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iOS

Posted by m daymon
m daymon
1,091 Points

SWIFT: Blocks to Closure

I have the following function written in Objective C using blocks and I am trying to convert it to swift, but I am banging my head against the wall and can't get it sorted.

Here is the code in Objective C

typedef void (^ResponseBlock) (BOOL succeeded, NSArray* data);

- (void)findAllMediaFromDate:(NSDate*)createdAtDate block:(ResponseBlock)block
{
    NSMutableArray *results = [NSMutableArray array];
    PFQuery *query = [PFQuery queryWithClassName:PARSE_MODEL_ACTIVITIES];
    [query orderByDescending:@"createdAt"];
    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
        if (!error) {
            for (ActivityObject *object in objects) {
                if ([object.media.type isEqualToString: @"video"] || [object.media.type  isEqualToString: @"photo"]) {
                    [results addObject:object];
                }
            }

            block(YES, results);
        }
        else {

        }
    }];
}

Now here is what I have in SWIFT. It's a different function body, but the syntax I am trying is the same...

    func userQuery (){   //This needs to return an array as ABOVE
        var results = [UserModel]()
        println("NM: userQuery")
        var query = UserModel.query()
        query.whereKey("objectId", equalTo:"7N0IWUffOZ")
        query.findObjectsInBackgroundWithBlock { (objects:[AnyObject]!, error:NSError!) -> Void in
            if (objects != nil) {
                NSLog("yea")
                for object in objects{
                    results.append(object as UserModel)
                    //Need to return the array to the userQuery function
                }

            } else {
                NSLog("%@", error)
            }

        }

    }