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I'm a complete newbie when it comes to iOS programming and much less Core Data. It's rather non-intuitive for me, as I really came into my own with programming with MATLAB, which I guess is more of a 'scripting' language.
At any rate, my problem is that I had no idea what I had to do to create a…
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I have problems, when i install app from Xcode all works but if I build app and install it from iTunes I have an error with the database at launch.
This happens only than i have changes in the core data model and need to migrate to a new version.
At first launch at crashes with message:
Thread 0:
0…
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My app makes updates in background thread then saves context changes.
And in main context there is a table view that works with NSFetchedResultsController.
For some time updates work correctly, but then exception is thrown.
To check this I've added NSLog(@"%@", [self.controller fetchedObjects]); to…
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Hello
Currently I have an entity named "Events" in a CoreData app. "Events" has one string property named "eventName".
In the -(void)viewDidLoad I am trying to Fetch all the "Events" objects and load their "eventName" by alphabetical order into a UIPickerView.
The ultimate end goal is through…
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Hi guys, long time reader, first time poster.
(A link to this schema is located here)
http://www.weeshsoft.com/pix/DatabasePic.jpg
I'm trying to get all LanguageEntries from a database for a given category.categoryName and languageset.languageSetName e.g.
NSFetchRequest* fetchRequest = [[NSFetchRequest…
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I'm a complete newbie when it comes to iOS programming and much less Core Data. It's rather non-intuitive for me, as I really came into my own with programming with MATLAB, which I guess is more of a 'scripting' language.
At any rate, my problem is that I had no idea what I had to do to create a…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
I have problems, when i install app from Xcode all works but if I build app and install it from iTunes I have an error with the database at launch.
This happens only than i have changes in the core data model and need to migrate to a new version.
At first launch at crashes with message:
Thread 0:
0…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
My app makes updates in background thread then saves context changes.
And in main context there is a table view that works with NSFetchedResultsController.
For some time updates work correctly, but then exception is thrown.
To check this I've added NSLog(@"%@", [self.controller fetchedObjects]); to…
>>> More
-
as seen on Stack Overflow
- Search for 'Stack Overflow'
I'm have an issue where i'm updating a many-to-many relationship in a background thread, which works fine in that threa, but when I send the object back to the main thread the changes do not show. If I close the app and reopen the data is saved fine and the changes show on the main thread. Also using…
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I know this question has been asked before, and I took a look at the answer to this question. However, I'm still confused as to how to implement reordering with a UITableView in a Core Data project. What I know is that I need to have a "displayOrder" attribute in my Entity to track the order of items…
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