Swift: long query in Parse (OR/AND condition) - ios

Question

I need to do a compound query with Parse SDK.
My code:
func retrieveObjects() {
let conditions: [String] = .....
let query: PFQuery = self.generateCompoundQueryFromConditions(conditions)
query.findObjectsInBackgroundWithBlock { (objs:[AnyObject]?,error: NSError?) -> Void in
NSLog("\(objs)")
}
}
private func generateCompoundQueryFromConditions(conditions: [String]) -> PFQuery {
var queries: [PFQuery] = []
for condition: String in conditions {
var query = PFQuery(className:"MyClassName")
query.whereKey("objectId", equalTo: condition)
queries.append(query)
}
return PFQuery.orQueryWithSubqueries(queries)
}
Conditions.count -> 24
Code works great, but I get this error:
[Error]: too many $or clauses (Code: 154, Version: 1.7.4)
Is there a way to do a query with many OR conditions?
update
I try also using NSPredicate:
private func generateQueryWithPredicateFromConditions(conditions: [String]) -> PFQuery {
var predicates: [NSPredicate] = []
for condition in conditions {
predicates.append(NSPredicate(format: "objectId = %#", condition))
}
let predicate = NSCompoundPredicate.orPredicateWithSubpredicates(predicates)
return PFQuery(className: "MyClassName", predicate: predicate)
}
Now error is:
'This query is too complex. It had an OR with >4 subpredicates after normalization.'
So, with N-OR condition, I'm going to do N / 4 + N % 4 PFQuery and then merge results. Could be a solution?

Answer 1

I solved by my own in this way, hope can help someone:
let query = PFQuery(className: "MyClassName")
query.whereKey("objectId", containedIn: conditions)
query.findObjectsInBackgroundWithBlock { (objs:[AnyObject]?,error: NSError?) -> Void in
NSLog("\(objs)")
}