Core data do not fetch record - iphone

Question

i added website field in core data after adding other attributes to xcdatamodel, and i am saving this attribute like this
- (void)fetchandSaveGWTGsSince:(NSString *)since
{
NSString *completeURL = [NSString stringWithFormat:#"%#api.php?action=get_all_gwtgs&sinceDate=%#", BASE_URL, since];
NSURL *url = [NSURL URLWithString:completeURL];
// self.loggingEnable = NO;
if (self.loggingEnable == YES)
{
NSLog(#"%#", [NSString stringWithFormat:#"%i", [since integerValue]-18000]);
NSLog(#"%#", since);
NSLog(#"%#", [[NSDate dateWithTimeIntervalSince1970:(NSTimeInterval)[since integerValue]] description]);
NSLog(#"%#", [[NSDate dateWithTimeIntervalSince1970:((NSTimeInterval)[since integerValue])-18000] description]);
NSLog(#"%#", completeURL);
}
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
request.timeoutInterval = REQUEST_TIMEOUT;
[AFJSONRequestOperation addAcceptableContentTypes:[NSSet setWithObject:#"text/html"]];
AFJSONRequestOperation *operation =
[AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON)
{
NSDictionary *resDict = (NSDictionary *)JSON;
if (self.loggingEnable == YES)
{
NSLog(#"Response GWTGs : %#", resDict);
}
if ([[resDict objectForKey:#"status"] isEqualToString:#"success"])
{
NSArray *data = [[resDict objectForKey:#"data"] objectAtIndex:0];
NSManagedObjectContext *context = [[Common apd] managedObjectContext];
if ([data count] > 0)
{
[data enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop)
{
NSDictionary *gwtgDict = (NSDictionary *)obj;
if ([gwtgDict objectForKey:#"gwtg_id"])
{
NSArray *locationInfos = [self getGWTGsWithGWTG_ID:[gwtgDict objectForKey:#"gwtg_id"]];
if ([locationInfos count] > 0)
{
for (Location *location in locationInfos)
{
[context deleteObject:location];
NSError *error = nil;
if (![context save:&error]) {
// Handle the error.
if (self.loggingEnable == YES)
{
NSLog(#"error deleting gwtg : %#", [location description]);
}
}
}
}
}
}];
}
[data enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop)
{
NSDictionary *gwtgInfo = (NSDictionary *)obj;
/*
gwtg_status = 0 => Inactive Record
gwtg_status = 1 => New Record/Active Record
gwtg_status = 2 => Updated Record
gwtg_status = 3 => Deleted Record
*/
if ([[gwtgInfo objectForKey:#"gwtg_status"] intValue] != 3)
{
GWTG *gwtg = [NSEntityDescription insertNewObjectForEntityForName:#"GWTG" inManagedObjectContext:context];
gwtg.gwtg_id = ([[gwtgInfo objectForKey:#"gwtg_id"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"gwtg_id"];
NSData *celData = [NSData dataWithBase64EncodedString:[gwtgInfo objectForKey:#"celebrity_name"]];
NSString *celName = [[NSString alloc] initWithData:celData encoding:NSStringEncodingConversionAllowLossy];
gwtg.celebrity_name = ([celName isKindOfClass:[NSNull class]]) ? #"" : celName;
gwtg.location_id = ([[gwtgInfo objectForKey:#"location_id"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"location_id"];
NSData *loc_cityData = [NSData dataWithBase64EncodedString:[gwtgInfo objectForKey:#"location_city"]];
NSString *loc_cityName = [[NSString alloc] initWithData:loc_cityData encoding:NSStringEncodingConversionAllowLossy];
gwtg.location_city = ([loc_cityName isKindOfClass:[NSNull class]]) ? #"" : loc_cityName;
NSData *cityData = [NSData dataWithBase64EncodedString:[gwtgInfo objectForKey:#"city"]];
NSString *cityName = [[NSString alloc] initWithData:cityData encoding:NSStringEncodingConversionAllowLossy];
