Fix User Post same ID (#45)

* Fix User Post same ID

* Fix User Post same ID

inc/database/storage-handler.php

@@ -85,7 +85,12 @@ public function delete_object_data( $object_id ) {
 		$object_type   = str_replace( array( 'deleted_', 'delete_' ), '', current_filter() );
 		$relationships = $this->factory->filter_by( $object_type );
 		foreach ( $relationships as $relationship ) {
-			$this->delete_object_relationships( $object_id, $relationship->id );
+			$setting = $this->factory->get_settings( $relationship->id );
+			$target  = null;
+			if ( $setting['from']['object_type'] !== $setting['to']['object_type'] ) {
+				$target = $setting['from']['object_type'] === $object_type ? 'from' : 'to';
+			}
+			$this->delete_object_relationships( $object_id, $relationship->id, $target );
 		}
 	}
 
@@ -94,14 +99,17 @@ public function delete_object_data( $object_id ) {
 	 *
 	 * @param int    $object_id ID of the object metadata is for.
 	 * @param string $type      The relationship type.
+	 * @param string $target    The relationship target.
 	 */
-	protected function delete_object_relationships( $object_id, $type ) {
+	protected function delete_object_relationships( $object_id, $type, $target ) {
 		global $wpdb;
+		$sql = $target
+			? "DELETE FROM $wpdb->mb_relationships WHERE `type`=%s AND `$target`=%d"
+			: "DELETE FROM $wpdb->mb_relationships WHERE `type`=%s AND (`from`=%d OR `to`=%d)";
 		$wpdb->query(
 			$wpdb->prepare(
-				"DELETE FROM $wpdb->mb_relationships WHERE `type`=%s AND (`from`=%d OR `to`=%d)",
+				$sql,
 				$type,
-				$object_id,
 				$object_id
 			)
 		);