core-data

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Is there a Notification when CoreData finished reading data from disk?

I have a Mac (not document) app, that uses CoreData. When launching the app, it reads the data stored on the filesystem.[详细]

2023-04-11 08:16 分类：问答
Searching within a folder structure in Core Data

I have a Core Data model co开发者_StackOverflow中文版nsisting of folders and items. A folder may contain either subfolders or items. Each item has a \"Folder\" relationship. Each folder has a \"Parent[详细]

2023-04-11 08:15 分类：问答
CORE DATA Many to Many relationship. How to update or set relationship?

I have 2 entities Locations and Items. Many to many relationship. So each item can have multiple locations and any location can have multiple items.[详细]

2023-04-11 05:50 分类：问答
Core Data: when is deleteObject: done?

I have a problem using a core data model in a table view. In the table view\'s commitEditingStyle: delegate method I first delete the model\'s object and then the corresponding row in the table view,[详细]

2023-04-11 02:53 分类：问答
NSSortDescriptor and to-many relationships

I\'m working with an NSFetchedResultsController to show data in a UITableView. I have a to many relationship which looks something like this:[详细]

2023-04-11 01:34 分类：问答
What is the best way to parse an XML in background using NSTimer

I need to a开发者_如何学编程synchronously parse an XML in a regular interval so that when the user reloads the UITableView using \"PullToReload\" it loads the updated values. My bet is using NSTimer..[详细]

2023-04-11 01:31 分类：问答
Migrating complex core data model

I have a couple of questions about core data model migration. I have a pretty complex data model with a couple cases of entity inheritance. I was going to make some changes to the data model in a new[详细]

2023-04-10 23:37 分类：问答
adding a field to database without crashing the existing appstore app

I have a published app in the appstore. Recent changes to the app require me to add an extra field in the 开发者_如何转开发CoreData db.[详细]

2023-04-10 22:48 分类：问答
Core data delegate saving pattern

I am using CoreData in iOS. I have a modal AddViewController, with a RootViewController as the delegate.[详细]

2023-04-10 20:09 分类：问答
what is wrong with this UITableView code, where I'm using pass-by-reference to update a core data config record?

I have core data configuration in my iPhone app, and how I\'m currently passing the configuration to the view that allows a user to EDIT the data, is via passing the core data object by reference.In f[详细]

2023-04-10 19:33 分类：问答