function get_videos_by_tag_and_category()
{
$tagid = optional_param('id', 0, PARAM_INT);
// tag id
$query_tag = tag_display_name(tag_by_id($tagid));
$query_tag = urlencode($query_tag);
$numberofvideos = DEFAULT_NUMBER_OF_VIDEOS;
if (!empty($this->config->numberofvideos)) {
$numberofvideos = $this->config->numberofvideos;
}
$request = 'http://www.youtube.com/api2_rest?method=youtube.videos.list_by_category_and_tag';
$request .= '&category_id=' . $this->config->category;
$request .= '&dev_id=' . YOUTUBE_DEV_KEY;
$request .= "&tag={$query_tag}";
$request .= "&page=1";
$request .= "&per_page={$numberofvideos}";
return $this->fetch_request($request);
}
/**
* function to attach tags into a post
* @param int postid - id of the blog
*/
function add_tags_info($postid)
{
global $USER;
$post = get_record('post', 'id', $postid);
/// Attach official tags
if ($otags = optional_param('otags', '', PARAM_INT)) {
foreach ($otags as $otag) {
$tag->tagid = $otag;
//insert_record('blog_tag_instance', $tag);
tag_an_item('blog', $postid, $otag, 'official');
}
}
/// Attach Personal Tags
if ($ptags = optional_param('ptags', '', PARAM_NOTAGS)) {
$ptags = explode(',', $ptags);
foreach ($ptags as $ptag) {
$ptag = trim($ptag);
// check for existance
// it does not matter whether it is an offical tag or personal tag
// we do not want to have 1 copy of offical tag and 1 copy of personal tag (for the same tag)
if ($ctag = tag_by_id($ptag)) {
tag_an_item('blog', $postid, $ctag);
} else {
// create a personal tag
if ($tagid = tag_create($ptag)) {
if ($tagid = array_shift($tagid)) {
tag_an_item('blog', $postid, $tagid);
}
}
}
}
}
}
function get_content()
{
global $CFG, $USER, $PAGE;
if ($this->content !== NULL) {
return $this->content;
}
$tagid = optional_param('id', 0, PARAM_INT);
// tag id
//include related tags in the photo query ?
$tags_csv = tag_display_name(tag_by_id($tagid));
if (!empty($this->config->includerelatedtags)) {
$tags_csv .= ',' . tag_names_csv(get_item_tags('tag', $tagid));
}
$tags_csv = urlencode($tags_csv);
//number of photos to display
$numberofphotos = DEFAULT_NUMBER_OF_PHOTOS;
if (!empty($this->config->numberofphotos)) {
$numberofphotos = $this->config->numberofphotos;
}
//sort search results by
$sortby = 'relevance';
if (!empty($this->config->sortby)) {
$sortby = $this->config->sortby;
}
//pull photos from a specific photoset
if (!empty($this->config->photoset)) {
$request = 'http://api.flickr.com/services/rest/?method=flickr.photosets.getPhotos';
$request .= '&api_key=' . FLICKR_DEV_KEY;
$request .= '&photoset_id=' . $this->config->photoset;
$request .= '&per_page=' . $numberofphotos;
$request .= '&format=php_serial';
$response = $this->fetch_request($request);
$search = unserialize($response);
foreach ($search['photoset']['photo'] as $p) {
$p['owner'] = $search['photoset']['owner'];
}
$photos = array_values($search['photoset']['photo']);
} else {
$request = 'http://api.flickr.com/services/rest/?method=flickr.photos.search';
$request .= '&api_key=' . FLICKR_DEV_KEY;
$request .= '&tags=' . $tags_csv;
$request .= '&per_page=' . $numberofphotos;
$request .= '&sort=' . $sortby;
$request .= '&format=php_serial';
$response = $this->fetch_request($request);
$search = unserialize($response);
$photos = array_values($search['photos']['photo']);
}
if (strcmp($search['stat'], 'ok') != 0) {
return;
}
//if no results were returned, exit...
//render the list of photos
$text = '';
foreach ($photos as $photo) {
$text .= '<a href="http://www.flickr.com/photos/' . $photo['owner'] . '/' . $photo['id'] . '/">';
$text .= '<img title="' . s($photo['title']) . '" alt="' . s($photo['title']) . '" class="flickr-photos" src="' . $this->build_photo_url($photo, 'square') . '" /></a>';
}
$this->content = new stdClass();
$this->content->text = $text;
$this->content->footer = '';
return $this->content;
}
$str_tagschecked = str_replace(',', ', ', $str_tagschecked);
tag_flag_reset(implode($tagschecked, ','));
$notice = $str_tagschecked . ' -- ' . get_string('reset', 'tag');
break;
case 'changetype':
if (!data_submitted or !confirm_sesskey()) {
break;
}
$changed = array();
foreach ($tagschecked as $tag_id) {
if (!in_array($tagtypes[$tag_id], $existing_tagtypes)) {
//can not add new types here!!
continue;
}
// update tag type;
$tag = tag_by_id($tag_id);
$tag->tagtype = $tagtypes[$tag_id];
if (update_record('tag', $tag)) {
$changed[] = $tag_id;
}
}
if ($changed) {
$str_changed = tag_name_from_string(implode($changed, ','));
$str_changed = str_replace(',', ', ', $str_changed);
$notice = $str_changed . ' -- ' . get_string('typechanged', 'tag');
}
break;
case 'changename':
if (!data_submitted or !confirm_sesskey()) {
break;
}
function delete_otags($tagids, $sitecontext)
{
foreach ($tagids as $tagid) {
if (!($tag = tag_by_id($tagid))) {
error('Can not delete tag, tag doesn\'t exist');
}
if ($tag->tagtype != 'official') {
continue;
}
if ($tag->tagtype == 'official' and !has_capability('moodle/blog:manageofficialtags', $sitecontext)) {
//can not delete
error('Can not delete tag, you don\'t have permission to delete an official tag');
}
// Delete the tag itself
if (!tag_delete($tagid)) {
error('Can not delete tag');
}
}
}
/**
* Function that updates tags names.
* Updates only if the new name suggested for a tag doesn´t exist already.
*
* @param Array $tags_names_changed array of new tag names indexed by tag ids.
* @return Array array of tags names that were effectively updated, indexed by tag ids.
*/
function tag_update_name($tags_names_changed)
{
$tags_names_updated = array();
foreach ($tags_names_changed as $id => $newname) {
$norm_newname = tag_normalize($newname);
if (!tag_exists($norm_newname) && is_tag_name_valid($norm_newname)) {
$tag = tag_by_id($id);
$tags_names_updated[$id] = $tag->name;
// rawname keeps the original casing of the string
$tag->rawname = tag_normalize($newname, false);
// name lowercases the string
$tag->name = $norm_newname;
$tag->timemodified = time();
update_record('tag', $tag);
}
}
return $tags_names_updated;
}
