laravel migration best way to add foreign key

Question

Simple question: I\'m new to Laravel. I have this migration file:

Schema::create(\'lists\', function(Blueprint $table) {
    $table->increments(\'id\'); 
         


        

Answer 1

Laravel 7.x Foreign Key Constraints

Laravel also provides support for creating foreign key constraints, which are used to force referential integrity at the database level. For example, let's define a user_id column on the posts table that references the id column on a users table:

Schema::table('posts', function (Blueprint $table) {
    $table->unsignedBigInteger('user_id');

    $table->foreign('user_id')->references('id')->on('users');
});

Since this syntax is rather verbose, Laravel provides additional, terser methods that use convention to provide a better developer experience. The example above could be written like so:

Schema::table('posts', function (Blueprint $table) {
    $table->foreignId('user_id')->constrained();
});

Source: https://laravel.com/docs/7.x/migrations