mirror of
https://github.com/JohnEstropia/CoreStore.git
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Merge branch 'develop' into corestore4_develop
# Conflicts: # CoreStore.podspec # Sources/CoreStoreImportableAttributeType.swift # Sources/CoreStoreQueryableAttributeType.swift # Sources/Info.plist # Sources/NSManagedObjectModel+Setup.swift
This commit is contained in:
John Estropia
431
Sources/Relationship.swift
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431
Sources/Relationship.swift
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//
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// Relationship.swift
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// CoreStore
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//
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// Copyright © 2017 John Rommel Estropia
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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import CoreData
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import Foundation
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// MARK: Operators
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infix operator .= : AssignmentPrecedence
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// MARK: - DynamicObject
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public extension DynamicObject where Self: CoreStoreObject {
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public typealias Relationship = RelationshipContainer<Self>
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}
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// MARK: - RelationshipContainer
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public enum RelationshipContainer<O: CoreStoreObject> {
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// MARK: - ToOne
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public final class ToOne<D: CoreStoreObject>: RelationshipProtocol {
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// MARK: -
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public static func .= (_ relationship: RelationshipContainer<O>.ToOne<D>, _ value: D?) {
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relationship.value = value
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}
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public static func .=<O2: CoreStoreObject> (_ relationship: RelationshipContainer<O>.ToOne<D>, _ relationship2: RelationshipContainer<O2>.ToOne<D>) {
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relationship.value = relationship2.value
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}
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public convenience init(_ keyPath: KeyPath, deleteRule: DeleteRule = .nullify, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { nil }, deleteRule: deleteRule, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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public convenience init(_ keyPath: KeyPath, inverse: @escaping (D) -> RelationshipContainer<D>.ToOne<O>, deleteRule: DeleteRule = .nullify, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { inverse(D.meta).keyPath }, deleteRule: deleteRule, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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public convenience init(_ keyPath: KeyPath, inverse: @escaping (D) -> RelationshipContainer<D>.ToManyOrdered<O>, deleteRule: DeleteRule = .nullify, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { inverse(D.meta).keyPath }, deleteRule: deleteRule, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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public convenience init(_ keyPath: KeyPath, inverse: @escaping (D) -> RelationshipContainer<D>.ToManyUnordered<O>, deleteRule: DeleteRule = .nullify, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { inverse(D.meta).keyPath }, deleteRule: deleteRule, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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public var value: D? {
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get {
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let object = self.parentObject() as! O
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CoreStore.assert(
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object.rawObject!.isRunningInAllowedQueue() == true,
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"Attempted to access \(cs_typeName(O.self))'s value outside it's designated queue."
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)
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return object.rawObject!.getValue(
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forKvcKey: self.keyPath,
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didGetValue: { $0.flatMap({ D.cs_fromRaw(object: $0 as! NSManagedObject) }) }
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)
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}
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set {
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let object = self.parentObject() as! O
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CoreStore.assert(
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object.rawObject!.isRunningInAllowedQueue() == true,
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"Attempted to access \(cs_typeName(O.self))'s value outside it's designated queue."
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)
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CoreStore.assert(
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object.rawObject!.isEditableInContext() == true,
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"Attempted to update a \(cs_typeName(O.self))'s value from outside a transaction."
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)
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object.rawObject!.setValue(
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newValue,
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forKvcKey: self.keyPath,
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willSetValue: { $0?.rawObject }
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)
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}
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}
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// MARK: RelationshipProtocol
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public let keyPath: KeyPath
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internal let isToMany = false
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internal let isOrdered = false
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internal let deleteRule: NSDeleteRule
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internal let minCount: Int = 0
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internal let maxCount: Int = 1
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internal let inverse: (type: CoreStoreObject.Type, keyPath: () -> KeyPath?)
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internal let versionHashModifier: String?
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internal let renamingIdentifier: String?
