Laravel Tip: Saving/Updating Eloquent model with associated entities with single line of code

Imagine you have two entities Employees and Department.

Usually if you want to update something in department and its associated employee you will do something like this:

	$department = Department::find(1);
	$department->name = 'new name';
	$department->employees[0]->name = 'new employee name';
	// saving employee
	$department->employees[0]->save();
	// saving department
	$department->save();

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However you save all associated relationships in a single line with just:

$department->push();

Source: https://laravel.com/docs/8.x/eloquent-relationships#the-push-method