Files
CoreStore-JohnEstropia/Sources/Relationship.ToManyUnordered.swift

282 lines
12 KiB
Swift

//
// Relationship.ToManyUnordered.swift
// CoreStore
//
// Copyright © 2020 John Rommel Estropia
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
import CoreData
import Foundation
// MARK: - Deprecated
@available(*, deprecated, message: """
Legacy `Value.*`, `Transformable.*`, and `Relationship.*` declarations will soon be obsoleted. Please migrate your models and stores to new models that use `@Field.*` property wrappers. See: https://github.com/JohnEstropia/CoreStore?tab=readme-ov-file#new-field-property-wrapper-syntax
""")
extension RelationshipContainer {
public final class ToManyUnordered<D: CoreStoreObject>: ToManyRelationshipKeyPathStringConvertible, RelationshipProtocol {
public convenience init(
_ keyPath: KeyPathString,
deleteRule: DeleteRule = .nullify,
minCount: Int = 0,
maxCount: Int = 0,
versionHashModifier: @autoclosure @escaping () -> String? = nil,
renamingIdentifier: @autoclosure @escaping () -> String? = nil,
affectedByKeyPaths: @autoclosure @escaping () -> Set<String> = []) {
self.init(
keyPath: keyPath,
inverseKeyPath: { nil },
deleteRule: deleteRule,
minCount: minCount,
maxCount: maxCount,
versionHashModifier: versionHashModifier(),
renamingIdentifier: renamingIdentifier(),
affectedByKeyPaths: affectedByKeyPaths()
)
}
public convenience init(
_ keyPath: KeyPathString,
inverse: @escaping (D) -> RelationshipContainer<D>.ToOne<O>,
deleteRule: DeleteRule = .nullify,
minCount: Int = 0,
maxCount: Int = 0,
versionHashModifier: @autoclosure @escaping () -> String? = nil,
renamingIdentifier: @autoclosure @escaping () -> String? = nil,
affectedByKeyPaths: @autoclosure @escaping () -> Set<String> = []) {
self.init(
keyPath: keyPath,
inverseKeyPath: { inverse(D.meta).keyPath },
deleteRule: deleteRule,
minCount: minCount,
maxCount: maxCount,
versionHashModifier: versionHashModifier(),
renamingIdentifier: renamingIdentifier(),
affectedByKeyPaths: affectedByKeyPaths()
)
}
public convenience init(
_ keyPath: KeyPathString,
inverse: @escaping (D) -> RelationshipContainer<D>.ToManyOrdered<O>,
deleteRule: DeleteRule = .nullify,
minCount: Int = 0,
maxCount: Int = 0,
versionHashModifier: @autoclosure @escaping () -> String? = nil,
renamingIdentifier: @autoclosure @escaping () -> String? = nil,
affectedByKeyPaths: @autoclosure @escaping () -> Set<String> = []) {
self.init(
keyPath: keyPath,
inverseKeyPath: { inverse(D.meta).keyPath },
deleteRule: deleteRule,
minCount: minCount,
maxCount: maxCount,
versionHashModifier: versionHashModifier(),
renamingIdentifier: renamingIdentifier(),
affectedByKeyPaths: affectedByKeyPaths()
)
}
public convenience init(
_ keyPath: KeyPathString,
inverse: @escaping (D) -> RelationshipContainer<D>.ToManyUnordered<O>,
deleteRule: DeleteRule = .nullify,
minCount: Int = 0,
maxCount: Int = 0,
versionHashModifier: @autoclosure @escaping () -> String? = nil,
renamingIdentifier: @autoclosure @escaping () -> String? = nil,
affectedByKeyPaths: @autoclosure @escaping () -> Set<String> = []) {
self.init(
keyPath: keyPath,
inverseKeyPath: { inverse(D.meta).keyPath },
deleteRule: deleteRule,
minCount: minCount,
maxCount: maxCount,
versionHashModifier: versionHashModifier(),
renamingIdentifier: renamingIdentifier(),
affectedByKeyPaths: affectedByKeyPaths()
)
}
public var value: ReturnValueType {
get {
return Set(self.nativeValue.map({ D.cs_fromRaw(object: $0 as! NSManagedObject) }))
}
set {
self.nativeValue = NSSet(array: newValue.map({ $0.rawObject! }))
}
}
public var cs_keyPathString: String {
return self.keyPath
}
public typealias ObjectType = O
public typealias DestinationValueType = D
public typealias ReturnValueType = Set<DestinationValueType>
internal let keyPath: KeyPathString
internal let entityDescriptionValues: () -> RelationshipProtocol.EntityDescriptionValues
internal var rawObject: CoreStoreManagedObject?
internal var nativeValue: NSSet {
get {
Internals.assert(
self.rawObject != nil,
"Attempted to access values from a \(Internals.typeName(O.self)) meta object. Meta objects are only used for querying keyPaths and infering types."
