I am having the same issue described at this address http://www.cocoabuilder.com/archive/cocoa/288659-iphone-nsmanagedobjectcontext-save-doesn-crash-but-breaks-on-objc-exception-throw.html
I\'ve found documentation very limited and my problem solution nowhere. I need to add new entity (with relationship to existing one). Also add and rename some of attributes of existing entity.
I have the older version of the core data model of the released app. Now, in the next version of the app, I am migrating the core data model to new model. Is there a way to get the attribute values fr
I have a reasonably complex iPhone app that relies on an API to fetch data from a server and display it to the user.I have about 5 model classes that are used throughout the app - they simply extend N
I am trying to pull in a RSS fee开发者_C百科d and sort by pubDate. When I examine the \'updated\' property, most of the time it is correct and give me a proper date but when I try to convert from a se
I\'m trying to setup my NSFetchRequest to core data to retrieve the unique values for a specific attribute in an entity.i.e.
I am writi开发者_运维技巧ng a program that synchronizes with a server. Synchronization is run in foreground but using LRResty and delegates to get the responses. Randomly, while I run the synchronizat
What is a reason NOT to make a Core Data property indexed? From what I understand, searchable properties are supposed to be indexed, if it helps performance. If so, why isn\'t everything automatically
I\'ve read the manual and saw some tutorial, but still, I do not understand this point. If I use Core Data in my app, lets say I have an object that one of its properties (column in DB) is a type fie
I was wondering why 开发者_StackOverflowCoreData framework of iPhone does not provide the facility to delete objects from database in a group using NSPredicate. They have provided way to fetch data wi
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