mirror of
https://github.com/JohnEstropia/CoreStore.git
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854 lines
22 KiB
Swift
854 lines
22 KiB
Swift
//
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// Where.swift
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// CoreStore
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//
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// Copyright © 2018 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 Foundation
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import CoreData
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// MARK: - Where
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/**
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The `Where` clause specifies the conditions for a fetch or a query.
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*/
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public struct Where<O: DynamicObject>: WhereClauseType, FetchClause, QueryClause, DeleteClause, Hashable {
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/**
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Combines two `Where` predicates together using `AND` operator
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*/
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public static func && (
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left: Where<O>,
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right: Where<O>
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) -> Where<O> {
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return Where<O>(
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NSCompoundPredicate(
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type: .and,
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subpredicates: [left.predicate, right.predicate]
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)
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)
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}
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/**
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Combines two `Where` predicates together using `OR` operator
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*/
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public static func || (
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left: Where<O>,
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right: Where<O>
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) -> Where<O> {
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return Where<O>(
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NSCompoundPredicate(
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type: .or,
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subpredicates: [left.predicate, right.predicate]
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)
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)
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}
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/**
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Inverts the predicate of a `Where` clause using `NOT` operator
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*/
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public static prefix func ! (
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clause: Where<O>
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) -> Where<O> {
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return Where<O>(
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NSCompoundPredicate(
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type: .not,
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subpredicates: [clause.predicate]
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)
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)
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}
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/**
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Combines two `Where` predicates together using `AND` operator.
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- returns: `left` if `right` is `nil`, otherwise equivalent to `(left && right)`
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*/
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public static func &&? (
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left: Where<O>,
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right: Where<O>?
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) -> Where<O> {
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if let right = right {
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return left && right
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}
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return left
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}
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/**
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Combines two `Where` predicates together using `AND` operator.
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- returns: `right` if `left` is `nil`, otherwise equivalent to `(left && right)`
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*/
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public static func &&? (
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left: Where<O>?,
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right: Where<O>
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) -> Where<O> {
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if let left = left {
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return left && right
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}
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return right
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}
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/**
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Combines two `Where` predicates together using `OR` operator.
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- returns: `left` if `right` is `nil`, otherwise equivalent to `(left || right)`
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*/
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public static func ||? (
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left: Where<O>,
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right: Where<O>?
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) -> Where<O> {
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if let right = right {
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return left || right
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}
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return left
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}
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/**
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Combines two `Where` predicates together using `OR` operator.
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- returns: `right` if `left` is `nil`, otherwise equivalent to `(left || right)`
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*/
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public static func ||? (
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left: Where<O>?,
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right: Where<O>
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) -> Where<O> {
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if let left = left {
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return left || right
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}
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return right
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}
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/**
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Initializes a `Where` clause with a predicate that always evaluates to `true`
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*/
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public init() {
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self.init(true)
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}
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/**
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Initializes a `Where` clause with an existing `Where` clause.
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- parameter clause: the existing `Where` clause.
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*/
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public init(
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_ clause: Where<O>
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) {
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self.init(clause.predicate)
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}
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/**
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Initializes a `Where` clause with a predicate that always evaluates to the specified boolean value
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- parameter value: the boolean value for the predicate
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*/
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public init(
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_ value: Bool
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) {
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self.init(NSPredicate(value: value))
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}
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/**
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Initializes a `Where` clause with a predicate using the specified string format and arguments
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- parameter format: the format string for the predicate
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- parameter args: the arguments for `format`
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*/
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public init(
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_ format: String,
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_ args: Any...
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) {
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self.init(NSPredicate(format: format, argumentArray: args))
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}
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/**
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Initializes a `Where` clause with a predicate using the specified string format and arguments
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- parameter format: the format string for the predicate
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- parameter argumentArray: the arguments for `format`
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*/
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public init(
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_ format: String,
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argumentArray: [Any]?
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) {
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self.init(NSPredicate(format: format, argumentArray: argumentArray))
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}
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/**
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Initializes a `Where` clause that compares equality to `nil`
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- parameter keyPath: the keyPath to compare with
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- parameter null: the arguments for the `==` operator
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*/
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public init(
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_ keyPath: KeyPathString,
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isEqualTo null: Void?
