Today, We want to share with you Laravel Many to Many Eloquent Relationship Example.
In this post we will show you many to many relationship laravel 5.6, hear for laravel 5 save many to many relationship we will give you demo and example for implement.
In this post, we will learn about laravel 5 many to many sync with an example.
Laravel Many to Many Eloquent Relationship Demo
let’s start, I have to make database simple migration of main “employees”, “positions” and “position_employee” simple created table. I shall also put the main Laravel foreign key with employees and positions table. so let’s demo for Laravel Many to Many Eloquent Relationship make like as below:
Create Migrations:
employees table migration:
[php]
Schema::create(’employees’, function (Blueprint $table) {
$table->increments(‘id’);
$table->string(‘name’);
$table->string(’email’)->unique();
$table->string(‘password’);
$table->rememberToken();
$table->timestamps();
});
[/php]
positions table migration:
[php]
Schema::create(‘positions’, function (Blueprint $table) {
$table->increments(‘id’);
$table->string(‘name’);
$table->timestamps();
});
[/php]
position_employee table migration:
[php]
Schema::create(‘position_employee’, function (Blueprint $table) {
$table->integer(’employee_id’)->unsigned();
$table->integer(‘position_id’)->unsigned();
$table->foreign(’employee_id’)->references(‘id’)->on(’employees’)
->onDelete(‘cascade’);
$table->foreign(‘position_id’)->references(‘id’)->on(‘positions’)
->onDelete(‘cascade’);
});
[/php]
Create Models:
User Model:
[php]
belongsToMany(Role::class, ‘position_employee’);
}
}
[/php]
Role Model:
[php]
belongsToMany(User::class, ‘position_employee’);
}
}
[/php]
UserRole Model:
[php]
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class UserRole extends Model
{
}
[/php]
Retrieve Records:
[php]
$employee = User::find(1);
dd($employee->positions);
[/php]
[php]
$role = Role::find(1);
dd($role->employees);
[/php]
Make Records:
[php]
$employee = User::find(2);
$roleIds = [1, 2];
$employee->positions()->attach($roleIds);
[/php]
[php]
$employee = User::find(3);
$roleIds = [1, 2];
$employee->positions()->sync($roleIds);
[/php]
[php]
$role = Role::find(1);
$employeeIds = [10, 11];
$role->employees()->attach($employeeIds);
[/php]
[php]
$role = Role::find(2);
$employeeIds = [10, 11];
$role->employees()->sync($employeeIds);
[/php]
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