Answers for "on update cascade laravel"

how work cascade laravel

Schema::create('posts', function (Blueprint $table) {
    $table->increments('id');
    $table->integer('author')->unsigned();
    $table->timestamps();
    $table->foreign('author')->references('id')->on('users')->onUpdate('cascade');
});

how set cascade on delete and update in same time in laravel

$table->foreign('user_id')->references('id')->on('users')
->onDelete('SET NULL')
->onUpdate('SET NULL'); // also available CASCADE, RESTRICT, DO NOTHING, NO ACTION