iphone coredata setValue 在 if 语句中不起作用
我的 coredata 工作正常，但是当我将 setValue 放入 if 中时，它不起作用，
这是代码>
-(void) salvalo {
StaffManagerAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
NSManagedObjectContext *context = [appDelegate managedObjectContext];
NSManagedObject *newDay;
newDay = [NSEntityDescription insertNewObjectForEntityForName:@"DaysAttendance"
inManagedObjectContext:context];
[newDay setValue:startday forKey:@"start"];
[newDay setValue:today forKey:@"datef"];
[newDay setValue:myNumber forKey:@"empID"];
[newDay setValue:myNumber2 forKey:@"intID"];
//[newDay setValue:internet forKey:@"sinch"];
NSError *error;
[context save:&error];
if ([internet isEqualToString:@"YES"] ) {
[self insertJson];
[newDay setValue:internet forKey:@"sinch"];
}
else {
[newDay setValue:@"NO" forKey:@"sinch"];
}
//[self.view removeFromSuperview];
[self dismissModalViewControllerAnimated:YES];
}
请注意，当我在注释部分使用 if 内的代码时
//[newDay setValue:internet forKey:@"sinch"];
，它通常将该值（是/否）保存到 coredata，但是在 if 内部，它不起作用，即使我将所有委托和上下文内容放入 if 中，
那么问题是什么？如何修复它？
多谢！
I have my coredata working fine, but when I put a setValue inside an if, it doesn't work,
this is the code>
-(void) salvalo {
StaffManagerAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
NSManagedObjectContext *context = [appDelegate managedObjectContext];
NSManagedObject *newDay;
newDay = [NSEntityDescription insertNewObjectForEntityForName:@"DaysAttendance"
inManagedObjectContext:context];
[newDay setValue:startday forKey:@"start"];
[newDay setValue:today forKey:@"datef"];
[newDay setValue:myNumber forKey:@"empID"];
[newDay setValue:myNumber2 forKey:@"intID"];
//[newDay setValue:internet forKey:@"sinch"];
NSError *error;
[context save:&error];
if ([internet isEqualToString:@"YES"] ) {
[self insertJson];
[newDay setValue:internet forKey:@"sinch"];
}
else {
[newDay setValue:@"NO" forKey:@"sinch"];
}
//[self.view removeFromSuperview];
[self dismissModalViewControllerAnimated:YES];
}
please note that when I use the code inside the if in the commented part
//[newDay setValue:internet forKey:@"sinch"];
, it saves normally that value (YES/NO) to the coredata, but inside the if, it doesnt work, even if I put al the delegate and context stuff inside the if,,
so what is the problem? how to fix it?
thanks a lot!
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[context save:&error];行位于 if 语句之前。您可能正确设置了新值，只是没有保存。问题可能就出在这个疏忽上。
The line
[context save:&error];is before the if statements.You may be setting the new value properly, just not saving. The problem might just be this oversight.