Querying via managed object's context #80

New Issue

adam · 2025-12-29T15:23:48+01:00

adam commented

2025-12-29 15:23:48 +01:00

Originally created by @a13xb on GitHub (Sep 9, 2016).

It would be nice to be able to do a query through managed object's context, so you can filter and search object's relationships without having to pass a data stack explicitly or using the default global data stack.

For example:

class Post : NSManagedObject {
    @NSmanaged var comments: Set<Comment>
    var commentsByDate {
        managedObjectContext.fetchAll(...)
    }
    var commentsByVotes {
        managedObjectContext.fetchAll(...)
    }
}

But right now all querying methods on NSManagedObjectContext are marked as internal. Would you be open to making them public?

Originally created by @a13xb on GitHub (Sep 9, 2016). It would be nice to be able to do a query through managed object's context, so you can filter and search object's relationships without having to pass a data stack explicitly or using the default global data stack. For example: ``` swift class Post : NSManagedObject { @NSmanaged var comments: Set<Comment> var commentsByDate { managedObjectContext.fetchAll(...) } var commentsByVotes { managedObjectContext.fetchAll(...) } } ``` But right now all querying methods on `NSManagedObjectContext` are marked as internal. Would you be open to making them public?

adam added the enhancement fixed labels 2025-12-29 15:23:48 +01:00

adam closed this issue

2025-12-29 15:23:48 +01:00

adam commented

2025-12-29 15:23:48 +01:00

@JohnEstropia commented on GitHub (Sep 10, 2016):

It was a conscious decision to not expose NSManagedObjectContext to ensure transaction integrity. I'll see if there's a way to take advantage of Swift 3's new private behavior so only transaction and datastack extensions can access NSManagedObjectContext's fetch methods

@JohnEstropia commented on GitHub (Sep 10, 2016): It was a conscious decision to not expose NSManagedObjectContext to ensure transaction integrity. I'll see if there's a way to take advantage of Swift 3's new `private` behavior so only transaction and datastack extensions can access NSManagedObjectContext's fetch methods

adam commented

2025-12-29 15:23:48 +01:00

@JohnEstropia commented on GitHub (Nov 21, 2016):

This has been implemented in b230ed6400

See the new FetchableSource and QueryableSource protocols

@JohnEstropia commented on GitHub (Nov 21, 2016): This has been implemented in https://github.com/JohnEstropia/CoreStore/commit/b230ed6400b2ca38533d597b9f514e0f0bfc7871 See the new `FetchableSource` and `QueryableSource` protocols

Sign in to join this conversation.

Branches Tags

develop

master

prototype/concurrency

minIOS13

prototype/containers

transactionSourceTracking

prototype/swiftui

minIOS11

swift5_3

prototype/propertyWrapperFields

prototype/propertyWrappers

prototype/propertyWrapper

Swift5

throwables

prototype/Swift_4_1

prototype/Swift_4_0

prototype/Swift_3_2

prototype/queryBuilders

temp/develop

corestore4_develop

prototype/mainContextToPSC

master_ios_7_to_9

swift_2_3

gh-pages

_corespotlight-test

1 Participants

Notifications

Due Date

No due date set.

Dependencies

No dependencies set.

Reference: starred/CoreStore#80