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) {
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self.init(NSPredicate(format: "\(keyPath) == nil"))
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}
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/**
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Initializes a `Where` clause that compares equality
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- parameter keyPath: the keyPath to compare with
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- parameter value: the arguments for the `==` operator
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*/
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public init<V: FieldStorableType>(
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_ keyPath: KeyPathString,
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isEqualTo value: V
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) {
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var nilPredicate: NSPredicate {
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return NSPredicate(
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format: "\(keyPath) == nil"
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)
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}
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var valuePredicate: NSPredicate {
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return NSPredicate(
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format: "\(keyPath) == %@",
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argumentArray: [value.cs_toFieldStoredNativeType() as Any]
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)
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}
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switch value {
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#if swift(>=5.7)
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case let optionalValue as any FieldOptionalType:
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switch optionalValue.cs_wrappedValue {
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case nil,
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is NSNull:
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self.init(nilPredicate)
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case _?:
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self.init(valuePredicate)
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}
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#else
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case nil:
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self.init(nilPredicate)
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#endif
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case is NSNull:
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self.init(nilPredicate)
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case _:
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self.init(valuePredicate)
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}
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}
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/**
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Initializes a `Where` clause that compares equality
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- parameter keyPath: the keyPath to compare with
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- parameter value: the arguments for the `==` operator
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*/
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@_disfavoredOverload
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public init<U: QueryableAttributeType>(
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_ keyPath: KeyPathString,
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isEqualTo value: U?
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) {
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switch value {
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case nil,
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is NSNull:
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self.init(
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NSPredicate(
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format: "\(keyPath) == nil"
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)
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)
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case let value?:
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self.init(
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NSPredicate(
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format: "\(keyPath) == %@",
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argumentArray: [value.cs_toQueryableNativeType()]
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)
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)
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}
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}
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/**
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Initializes a `Where` clause that compares equality
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- parameter keyPath: the keyPath to compare with
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- parameter object: the arguments for the `==` operator
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*/
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public init<Other: DynamicObject>(
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_ keyPath: KeyPathString,
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isEqualTo object: Other?
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) {
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switch object {
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case nil:
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self.init(
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NSPredicate(
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format: "\(keyPath) == nil"
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)
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)
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case let object?:
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self.init(
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NSPredicate(
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format: "\(keyPath) == %@",
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argumentArray: [object.cs_id()]
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)
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)
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}
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}
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/**
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Initializes a `Where` clause that compares equality
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- parameter keyPath: the keyPath to compare with
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- parameter objectID: the arguments for the `==` operator
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*/
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public init(
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_ keyPath: KeyPathString,
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isEqualTo objectID: NSManagedObjectID
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) {
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self.init(
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NSPredicate(
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format: "\(keyPath) == %@",
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argumentArray: [objectID]
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)
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)
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}
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/**
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Initializes a `Where` clause that compares membership
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- parameter keyPath: the keyPath to compare with
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- parameter list: the sequence to check membership of
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*/
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public init<S: Sequence>(
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_ keyPath: KeyPathString,
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isMemberOf list: S
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) where S.Iterator.Element: FieldStorableType {
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self.init(
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NSPredicate(
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format: "\(keyPath) IN %@",
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list.map({ $0.cs_toFieldStoredNativeType() }) as NSArray
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)
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)
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}
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/**
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Initializes a `Where` clause that compares membership
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- parameter keyPath: the keyPath to compare with
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- parameter list: the sequence to check membership of
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*/
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@_disfavoredOverload
