问题描述
我有这个迁移文件
Schema::create('table_one', function(Blueprint $table) { $table->increments('id'); $table->string('name'); $table->integer('table_two_id')->unsigned(); $table->foreign('table_two_id')->references('id')->on('table_two'); $table->timestamps(); });
我想更新以使其 ->onDelete('cascade');
$table->foreign('table_two_id')->references('id')->on('table_two')->onDelete('cascade');
最好的方法是什么?
有没有类似->change();
谢谢
推荐答案
删除外键然后再次添加并运行迁移.
Drop the foreign key then add it again and run migrate.
public function up() { Schema::table('table_one', function (Blueprint $table) { $table->dropForeign(['table_two_id']); $table->foreign('table_two_id') ->references('id') ->on('table_two') ->onDelete('cascade'); }); }