*
* @param string $table Table name
* @param array $conditions Field condition(s)
+ * @param array $options
+ * - cascade: If true we delete records in other tables that depend on the one we're deleting through
+ * relations (default: true)
* @param boolean $in_process Internal use: Only do a commit after the last delete
* @param array $callstack Internal use: prevent endless loops
*
* @return boolean|array was the delete successful? When $in_process is set: deletion data
*/
- public static function delete($table, array $conditions, $in_process = false, array &$callstack = [])
+ public static function delete($table, array $conditions, array $options = [], $in_process = false, array &$callstack = [])
{
if (empty($table) || empty($conditions)) {
logger('Table and conditions have to be set');
$commands[$key] = ['table' => $table, 'conditions' => $conditions];
+ $cascade = defaults($options, 'cascade', true);
+
// To speed up the whole process we cache the table relations
- if (count(self::$relation) == 0) {
+ if ($cascade && count(self::$relation) == 0) {
self::buildRelationData();
}
// Is there a relation entry for the table?
- if (isset(self::$relation[$table])) {
+ if ($cascade && isset(self::$relation[$table])) {
// We only allow a simple "one field" relation.
$field = array_keys(self::$relation[$table])[0];
$rel_def = array_values(self::$relation[$table])[0];
if ((count($conditions) == 1) && ($field == array_keys($conditions)[0])) {
foreach ($rel_def AS $rel_table => $rel_fields) {
foreach ($rel_fields AS $rel_field) {
- $retval = self::delete($rel_table, [$rel_field => array_values($conditions)[0]], true, $callstack);
+ $retval = self::delete($rel_table, [$rel_field => array_values($conditions)[0]], $options, true, $callstack);
$commands = array_merge($commands, $retval);
}
}
while ($row = self::fetch($data)) {
// Now we accumulate the delete commands
- $retval = self::delete($table, [$field => $row[$field]], true, $callstack);
+ $retval = self::delete($table, [$field => $row[$field]], $options, true, $callstack);
$commands = array_merge($commands, $retval);
}
// Split the SQL queries in chunks of 100 values
// We do the $i stuff here to make the code better readable
$i = $counter[$key_table][$key_condition];
- if (count($compacted[$key_table][$key_condition][$i]) > 100) {
+ if (isset($compacted[$key_table][$key_condition][$i]) && count($compacted[$key_table][$key_condition][$i]) > 100) {
++$i;
}