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public init<S: Sequence>(
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_ keyPath: KeyPathString,
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isMemberOf list: S
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) where S.Iterator.Element: QueryableAttributeType {
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self.init(
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NSPredicate(
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format: "\(keyPath) IN %@",
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list.map({ $0.cs_toQueryableNativeType() }) as NSArray
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)
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)
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}
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/**
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Initializes a `Where` clause that compares membership
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- parameter keyPath: the keyPath to compare with
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- parameter list: the sequence to check membership of
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*/
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public init<S: Sequence>(
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_ keyPath: KeyPathString,
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isMemberOf list: S
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) where S.Iterator.Element: DynamicObject {
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self.init(
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NSPredicate(
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format: "\(keyPath) IN %@",
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list.map({ $0.cs_id() }) as NSArray
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)
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)
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}
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/**
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Initializes a `Where` clause that compares membership
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- parameter keyPath: the keyPath to compare with
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- parameter list: the sequence to check membership of
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*/
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public init<S: Sequence>(
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_ keyPath: KeyPathString,
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isMemberOf list: S
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) where S.Iterator.Element: NSManagedObjectID {
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self.init(
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NSPredicate(
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format: "\(keyPath) IN %@",
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list.map({ $0 }) as NSArray
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)
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)
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}
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// MARK: AnyWhereClause
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public let predicate: NSPredicate
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public init(_ predicate: NSPredicate) {
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self.predicate = predicate
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}
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// MARK: WhereClauseType
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public typealias ObjectType = O
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// MARK: FetchClause, QueryClause, DeleteClause
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public func applyToFetchRequest<ResultType>(
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_ fetchRequest: NSFetchRequest<ResultType>
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) {
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if let predicate = fetchRequest.predicate, predicate != self.predicate {
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Internals.log(
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.warning,
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message: "An existing predicate for the \(Internals.typeName(fetchRequest)) was overwritten by \(Internals.typeName(self)) query clause."
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)
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}
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fetchRequest.predicate = self.predicate
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}
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// MARK: Equatable
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public static func == (
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lhs: Self,
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rhs: Self
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) -> Bool {
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return lhs.predicate == rhs.predicate
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}
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// MARK: Hashable
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public func hash(into hasher: inout Hasher) {
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hasher.combine(self.predicate)
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}
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}
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// MARK: - Where where O: NSManagedObject
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extension Where where O: NSManagedObject {
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/**
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Initializes a `Where` clause that compares equality to `nil`
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- parameter keyPath: the keyPath to compare with
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- parameter null: the arguments for the `==` operator
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*/
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public init<V: QueryableAttributeType>(
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_ keyPath: KeyPath<O, V>,
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isEqualTo null: Void?
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) {
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self.init(
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keyPath._kvcKeyPathString!,
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isEqualTo: null
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)
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}
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/**
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Initializes a `Where` clause that compares equality to `nil`
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- parameter keyPath: the keyPath to compare with
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- parameter null: the arguments for the `==` operator
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*/
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public init<D: DynamicObject>(
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_ keyPath: KeyPath<O, D>,
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isEqualTo null: Void?
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) {
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self.init(
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keyPath._kvcKeyPathString!,
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isEqualTo: null
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)
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}
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/**
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Initializes a `Where` clause that compares equality
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- parameter keyPath: the keyPath to compare with
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- parameter value: the arguments for the `==` operator
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*/
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public init<V: QueryableAttributeType>(
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_ keyPath: KeyPath<O, V>,
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isEqualTo value: V?
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) {
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self.init(
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keyPath._kvcKeyPathString!,
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isEqualTo: value
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)
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}
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/**
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Initializes a `Where` clause that compares equality
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- parameter keyPath: the keyPath to compare with
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- parameter value: the arguments for the `==` operator
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*/
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public init<D: DynamicObject>(
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_ keyPath: KeyPath<O, D>,
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isEqualTo value: D?