gwtg.city = ([cityName isKindOfClass:[NSNull class]]) ? #"" : cityName;
NSData *stateData = [NSData dataWithBase64EncodedString:[gwtgInfo objectForKey:#"state"]];
NSString *stateName = [[NSString alloc] initWithData:stateData encoding:NSStringEncodingConversionAllowLossy];
gwtg.state = ([stateName isKindOfClass:[NSNull class]]) ? #"" : stateName;
NSData *countryData = [NSData dataWithBase64EncodedString:[gwtgInfo objectForKey:#"country"]];
NSString *countryName = [[NSString alloc] initWithData:countryData encoding:NSStringEncodingConversionAllowLossy];
gwtg.country = ([countryName isKindOfClass:[NSNull class]]) ? #"" : countryName;
gwtg.a_consuming = ([[gwtgInfo objectForKey:#"a_consuming"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"a_consuming"];
gwtg.a_playing = ([[gwtgInfo objectForKey:#"a_playing"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"a_playing"];
gwtg.a_lodging = ([[gwtgInfo objectForKey:#"a_lodging"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"a_lodging"];
gwtg.a_shopping = ([[gwtgInfo objectForKey:#"a_shopping"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"a_shopping"];
gwtg.a_recommending = ([[gwtgInfo objectForKey:#"a_recommending"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"a_recommending"];
gwtg.w_g_here = ([[gwtgInfo objectForKey:#"w_g_here"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"w_g_here"];
NSData *locData = [NSData dataWithBase64EncodedString:[gwtgInfo objectForKey:#"location_name"]];
NSString *locName = [[NSString alloc] initWithData:locData encoding:NSStringEncodingConversionAllowLossy];
gwtg.location_name = ([locName isKindOfClass:[NSNull class]]) ? #"" : locName;
//location_address, we_go_here, credit
NSData *locAdData = [NSData dataWithBase64EncodedString:[gwtgInfo objectForKey:#"location_address"]];
NSString *locAdName = [[NSString alloc] initWithData:locAdData encoding:NSStringEncodingConversionAllowLossy];
gwtg.location_address = ([locAdName isKindOfClass:[NSNull class]]) ? #"" : locAdName;
gwtg.location_phone = ([[gwtgInfo objectForKey:#"location_phone"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"location_phone"];
gwtg.location_zip_code = ([[gwtgInfo objectForKey:#"location_zip_code"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"location_zip_code"];
NSData *wghData = [NSData dataWithBase64EncodedString:[gwtgInfo objectForKey:#"we_go_here"]];
NSString *wghName = [[NSString alloc] initWithData:wghData encoding:NSStringEncodingConversionAllowLossy];
gwtg.we_go_here = ([wghName isKindOfClass:[NSNull class]]) ? #"" : wghName;
gwtg.wgh_date = ([[gwtgInfo objectForKey:#"wgh_date"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"wgh_date"];
NSData *creData = [NSData dataWithBase64EncodedString:[gwtgInfo objectForKey:#"credit"]];
NSString *creName = [[NSString alloc] initWithData:creData encoding:NSStringEncodingConversionAllowLossy];
gwtg.credit = ([creName isKindOfClass:[NSNull class]]) ? #"" : creName;
NSData *webSite_Data = [NSData dataWithBase64EncodedString:[gwtgInfo objectForKey:#"website"]];
NSString *add_website = [[NSString alloc] initWithData:webSite_Data encoding:NSStringEncodingConversionAllowLossy];
gwtg.website = ([add_website isKindOfClass:[NSNull class]]) ? #"" : add_website;
gwtg.gwtg_status = ([[gwtgInfo objectForKey:#"gwtg_status"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"gwtg_status"];
gwtg.gwtg_isactive = ([[gwtgInfo objectForKey:#"gwtg_isactive"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"gwtg_isactive"];
