Doctrine 2 DQL: Can I combine these queries into 1

I am trying to combine these queries into 1

# Get completed todos
SELECT COUNT(t.id) from Application\Models\Todos t 
WHERE t.parent IS NULL 
AND t.todoList.project = :proj
AND t.completedOn IS NOT NULL

# Get total todos
SELECT COUNT(t.id) from Application\Models\Todos t
WHERE t.parent IS NULL 
AND t.todoList.project = :proj

• A Project have Lists
• A List have Todos
• A Todo can have 1 level of children todo - In my queries, I was querying for top level todos
• A Todo have completedOn, dueOn

In another function, I want to get

• total number of tasks belo开发者_StackOverflownging to you & the project
• total number of completed tasks belonging to you & the project
• total number of incompleted tasks due today belonging to you & the project

Do I need to do it in separate queries?

If you had a flag INT completed 1/0 then yes, using a SUM and a COUNT, but in this case i dont think its possible.