fix unit tests as well as missing code

app/Services/Badges/BadgeUserLookupService.php

@@ -13,6 +13,10 @@ class BadgeUserLookupService
 
     public function fetchStaffList(?string $schoolYear, array $selectedUserIds = []): array
     {
+        $rolesAggregate = DB::connection()->getDriverName() === 'sqlite'
+            ? "GROUP_CONCAT(DISTINCT CASE WHEN LOWER(roles.name) != 'parent' THEN roles.name END) as roles"
+            : "GROUP_CONCAT(DISTINCT CASE WHEN LOWER(roles.name) != 'parent' THEN roles.name END ORDER BY roles.name SEPARATOR ', ') as roles";
+
         $query = DB::table('users')
             ->leftJoin('user_roles', 'user_roles.user_id', '=', 'users.id')
             ->leftJoin('roles', 'roles.id', '=', 'user_roles.role_id')
@@ -20,7 +24,7 @@ class BadgeUserLookupService
                 'users.id',
                 'users.firstname',
                 'users.lastname',
-                DB::raw("GROUP_CONCAT(DISTINCT CASE WHEN LOWER(roles.name) != 'parent' THEN roles.name END ORDER BY roles.name SEPARATOR ', ') as roles"),
+                DB::raw($rolesAggregate),
             ])
             ->groupBy('users.id', 'users.firstname', 'users.lastname');
 
@@ -69,7 +73,7 @@ class BadgeUserLookupService
         }
 
         $row = $query
-            ->orderByRaw("FIELD(tc.position, 'main', 'ta')")
+            ->orderByRaw("CASE tc.position WHEN 'main' THEN 0 WHEN 'ta' THEN 1 ELSE 2 END")
             ->orderByRaw('IFNULL(tc.updated_at,"0000-00-00 00:00:00") DESC')
             ->orderByDesc('tc.id')
             ->first();