正在缓存基本的 Parse.com 查询,但我无法缓存此特定查询,我已按照建议运行了很多次,并且缓存的结果始终为零。请提出解决方案。
PFQuery *lotsOfWins = [PFQuery queryWithClassName:@"Class1"];
[lotsOfWins whereKey:@"Score" equalTo:@"0:]; //AND
[lotsOfWins whereKey:@"Status" notEqualTo:@"4"];
PFQuery *fewWins = [PFQuery queryWithClassName:@"Class2"];
[fewWins whereKey:@"NAME" equalTo:@"KHAN"]; AND
[fewWins whereKey:@"meetingStatus" notEqualTo:@"4"];
PFQuery *query = [PFQuery orQueryWithSubqueries:[NSArray arrayWithObjects:fewWins,lotsOfWins,nil]];
[query orderByDescending:@"updatedAt"];
query.limit = [NSNumber numberWithInt:10];
query.cachePolicy = kPFCachePolicyCacheThenNetwork; // CACHE POLICY
[query findObjectsInBackgroundWithBlock:^(NSArray *results, NSError *error) {
NSLog(@"Successfully retrieved %d results.", results.count);
if(error) {
NSLog(@"It's an error!");
}
}];