mirror of
https://github.com/JohnEstropia/CoreStore.git
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295 lines
12 KiB
Swift
295 lines
12 KiB
Swift
//
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// Relationship.ToManyOrdered.swift
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// CoreStore
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//
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// Copyright © 2020 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: - Deprecated
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@available(*, deprecated, message: """
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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
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""")
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extension RelationshipContainer {
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public final class ToManyOrdered<D: CoreStoreObject>: ToManyRelationshipKeyPathStringConvertible, RelationshipProtocol {
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public convenience init(
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_ keyPath: KeyPathString,
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minCount: Int = 0,
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maxCount: Int = 0,
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deleteRule: DeleteRule = .nullify,
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versionHashModifier: @autoclosure @escaping () -> String? = nil,
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renamingIdentifier: @autoclosure @escaping () -> String? = nil,
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affectedByKeyPaths: @autoclosure @escaping () -> Set<String> = []) {
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self.init(
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keyPath: keyPath,
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minCount: minCount,
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maxCount: maxCount,
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inverseKeyPath: { nil },
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deleteRule: deleteRule,
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versionHashModifier: versionHashModifier(),
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renamingIdentifier: renamingIdentifier(),
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affectedByKeyPaths: affectedByKeyPaths()
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)
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}
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public convenience init(
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_ keyPath: KeyPathString,
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minCount: Int = 0,
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maxCount: Int = 0,
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inverse: @escaping (D) -> RelationshipContainer<D>.ToOne<O>,
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deleteRule: DeleteRule = .nullify,
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versionHashModifier: @autoclosure @escaping () -> String? = nil,
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renamingIdentifier: @autoclosure @escaping () -> String? = nil,
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affectedByKeyPaths: @autoclosure @escaping () -> Set<String> = []) {
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self.init(
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keyPath: keyPath,
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minCount: minCount,
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maxCount: maxCount,
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inverseKeyPath: { inverse(D.meta).keyPath },
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deleteRule: deleteRule,
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versionHashModifier: versionHashModifier(),
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renamingIdentifier: renamingIdentifier(),
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affectedByKeyPaths: affectedByKeyPaths()
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)
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}
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public convenience init(
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_ keyPath: KeyPathString,
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minCount: Int = 0,
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maxCount: Int = 0,
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inverse: @escaping (D) -> RelationshipContainer<D>.ToManyOrdered<O>,
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deleteRule: DeleteRule = .nullify,
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versionHashModifier: @autoclosure @escaping () -> String? = nil,
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renamingIdentifier: @autoclosure @escaping () -> String? = nil,
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affectedByKeyPaths: @autoclosure @escaping () -> Set<String> = []) {
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self.init(
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keyPath: keyPath,
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minCount: minCount,
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maxCount: maxCount,
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inverseKeyPath: { inverse(D.meta).keyPath },
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deleteRule: deleteRule,
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versionHashModifier: versionHashModifier(),
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renamingIdentifier: renamingIdentifier(),
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affectedByKeyPaths: affectedByKeyPaths()
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)
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}
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public convenience init(
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_ keyPath: KeyPathString,
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minCount: Int = 0,
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maxCount: Int = 0,
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inverse: @escaping (D) -> RelationshipContainer<D>.ToManyUnordered<O>,
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deleteRule: DeleteRule = .nullify,
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versionHashModifier: @autoclosure @escaping () -> String? = nil,
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renamingIdentifier: @autoclosure @escaping () -> String? = nil,
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affectedByKeyPaths: @autoclosure @escaping () -> Set<String> = []) {
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self.init(
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keyPath: keyPath,
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minCount: minCount,
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maxCount: maxCount,
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inverseKeyPath: { inverse(D.meta).keyPath },
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deleteRule: deleteRule,
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versionHashModifier: versionHashModifier(),
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renamingIdentifier: renamingIdentifier(),
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affectedByKeyPaths: affectedByKeyPaths()
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)
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}
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public var value: ReturnValueType {
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get {
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return self.nativeValue.map({ D.cs_fromRaw(object: $0 as! NSManagedObject) })
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}
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set {
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self.nativeValue = NSOrderedSet(array: newValue.map({ $0.rawObject! }))
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}
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}
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public var cs_keyPathString: String {
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return self.keyPath
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}
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public typealias ObjectType = O
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public typealias DestinationValueType = D
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public typealias ReturnValueType = [DestinationValueType]
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internal let keyPath: KeyPathString
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internal let entityDescriptionValues: () -> RelationshipProtocol.EntityDescriptionValues
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internal var rawObject: CoreStoreManagedObject?
