Saving related records in laravel
Stefan Bogdanescu
Founder & Senior Architect · 2026-06-29
Title: Efficiently Saving Related Records in Laravel Using Eloquent Relationships
Introduction
Laravel makes it easy to manage related data through its ORM (Object Relational Mapping) component called Eloquent. In this blog post, we'll dive into the process of saving related records for users and their respective dealerships using Laravel's powerful tools. By understanding how to use these features effectively, you can simplify your application code and ensure optimal performance.
Understanding Eloquent Relationships and Migration
Eloquent relationships allow us to define connections between models without explicitly specifying database table structures in the migration files. This saves time and makes our code more flexible. To create a one-to-many relationship between users and dealerships, we need to include appropriate fields in both tables:
1. Add a `dealership_id` column to your `users` table, which will hold the ID of the associated dealership.
2. Create a new migration file for your dealership model, defining the table structure and relationship with users.
Applying Eloquent Relationships in UserController
To save both the user and its related dealership upon registration, we can use Laravel's Eloquent relationships to perform this operation in one go:
1. In your `User` model, define a relationship with your `Dealership` model using the `belongsTo()` method for the existing `dealership_id` column. This connection will allow you to retrieve the related dealership's data based on the user instance.
class User extends Model
{
protected $fillable = [ 'email', 'password', 'dealership_id' ];
public function dealership() {
return $this->belongsTo(Dealership::class);
}
}
public function store()
{
$user = new User();
$user->email = Input::get('email');
$user->password = Input::get('password');
// Create a new dealership instance with the given name:
$dealership = new Dealership();
$dealership->name = Input::get('dealership_name');
// Associate the user with the newly created dealership using Eloquent relationships:
$user->dealership()->associate($dealership);
// Save both the user and its related dealership in one go:
$user->save();
return "User Saved";
}