gwtg.addeddate = ([[gwtgInfo objectForKey:#"addeddate"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"addeddate"];
gwtg.modifieddate = ([[gwtgInfo objectForKey:#"modifieddate"] isKindOfClass:[NSNull class]]) ? #"" : [gwtgInfo objectForKey:#"modifieddate"];
if (self.loggingEnable == YES)
{
NSLog(#"----Location----");
NSLog(#"%#", gwtg.gwtg_id);
NSLog(#"%#", gwtg.celebrity_name);
NSLog(#"%#", gwtg.location_id);
NSLog(#"%#", gwtg.city);
NSLog(#"%#", gwtg.state);
NSLog(#"%#", gwtg.country);
NSLog(#"%#", gwtg.a_consuming);
NSLog(#"%#", gwtg.a_playing);
NSLog(#"%#", gwtg.a_lodging);
NSLog(#"%#", gwtg.a_shopping);
NSLog(#"%#", gwtg.a_recommending);
NSLog(#"%#", gwtg.w_g_here);
NSLog(#"%#", gwtg.location_name);
NSLog(#"%#", gwtg.location_address);
NSLog(#"%#", gwtg.location_phone);
NSLog(#"%#", gwtg.location_zip_code);
NSLog(#"%#", gwtg.we_go_here);
NSLog(#"%#", gwtg.wgh_date);
NSLog(#"%#", gwtg.credit);
NSLog(#"%#", gwtg.website);
NSLog(#"%#", gwtg.gwtg_status);
NSLog(#"%#", gwtg.addeddate);
NSLog(#"%#", gwtg.modifieddate);
NSLog(#"%#", gwtg.gwtg_isactive);
}
NSError *error;
if (![context save:&error]) {
NSLog(#"Whoops, couldn't save: %#", [error localizedDescription]);
}
}
}];
if ([[NSUserDefaults standardUserDefaults] objectForKey:LAST_TIME_GWTG_UPDATED])
{
[[NSUserDefaults standardUserDefaults] removeObjectForKey:LAST_TIME_GWTG_UPDATED];
}
NSDate *date = [NSDate date];
NSLog(#"date last time : %#", [data description]);
[[NSUserDefaults standardUserDefaults] setObject:[NSString stringWithFormat:#"%.f", [date timeIntervalSince1970]] forKey:LAST_TIME_GWTG_UPDATED];
[[NSUserDefaults standardUserDefaults] synchronize];
[[NSNotificationCenter defaultCenter] postNotificationName:kNotificationRequestFinished object:nil userInfo:nil];
}
else
{
// [Common showAlertWithTitle:#"Warning" message:[resDict objectForKey:#"message"]];
if ([[NSUserDefaults standardUserDefaults] objectForKey:LAST_TIME_GWTG_UPDATED])
{
}
else
{
[[NSUserDefaults standardUserDefaults] setObject:[NSString stringWithFormat:#"0"] forKey:LAST_TIME_GWTG_UPDATED];
[[NSUserDefaults standardUserDefaults] synchronize];
}
}
}
failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON)
{
if (self.loggingEnable == YES)
{
NSLog(#"error %#", [error description]);
}
[Common showAlertWithTitle:#"Error Retrieving" message:[NSString stringWithFormat:#"%#",[error localizedDescription]]];
if ([[NSUserDefaults standardUserDefaults] objectForKey:LAST_TIME_GWTG_UPDATED])
{
}
else
{
[[NSUserDefaults standardUserDefaults] setObject:[NSString stringWithFormat:#"0"] forKey:LAST_TIME_GWTG_UPDATED];
[[NSUserDefaults standardUserDefaults] synchronize];
}
}];
[operation start];
}
and i am getting website url like this, but it always come empty,
NSString *urlString = [NSString stringWithFormat:#"%#", _gwtgDO.website];
NSURL *url = [NSURL URLWithString:[urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
[[UIApplication sharedApplication] openURL:url];
why it is always empty although i am getting website link from server correctly? is this due to reason that i added attribute later? what should i do now?

Answer 1

You are passing NSStringEncodingConversionOptions instead of NSStringEncoding. I suppose you want NSString *add_website = [[NSString alloc] initWithData:webSite_Data encoding:NSUTF8StringEncoding]; for UTF-8 encoding, for example.
More about the encodings here: https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html