Laravel is a popular PHP web framework that provides some very convenient functions and tools to make web development easier and faster. Among them, Pivot is a very important function for handling many-to-many relationships. However, in some cases, we may need to remove the Pivot.
Why should you remove Pivot?
During the development process, Pivot limitations sometimes arise, and we may need more customization and control of the many-to-many relationship. At this point, removing the Pivot provides greater flexibility. The following are some common situations:
How to remove Pivot?
There are many ways to remove Pivot. Two common methods are introduced below.
Method 1: Manually create an intermediate table
CREATE TABLE `user_role` ( `id` int(11) unsigned NOT NULL AUTO_INCREMENT, `user_id` int(11) unsigned NOT NULL, `role_id` int(11) unsigned NOT NULL, `created_at` timestamp NULL DEFAULT NULL, `updated_at` timestamp NULL DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
class User extends Model { public function roles() { return $this->belongsToMany(Role::class, 'user_role', 'user_id', 'role_id'); } } class Role extends Model { public function users() { return $this->belongsToMany(User::class, 'user_role', 'role_id', 'user_id'); } }
$user = User::find(1); $roles = $user->roles;
method in the controller Two: Use middleware
php artisan make:middleware SimplifyPivotMiddleware
namespace AppHttpMiddleware; use Closure; class SimplifyPivotMiddleware { public function handle($request, Closure $next) { $user = $request->user; $roles = $user->roles()->withTimestamps()->select('id', 'name')->get(); $user->setRelation('roles', $roles); return $next($request); } }
Route::get('/user/{id}/roles', function ($id) { $user = User::with('roles')->find($id); return response()->json(['status' => 1, 'data' => $user->roles]); })->middleware(SimplifyPivotMiddleware::class);
Conclusion
Pivot is a great way for Laravel to handle many-to-many relationships. However, in some cases, we may need to get rid of the Pivot and create intermediate tables manually, or use middleware to handle many-to-many relationships. This provides greater flexibility and control, but requires more coding and maintenance costs.
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