我正在开发一个在日历中显示活动的 iPad 应用程序,并且我有 2 个与此活动相关的 MBO。我能够通过查询+连接获得结果集。但我无法使用 testcriteria 句子获得“where”查询。在我添加 testcriteria 行之前,查询是可以的。这是代码:
SUPQuery *oneActivitiesQuery = [SUPQuery getInstance];
[oneActivitiesQuery select:@"c.DATE_FROM, d.DESCRIPTION"];
[oneActivitiesQuery from:@"GetCalendar" :@"c"];
[oneActivitiesQuery join:@"GetActivityDetail" :@"d" :@"d.GUID" :@"c.GUID"];
oneActivitiesQuery.testCriteria = [SUPAttributeTest match:@"c.DATE_FROM" :d];
SUPQueryResultSet* calendarResultSet = [MBOCRM_MOBILE_MBOCRM_MOBILEDB executeQuery:oneActivitiesQuery ];
if (calendarResultSet == nil) {
MBOLog(@"executeQuery failed");
return;
}
for (SUPDataValueList* result in calendarResultSet ){
MBOLog(@"Date --> %@", [[SUPDataValue getNullableDate:[result item:0]] description]);
MBOLog(@"Description --> %@", [SUPDataValue getNullableString:[result item:1]]);
}
第 5 行中的“d”是一个 NSDate 变量。
这是错误消息:
Terminating app due to uncaught exception 'SUPPersistenceException', reason: 'unexpected null value for '"b"'