nssortdescriptor

I have a table view that shows contacts sorted by alphabetic ordering and divide it to sections. i am using - NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:[dataSource keyName] ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; then for contacts without name i am using # sign as their first letter so all of them will be grouped in one group. everything is great. the only thing i want is to push the # section to the end of the table, as for now it shows in the beginning of it. any ideas? thanks in advance shani The best

In my Xcode project I have the following classes: Address @interface LDAddress : NSObject{ NSString *street; NSString *zip; NSString *city; float latitude; float longitude; } @property (nonatomic, retain) NSString *street; @property (nonatomic, retain) NSString *zip; @property (nonatomic, retain) NSString *city; @property (readwrite, assign, nonatomic) float latitude; @property (readwrite, assign, nonatomic) float longitude; @end Location @interface LDLocation : NSObject{ int locationId; NSString *name; LDAddress *address; } @property (readwrite, assign, nonatomic) int locationId; @property

My Requirement: I have this straight forward requirement of listing names of people in alphabetical order in a Indexed table view with index titles being the starting letter of alphabets (additionally a search icon at the top and # to display misc values which start with a number and other special characters). What I have done so far: 1. I am using core data for storage and "last_name" is modelled as a String property in the Contacts entity 2.I am using a NSFetchedResultsController to display the sorted indexed table view. Issues accomplishing my requirement: 1. First up, I couldn't get the

This question already has answers here : How to sort NSMutableArray of date objects (3 answers) I have an array of class A objects, let it be detailsArray. Class A has date, name as properties. Can any one suggest a good method to sort this array based on date? How can I use NSSortDescriptor to sort this array? I know sorting array of dictionary using NSSortDescriptor ... Any help is greatly appreciated..... Nick C NSSortDescriptor *sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"date" ascending:NO]; NSArray *sortedArray = [detailsArray sortedArrayUsingDescriptors:@[sortDescriptor]]

I have saved data into db using CoreData. I need to fetch data from my table in same order that it was saved. Inside table it is ordered by Z_PK - hidded CoreData key. How can I create such sort descriptor. If I use fetch request without sort descriptors my data objects have wrong order. Anything not exposed to you by the Core Data framework is an implementation detail. The fact that Z_PK exists, and currently suits your purposes, cannot be relied upon. If creation/save order is important to your model, then it should be included in your model. There's really nothing else to it. There is no

I would like to construct a NSPredicate or NSSortDescriptor (Core Data search) that is based on the content of an array. The array will consists of userId:s in the right order: [1, 2, 5, 3]; I would like to present the result for my NSFetchedResultsController in the same order. So I will: Get the right users (I have done this) Sort the list of users based on my sorted array with userId s. Is this possible to do, and how can I do it? Martin R I think that is not possible. Sorting the results of a fetch request (for a SQLite-based store) is done on the SQLite level, and can use only persistent

I'm trying to sort my NSFetchRequest result using a NSSortdescriptor using a key pointing to a NSDate value. My fetch results come out totally random for no clear reason. The NSManagedObjectContext I'm using is updated with a save from a nested child context created on a subclass of NSOperation. I know all this is done successfully because I can get all the data needed from the parent (main) context. Fetching from it just wont sort on date! Strange thing is; predicates for selecting the entities (called "Tweet") between two dates works just fine! Here's some code to illustrate my problem:

App has contentid coming in as a number string from a json file: let contentid: AnyObject! = jsonFeed["contentid"] let stream:Dictionary = [ "contentId": contentid as! String, ] It is later saved to [NSManagedObject] with: var articles = [NSManagedObject]() let entity = NSEntityDescription.entityForName("Article", inManagedObjectContext: managedContext) let article = NSManagedObject(entity: entity!, insertIntoManagedObjectContext: managedContext) article.setValue(stream["contentId"], forKey: "contentid") articles.append(article) Finally, I use NSSortDescriptor to have Core Data return entries