echo $OUTPUT->heading(format_string($resource->name), 2);
}
+
+/**
+ * Gets details of the file to cache in course cache to be displayed using {@link resource_get_optional_details()}
+ *
+ * @param object $resource Resource table row (only property 'displayoptions' is used here)
+ * @param object $cm Course-module table row
+ * @return string Size and type or empty string if show options are not enabled
+ */
+function resource_get_file_details($resource, $cm) {
+ $options = empty($resource->displayoptions) ? array() : @unserialize($resource->displayoptions);
+ $filedetails = array();
+ if (!empty($options['showsize']) || !empty($options['showtype']) || !empty($options['showdate'])) {
+ $context = context_module::instance($cm->id);
+ $fs = get_file_storage();
+ $files = $fs->get_area_files($context->id, 'mod_resource', 'content', 0, 'sortorder DESC, id ASC', false);
+ // For a typical file resource, the sortorder is 1 for the main file
+ // and 0 for all other files. This sort approach is used just in case
+ // there are situations where the file has a different sort order.
+ $mainfile = $files ? reset($files) : null;
+ if (!empty($options['showsize'])) {
+ $filedetails['size'] = 0;
+ foreach ($files as $file) {
+ // This will also synchronize the file size for external files if needed.
+ $filedetails['size'] += $file->get_filesize();
+ if ($file->get_repository_id()) {
+ // If file is a reference the 'size' attribute can not be cached.
+ $filedetails['isref'] = true;
+ }
+ }
+ }
+ if (!empty($options['showtype'])) {
+ if ($mainfile) {
+ $filedetails['type'] = get_mimetype_description($mainfile);
+ // Only show type if it is not unknown.
+ if ($filedetails['type'] === get_mimetype_description('document/unknown')) {
+ $filedetails['type'] = '';
+ }
+ } else {
+ $filedetails['type'] = '';
+ }
+ }
+ if (!empty($options['showdate'])) {
+ if ($mainfile) {
+ // Modified date may be up to several minutes later than uploaded date just because
+ // teacher did not submit the form promptly. Give teacher up to 5 minutes to do it.
+ if ($mainfile->get_timemodified() > $mainfile->get_timecreated() + 5 * MINSECS) {
+ $filedetails['modifieddate'] = $mainfile->get_timemodified();
+ } else {
+ $filedetails['uploadeddate'] = $mainfile->get_timecreated();
+ }
+ if ($mainfile->get_repository_id()) {
+ // If main file is a reference the 'date' attribute can not be cached.
+ $filedetails['isref'] = true;
+ }
+ } else {
+ $filedetails['uploadeddate'] = '';
+ }
+ }
+ }
+ return $filedetails;
+}
+
/**
* Gets optional details for a resource, depending on resource settings.
*
* Result may include the file size and type if those settings are chosen,
* or blank if none.
*
- * @param object $resource Resource table row
+ * @param object $resource Resource table row (only property 'displayoptions' is used here)
* @param object $cm Course-module table row
* @return string Size and type or empty string if show options are not enabled
*/
$details = '';
- $options = empty($resource->displayoptions) ? array() : unserialize($resource->displayoptions);
+ $options = empty($resource->displayoptions) ? array() : @unserialize($resource->displayoptions);
if (!empty($options['showsize']) || !empty($options['showtype']) || !empty($options['showdate'])) {
- $context = context_module::instance($cm->id);
+ if (!array_key_exists('filedetails', $options)) {
+ $filedetails = resource_get_file_details($resource, $cm);
+ } else {
+ $filedetails = $options['filedetails'];
+ }
$size = '';
$type = '';
$date = '';
$langstring = '';
$infodisplayed = 0;
- $fs = get_file_storage();
- $files = $fs->get_area_files($context->id, 'mod_resource', 'content', 0, 'sortorder DESC, id ASC', false);
- if (!empty($options['showsize']) && count($files)) {
- $sizebytes = 0;
- foreach ($files as $file) {
- // this will also synchronize the file size for external files if needed
- $sizebytes += $file->get_filesize();
+ if (!empty($options['showsize'])) {
+ if (!empty($filedetails['size'])) {
+ $size = display_size($filedetails['size']);
+ $langstring .= 'size';
+ $infodisplayed += 1;
}
- if ($sizebytes) {
- $size = display_size($sizebytes);
- }
- $langstring .= 'size';
- $infodisplayed += 1;
}
- if (!empty($options['showtype']) && count($files)) {
- // For a typical file resource, the sortorder is 1 for the main file
- // and 0 for all other files. This sort approach is used just in case
- // there are situations where the file has a different sort order
- $mainfile = reset($files);
- $type = get_mimetype_description($mainfile);
- // Only show type if it is not unknown
- if ($type === get_mimetype_description('document/unknown')) {
- $type = '';
+ if (!empty($options['showtype'])) {
+ if (!empty($filedetails['type'])) {
+ $type = $filedetails['type'];
+ $langstring .= 'type';
+ $infodisplayed += 1;
}
- $langstring .= 'type';
- $infodisplayed += 1;
}
- if (!empty($options['showdate'])) {
- $mainfile = reset($files);
- $uploaddate = $mainfile->get_timecreated();
- $modifieddate = $mainfile->get_timemodified();
-
- if ($modifieddate > $uploaddate) {
- $date = get_string('modifieddate', 'mod_resource', userdate($modifieddate));
- } else {
- $date = get_string('uploadeddate', 'mod_resource', userdate($uploaddate));
+ if (!empty($options['showdate']) && (!empty($filedetails['modifieddate']) || !empty($filedetails['uploadeddate']))) {
+ if (!empty($filedetails['modifieddate'])) {
+ $date = get_string('modifieddate', 'mod_resource', userdate($filedetails['modifieddate'],
+ get_string('strftimedatetimeshort', 'langconfig')));
+ } else if (!empty($filedetails['uploadeddate'])) {
+ $date = get_string('uploadeddate', 'mod_resource', userdate($filedetails['uploadeddate'],
+ get_string('strftimedatetimeshort', 'langconfig')));
}
$langstring .= 'date';
$infodisplayed += 1;
