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coredata NSFetchRequest one to many relationship Relationship fault on managed object


coredata NSFetchRequest one to many relationship Relationship fault on managed object

By : Sun Mio
Date : November 21 2020, 07:31 AM
help you fix your problem It's a normal behaviour for CoreData. You should read Apple Documentation. There you can read about fault objects for CoreData. In two words - fault means that CoreData has this object but know (for some reason CoreData won't print you all fields of the object). In order to see all vields you should do this:
code :
[categoRequest setReturnsObjectsAsFaults:NO];


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Fetch fault relationship object in CoreData using setRelationshipKeyPathsForPrefetching

Fetch fault relationship object in CoreData using setRelationshipKeyPathsForPrefetching


By : Aditya Pawar
Date : March 29 2020, 07:55 AM
I hope this helps . It will return a fault if B is empty. Since your not seeing the code inside of your for loop then it is a strong bet that it is empty.
CoreData Relationship - Update object in relationship

CoreData Relationship - Update object in relationship


By : Billy Dkid
Date : March 29 2020, 07:55 AM
Hope that helps This exception is typically thrown when the object you are referencing has been removed from the persistent store. An example that could generate this is when you have a reference to an object i.e. through a tableView, etc. and you delete the object then try to reference it's properties or relationships. A more obscure case is that your cache has become corrupted and you need to purge that. If you share code perhaps we can pinpoint the problem.
CoreData Father, mother children relationship, Can a CoreData subclass have a same relationship with two subclasses?

CoreData Father, mother children relationship, Can a CoreData subclass have a same relationship with two subclasses?


By : Ravi Bandaru
Date : March 29 2020, 07:55 AM
hope this fix your issue If you are using CoreData you should know, that it is a rapper for SQLite, so you need to make your relationsships like you would do in SQL. Person "child" is a n:1 realtion to father and to mother. Model a new Entity for instance MotherToChild where you could do the mapping like normalization in SQL.
Relationship fault in Coredata

Relationship fault in Coredata


By : Nishanth Mullangi
Date : March 29 2020, 07:55 AM
To fix this issue Your data model seems to have a relationship defined from University to Student, but no inverse relationship from Student to University. You should (almost) always set an inverse relationship. In your case CoreData assumes that each Student is related to only one University. So each iteration through the loop, where you assign Students to a University, they are removed from their previous University.
If you want Students to belong to more than one University, create a to-many inverse for the relationship.
CoreData - NSFetchRequest AND Filter On Child Relationship Entities

CoreData - NSFetchRequest AND Filter On Child Relationship Entities


By : Xeoni Ionus
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Ok, say I have many entities of type "Office" and it has a relationship called "employees" which is a to-many relationship containing "Employee" objects. "Employee" has an attribute called "lastName". , You want a SUBQUERY in your predicate.
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