NULL Checking For Webservices

#pragma mark ======== Null Checking for web services ===============

+(id)checkForNull:(id)value

{

    NSString *valueString = [NSString stringWithFormat:@"%@",value];

    

    id objectString = @"";

    

    if (![valueString isEqualToString:@"(null)"] && ![valueString isEqualToString:@"<null>"] && valueString.length != 0)

        return value;

    

    return objectString;

}

EX

 [localTrendsData setPhone_number:[self checkForNull:[currentLocalTrends valueForKey:@"phone_number"]]];

            

            [localTrendsData setUser_id:[self checkForNull:[currentLocalTrends valueForKey:@"user_id"]]];

            

            [localTrendsData setCategoryNameArray:[self checkForNull:[currentLocalTrends valueForKey:@"categories"]]];