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SLazeKit
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[0.1.0] Add NSManagedObjectContext helper method

This commit is contained in:
Shial 2017-12-13 14:34:31 +11:00
parent a27cdecc8d
commit 7e71f8720e
3 changed files with 20 additions and 28 deletions
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25
Sources/SLazeKit/Protocols/EntityMapping.swift
View File

@ -9,10 +9,9 @@ public protocol EntityMapping {
func fillObject(with model: NSManagedObject)
}
@available(iOS 10.0, *)
extension EntityMapping {
func map() throws -> NSManagedObject? {
guard let context = Self.persistentContainer?.newBackgroundContext() else { return nil }
guard let context = SLazeKit.newBackgroundContext() else { return nil }
let model: NSManagedObject
if let attribiutes = idAttributes {
model = try Self.entityType.find(context, by: attribiutes) ?? Self.entityType.init(context: context)
@ -23,16 +22,6 @@ extension EntityMapping {
context.performAndWait { context.commit() }
return model
}
private func findObject(_ context: NSManagedObjectContext?) throws -> NSManagedObject? {
return try Self.entityType.find(context, by: idAttributes ?? [])
}
}
extension EntityMapping {
public func serialized<T: NSManagedObject>(_ context: NSManagedObjectContext?) throws -> T? {
return (try Self.entityType.find(context, by: idAttributes ?? [])) as? T
}
}
extension Array where Element: EntityMapping {
@ -40,3 +29,15 @@ extension Array where Element: EntityMapping {
return try flatMap({ try $0.serialized(context) })
}
}
extension EntityMapping {
private func findObject(_ context: NSManagedObjectContext?) throws -> NSManagedObject? {
return try Self.entityType.find(context, by: idAttributes ?? [])
}
public func serialized<T: NSManagedObject>(_ context: NSManagedObjectContext?) throws -> T? {
return (try Self.entityType.find(context, by: idAttributes ?? [])) as? T
}
}

19
Sources/SLazeKit/SLazeKit.swift
View File

@ -8,11 +8,6 @@ public enum HTTPMethod {
case GET, POST, PUT, PATCH, DELETE, COPY, HEAD, OPTIONS, LINK, UNLINK, PURGE, LOCK, UNLOCK, PROPFIND, VIEW
}
@available(iOS 10.0, *)
extension EntityMapping {
public static var persistentContainer: NSPersistentContainer? { return nil }
}
public class SLazeKit {
open class var basePath: String? { return nil }
open class var basePort: Int? { return nil }
@ -21,6 +16,8 @@ public class SLazeKit {
open class func setup(_ request: URLRequest) -> URLRequest { return request }
open class func handle(_ response: HTTPURLResponse?) {}
open class func newBackgroundContext() -> NSManagedObjectContext? { return nil }
}
//MARK: network tasks implementation
@ -40,9 +37,7 @@ extension SLazeKit {
if let data = data, error == nil {
do {
let object = try decoder.decode(T.self, from: data)
if #available(iOS 10.0, *) {
try synchronize(object)
}
try synchronize(object)
handler(response as? HTTPURLResponse, object, nil)
} catch {
handler(response as? HTTPURLResponse, nil, error)
@ -176,12 +171,8 @@ extension SLazeKit {
urlComponents?.queryItems = queryItems
return urlComponents
}
}
//MARK: CoreData mapping support
extension SLazeKit {
@available(iOS 10.0, *)
fileprivate class func synchronize(_ obj: Any) throws {
private class func synchronize(_ obj: Any) throws {
if let array = obj as? [EntityMapping] {
array.forEach({_ = try? $0.map()})
} else {

4
Tests/SLazeKitTests/Models/Model.swift
View File

@ -109,7 +109,7 @@ extension Model {
do {
//Result is type of `[ModelResponse]` to return array of our CoreData models we need to serialize it.
//result?.serialized will return `[Model]`
models = try result?.serialized(ModelResponse.persistentContainer?.newBackgroundContext())
models = try result?.serialized(SLazeKit.newBackgroundContext())
} catch {
print(error)
}
@ -128,7 +128,7 @@ extension Model {
do {
//Result of type `ModelResponse` to return CoreData model we need to serialize it.
//result?.serialized will return `Model`
models = try result?.serialized(ModelResponse.persistentContainer?.newBackgroundContext())
models = try result?.serialized(SLazeKit.newBackgroundContext())
} catch {
print(error)
}