nspredicate

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Core Data Query, NSPredicate

I have an entity called \"Sessions\" and it contains an NSDate attr开发者_如何学运维ibute. What I want is to be able to query the core data model and get an array of the DAYS of the NSDates, without[详细]

2023-03-17 10:11 分类：问答
NSPredicate Format Equivalent to SQL query

I have two tables: table1 and table2. What woul开发者_JS百科d be the NSPredicate format equivalent to the following SQL query?[详细]

2023-03-16 15:07 分类：问答
Using @min,@max and etc inside a predicate?

Is it possible to use aggregate operator such as @min inside a predicate? BTW The predicate filters an array of objects.[详细]

2023-03-16 05:43 分类：问答
Problem with SUBQUERY to find max (last?) Date

I have two entities \'Times\' <*-> \'FileList\'. \'FileList\' - has relation \'whenDownload\', reverse relation from \'Times\' is \'wichFile\'.[详细]

2023-03-16 03:32 分类：问答
need help on a simple predicate to match any word in a string to a property

Let\'s say i want to let user search for my objects using a name property of the objects. I have no problem if the user only enters one word:[详细]

2023-03-16 00:21 分类：问答
Random entities from Core Data to-many relationship

I\'m trying to setup a core data model like this: User-> Friends-> Albums -> Pictures (Minus User, each of these is a to-many relationship)[详细]

2023-03-15 20:59 分类：问答
Core Data NSFetchedResultsController: Error when debugging on device (Unable to generate SQL for predicate)

i have a weird exeption when i debug my app on my device. debugging in simulator works as expected. i use core data for storing my data[详细]

2023-03-15 15:33 分类：问答
NSFetchRequest: fetch the object for which the predicate is true

I have the following fetch.I want to fetch the Session object for whic开发者_JS百科h the predicate is true.[详细]

2023-03-15 14:57 分类：问答
Searching for an id in Core Data

I am getting some unexpected behavior with CoreData and NSPredicate. In a large database population I have different Managed Objects relating to on开发者_C百科e-another. However, I have a problem with[详细]

2023-03-15 05:13 分类：问答
Trying to make a compond predicate. Not working.

I am trying to make a compound predicate for my core data search. So when the user enters text in the search bar, it will display results for anything that has that text in either the name, optionOne[详细]

2023-03-14 04:19 分类：问答