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) {
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self.init(
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keyPath._kvcKeyPathString!,
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isEqualTo: value
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)
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}
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/**
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Initializes a `Where` clause that compares equality
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- parameter keyPath: the keyPath to compare with
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- parameter objectID: the arguments for the `==` operator
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*/
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public init<D: DynamicObject>(
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_ keyPath: KeyPath<O, D>,
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isEqualTo objectID: NSManagedObjectID
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) {
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self.init(
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keyPath._kvcKeyPathString!,
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isEqualTo: objectID
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)
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}
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/**
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Initializes a `Where` clause that compares membership
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- parameter keyPath: the keyPath to compare with
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- parameter list: the sequence to check membership of
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*/
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public init<V: QueryableAttributeType, S: Sequence>(
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_ keyPath: KeyPath<O, V>,
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isMemberOf list: S
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) where S.Iterator.Element == V {
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self.init(
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keyPath._kvcKeyPathString!,
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isMemberOf: list
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)
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}
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/**
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Initializes a `Where` clause that compares membership
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- parameter keyPath: the keyPath to compare with
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- parameter list: the sequence to check membership of
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*/
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public init<D: DynamicObject, S: Sequence>(
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_ keyPath: KeyPath<O, D>,
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isMemberOf list: S
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) where S.Iterator.Element == D {
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self.init(
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keyPath._kvcKeyPathString!,
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isMemberOf: list
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)
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}
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|
|
/**
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Initializes a `Where` clause that compares membership
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|
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- parameter keyPath: the keyPath to compare with
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- parameter list: the sequence to check membership of
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*/
|
|
public init<D: DynamicObject, S: Sequence>(
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_ keyPath: KeyPath<D, O>,
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isMemberOf list: S
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) where S.Iterator.Element: NSManagedObjectID {
|
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|
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self.init(
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keyPath._kvcKeyPathString!,
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isMemberOf: list
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)
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}
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}
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|
|
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|
// MARK: - Where where O: CoreStoreObject
|
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|
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extension Where where O: CoreStoreObject {
|
|
|
|
/**
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Initializes a `Where` clause that compares equality
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|
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- parameter keyPath: the keyPath to compare with
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- parameter value: the arguments for the `==` operator
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*/
|
|
public init<V>(
|
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_ keyPath: KeyPath<O, FieldContainer<O>.Stored<V>>,
|
|
isEqualTo value: V
|
|
) {
|
|
|
|
self.init(
|
|
O.meta[keyPath: keyPath].keyPath,
|
|
isEqualTo: value
|
|
)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter value: the arguments for the `==` operator
|
|
*/
|
|
public init<V: FieldRelationshipToOneType>(
|
|
_ keyPath: KeyPath<O, FieldContainer<O>.Relationship<V>>,
|
|
isEqualTo value: V.DestinationObjectType?
|
|
) {
|
|
|
|
self.init(
|
|
O.meta[keyPath: keyPath].keyPath,
|
|
isEqualTo: value
|
|
)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality to `nil`
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter null: the arguments for the `==` operator
|
|
*/
|
|
public init<V>(
|
|
_ keyPath: KeyPath<O, FieldContainer<O>.Stored<V>>,
|
|
isEqualTo null: Void?
|
|
) {
|
|
|
|
self.init(
|
|
O.meta[keyPath: keyPath].keyPath,
|
|
isEqualTo: null
|
|
)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality to `nil`
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter null: the arguments for the `==` operator
|
|
*/
|
|
public init<V: FieldRelationshipToOneType>(
|
|
_ keyPath: KeyPath<O, FieldContainer<O>.Relationship<V>>,
|
|
isEqualTo null: Void?
