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This article highlights common mistakes developers make with Core Data.It also touches on Core Data’s benefits, terminology, versioning, migration, performance, and i Cloud integration pitfalls and how you can avoid them.Poor performance, for example, may not be a Core Data problem, but instead due to a failure to observe standard Cocoa techniques of memory management or resource conservation.
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Without potentially fetching large numbers of objects, possibly without reason, there is no way for Core Data to efficiently clean up the relationships to the object.
Keep in mind that a Core Data object graph is directional.
Let’s focus on the code of commit Editing Style method for deleting the managed object from database.
Like saving data, we first grab the manage object context.
Core Data will try to realize the faulted managed object but will fail to do so because the object has been deleted from the store.
That is, there is no longer an object with the same global ID in the store.
Core Data builds on functionality provided by other parts of Cocoa.
When diagnosing a problem with an application that uses Core Data, take care to distinguish between problems that are specific to Core Data and those that stern from an error with another framework or that are architecture-related.
However, we only showed you how to insert records into data store through Core Data API and left out the update & delete operations.Tags: Adult Dating, affair dating, sex dating