/**
* Returns a list of artefact IDs that are in this blockinstance.
*
* People may embed artefacts as images etc. They show up as links to the
* download script, which isn't much to go on, but should be enough for us
* to detect that the artefacts are therefore 'in' this blocktype.
*/
public static function get_artefacts(BlockInstance $instance)
{
$artefacts = array();
$configdata = $instance->get('configdata');
if (isset($configdata['text'])) {
require_once get_config('docroot') . 'artefact/lib.php';
$artefacts = artefact_get_references_in_html($configdata['text']);
}
return $artefacts;
}
/**
* Returns a list of artefact IDs that are in this blockinstance.
*
* People may embed artefacts as images etc. They show up as links to the
* download script, which isn't much to go on, but should be enough for us
* to detect that the artefacts are therefore 'in' this blocktype.
*/
public static function get_artefacts(BlockInstance $instance)
{
$configdata = $instance->get('configdata');
$artefacts = array();
if (isset($configdata['artefactid'])) {
$artefacts[] = $configdata['artefactid'];
// Add all artefacts found in the text
$text = $instance->get_artefact_instance($configdata['artefactid'])->get('description');
$artefacts = array_unique(array_merge($artefacts, artefact_get_references_in_html($text)));
}
return $artefacts;
}
public static function get_artefacts(BlockInstance $instance)
{
safe_require('artefact', 'file');
$configdata = $instance->get('configdata');
// Add all artefacts found in the text
if (empty($configdata['text'])) {
$artefacts = array();
} else {
$artefacts = array_unique(artefact_get_references_in_html($configdata['text']));
}
return $artefacts;
}
/**
* Copy the description of the view template
* and its embedded image artefacts
*
* @param View $template the view template
* @param array &$artefactcopies the artefact mapping
* @return string updated description
*/
private function copy_description(View $template, array &$artefactcopies)
{
$new_description = $template->get('description');
if (!empty($new_description) && strpos($new_description, 'artefact/file/download.php?file=') !== false) {
// Get all possible embedded artefacts
$artefactids = array_unique(artefact_get_references_in_html($new_description));
// Copy these image artefacts
foreach ($artefactids as $aid) {
try {
$a = artefact_instance_from_id($aid);
} catch (Exception $e) {
continue;
}
if ($a instanceof ArtefactTypeImage) {
$artefactcopies[$aid] = (object) array('oldid' => $aid, 'oldparent' => $a->get('parent'));
$artefactcopies[$aid]->newid = $a->copy_for_new_owner($this->get('owner'), $this->get('group'), $this->get('institution'));
}
}
// Update the image urls in the description
if (!empty($artefactcopies)) {
$regexp = array();
$replacetext = array();
foreach ($artefactcopies as $oldaid => $newobj) {
// Change the old image id to the new one
$regexp[] = '#<img([^>]+)src=("|\\")' . preg_quote(get_config('wwwroot') . 'artefact/file/download.php?file=' . $oldaid) . '(&|&)embedded=1([^"]*)"#';
$replacetext[] = '<img$1src="' . get_config('wwwroot') . 'artefact/file/download.php?file=' . $newobj->newid . '&embedded=1"';
}
$new_description = preg_replace($regexp, $replacetext, $new_description);
}
}
return $new_description;
}
/**
* Looks through the blog post text for links to download artefacts, and
* returns the IDs of those artefacts.
*/
public function get_referenced_artefacts_from_postbody()
{
return artefact_get_references_in_html($this->get('description'));
}
/**
* Returns a list of artefact IDs that are in this blockinstance.
*
* People may embed artefacts as images etc. They show up as links to the
* download script, which isn't much to go on, but should be enough for us
* to detect that the artefacts are therefore 'in' this blocktype.
*/
public static function get_artefacts(BlockInstance $instance)
{
$configdata = $instance->get('configdata');
$artefacts = array();
if (isset($configdata['artefactid'])) {
$artefacts[] = $configdata['artefactid'];
// Add all artefacts found in the text
$text = $instance->get_artefact_instance($configdata['artefactid'])->get('description');
$artefacts = array_unique(array_merge($artefacts, artefact_get_references_in_html($text)));
// Get all the feedback on this annotation
// to retrieve all the artefacts found in their text
// and to include the feedback as part of the view_artefact.
// Please note that images owned by other users that are place on feedback
// will not be part of the view_artefact because the owner of the
// annotation does not own the image being placed on the feedback.
// Therefore, when exported as Leap2A, these images will not come through.
$sql = "SELECT a.id, a.description\n FROM {artefact} a\n INNER JOIN {artefact_annotation_feedback} af ON a.id = af.artefact\n WHERE af.onannotation = ?";
// Keep a list of the feedback ids.
$artefactfeedback = array();
if ($feedback = get_records_sql_array($sql, array($configdata['artefactid']))) {
foreach ($feedback as $f) {
// Include the feedback artefact.
$artefactfeedback[] = $f->id;
// Include any artefacts found in its text.
// The BlockInstance::rebuild_artefact_list() will sort out the ownership.
$artefacts = array_unique(array_merge($artefacts, artefact_get_references_in_html($f->description)));
}
// Now merge the feedback artefacts as well.
$artefacts = array_unique(array_merge($artefacts, $artefactfeedback));
}
}
return $artefacts;
}
