public function remove_label(local_mail_label $label)
{
global $DB;
assert($this->has_user($label->userid()));
assert(!$this->draft or $this->role[$label->userid()] == 'from');
assert(!$this->deleted($label->userid()));
if (isset($this->labels[$label->id()])) {
$transaction = $DB->start_delegated_transaction();
$conditions = array('messageid' => $this->id, 'labelid' => $label->id());
$DB->delete_records('local_mail_message_labels', $conditions);
$this->delete_index($label->userid(), 'label', $label->id());
$transaction->allow_commit();
unset($this->labels[$label->id()]);
}
}
public static function assertLabel(local_mail_label $label)
{
self::assertRecords('labels', array('id' => $label->id(), 'userid' => $label->userid(), 'name' => $label->name(), 'color' => $label->color()));
}