Schema::table('file_resource_roles', function (Blueprint $table) {
                $schemaManager = Schema::getConnection()->getDoctrineSchemaManager();
                $indexesFound = $schemaManager->listTableIndexes('file_resource_roles');
                $indexesToCheck = ['role_id', 'file_resource_id'];

                foreach ($indexesToCheck AS $indexToCheck) {
                    if (array_key_exists('file_resource_roles_'.$indexToCheck.'_fk', $indexesFound)) {
                        $table->dropForeign('file_resource_roles_'.$indexToCheck.'_fk');
                        $table->dropIndex('file_resource_roles_'.$indexToCheck.'_fk');
                    }
                }
            });