)
return withExtendedLifetime(self.rawObject!) { (object) in
Internals.assert(
object.isRunningInAllowedQueue() == true,
"Attempted to access \(Internals.typeName(O.self))'s value outside it's designated queue."
)
return object.getValue(
forKvcKey: self.keyPath,
didGetValue: { ($0 as! NSSet?) ?? [] }
)
}
}
set {
Internals.assert(
self.rawObject != nil,
"Attempted to access values from a \(Internals.typeName(O.self)) meta object. Meta objects are only used for querying keyPaths and infering types."
)
return withExtendedLifetime(self.rawObject!) { (object) in
Internals.assert(
object.isRunningInAllowedQueue() == true,
"Attempted to access \(Internals.typeName(O.self))'s value outside it's designated queue."
)
Internals.assert(
object.isEditableInContext() == true,
"Attempted to update a \(Internals.typeName(O.self))'s value from outside a transaction."
)
object.setValue(
newValue,
forKvcKey: self.keyPath
)
}
}
}
internal var valueForSnapshot: Any? {
return Set(self.value.map({ $0.objectID() }))
}
private init(keyPath: KeyPathString, inverseKeyPath: @escaping () -> KeyPathString?, deleteRule: DeleteRule, minCount: Int, maxCount: Int, versionHashModifier: @autoclosure @escaping () -> String?, renamingIdentifier: @autoclosure @escaping () -> String?, affectedByKeyPaths: @autoclosure @escaping () -> Set<String>) {
self.keyPath = keyPath
self.entityDescriptionValues = {
let range = (Swift.max(0, minCount) ... maxCount)
return (
isToMany: true,
isOrdered: false,
deleteRule: deleteRule.nativeValue,
inverse: (type: D.self, keyPath: inverseKeyPath()),
versionHashModifier: versionHashModifier(),
renamingIdentifier: renamingIdentifier(),
affectedByKeyPaths: affectedByKeyPaths(),
minCount: range.lowerBound,
maxCount: range.upperBound
)
}
}
}
}
@available(*, deprecated, message: """
Legacy `Value.*`, `Transformable.*`, and `Relationship.*` declarations will soon be obsoleted. Please migrate your models and stores to new models that use `@Field.*` property wrappers. See: https://github.com/JohnEstropia/CoreStore?tab=readme-ov-file#new-field-property-wrapper-syntax
""")
extension RelationshipContainer.ToManyUnordered: Sequence {
public var count: Int {
return self.nativeValue.count
}
public var isEmpty: Bool {
return self.nativeValue.count == 0
}
public typealias Iterator = AnyIterator<D>
public func makeIterator() -> Iterator {
var iterator = self.nativeValue.makeIterator()
return AnyIterator({ iterator.next().flatMap({ D.cs_fromRaw(object: $0 as! NSManagedObject) }) })
}
}
@available(*, deprecated, message: """
Legacy `Value.*`, `Transformable.*`, and `Relationship.*` declarations will soon be obsoleted. Please migrate your models and stores to new models that use `@Field.*` property wrappers. See: https://github.com/JohnEstropia/CoreStore?tab=readme-ov-file#new-field-property-wrapper-syntax
""")
extension RelationshipContainer.ToManyUnordered {
public static func .= <S: Sequence>(_ relationship: RelationshipContainer<O>.ToManyUnordered<D>, _ newValue: S) where S.Iterator.Element == D {
relationship.nativeValue = NSSet(array: newValue.map({ $0.rawObject! }))
}
public static func .= <O2>(_ relationship: RelationshipContainer<O>.ToManyUnordered<D>, _ relationship2: RelationshipContainer<O2>.ToManyUnordered<D>) {
relationship.nativeValue = relationship2.nativeValue
}
public static func .= <O2>(_ relationship: RelationshipContainer<O>.ToManyUnordered<D>, _ relationship2: RelationshipContainer<O2>.ToManyOrdered<D>) {
relationship.nativeValue = NSSet(set: relationship2.nativeValue.set)
}
public static func .== (_ relationship: RelationshipContainer<O>.ToManyUnordered<D>, _ set: Set<D>) -> Bool {
return relationship.nativeValue.isEqual(to: Set(set.map({ $0.rawObject! })))
}
public static func .== (_ set: Set<D>, _ relationship: RelationshipContainer<O>.ToManyUnordered<D>) -> Bool {
return relationship.nativeValue.isEqual(to: Set(set.map({ $0.rawObject! })))
}
public static func .== <O2>(_ relationship: RelationshipContainer<O>.ToManyUnordered<D>, _ relationship2: RelationshipContainer<O2>.ToManyUnordered<D>) -> Bool {
return relationship.nativeValue.isEqual(relationship2.nativeValue)
}
}