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internal var nativeValue: NSOrderedSet {
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get {
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Internals.assert(
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self.rawObject != nil,
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"Attempted to access values from a \(Internals.typeName(O.self)) meta object. Meta objects are only used for querying keyPaths and infering types."
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)
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return withExtendedLifetime(self.rawObject!) { (object) in
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Internals.assert(
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object.isRunningInAllowedQueue() == true,
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"Attempted to access \(Internals.typeName(O.self))'s value outside it's designated queue."
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)
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return object.getValue(
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forKvcKey: self.keyPath,
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didGetValue: { ($0 as! NSOrderedSet?) ?? [] }
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)
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}
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}
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set {
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Internals.assert(
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self.rawObject != nil,
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"Attempted to access values from a \(Internals.typeName(O.self)) meta object. Meta objects are only used for querying keyPaths and infering types."
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)
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return withExtendedLifetime(self.rawObject!) { (object) in
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Internals.assert(
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object.isRunningInAllowedQueue() == true,
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"Attempted to access \(Internals.typeName(O.self))'s value outside it's designated queue."
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)
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Internals.assert(
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object.isEditableInContext() == true,
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"Attempted to update a \(Internals.typeName(O.self))'s value from outside a transaction."
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)
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object.setValue(
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newValue,
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forKvcKey: self.keyPath
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)
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}
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}
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}
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internal var valueForSnapshot: Any? {
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return self.value.map({ $0.objectID() })
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}
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private init(keyPath: String, minCount: Int, maxCount: Int, inverseKeyPath: @escaping () -> String?, deleteRule: DeleteRule, versionHashModifier: @autoclosure @escaping () -> String?, renamingIdentifier: @autoclosure @escaping () -> String?, affectedByKeyPaths: @autoclosure @escaping () -> Set<String>) {
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self.keyPath = keyPath
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self.entityDescriptionValues = {
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let range = (Swift.max(0, minCount) ... maxCount)
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return (
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isToMany: true,
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isOrdered: true,
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deleteRule: deleteRule.nativeValue,
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inverse: (type: D.self, keyPath: inverseKeyPath()),
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versionHashModifier: versionHashModifier(),
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renamingIdentifier: renamingIdentifier(),
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affectedByKeyPaths: affectedByKeyPaths(),
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minCount: range.lowerBound,
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maxCount: range.upperBound
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)
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}
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}
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}
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}
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@available(*, deprecated, message: """
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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
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""")
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extension RelationshipContainer.ToManyOrdered: RandomAccessCollection {
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public typealias Iterator = AnyIterator<D>
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public func makeIterator() -> Iterator {
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var iterator = self.nativeValue.makeIterator()
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return AnyIterator({ iterator.next().flatMap({ D.cs_fromRaw(object: $0 as! NSManagedObject) }) })
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}
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public typealias Index = Int
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public var startIndex: Index {
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return 0
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}
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public var endIndex: Index {
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return self.nativeValue.count
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}
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public subscript(position: Index) -> Iterator.Element {
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return D.cs_fromRaw(object: self.nativeValue[position] as! NSManagedObject)
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}
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public func index(after i: Index) -> Index {
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return i + 1
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}
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}
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@available(*, deprecated, message: """
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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
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""")
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extension RelationshipContainer.ToManyOrdered {
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public static func .= <S: Sequence>(_ relationship: RelationshipContainer<O>.ToManyOrdered<D>, _ newValue: S) where S.Iterator.Element == D {
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relationship.nativeValue = NSOrderedSet(array: newValue.map({ $0.rawObject! }))
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}
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public static func .= <O2>(_ relationship: RelationshipContainer<O>.ToManyOrdered<D>, _ relationship2: RelationshipContainer<O2>.ToManyOrdered<D>) {
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relationship.nativeValue = relationship2.nativeValue
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}
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public static func .== <C: Collection>(_ relationship: RelationshipContainer<O>.ToManyOrdered<D>, _ collection: C) -> Bool where C.Iterator.Element == D {
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return relationship.nativeValue.elementsEqual(
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collection.lazy.map({ $0.rawObject! }),
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by: { ($0 as! NSManagedObject) == $1 }
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)
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}
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public static func .== <C: Collection>(_ collection: C, _ relationship: RelationshipContainer<O>.ToManyOrdered<D>) -> Bool where C.Iterator.Element == D {
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return relationship.nativeValue.elementsEqual(
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collection.lazy.map({ $0.rawObject! }),
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by: { ($0 as! NSManagedObject) == $1 }
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)
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}
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public static func .== <O2>(_ relationship: RelationshipContainer<O>.ToManyOrdered<D>, _ relationship2: RelationshipContainer<O2>.ToManyOrdered<D>) -> Bool {
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return relationship.nativeValue == relationship2.nativeValue
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}
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}
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