Parse query with a wherekey on a pointed to object

Question

I am trying to create a query where I can check if the value of an object pointed to meets a certain requirement. Example I have a class called rooms, each room object has a pointer to a post object. I want to check wherekey updatedAt of the post object when getting rooms.

I have tried doing this query.whereKey("post.updatedAt", greaterThan: timeThen!)

but it returns empty

Answer 1

You should use relational query so you have to make a query for posts first

let postsQuery = PFQuery(className:"Post")
query.whereKey("updatedAt", greaterThan: timeThen!)

and then compose the query with the postsQuery like this:

query.whereKey("post", matchesQuery query: postsQuery)

here is the link for the parse guide.