Add user sorting

app/Filters/TaskFilters.php

@@ -110,12 +110,15 @@ class TaskFilters extends QueryFilters
             return $this->builder;
         }
 
-
         if ($sort_col[0] == 'client_id') {
             return $this->builder->orderBy(\App\Models\Client::select('name')
                     ->whereColumn('clients.id', 'tasks.client_id'), $sort_col[1]);
         }
 
+        if ($sort_col[0] == 'user_id') {
+            return $this->builder->orderBy(\App\Models\User::select('first_name')
+                    ->whereColumn('users.id', 'tasks.user_id'), $sort_col[1]);
+        }
 
         return $this->builder->orderBy($sort_col[0], $sort_col[1]);
     }

app/Transformers/TaskTransformer.php

@@ -36,6 +36,7 @@ class TaskTransformer extends EntityTransformer
         'client',
         'status',
         'project',
+        'user',
     ];
 
     public function includeDocuments(Task $task)
@@ -45,6 +46,18 @@ class TaskTransformer extends EntityTransformer
         return $this->includeCollection($task->documents, $transformer, Document::class);
     }
 
+    public function includeUser(Task $task): ?Item
+    {
+        $transformer = new UserTransformer($this->serializer);
+
+        if (!$task->user) {
+            return null;
+        }
+
+        return $this->includeItem($task->user, $transformer, User::class);
+    }
+
+
     public function includeClient(Task $task): ?Item
     {
         $transformer = new ClientTransformer($this->serializer);