How to add objects of two PFquery data using parse? - ios

Question

I am having two queries one is friendsrequestQuery and other is user query i want to add all the data of friendrequestQuery details into user query while fetching data from the user Query.
NSPredicate *predicate12=[NSPredicate predicateWithFormat:#"((UserFriendId == %# )AND (UserId!=%#)) OR ((UserFriendId != %# )AND (UserId==%#)) ",#"Nwk44aeSrz",#"Nwk44aeSrz",#"Nwk44aeSrz",#"Nwk44aeSrz"];
PFQuery *innerQuery = [PFQuery queryWithClassName:#"FriendsDetails" predicate:predicate12];
[innerQuery whereKey:#"BlockStatus" equalTo:#"No"];
PFQuery * userQuery = [PFUser query];
[userQuery whereKey:#"objectId" matchesKey:#"UserFriendId" inQuery:innerQuery];
[userQuery whereKey:#"objectId" matchesKey:#"UserId" inQuery:innerQuery];
[userQuery whereKey:#"objectId" notEqualTo:#"Nwk44aeSrz"];
I wil explain the thing what i need exactly is, in innerquery table i am having 10 columns but i need the data of these particular coloum data converstionid,lastmessage,lastdate while reterving the data of users query.
Now i am getting the details of userquery but not the details of innerquery,so i need the details of Innerquerydetails .
Please help me .

Answer 1

I think you'd be better off storing pointers as opposed to Id's, this way you can include that data as well.
I will not use predicates, I realize your query is cleaner with predicates, but I think the logic is easier to see with this. You can convert it back to predicate for yourself.
// get your user
PFUser * userForQuery; // set up your user for the query, if it's current user, = [PFUser currentUser];
// first part of predicate
PFQuery * innerQueryA = [PFQuery queryWithClassName:#"FriendsDetails"];
[innerQueryA whereKey:#"UserFriend" equalTo:userForQuery]; // from #"UserFriendId"
[innerQueryA whereKey:#"User" notEqualTo:userForQuery]; // from #"UserId"
// second part of predicate
PFQuery * innerQueryB = [PFQuery queryWithClassName:#"FriendsDetails"];
[innerQueryB whereKey:#"userFriend" notEqualTo:userForQuery]; // from #"UserFriendId"
[innerQueryB whereKey:#"user" equalTo:userForQuery]; // from #"UserId"
// combine
PFQuery * query = [PFQuery orQueryWithSubqueries:#[innerQueryA, innerQueryB]];
[query whereKey:#"BlockStatus" equalTo:#"No"];
// Now, as you remember, we are storing a pointer in #"User" as opposed to an id #"UserId" as you had it. Because of
// this, we will use parse's includeKey: feature.
[query includeKey:#"User"]; // tells the query to include the data associated with these keys;
NSMutableArray * usersRetrieved = [[NSMutableArray alloc]init];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
// objects will contain all of your objects
for (PFObject * object in objects) {
[usersRetrieved addObject:object[#"User"]]; // all the data should be available for the #"User" object
}
// objects will contain all the #"friendDetails" objects
// usersRetrieved will contain all the #"User" objects
}
else {
}
}];
I realize this changes your data structure a little bit, but it should give you all of the data you need.