->id,'identifier'=>$currentorg))) != '') {
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$result->toc .= "\t<li>$organizationtitle</li>\n";
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$tocmenus[] = $organizationtitle;
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}
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}
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//
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// If not specified retrieve the last attempt number
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//
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if (empty($attempt)) {
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$attempt = scorm_get_last_attempt($scorm->id, $user->id);
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}
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$result->attemptleft = $scorm->maxattempt - $attempt;
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if ($scoes = scorm_get_scoes($scorm->id, $currentorg)){
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//
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// Retrieve user tracking data for each learning object
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//
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$usertracks = array();
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foreach ($scoes as $sco) {
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if (!empty($sco->launch)) {
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if (empty($scoid)) {
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$scoid = $sco->id;
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}
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if ($usertrack = scorm_get_tracks($sco->id,$user->id,$attempt)) {
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if ($usertrack->status == '') {
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$usertrack->status = 'notattempted';
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}
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$usertracks[$sco->identifier] = $usertrack;
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}
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}
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}
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$level=0;
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$sublist=1;
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$previd = 0;
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$nextid = 0;
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$findnext = false;
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$parents[$level]='/';
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foreach ($scoes as $pos => $sco) {
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$isvisible = false;
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$sco->title = $sco->title;
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if (!isset($sco->isvisible) || (isset($sco->isvisible) && ($sco->isvisible == 'true'))) {
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$isvisible = true;
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}
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if ($parents[$level]!=$sco->parent) {
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if ($newlevel = array_search($sco->parent,$parents)) {
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for ($i=0; $i<($level-$newlevel); $i++) {
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$result->toc .= "\t\t</ul></li>\n";
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}
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$level = $newlevel;
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} else {
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$i = $level;
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$closelist = '';
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while (($i > 0) && ($parents[$level] != $sco->parent)) {
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$closelist .= "\t\t</ul></li>\n";
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$i--;
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}
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if (($i == 0) && ($sco->parent != $currentorg)) {
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$style = '';
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if (isset($_COOKIE['hide:SCORMitem'.$sco->id])) {
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$style = ' style="display: none;"';
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}
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$result->toc .= "\t\t<li><ul id='s$sublist' class='$liststyle'$style>\n";
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$level++;
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} else {
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$result->toc .= $closelist;
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$level = $i;
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}
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$parents[$level]=$sco->parent;
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}
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}
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if ($isvisible) {
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$result->toc .= "\t\t<li>";
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}
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if (isset($scoes[$pos+1])) {
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$nextsco = $scoes[$pos+1];
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} else {
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$nextsco = false;
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}
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$nextisvisible = false;
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if (!isset($nextsco->isvisible) || (isset($nextsco->isvisible) && ($nextsco->isvisible == 'true'))) {
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$nextisvisible = true;
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}
