Question

我在Parse.com上有一个云代码，在PFObject上搜索并在创建日期的基础上返回它，代码如下：

Parse.Cloud.define("getJournalEntry", function(request, response) {
  var currDate = request.params.currDate;
  var d1 = new Date(currDate + 1000 * 60 * 60 * 24 * 1); // gets 7 days ago
  var query = new Parse.Query("JournalEntry");
  query.greaterThan("createdAt",currDate);
  query.lessThan("createdAt",d1);

  query.find({
    success: function(results) {
      var entry = results[0];
      response.success(entry);
    },
    error: function() {
      response.error("no entry found");
    }
  });
});

我正在尝试从iOS应用程序调用此代码，如下所示

NSDate *dateOfMonth = .....;// some calculations


[PFCloud callFunctionInBackground:@"getJournalEntry"
                   withParameters:@{@"currDate": dateOfMonth}
                            block:^(PFObject  *entry, NSError *error) {
                                if (!error) {

                                    NSLog(entry[@"text"]);
                                }
                                else
                                {
                                    NSLog(error.description);
                                }
}];

从控制台检查此代码时，如果我提供错误的日期，则会返回预期的回复，但在iOS中它总是崩溃并出现以下错误

2014-07-16 18:18:44.343 Emojo[2845:60b] -[NSNull objectForKeyedSubscript:]: unrecognized          
selector sent to instance 0x27f3068
2014-07-16 18:18:44.345 Emojo[2845:60b] *** Terminating app due to uncaught exception      
'NSInvalidArgumentException', reason: '-[NSNull objectForKeyedSubscript:]: unrecognized selector   
sent to instance 0x27f3068'

可能是什么问题？

即使发送正确的日期或错误的日期，我也会这样做。

Answer 1

尝试这可能会有所帮助

<强>更新

NSDate *dateOfMonth = [NSDate date];
NSDateFormatter *dateformat = [[NSDateFormatter alloc]init];
[dateformat setDateFormat:@"dd-MM-YYYY"];

NSMutableDictionary *dateOfMonthDic = [[NSMutableDictionary alloc]init];
[dateOfMonthDic setValue: [dateformat stringFromDate:dateOfMonth ] forKey:@"currDate"];

 [PFCloud callFunctionInBackground:@"getJournalEntry"
                       withParameters:dateOfMonthDic
                                block:^(PFObject  *entry, NSError *error) {
                                    if (!error) {

                                        NSLog(entry[@"text"]);
                                    }
                                    else
                                    {
                                        NSLog(error.description);
                                    }
                                }];

谢谢;干杯..

无法使用iOS SDK从此云代码中获取PFObject

1 个答案: