SCSArticleQueryResultsControllerDelegate Protocol Reference


                    
                    
                    -articleQueryWillChangeContent:

Message sent to the delegate when content changes will be made.

Declaration

Objective-C

- (void)articleQueryWillChangeContent:
    (nonnull SCSArticleQueryResultsController *)controller;

Swift

optional func articleQueryWillChangeContent(_ controller: SCSArticleQueryResultsController)

Parameters


                                controller

The article query results controller.


                    
                    
                    -articleQueryDidChangeContent:

Message sent to the delegate when content changes have been completed.

Declaration

Objective-C

- (void)articleQueryDidChangeContent:
    (nonnull SCSArticleQueryResultsController *)controller;

Swift

optional func articleQueryDidChangeContent(_ controller: SCSArticleQueryResultsController)

Parameters


                                controller

The article query results controller.


                    
                    
                    -articleQuery:didReloadWithError:

Indicates that the controller reloaded its contents entirely. If the error property is nonnull, then it indicates that an error occurred in the process.

Declaration

Objective-C

- (void)articleQuery:(nonnull SCSArticleQueryResultsController *)controller
    didReloadWithError:(nullable NSError *)error;

Swift

optional func articleQuery(_ controller: SCSArticleQueryResultsController, didReloadWithError error: Error?)

Parameters

`controller`	The article query results controller.
`error`	The error that occurred, or `nil` if no error was received.


                    
                    
                    -articleQuery:article:insertedAtIndex:

Sent to the delegate when an article is inserted.

An article may be inserted at an index when it is first found, or when a reload occurs and new articles are found.

Declaration

Objective-C

- (void)articleQuery:(nonnull SCSArticleQueryResultsController *)controller
             article:(nonnull SCSArticle *)article
     insertedAtIndex:(NSUInteger)index;

Swift

optional func articleQuery(_ controller: SCSArticleQueryResultsController, article: SCSArticle, insertedAt index: UInt)

Parameters

`controller`	The article query results controller.
`article`	The article that was inserted.
`index`	The index where the article was inserted.


                    
                    
                    -articleQuery:article:deletedAtIndex:

Sent to the delegate when an article is deleted.

Note that the article itself may not have been deleted; this merely means that the article was removed from the fetched list.

Declaration

Objective-C

- (void)articleQuery:(nonnull SCSArticleQueryResultsController *)controller
             article:(nonnull SCSArticle *)article
      deletedAtIndex:(NSUInteger)index;

Swift

optional func articleQuery(_ controller: SCSArticleQueryResultsController, article: SCSArticle, deletedAt index: UInt)

Parameters

`controller`	The article query results controller.
`article`	The article that was deleted.
`index`	The index where the article was deleted.


                    
                    
                    -articleQuery:article:updatedAtIndex:

Sent to the delegate when an article is updated.

Declaration

Objective-C

- (void)articleQuery:(nonnull SCSArticleQueryResultsController *)controller
             article:(nonnull SCSArticle *)article
      updatedAtIndex:(NSUInteger)index;

Swift

optional func articleQuery(_ controller: SCSArticleQueryResultsController, article: SCSArticle, updatedAt index: UInt)

Parameters

`controller`	The article query results controller.
`article`	The article that was updated.
`index`	The index of the article.


                    
                    
                    -articleQuery:article:movedFromIndex:toIndex:

Sent to the delegate when an article is moved.

An article may be moved if something influencing its sort criteria changes after a reload.

Declaration

Objective-C

- (void)articleQuery:(nonnull SCSArticleQueryResultsController *)controller
             article:(nonnull SCSArticle *)article
      movedFromIndex:(NSUInteger)oldIndex
             toIndex:(NSUInteger)newIndex;

Swift

optional func articleQuery(_ controller: SCSArticleQueryResultsController, article: SCSArticle, movedFrom oldIndex: UInt, to newIndex: UInt)

Parameters

`controller`	The article query results controller.
`article`	The article that was moved.
`oldIndex`	The index where the article existed prior to this update.
`newIndex`	The new index of the article.


                    
                    
                    -articleQuery:willBeginLoadingPage:

Sent to the delegate when a given page of articles beings loading.

Declaration

Objective-C

- (void)articleQuery:(nonnull SCSArticleQueryResultsController *)controller
    willBeginLoadingPage:(NSUInteger)page;

Swift

optional func articleQuery(_ controller: SCSArticleQueryResultsController, willBeginLoadingPage page: UInt)

Parameters

`controller`	The article query results controller.
`page`	The page number being loaded.


                    
                    
                    -articleQuery:didFinishLoadingPage:error:

Sent to the delegate when a given page of articles finishes loading.

Declaration

Objective-C

- (void)articleQuery:(nonnull SCSArticleQueryResultsController *)controller
    didFinishLoadingPage:(NSUInteger)page
                   error:(nullable NSError *)error;

Swift

optional func articleQuery(_ controller: SCSArticleQueryResultsController, didFinishLoadingPage page: UInt, error: Error?)

Parameters

`controller`	The article query results controller.
`page`	The page number being loaded.
`error`	The error that occurred, or `nil` if no error was received.