Eloquent: Laravel 7+ Foreign Keys
From Laravel 7, in migrations you don't need to write two lines for relationship field - one for the field and one for foreign key. Use method foreignId().
Before Laravel 7
Schema::table('posts', function (Blueprint $table)) {
$table->unsignedBigInteger('user_id');
$table->foreign('user_id')->references('id')->on('users');
}
From Laravel 7
Schema::table('posts', function (Blueprint $table)) {
$table->foreignId('user_id')->constrained();
}
Or, if your field is different from the table reference
Schema::table('posts', function (Blueprint $table)) {
$table->foreignId('created_by_id')->references('id')->on('users');
}
