Blog Code: NSData from OData

NSDate+OData.h

#import <Foundation/Foundation.h>
 
@interface NSDate (OData)
 
- (id)initWithODataString:(NSString *)dateString;
- (NSString *)toODataQueryFormat;
 
+ (NSDate *)dateFromString:(NSString *)dateString;
 
@end

NSDate+OData.m

#import "NSDate+OData.h"
 
@implementation NSDate (OData)
 
- (id)initWithODataString:(NSString *)dateString
{
    return [[NSDate dateFromString:dateString] retain];
}
 
- (NSString *)toODataQueryFormat
{
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss"];
 
    NSString *formattedDate = [formatter stringFromDate:self];
    [formatter release];
 
    return formattedDate;
}
 
+ (NSDate *)dateFromString:(NSString *)dateString
{
    NSInteger startIndex = [dateString rangeOfString:@"("].location;
    NSInteger endIndex = [dateString rangeOfString:@")"].location - startIndex;
    long long ticks = [[dateString substringWithRange:NSMakeRange(startIndex + 1, endIndex)] longLongValue];
 
    NSDate *date = [NSDate dateWithTimeIntervalSince1970:(ticks / 1000)];
    return date;
}
 
@end