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internal var parentObject: () -> CoreStoreObject = {
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CoreStore.abort("Attempted to access values from a \(cs_typeName(O.self)) meta object. Meta objects are only used for querying keyPaths and infering types.")
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}
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// MARK: Private
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private init(keyPath: KeyPath, inverseKeyPath: @escaping () -> KeyPath?, deleteRule: DeleteRule, versionHashModifier: String?, renamingIdentifier: String?) {
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self.keyPath = keyPath
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self.deleteRule = deleteRule.nativeValue
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self.inverse = (D.self, inverseKeyPath)
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self.versionHashModifier = versionHashModifier
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self.renamingIdentifier = renamingIdentifier
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}
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}
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// MARK: - ToManyOrdered
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public final class ToManyOrdered<D: CoreStoreObject>: RelationshipProtocol {
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// MARK: -
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public static func .= (_ relationship: RelationshipContainer<O>.ToManyOrdered<D>, _ value: [D]) {
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relationship.value = value
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}
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public static func .=<C: Collection> (_ relationship: RelationshipContainer<O>.ToManyOrdered<D>, _ value: C) where C.Iterator.Element == D {
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relationship.value = Array(value)
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}
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public static func .=<O2: CoreStoreObject> (_ relationship: RelationshipContainer<O>.ToManyOrdered<D>, _ relationship2: RelationshipContainer<O2>.ToManyOrdered<D>) {
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relationship.value = relationship2.value
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}
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public convenience init(_ keyPath: KeyPath, deleteRule: DeleteRule = .nullify, minCount: Int = 0, maxCount: Int = 0, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { nil }, deleteRule: deleteRule, minCount: minCount, maxCount: maxCount, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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public convenience init(_ keyPath: KeyPath, inverse: @escaping (D) -> RelationshipContainer<D>.ToOne<O>, deleteRule: DeleteRule = .nullify, minCount: Int = 0, maxCount: Int = 0, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { inverse(D.meta).keyPath }, deleteRule: deleteRule, minCount: minCount, maxCount: maxCount, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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public convenience init(_ keyPath: KeyPath, inverse: @escaping (D) -> RelationshipContainer<D>.ToManyOrdered<O>, deleteRule: DeleteRule = .nullify, minCount: Int = 0, maxCount: Int = 0, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { inverse(D.meta).keyPath }, deleteRule: deleteRule, minCount: minCount, maxCount: maxCount, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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public convenience init(_ keyPath: KeyPath, inverse: @escaping (D) -> RelationshipContainer<D>.ToManyUnordered<O>, deleteRule: DeleteRule = .nullify, minCount: Int = 0, maxCount: Int = 0, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { inverse(D.meta).keyPath }, deleteRule: deleteRule, minCount: minCount, maxCount: maxCount, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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// TODO: add subscripts, indexed operations for more performant single updates
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public var value: [D] {
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get {
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let object = self.parentObject() as! O
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CoreStore.assert(
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object.rawObject!.isRunningInAllowedQueue() == true,
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"Attempted to access \(cs_typeName(O.self))'s value outside it's designated queue."
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)
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return object.rawObject!.getValue(
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forKvcKey: self.keyPath,
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didGetValue: {
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guard let orderedSet = $0 as! NSOrderedSet? else {
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return []
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}
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return orderedSet.map({ D.cs_fromRaw(object: $0 as! NSManagedObject) })
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}
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)
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}
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set {
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let object = self.parentObject() as! O
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CoreStore.assert(
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object.rawObject!.isRunningInAllowedQueue() == true,
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"Attempted to access \(cs_typeName(O.self))'s value outside it's designated queue."
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)
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CoreStore.assert(
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object.rawObject!.isEditableInContext() == true,
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"Attempted to update a \(cs_typeName(O.self))'s value from outside a transaction."
