Fix the latest migration for MySQL DB

database/migrations/20180510141439_change_length_contacts_id.php

@@ -7,6 +7,8 @@ class ChangeLengthContactsId extends Migration
 {
     public function up()
     {
+        $this->disableForeignKeyCheck();
+
         $this->schema->table('contacts', function(Blueprint $table) {
             $table->string('id', 256)->change();
             $table->string('nickname', 256)->change();
@@ -49,10 +51,14 @@ class ChangeLengthContactsId extends Migration
             $table->string('jidfrom', 256)->change();
             $table->string('resource', 256)->change();
         });
+
+        $this->enableForeignKeyCheck();
     }
 
     public function down()
     {
+        $this->disableForeignKeyCheck();
+
         $this->schema->table('contacts', function(Blueprint $table) {
             $table->string('id', 64)->change();
             $table->string('nickname', 64)->change();
@@ -95,5 +101,7 @@ class ChangeLengthContactsId extends Migration
             $table->string('jidfrom', 96)->change();
             $table->string('resource', 96)->change();
         });
+
+        $this->enableForeignKeyCheck();
     }
 }

src/Movim/Migration.php

@@ -20,4 +20,18 @@ class Migration extends AbstractMigration
 
         $this->schema = Capsule::schema();
     }
+
+    public function enableForeignKeyCheck()
+    {
+        if ($this->schema->getConnection()->getDriverName() == 'mysql') {
+            $this->schema->getConnection()->unprepared('SET foreign_key_checks = 1');
+        }
+    }
+
+    public function disableForeignKeyCheck()
+    {
+        if ($this->schema->getConnection()->getDriverName() == 'mysql') {
+            $this->schema->getConnection()->unprepared('SET foreign_key_checks = 0');
+        }
+    }
 }