|
|
) {
|
|
|
|
self.init(
|
|
O.meta[keyPath: keyPath].keyPath,
|
|
isEqualTo: null
|
|
)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares membership
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter list: the sequence to check membership of
|
|
*/
|
|
public init<V, S: Sequence>(
|
|
_ keyPath: KeyPath<O, FieldContainer<O>.Stored<V>>,
|
|
isMemberOf list: S
|
|
) where S.Iterator.Element == V {
|
|
|
|
self.init(
|
|
O.meta[keyPath: keyPath].keyPath,
|
|
isMemberOf: list
|
|
)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares membership
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter list: the sequence to check membership of
|
|
*/
|
|
public init<V: FieldRelationshipToOneType, S: Sequence>(
|
|
_ keyPath: KeyPath<O, FieldContainer<O>.Relationship<V>>,
|
|
isMemberOf list: S
|
|
) where S.Iterator.Element == V.DestinationObjectType {
|
|
|
|
self.init(
|
|
O.meta[keyPath: keyPath].keyPath,
|
|
isMemberOf: list
|
|
)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares membership
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter list: the sequence to check membership of
|
|
*/
|
|
public init<V: FieldRelationshipToOneType, S: Sequence>(
|
|
_ keyPath: KeyPath<O, FieldContainer<O>.Relationship<V>>,
|
|
isMemberOf list: S
|
|
) where S.Iterator.Element: NSManagedObjectID {
|
|
|
|
self.init(
|
|
O.meta[keyPath: keyPath].keyPath,
|
|
isMemberOf: list
|
|
)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause from a closure
|
|
|
|
- parameter condition: closure that returns the `Where` clause
|
|
*/
|
|
public init(
|
|
_ condition: (O) -> Where<O>
|
|
) {
|
|
|
|
self = condition(O.meta)
|
|
}
|
|
}
|
|
|
|
|
|
// MARK: - Sequence where Iterator.Element: WhereClauseType
|
|
|
|
extension Sequence where Iterator.Element: WhereClauseType {
|
|
|
|
/**
|
|
Combines multiple `Where` predicates together using `AND` operator
|
|
*/
|
|
public func combinedByAnd() -> Where<Iterator.Element.ObjectType> {
|
|
|
|
return Where(
|
|
NSCompoundPredicate(
|
|
type: .and,
|
|
subpredicates: self.map({ $0.predicate })
|
|
)
|
|
)
|
|
}
|
|
|
|
/**
|
|
Combines multiple `Where` predicates together using `OR` operator
|
|
*/
|
|
public func combinedByOr() -> Where<Iterator.Element.ObjectType> {
|
|
|
|
return Where(
|
|
NSCompoundPredicate(
|
|
type: .or,
|
|
subpredicates: self.map({ $0.predicate })
|
|
)
|
|
)
|
|
}
|
|
}
|
|
|
|
|
|
// 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 Where where O: CoreStoreObject {
|
|
|
|
public init<V>(_ keyPath: KeyPath<O, ValueContainer<O>.Required<V>>, isEqualTo value: V?) {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isEqualTo: value)
|
|
}
|
|
|
|
public init<V>(_ keyPath: KeyPath<O, ValueContainer<O>.Optional<V>>, isEqualTo value: V?) {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isEqualTo: value)
|
|
}
|
|
|
|
public init<V>(_ keyPath: KeyPath<O, ValueContainer<O>.Optional<V>>, isEqualTo null: Void?) {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isEqualTo: null)
|
|
}
|
|
|
|
public init<D>(_ keyPath: KeyPath<O, RelationshipContainer<O>.ToOne<D>>, isEqualTo null: Void?) {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isEqualTo: null)
|
|
}
|
|
|
|
public init<D>(_ keyPath: KeyPath<O, RelationshipContainer<O>.ToOne<D>>, isEqualTo value: D?) {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isEqualTo: value)
|
|
}
|
|
|
|
public init<D>(_ keyPath: KeyPath<O, RelationshipContainer<O>.ToOne<D>>, isEqualTo objectID: NSManagedObjectID) {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isEqualTo: objectID)
|
|
}
|
|
|
|
public init<V, S: Sequence>(_ keyPath: KeyPath<O, ValueContainer<O>.Required<V>>, isMemberOf list: S) where S.Iterator.Element == V {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isMemberOf: list)
|
|
}
|
|
|
|
public init<V, S: Sequence>(_ keyPath: KeyPath<O, ValueContainer<O>.Optional<V>>, isMemberOf list: S) where S.Iterator.Element == V {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isMemberOf: list)
|
|
}
|
|
|
|
public init<D, S: Sequence>(_ keyPath: KeyPath<O, RelationshipContainer<O>.ToOne<D>>, isMemberOf list: S) where S.Iterator.Element == D {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isMemberOf: list)
|
|
}
|
|
|
|
public init<D, S: Sequence>(_ keyPath: KeyPath<O, RelationshipContainer<O>.ToOne<D>>, isMemberOf list: S) where S.Iterator.Element: NSManagedObjectID {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isMemberOf: list)
|
|
}
|
|
}
|