3
我有一个类,经营范围:解析PFQuery包括键不灵
头:
#import <UIKit/UIKit.h>
#import <Parse/Parse.h>
@interface Business : PFObject <PFSubclassing>
+ (NSString *)parseClassName;
@property (retain) NSString *name;
@property (retain) NSString *shortName;
@property (retain) PFFile *logo;
@property (retain) PFFile *banner;
@end
实现:
#import "Business.h"
#import <Parse/PFObject+Subclass.h>
@implementation Business
@dynamic name;
@dynamic shortName;
@dynamic logo;
@dynamic banner;
+ (NSString *)parseClassName
{
return @"Business";
}
@end
和A类,关系
头:
#import <Parse/Parse.h>
#import "Business.h"
@interface Relation : PFObject <PFSubclassing>
@property (retain) PFUser *user;
@property (retain) Business *business;
@end
实施
#import "Relation.h"
#import <Parse/PFObject+Subclass.h>
@implementation Relation
@dynamic business;
@dynamic user;
+ (NSString *)parseClassName
{
return @"Relation";
}
@end
我正在做一个关系查询,希望找到与某些用户的业务,就像这样:
PFQuery *query = [Relation query];
[query includeKey:[Business parseClassName]];
[query whereKey:@"user" equalTo:[PFUser currentUser]];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
NSMutableArray *businesses = [NSMutableArray array];
if (objects.count) {
for (Relation *relation in objects) {
[businesses addObject:relation.business];
}
}
block(businesses, objects, error);
}];
它不会出现,我成功地检索企业我想要检索。但是,似乎Business类缺少一些列。我确保使用PFQuery的包含密钥,这样Business类将返回其所有属性,但似乎包含的唯一属性是其对象ID。
(lldb) po businesses <__NSArrayM 0x174050b60>(<Business: 0x170118810, objectId: 7Sdh8a0d8, localId: (null)> { })
对不起,我已经包含这么多的代码,我只是觉得我的错误可能在任何地方。为什么我的查询没有返回完整的Business对象?
谢谢!
是的,很清楚,'includeKey:'需要的列名。 –