category :
@property (nonatomic, assign) NSInteger Id;
@property (nonatomic, strong) NSString* title;

comment :
@property (nonatomic, strong) NSString* name;
@property (nonatomic, strong) NSDate* date;
@property (nonatomic, strong) NSString* content;

post :
@property (nonatomic, assign) NSInteger Id;
@property (nonatomic, strong) NSString* title; x
@property (nonatomic, strong) NSString* author;
@property (nonatomic, strong) NSString* url;
@property (nonatomic, strong) NSArray* categories;
@property (nonatomic, strong) NSString* excerpt; x
@property (nonatomic, strong) NSString* imageUri; x
@property (nonatomic, strong) NSString* content;
@property (nonatomic, strong) NSDate* date;
@property (nonatomic, strong) NSArray* comments;

- (id)initFromNSDictionary:(NSDictionary*)postDic;
- (id)initFromCustomNSDictionary:(NSDictionary*)postDic;

requester :
+ (Requester*)sharedRequester;
- (void)downloadPostsWithJSONMethod:(NSString*)JSONMethod parameter:(NSString*)param page:(NSInteger)page viewController:(NewsViewController*)viewController;
- (void)downloadCategoriesIntoViewController:(MenuViewController*)viewController;
- (void)downloadImageFromURI:(NSString*)uri intoImage:(UIImageView*)imagev;
- (NSString*)extractImageURIFromPost:(id)post;
-(void) addCommentOnPostId:(NSInteger)postId by:(NSString*)name withEmail:(NSString*)email andContent:(NSString*)content;