/**
* @param . $post argument is a reference to the post object which is used to store information for the form
* @param . $bloginfo_arg argument is reference to a blogInfo object.
* @todo complete documenting this function. enable trackback and pingback between entries on the same server
*/
function do_edit($post, $blogeditform)
{
global $CFG, $USER, $returnurl;
$post->lastmodified = time();
$dir = blog_file_area_name($post);
if ($blogeditform->save_files($dir) and $newfilename = $blogeditform->get_new_filename()) {
$post->attachment = $newfilename;
}
// update record
if (update_record('post', $post)) {
// delete all tags associated with this entry
//delete_records('blog_tag_instance', 'entryid', $post->id);
//delete_records('tag_instance', 'itemid', $post->id, 'itemtype', 'blog');
untag_an_item('blog', $post->id);
// add them back
add_tags_info($post->id);
add_to_log(SITEID, 'blog', 'update', 'index.php?userid=' . $post->userid . '&postid=' . $post->id, $post->subject);
} else {
error('There was an error updating this post in the database', $returnurl);
}
}
/**
* Updates the tags associated with an item
*
* Ex 1:
* Suppose user 1 is tagged only with "algorithms", "computers" and "software"
* By calling update_item_tags('user', 1, 'algorithms, software, mathematics')
* User 1 will now be tagged only with "algorithms", "software" and "mathematics"
*
* Ex 2:
* update_item_tags('user', '1', 'algorithms, 12, 13')
* User 1 will now be tagged only with "algorithms", and with tags of ids 12 and 13
*
*
* @param string $item_type name of the table where the item is stored. Ex: 'user'
* @param string $item_id id of the item to be tagged
* @param string $tag_names_or_ids_csv comma separated tag names (can be unormalized) or ids of existing tags
* @param string $tag_type type of the tags that are beeing added (optional, default value is "default")
*/
function update_item_tags($item_type, $item_id, $tag_names_or_ids_csv, $tag_type = "default")
{
//if $tag_names_csv is an empty string, remove all tag associations of the item
if (empty($tag_names_or_ids_csv)) {
untag_an_item($item_type, $item_id);
return;
}
//convert any tag ids passed to their corresponding tag names
$tag_names_csv = tag_name_from_string($tag_names_or_ids_csv);
//associate the tags passed with the item
tag_an_item($item_type, $item_id, $tag_names_csv, $tag_type);
//get the ids of the tags passed
$existing_and_new_tags_ids = tags_id(tag_normalize($tag_names_csv));
// delete any tag instance with $item_type and $item_id
// that are not in $tag_names_csv
$tags_id_csv = "'" . implode("','", $existing_and_new_tags_ids) . "'";
$select = "\n itemid = '{$item_id}'\n AND\n itemtype = '{$item_type}'\n AND\n tagid NOT IN ({$tags_id_csv})\n ";
delete_records_select('tag_instance', $select);
}