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)
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object.rawObject!.setValue(
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newValue,
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forKvcKey: self.keyPath,
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willSetValue: { NSOrderedSet(array: $0.map({ $0.rawObject! })) }
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)
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}
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}
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// MARK: RelationshipProtocol
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public let keyPath: KeyPath
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internal let isToMany = true
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internal let isOptional = true
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internal let isOrdered = true
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internal let deleteRule: NSDeleteRule
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internal let minCount: Int
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internal let maxCount: Int
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internal let inverse: (type: CoreStoreObject.Type, keyPath: () -> KeyPath?)
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internal let versionHashModifier: String?
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internal let renamingIdentifier: String?
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internal var parentObject: () -> CoreStoreObject = {
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CoreStore.abort("Attempted to access values from a \(cs_typeName(O.self)) meta object. Meta objects are only used for querying keyPaths and infering types.")
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}
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// MARK: Private
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private init(keyPath: String, inverseKeyPath: @escaping () -> String?, deleteRule: DeleteRule, minCount: Int, maxCount: Int, versionHashModifier: String?, renamingIdentifier: String?) {
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self.keyPath = keyPath
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self.deleteRule = deleteRule.nativeValue
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self.inverse = (D.self, inverseKeyPath)
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self.versionHashModifier = versionHashModifier
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self.renamingIdentifier = renamingIdentifier
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let range = (max(0, minCount) ... maxCount)
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self.minCount = range.lowerBound
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self.maxCount = range.upperBound
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}
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}
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// MARK: - ToManyUnordered
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public final class ToManyUnordered<D: CoreStoreObject>: RelationshipProtocol {
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// MARK: -
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public static func .= (_ relationship: RelationshipContainer<O>.ToManyUnordered<D>, _ value: Set<D>) {
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relationship.value = value
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}
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public static func .=<C: Collection> (_ relationship: RelationshipContainer<O>.ToManyUnordered<D>, _ value: C) where C.Iterator.Element == D {
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relationship.value = Set(value)
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}
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public static func .=<O2: CoreStoreObject> (_ relationship: RelationshipContainer<O>.ToManyUnordered<D>, _ relationship2: RelationshipContainer<O2>.ToManyUnordered<D>) {
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relationship.value = relationship2.value
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}
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public static func .=<O2: CoreStoreObject> (_ relationship: RelationshipContainer<O>.ToManyUnordered<D>, _ relationship2: RelationshipContainer<O2>.ToManyOrdered<D>) {
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relationship.value = Set(relationship2.value)
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}
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public convenience init(_ keyPath: KeyPath, deleteRule: DeleteRule = .nullify, minCount: Int = 0, maxCount: Int = 0, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { nil }, deleteRule: deleteRule, minCount: minCount, maxCount: maxCount, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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public convenience init(_ keyPath: KeyPath, inverse: @escaping (D) -> RelationshipContainer<D>.ToOne<O>, deleteRule: DeleteRule = .nullify, minCount: Int = 0, maxCount: Int = 0, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { inverse(D.meta).keyPath }, deleteRule: deleteRule, minCount: minCount, maxCount: maxCount, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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public convenience init(_ keyPath: KeyPath, inverse: @escaping (D) -> RelationshipContainer<D>.ToManyOrdered<O>, deleteRule: DeleteRule = .nullify, minCount: Int = 0, maxCount: Int = 0, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { inverse(D.meta).keyPath }, deleteRule: deleteRule, minCount: minCount, maxCount: maxCount, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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public convenience init(_ keyPath: KeyPath, inverse: @escaping (D) -> RelationshipContainer<D>.ToManyUnordered<O>, deleteRule: DeleteRule = .nullify, minCount: Int = 0, maxCount: Int = 0, versionHashModifier: String? = nil, renamingIdentifier: String? = nil) {
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self.init(keyPath: keyPath, inverseKeyPath: { inverse(D.meta).keyPath }, deleteRule: deleteRule, minCount: minCount, maxCount: maxCount, versionHashModifier: versionHashModifier, renamingIdentifier: renamingIdentifier)
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}
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// TODO: add subscripts, indexed operations for more performant single updates
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public var value: Set<D> {
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get {
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let object = self.parentObject() as! O
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CoreStore.assert(
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object.rawObject!.isRunningInAllowedQueue() == true,
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"Attempted to access \(cs_typeName(O.self))'s value outside it's designated queue."
