mirror of
https://github.com/JohnEstropia/CoreStore.git
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67 lines
2.1 KiB
Swift
67 lines
2.1 KiB
Swift
//
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// String+KeyPaths.swift
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// CoreStore
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//
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// Copyright © 2019 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: - KeyPathString
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extension KeyPathString {
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/**
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Extracts the keyPath string from the property.
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```
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let keyPath = String(keyPath: \Person.nickname)
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```
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*/
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public init<O: NSManagedObject, V: AllowedObjectiveCKeyPathValue>(keyPath: KeyPath<O, V>) {
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self = keyPath.cs_keyPathString
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}
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/**
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Extracts the keyPath string from the property.
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```
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let keyPath = String(keyPath: \Person.nickname)
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```
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*/
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public init<O: CoreStoreObject, K: KeyPathStringConvertible>(keyPath: KeyPath<O, K>) {
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self = O.meta[keyPath: keyPath].cs_keyPathString
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}
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/**
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Extracts the keyPath string from the property.
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```
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let keyPath = String(keyPath: \Person.nickname)
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```
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*/
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public init<O: DynamicObject, T, V>(keyPath: Where<O>.Expression<T, V>) {
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self = keyPath.cs_keyPathString
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}
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}
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