I\'m working on a search feature in one of my Core Data based apps and I\'m trying to gather everyone\'s tips on search optimization to get it as fast as I possibly can. The search needs to be fast en
I\'m working on a coin app. Coins are presented to the user in a tableview, managed by Core Data. All the coin names begin with either \"19\" or \"20\". When I implement a section index on the table
I am trying to link a value that\'s already in category to the wod entity. Since I do want to call a new record for each record of wod for a category. Not sure how to do this. I was thinking of using
This one is baffling me: I have a core data set that I search/filter using the following code: NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
Does it hurt to execute an NSFetchRequest that retrieves a lot of objects, maybe around 3 ~ 5K? I understand Core Data uses something called \'faulting\' that ensures objects are not in memory until t
How do I make it so I only fetch results with the indicator == 1. (I have the indicator hooked up to a UISwitch on another view). so I want a table of titles, but only if the indicator is 1.
I\'m building an open-source clone of iPhone\'s native Messages app called AcaniChat on GitHub. I have a Conversation entity and a Message entity with a sentDate attribute. Each Conversation can have
I have a Client Entity and it has a to many relationship (entries) with Entry entity. Client Entity also has a to many relationship with an Invoice Entity (invoices).
How to write NSPredicate to fetch the rows that 开发者_JAVA技巧matches with values in the array? E.g:
I have a managed object with two dates: dateOne and dateTwo and I want to retrieve the dates where dateTwo is older than dateOne.