Migration Foreign Key Vs Eloquent Relationships in Laravel

Question

In Laravel 5.1 I can see that table column relationships can be set-up in 2 ways:

1) Defining Foreign Keys in the Migration table.

2) De

Answer 1

Eloquent assumes the foreign key of the relationship based on the model name. In this case, the App model is automatically assumed to have an app_id foreign key, so in your migrations you do not need to specify:

$table->foreign('app_id')
->references('id')
->on('apps')
->onDelete('cascade');

Documentation