SQLSTATE[42S22]: Column not found: 1054 Unknown column 'role_not' ERROR - php

Question

I am trying to display users other than super_admin so I used whereRoleNot Function in my controller to hide super_admin .
My User Model:
public function scopeWhereRole($query, $role_name){
return $query->whereHas('roles', function($q) use($role_name){
return $q->whereIn('name', (array)'$role_name');
});
} //end of scopeWhereRole
public function scopeWhereRoleNotIn($query, $role_name){
return $query->whereHas('roles', function($q) use($role_name){
return $q->whereNotIn('name', (array)'$role_name');
});
} //scopeWhereRoleNotIn end
And User controller index method:
public function index()
{
//
$users= User::whereRoleNot('super_admin')->paginate(3);
return view('dashboard.users.index', compact('users'));
} //end of index

Answer 1

The core issue is that you had a typo when using your scope, but due to the way you named your scope, it was still a valid where{column} clause.
Laravel has dynamic functions, like where{column}($search) that constructs a simple where clause for the {column} value and $search value provided. Take your example:
$users = User::whereRoleNot('super-admin');
whereRoleNot tries to create a where clause for the column, in your case, role_not (dynamically constructed from the string RoleNot), and your database table does not have this column.
Simply use a normal where clause:
$users = User::where('role', '!=', 'super_admin')->paginate(3);
Edit: If you want to use a scope, I'd suggest you change the name a bit:
public function scopeRoleIn($query, $role_name){
return $query->whereHas('roles', function($q) use($role_name){
return $q->whereIn('name', (array)$role_name); // Don't use `'` here
});
}
public function scopeRoleNotIn($query, $role_name){
return $query->whereHas('roles', function($q) use($role_name){
return $q->whereNotIn('name', (array)$role_name); // Don't use `'` here
});
}
Then, use your scope as follows:
// $users = User::roleIn('super-admin')->paginate(3); // Etc...
$users = User::roleNotIn('super-admin')->paginate(3);
You may use scopeWhere..., but that naming potentially conflicts with Laravel's dynamic where{column} clauses, so you should avoid it.

Answer 2

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'role_not'
ERROR
It's because Laravel is expecting that you have a column 'role_not' in your User table considering that your local scope was named scopeWhereRoleNotIn, remove the prefix scope and it's final name will become WhereRoleNotIn yet you are calling the scope name as WhereRoleNot. Now you know why column 'role_not' is the error because Laravel is expecting that you were not already using local scope.
Now, to call this local scope, your query should look like this
public function index()
{
$users= User::whereRoleNotIn('super_admin')->paginate(3);
return view('dashboard.users.index', compact('users'));
}
Even if 'where' is a reserved keyword it will still works
It's jut a matter of you missed to call the exact name of your local scope that is why Laravel is treating it as an where clause for your query builder.
please read docs local scope