Fix error of foreign_key_constraint when rolling back migrations.

darvishiyan-mahdi · Nov 23, 2017 · 8083148 · 8083148
1 parent ce471a4
commit 8083148
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/migrations/2017_04_05_103357_alter_id_in_transactions_table.php b/migrations/2017_04_05_103357_alter_id_in_transactions_table.php
@@ -50,6 +50,13 @@ public function up()
 	 */
 	public function down()
 	{
+		// Don't check for foreign key constraints when executing below query in current session
+		DB::statement('set foreign_key_checks=0');
+
 		DB::statement("ALTER TABLE `" . $this->getTable() . "` CHANGE `id` `id` INT(10) UNSIGNED NOT NULL;");
+
+		// Ok! now DBMS can check for foregin key constraints
+		DB::statement('set foreign_key_checks=1');
+
 	}
 }