laravel inserting into multiple tables

Stefan Bogdanescu

Founder & Senior Architect · 2026-06-29

Laravel Company
Title: Efficiently Inserting Data into Multiple Tables using Laravel Body:

Handling data across multiple tables in your Laravel application can be quite challenging. You may need to insert the same information from one table to another, ensuring that related entities are correctly linked. In this blog post, we will walk through a comprehensive approach to handle this scenario effectively using Laravel's powerful Eloquent ORM and eloquent relationships.

Modeling Your Database

First, let us consider the database structure:
Table 1 (something):
- id (primary key)
- name
- url

Table 2 (something_users):
- id (primary key)
- id_something (foreign key to Table 1)
- email
- password
In this example, we have two tables. The first one is called 'something' and stores information about items with ids, names, and URLs. The second table, 'something_users', contains user-related data such as email addresses and passwords. We will need to establish relationships between these two tables to insert the data efficiently.

Model Creation

Your models should be set up in a way that supports the required functionality. 1. Create 'Something' model:
class Something extends Eloquent {
    protected $table = 'something';

    protected $fillable = ['name', 'email', 'password'];

    public $errors;

    public function User()
    {
        return $this->belongsTo('User', 'id', 'id_something');
    }
}
2. Create 'User' model:
class User extends Eloquent implements UserInterface, RemindableInterface {
    use UserTrait, RemindableTrait;

    protected $table = 'something_users';

    protected $hidden = array('password', 'remember_token');

    public function Something()
    {
        return $this->belongsTo('Something');
    }
}

Controller Setup

In your controller, we will handle the insertion process. We'll use Laravel's built-in validation and database interaction features: 1. Get input from a form or request:
$input = Input::all();

// some additional validations and formatting...
2. Save the data in your models:
$this->db->fill($input);

$this->db->password = Hash::make(Input::get('password'));

$this->db->push();

$this->db->save();

Inserting Data into Multiple Tables

Now, we can insert the data in both tables using the following SQL: 1. Insert data into 'something' table:
insert into `something` (`name`, `email`, `password`) values...
2. Insert data into 'something_users' table, which will automatically create a user with the same id as the one we created in the first table:
insert into `something_users` (`id_something`, `email`, `password`) values...
In conclusion, by building strong models and leveraging Laravel's powerful Eloquent ORM and relationships, you can efficiently insert data across multiple tables in your application. This approach not only reduces code complexity but also helps maintain a clean and well-structured database. Remember to always validate user input before interacting with the database and use appropriate security measures to protect sensitive information.