Laravel Many to Many Eloquent Relationship Example

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:

Schema::create('employees', function (Blueprint $table) {
    $table->increments('id');
    $table->string('name');
    $table->string('email')->unique();
    $table->string('password');
    $table->rememberToken();
    $table->timestamps();
});

positions table migration:

Schema::create('positions', function (Blueprint $table) {
    $table->increments('id');
    $table->string('name');
    $table->timestamps();
});

position_employee table migration:

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');
});

Create Models:

User Model:

belongsToMany(Role::class, 'position_employee');
    }
}

Role Model:

belongsToMany(User::class, 'position_employee');
    }
}

UserRole Model:

<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class UserRole extends Model
{
     
}

Retrieve Records:

$employee = User::find(1);	
 
dd($employee->positions);

$role = Role::find(1);	
 
dd($role->employees);

Make Records:

$employee = User::find(2);	
 
$roleIds = [1, 2];
$employee->positions()->attach($roleIds);

$employee = User::find(3);	
 
$roleIds = [1, 2];
$employee->positions()->sync($roleIds);

$role = Role::find(1);	
 
$employeeIds = [10, 11];
$role->employees()->attach($employeeIds);

$role = Role::find(2);	
 
$employeeIds = [10, 11];
$role->employees()->sync($employeeIds);

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