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)
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return object.rawObject!.getValue(
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forKvcKey: self.keyPath,
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didGetValue: {
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guard let set = $0 as! NSSet? else {
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return []
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}
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return Set(set.map({ D.cs_fromRaw(object: $0 as! NSManagedObject) }))
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}
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)
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}
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set {
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let object = self.parentObject() as! O
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CoreStore.assert(
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object.rawObject!.isRunningInAllowedQueue() == true,
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"Attempted to access \(cs_typeName(O.self))'s value outside it's designated queue."
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)
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CoreStore.assert(
|
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object.rawObject!.isEditableInContext() == true,
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"Attempted to update a \(cs_typeName(O.self))'s value from outside a transaction."
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)
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object.rawObject!.setValue(
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newValue,
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forKvcKey: self.keyPath,
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willSetValue: { NSSet(array: $0.map({ $0.rawObject! })) }
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)
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}
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}
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// MARK: RelationshipProtocol
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public let keyPath: KeyPath
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internal let isToMany = true
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internal let isOptional = true
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internal let isOrdered = true
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internal let deleteRule: NSDeleteRule
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internal let minCount: Int
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internal let maxCount: Int
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internal let inverse: (type: CoreStoreObject.Type, keyPath: () -> KeyPath?)
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internal let versionHashModifier: String?
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internal let renamingIdentifier: String?
|
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|
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internal var parentObject: () -> CoreStoreObject = {
|
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|
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CoreStore.abort("Attempted to access values from a \(cs_typeName(O.self)) meta object. Meta objects are only used for querying keyPaths and infering types.")
|
||||
}
|
||||
|
||||
|
||||
// MARK: Private
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||||
|
||||
private init(keyPath: KeyPath, inverseKeyPath: @escaping () -> KeyPath?, deleteRule: DeleteRule, minCount: Int, maxCount: Int, versionHashModifier: String?, renamingIdentifier: String?) {
|
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|
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self.keyPath = keyPath
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self.deleteRule = deleteRule.nativeValue
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self.inverse = (D.self, inverseKeyPath)
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self.versionHashModifier = versionHashModifier
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self.renamingIdentifier = renamingIdentifier
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let range = (max(0, minCount) ... maxCount)
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self.minCount = range.lowerBound
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self.maxCount = range.upperBound
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||||
}
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||||
}
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||||
|
||||
|
||||
// MARK: - DeleteRule
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||||
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||||
public enum DeleteRule {
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case nullify
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case cascade
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case deny
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||||
|
||||
fileprivate var nativeValue: NSDeleteRule {
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||||
|
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switch self {
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||||
|
||||
case .nullify: return .nullifyDeleteRule
|
||||
case .cascade: return .cascadeDeleteRule
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||||
case .deny: return .denyDeleteRule
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||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// MARK: - RelationshipProtocol
|
||||
|
||||
internal protocol RelationshipProtocol: class {
|
||||
|
||||
var keyPath: KeyPath { get }
|
||||
var isToMany: Bool { get }
|
||||
var isOrdered: Bool { get }
|
||||
var deleteRule: NSDeleteRule { get }
|
||||
var inverse: (type: CoreStoreObject.Type, keyPath: () -> KeyPath?) { get }
|
||||
var parentObject: () -> CoreStoreObject { get set }
|
||||
var versionHashModifier: String? { get }
|
||||
var renamingIdentifier: String? { get }
|
||||
var minCount: Int { get }
|
||||
var maxCount: Int { get }
|
||||
}
|
||||
Reference in New Issue
Block a user