Laravelで外部キー制約のあるテーブルを操作する。 - Qiita

function run() { Schema::create('parents', function (Blueprint $table) { $table->increments('id'); $table->string('email', 60)->unique(); $table->string('name', 30); $table->timestamps(); $table->softDeletes(); }); Schema::create('children', function (Blueprint $table) { $table->increments('id'); $table->string('email', 60); $table->foreign('email')->references('email')->on('parents')->onDelete('c