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php – Get all users with role in Laravel

Posted by: admin July 12, 2020 Leave a comment

Questions:

I’m working in this Laravel project which has this structure

users: id | first_name |…

roles: id | name

assigned_roles: id | user_id | role_id

I think this is quite obvious :p

User model

class User extends ConfideUser {
use HasRole;

public function Roles(){
    return $this->belongsToMany('Role','assigned_roles');
}

Role model

class Role extends EntrustRole
{
public function Users()
{
    return $this->belongsToMany('User','assigned_roles');
}


} 

I’m looking for a way to get all users with a specified role in this case ‘Teacher’. I’ve tried this:

$students = User::with(array('Roles' => function($query) {
        $query->where('name','Teacher');
    }))
    ->get();
    return $students;

but this always returns an array of all users.

would anyone know why that’s so?
Thanks!

How to&Answers:

What you’re currently asking laravel for in your $students query, is ‘give me all the students, and for each student get me all of their roles if the role is teacher’

Try using the whereHas

$students = User::whereHas(
    'roles', function($q){
        $q->where('name', 'Teacher');
    }
)->get();

This should get you the users, but only where they have a role where the name is teacher.

Answer:

Try This.

Role::where('rolename', 'user')->first()->users()->get()

Answer:

In case you want to get all users with a list of potentials roles:

$authorizedRoles = ['Teacher', 'Professor', 'Super professor'];

$users = User::whereHas('roles', static function ($query) use ($authorizedRoles) {
                    return $query->whereIn('name', $authorizedRoles);
                })->get();