Parse : is it possible to follow progress of PFObject upload - objective-c

Question

I have a PFObject containing a text and a PFFile.
PFObject *post = [PFObject objectWithClassName:#"Posts"];
post[#"description"] = self.Photodescription.text;
NSData *picture = UIImageJPEGRepresentation(self.capturedPicture, 0.5f);
post[#"picture"] = [PFFile fileWithName:#"thumbnailPicture.png" data:picture];
I would like to get progress of upload in order to display a progression bar. The following function only works for PFFile.
[post[#"picture"] saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
}progressBlock:^(int percentDone) {
// Update your progress spinner here. percentDone will be between 0 and 100.
NSLog(#"%i", percentDone);
}];
Is there a way to do the same for a PFObject?

Answer 1

Are you uploading a single object or an array of objects? Right now there is no progress for a single PFObject. For very large arrays of PFObjects I did create a category for uploading a series of PFObjects in the background with progress feedback, it works like the normal saveAlInBackground: except you specific the chunkSize (How many PFObjects to save at a time until complete) and give it a progress block handler which is calls each time a chunk is completed:
+(void)saveAllInBackground:(NSArray *)array chunkSize:(int)chunkSize block:(PFBooleanResultBlock)block progressBlock:(PFProgressBlock)progressBlock
{
unsigned long numberOfCyclesRequired = array.count/chunkSize;
__block unsigned long count = 0;
[PFObject saveAllInBackground:array chunkSize:chunkSize block:block trigger:^(BOOL trig) {
count++;
progressBlock((int)(100.0*count/numberOfCyclesRequired));
}];
}
+(void)saveAllInBackground:(NSArray *)array chunkSize:(int)chunkSize block:(PFBooleanResultBlock)block trigger:(void(^)(BOOL trig))trigger
{
NSRange range = NSMakeRange(0, array.count <= chunkSize ? array.count:chunkSize);
NSArray *saveArray = [array subarrayWithRange:range];
NSArray *nextArray = nil;
if (range.length<array.count) nextArray = [array subarrayWithRange:NSMakeRange(range.length, array.count-range.length)];
[PFObject saveAllInBackground:saveArray block:^(BOOL succeeded, NSError *error) {
if(!error && succeeded && nextArray){
trigger(true);
[PFObject saveAllInBackground:nextArray chunkSize:chunkSize block:block trigger:trigger];
}
else
{
trigger(true);
block(succeeded,error);
}
}];
}