`syncPermissions（）`和`attachPermissions（）`之间的区别？

Question

Laravel的Laratrust包中syncPermissions()和attachPermissions()之间有什么区别？

$role->attachPermissions($permission);

和

$role->syncPermissions($permission);

Answer 1

这些差异与Laravel的多对多关系的本地attach()和sync()方法相同。

请参阅：Laravel Eloquent - Attach vs Sync

Answer 2

  

$admin->attachPermission($createPost);

 // parameter can be a Permission object, array or id 
 // equivalent to $admin->permissions()->attach([$createPost->id]);

...

  

$owner->attachPermissions([$createPost, $editUser]);

// parameter can be a Permission object, array or id 
// equivalent to $owner->permissions()->attach([$createPost->id, $editUser->id]);

...

  

$owner->syncPermissions([$createPost, $editUser]);

// parameter can be a Permission object, array or id 
// equivalent to $owner->permissions()->sync([$createPost->id, $editUser->id]);

来自Laratrust Docs。