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if ($nextisvisible && ($nextsco !== false) && ($sco->parent != $nextsco->parent) && (($level==0) || (($level>0) && ($nextsco->parent == $sco->identifier)))) {
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$sublist++;
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$icon = 'minus';
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if (isset($_COOKIE['hide:SCORMitem'.$nextsco->id])) {
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$icon = 'plus';
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}
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$result->toc .= '<a href="javascript:expandCollide(\'img'.$sublist.'\',\'s'.$sublist.'\','.$nextsco->id.');"><img id="img'.$sublist.'" src="'.$OUTPUT->pix_url('pix/' . $icon, 'scorm').'" alt="'.$strexpand.'" title="'.$strexpand.'"/></a>';
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} else if ($isvisible) {
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$result->toc .= '<img src="'.$OUTPUT->pix_url('pix/spacer', 'scorm').'" alt="" />';
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}
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if (empty($sco->title)) {
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$sco->title = $sco->identifier;
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}
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if (!empty($sco->launch)) {
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if ($isvisible) {
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$startbold = '';
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$endbold = '';
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$score = '';
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if (empty($scoid) && ($mode != 'normal')) {
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$scoid = $sco->id;
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}
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if (isset($usertracks[$sco->identifier])) {
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$usertrack = $usertracks[$sco->identifier];
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$strstatus = get_string($usertrack->status,'scorm');
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if ($sco->scormtype == 'sco') {
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$statusicon = '<img src="'.$OUTPUT->pix_url('pix/' . $usertrack->status, 'scorm').'" alt="'.$strstatus.'" title="'.$strstatus.'" />';
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} else {
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$statusicon = '<img src="'.$OUTPUT->pix_url('pix/assetc', 'scorm').'" alt="'.get_string('assetlaunched','scorm').'" title="'.get_string('assetlaunched','scorm').'" />';
|
|
}
|
|
|
|
if (($usertrack->status == 'notattempted') || ($usertrack->status == 'incomplete') || ($usertrack->status == 'browsed')) {
|
|
$incomplete = true;
|
|
if ($play && empty($scoid)) {
|
|
$scoid = $sco->id;
|
|
}
|
|
}
|
|
if ($usertrack->score_raw != '') {
|
|
$score = '('.get_string('score','scorm').': '.$usertrack->score_raw.')';
|
|
}
|
|
$strsuspended = get_string('suspended','scorm');
|
|
if (isset($usertrack->{'cmi.core.exit'}) && ($usertrack->{'cmi.core.exit'} == 'suspend')) {
|
|
$statusicon = '<img src="'.$OUTPUT->pix_url('pix/suspend', 'scorm').'" alt="'.$strstatus.' - '.$strsuspended.'" title="'.$strstatus.' - '.$strsuspended.'" />';
|
|
}
|
|
} else {
|
|
if ($play && empty($scoid)) {
|
|
$scoid = $sco->id;
|
|
}
|
|
$incomplete = true;
|
|
if ($sco->scormtype == 'sco') {
|
|
$statusicon = '<img src="'.$OUTPUT->pix_url('pix/notattempted', 'scorm').'" alt="'.get_string('notattempted','scorm').'" title="'.get_string('notattempted','scorm').'" />';
|
|
} else {
|
|
$statusicon = '<img src="'.$OUTPUT->pix_url('pix/asset', 'scorm').'" alt="'.get_string('asset','scorm').'" title="'.get_string('asset','scorm').'" />';
|
|
}
|
|
}
|
|
if ($sco->id == $scoid) {
|
|
$startbold = '<b>';
|
|
$endbold = '</b>';
|
|
$findnext = true;
|
|
$shownext = isset($sco->next) ? $sco->next : 0;
|
|
$showprev = isset($sco->previous) ? $sco->previous : 0;
|
|
}
|
|
|
|
if (($nextid == 0) && (scorm_count_launchable($scorm->id,$currentorg) > 1) && ($nextsco!==false) && (!$findnext)) {
|
|
if (!empty($sco->launch)) {
|
|
$previd = $sco->id;
|
|
}
|
|
}
|
|
if (empty($sco->prerequisites) || scorm_eval_prerequisites($sco->prerequisites,$usertracks)) {
|
|
if ($sco->id == $scoid) {
|
|
$result->prerequisites = true;
|
|
}
|
|
$url = $CFG->wwwroot.'/mod/scorm/player.php?a='.$scorm->id.'&currentorg='.$currentorg.$modestr.'&scoid='.$sco->id;
|
|
$result->toc .= $statusicon.' '.$startbold.'<a href="'.$url.'">'.format_string($sco->title).'</a>'.$score.$endbold."</li>\n";
|
|
$tocmenus[$sco->id] = scorm_repeater('−',$level) . '>' . format_string($sco->title);
|
|
} else {
|
|
if ($sco->id == $scoid) {
|
|
$result->prerequisites = false;
|
|
}
|
|
$result->toc .= $statusicon.' '.format_string($sco->title)."</li>\n";
|
|
}
|
|
}
|
|
} else {
|
|
$result->toc .= ' '.format_string($sco->title)."</li>\n";
|
|
}
|
|
if (($nextsco !== false) && ($nextid == 0) && ($findnext)) {
|
|
if (!empty($nextsco->launch)) {
|
|
$nextid = $nextsco->id;
|
|
}
|
|
}
|
|
}
|
|
for ($i=0;$i<$level;$i++) {
|
|
$result->toc .= "\t\t</ul></li>\n";
|
|
}
|
|
|
|
if ($play) {
|
|
$sco = scorm_get_sco($scoid);
|
|
$sco->previd = $previd;
|
|
$sco->nextid = $nextid;
|
|
$result->sco = $sco;
|
|
$result->incomplete = $incomplete;
|
|
} else {
|
|
$result->incomplete = $incomplete;
|
|
}
|
|
}
|
|
$result->toc .= "\t</ul>\n";
|
|
if ($scorm->hidetoc == 0) {
|
|
$result->toc .= html_writer::script(js_writer::set_variable('scormdata', array(
|
|
'plusicon' => $OUTPUT->pix_url('pix/plus', 'scorm'),
|
|
'minusicon' => $OUTPUT->pix_url('pix/minus', 'scorm'))));
|
|
$result->toc .= html_writer::script('', $CFG->wwwroot.'/lib/cookies.js');
|
|
$result->toc .= html_writer::script('', $CFG->wwwroot.'/mod/scorm/datamodels/scorm_datamodels.js');
|
|
}
|
|
|
|
$url = $CFG->wwwroot.'/mod/scorm/player.php?a='.$scorm->id.'¤torg='.$currentorg.$modestr;
|
|
$select = html_select::make_popup_form($url, 'scoid', $tocmenus, "tocmenu", $sco->id);
|
|
$select->nothinglabel = false;
|
|
$result->tocmenu = $OUTPUT->select($select);
|
|
|
|
return $result;
|
|
}
|
|
|
|
|