Laravel relationship many to many count related data by foreign key - laravel

Question

I have 3 models in my project:
User model code:
<?php
namespace App\Models;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
class User extends Authenticatable
{
use Notifiable;
protected $guarded = [];
public function professions()
{
return $this->belongsToMany('App\Models\Profession', 'user_professions');
}
}
Profession model code
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class Profession extends Model
{
protected $guarded = [];
public function users()
{
return $this->belongsToMany('App\Models\User', 'user_professions');
}
}
Migration:
$table->id();
$table->string("name");
$table->timestamps();
UserProfession model code
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class UserProfession extends Model
{
//
}
Migration:
$table->id();
$table->foreignId('user_id')
->constrained()
->onDelete('cascade');
$table->foreignId('profession_id')
->constrained()
->onDelete('cascade');
When I try this code where I search users by his name and get there professions name then count users in that professions.
Code:
$query = $request->get("query");
$users = User::where("name", "like", "%".$query."%");
$userIds = $users->get()->pluck("id")->toArray();
$professions = Profession::whereHas("users", function($q) use($userIds) {
$q->whereIn('id', $userIds);
})->get()->toArray();
I get error with message:
Illuminate\Database\QueryException: SQLSTATE[23000]: Integrity
constraint violation: 1052 Column 'id' in where clause is ambiguous
(SQL: select * from professions where exists (select * from users
inner join user_professions on users.id = user_professions.user_id
where professions.id = user_professions.profession_id and id in (11,
43, 82)))
Where I have error in my code and how I can fix it?

Answer 1

There are three tables users,user_professions and professions that all have id column.
You need to specify which table's id that you want:
$professions = Profession::whereHas("users", function($q) use($userIds) {
$q->whereIn('users.id', $userIds); // specify the table name
})->get()->toArray();