/**
* Test deleting a group of tag instances.
*/
public function test_tag_bulk_delete_instances()
{
global $DB;
$task = new \core\task\tag_cron_task();
// Setup.
$user = $this->getDataGenerator()->create_user();
$course = $this->getDataGenerator()->create_course();
$context = context_course::instance($course->id);
// Create some tag instances.
for ($i = 0; $i < 10; $i++) {
$tag = $this->getDataGenerator()->create_tag(array('userid' => $user->id));
core_tag_tag::add_item_tag('core', 'course', $course->id, $context, $tag->rawname);
}
// Get tag instances. tag name and rawname are required for the event fired in this function.
$sql = "SELECT ti.*, t.name, t.rawname\n FROM {tag_instance} ti\n JOIN {tag} t ON t.id = ti.tagid";
$taginstances = $DB->get_records_sql($sql);
$this->assertCount(10, $taginstances);
// Run the function.
$task->bulk_delete_instances($taginstances);
// Make sure they are gone.
$instancecount = $DB->count_records('tag_instance');
$this->assertEquals(0, $instancecount);
}
/**
* This function will delete numerous tag instances efficiently.
* This removes tag instances only. It doesn't check to see if it is the last use of a tag.
*
* @deprecated since 3.1
* @param array $instances An array of tag instance objects with the addition of the tagname and tagrawname
* (used for recording a delete event).
*/
function tag_bulk_delete_instances($instances)
{
debugging('Method tag_bulk_delete_instances() is deprecated, ' . 'use \\core\\task\\tag_cron_task::bulk_delete_instances()', DEBUG_DEVELOPER);
$task = new \core\task\tag_cron_task();
return $task->bulk_delete_instances($instances);
}
