Laravel 5 - Use 'isAdmin' role check method when querying a model - laravel

Question

I have implemented a basic role system that uses a table 'role_user'.
On my user model I have a few methods that check the roles, one of them is:
public function isStaff()
{
foreach ($this->roles()->get() as $role)
{
if ($role->id == 3)
{
return true;
}
}
return false;
}
How can I use this method when I am querying users?
This query here:
return User::where('name', 'like', "%".$request->name."%")
->orWhere('email', 'like', "%".$request->name."%")
->whereDoesntHave('Teams', function ($query) use($teamId) {
$query->whereId($teamId);
})
->with('teams')
->get();
Currently returns all users, but I only wish to return users that have a role of 3 (isStaff)

Answer 1

You can using Scopes With Laravel instead of multiple methods to check for different methods.
public function scopeRole($query, $flag)
{
return $query->where('role', $flag);
}
and then
$users= User::role(3)->get();
check the reference tutorial for Creating Dynamic Scopes

Answer 2

it's better to do condition
return User::where('name', 'like', "%".$request->name."%")
->orWhere('email', 'like', "%".$request->name."%")
->whereDoesntHave('Teams', function ($query) use($teamId) {
$query->whereId($teamId);
})
->whereHas('roles', function($q) use ($role_id){
$q->where('id',$role_id);
})
->with('teams')
->get();
or also you can create a method for above query and based on param reurn result

Answer 3

You can have a scope called staff in your User model, then use that to narrow down your result:
public function scopeStaff($query, $roll_id = 3)
{
return $query->where('role_id', '=', $roll_id)
}
So when checking (with the model) for staff roles, you can improve the function that does that:
public function isStaff($role_id = 3)
{
return $this->role_id = $role_id ? $this : false;
}
Therefore, when using the query builder you can use the first method to narrow the result to those with the specified id, as you can see the default is 3 but will change to any value you give:
$staff_users = User::staff()->get();
Then the other one for verifying if a matched user model is a staff:
$user = User::find(1);
$is_staff = $user->isStaff(); //false or returns the same model
Hope this helps