Exemplo n.º 1
0
 function replace_file_links($question, $fromcourseid, $tocourseid, $url, $destination)
 {
     global $CFG;
     $updateqrec = false;
     /// Question image
     if (!empty($question->image)) {
         //support for older questions where we have a complete url in image field
         if (substr(strtolower($question->image), 0, 7) == 'http://') {
             $questionimage = preg_replace('!^' . question_file_links_base_url($fromcourseid) . preg_quote($url, '!') . '$!i', $destination, $question->image, 1);
         } else {
             $questionimage = preg_replace('!^' . preg_quote($url, '!') . '$!i', $destination, $question->image, 1);
         }
         if ($questionimage != $question->image) {
             $question->image = $questionimage;
             $updateqrec = true;
         }
     }
     /// Questiontext and general feedback.
     $question->questiontext = question_replace_file_links_in_html($question->questiontext, $fromcourseid, $tocourseid, $url, $destination, $updateqrec);
     $question->generalfeedback = question_replace_file_links_in_html($question->generalfeedback, $fromcourseid, $tocourseid, $url, $destination, $updateqrec);
     /// If anything has changed, update it in the database.
     if ($updateqrec) {
         if (!update_record('question', addslashes_recursive($question))) {
             error('Couldn\'t update question ' . $question->name);
         }
     }
     /// Answers, if this question uses them.
     if (isset($question->options->answers)) {
         //answers that do not need updating have been unset
         foreach ($question->options->answers as $answer) {
             $answerchanged = false;
             /// URLs in the answers themselves, if appropriate.
             if ($this->has_html_answers()) {
                 $answer->answer = question_replace_file_links_in_html($answer->answer, $fromcourseid, $tocourseid, $url, $destination, $answerchanged);
             }
             /// URLs in the answer feedback.
             $answer->feedback = question_replace_file_links_in_html($answer->feedback, $fromcourseid, $tocourseid, $url, $destination, $answerchanged);
             /// If anything has changed, update it in the database.
             if ($answerchanged) {
                 if (!update_record('question_answers', addslashes_recursive($answer))) {
                     error('Couldn\'t update question (' . $question->name . ') answer ' . $answer->id);
                 }
             }
         }
     }
 }
Exemplo n.º 2
0
function question_replace_file_links_in_html($html, $fromcourseid, $tocourseid, $url, $destination, &$changed)
{
    global $CFG;
    if ($CFG->slasharguments) {
        // Use this method if possible for better caching
        $tourl = "{$CFG->wwwroot}/file.php/{$tocourseid}/{$destination}";
    } else {
        $tourl = "{$CFG->wwwroot}/file.php?file=/{$tocourseid}/{$destination}";
    }
    $fromurl = question_file_links_base_url($fromcourseid) . preg_quote($url, '!');
    $searchfor = array('!(<\\s*(a|img)\\s[^>]*(href|src)\\s*=\\s*")' . $fromurl . '(")!i', '!(<\\s*(a|img)\\s[^>]*(href|src)\\s*=\\s*\')' . $fromurl . '(\')!i');
    $newhtml = preg_replace($searchfor, '\\1' . $tourl . '\\5', $html);
    if ($newhtml != $html) {
        $changed = true;
    }
    return $newhtml;
}
Exemplo n.º 3
0
function question_replace_file_links_in_html($html, $fromcourseid, $tocourseid, $url, $destination, &$changed)
{
    global $CFG;
    require_once $CFG->libdir . '/filelib.php';
    $tourl = get_file_url("{$tocourseid}/{$destination}");
    $fromurl = question_file_links_base_url($fromcourseid) . preg_quote($url, '!');
    $searchfor = array('!(<\\s*(a|img)\\s[^>]*(href|src)\\s*=\\s*")' . $fromurl . '(")!i', '!(<\\s*(a|img)\\s[^>]*(href|src)\\s*=\\s*\')' . $fromurl . '(\')!i');
    $newhtml = preg_replace($searchfor, '\\1' . $tourl . '\\5', $html);
    if ($newhtml != $html) {
        $changed = true;
    }
    return $newhtml;
}
 function replace_file_links($question, $fromcourseid, $tocourseid, $url, $destination)
 {
     global $CFG;
     parent::replace_file_links($question, $fromcourseid, $tocourseid, $url, $destination);
     $optionschanged = false;
     if (!empty($question->options->backgroundmedia->media)) {
         //support for older questions where we have a complete url in image field
         if (substr(strtolower($question->options->backgroundmedia->media), 0, 7) == 'http://') {
             $questionbackground = preg_replace('!^' . question_file_links_base_url($fromcourseid) . preg_quote($url, '!') . '$!i', $destination, $question->options->backgroundmedia->media, 1);
         } else {
             $questionbackground = preg_replace('!^' . preg_quote($url, '!') . '$!i', $destination, $question->options->backgroundmedia->media, 1);
         }
         if ($questionbackground != $question->options->backgroundmedia->media) {
             $question->options->backgroundmedia->media = $questionbackground;
             $optionschanged = true;
         }
     }
     $question->options->feedbackok = question_replace_file_links_in_html($question->options->feedbackok, $fromcourseid, $tocourseid, $url, $destination, $optionschanged);
     $question->options->feedbackmissed = question_replace_file_links_in_html($question->options->feedbackmissed, $fromcourseid, $tocourseid, $url, $destination, $optionschanged);
     if ($optionschanged) {
         if (!update_record('question_dragdrop', addslashes_recursive($question->options))) {
             error('Couldn\'t update \'question_dragdrop\' record ' . $question->options->id);
         }
     }
     $mediachanged = false;
     foreach ($question->options->media as $media) {
         if (!empty($media->media)) {
             if (substr(strtolower($media->media), 0, 7) == 'http://') {
                 $medianame = preg_replace('!^' . question_file_links_base_url($fromcourseid) . preg_quote($url, '!') . '$!i', $destination, $media->media, 1);
             } else {
                 $medianame = preg_replace('!^' . preg_quote($url, '!') . '$!i', $destination, $media->media, 1);
             }
             if ($medianame != $media->media) {
                 $media->media = $medianame;
                 $mediachanged = true;
             }
         }
         $media->questiontext = question_replace_file_links_in_html($media->questiontext, $fromcourseid, $tocourseid, $url, $destination, $mediachanged);
         if ($mediachanged) {
             if (!update_record('question_dragdrop_media', addslashes_recursive($media))) {
                 error('Couldn\'t update \'question_dragdrop_media\' record ' . $media->id);
             }
         }
     }
 }