mirror of
https://github.com/JohnEstropia/CoreStore.git
synced 2026-01-14 13:13:33 +01:00
693 lines
22 KiB
Swift
693 lines
22 KiB
Swift
//
|
|
// Where.swift
|
|
// CoreStore
|
|
//
|
|
// Copyright © 2018 John Rommel Estropia
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in all
|
|
// copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
// SOFTWARE.
|
|
//
|
|
|
|
import Foundation
|
|
import CoreData
|
|
|
|
|
|
infix operator &&? : LogicalConjunctionPrecedence
|
|
infix operator ||? : LogicalConjunctionPrecedence
|
|
|
|
|
|
// MARK: - Where
|
|
|
|
/**
|
|
The `Where` clause specifies the conditions for a fetch or a query.
|
|
*/
|
|
public struct Where<O: DynamicObject>: WhereClauseType, FetchClause, QueryClause, DeleteClause, Hashable {
|
|
|
|
/**
|
|
Combines two `Where` predicates together using `AND` operator
|
|
*/
|
|
public static func && (left: Where<O>, right: Where<O>) -> Where<O> {
|
|
|
|
return Where<O>(NSCompoundPredicate(type: .and, subpredicates: [left.predicate, right.predicate]))
|
|
}
|
|
|
|
/**
|
|
Combines two `Where` predicates together using `OR` operator
|
|
*/
|
|
public static func || (left: Where<O>, right: Where<O>) -> Where<O> {
|
|
|
|
return Where<O>(NSCompoundPredicate(type: .or, subpredicates: [left.predicate, right.predicate]))
|
|
}
|
|
|
|
/**
|
|
Inverts the predicate of a `Where` clause using `NOT` operator
|
|
*/
|
|
public static prefix func ! (clause: Where<O>) -> Where<O> {
|
|
|
|
return Where<O>(NSCompoundPredicate(type: .not, subpredicates: [clause.predicate]))
|
|
}
|
|
|
|
/**
|
|
Combines two `Where` predicates together using `AND` operator.
|
|
- returns: `left` if `right` is `nil`, otherwise equivalent to `(left && right)`
|
|
*/
|
|
public static func &&? (left: Where<O>, right: Where<O>?) -> Where<O> {
|
|
|
|
if let right = right {
|
|
|
|
return left && right
|
|
}
|
|
return left
|
|
}
|
|
|
|
/**
|
|
Combines two `Where` predicates together using `AND` operator.
|
|
- returns: `right` if `left` is `nil`, otherwise equivalent to `(left && right)`
|
|
*/
|
|
public static func &&? (left: Where<O>?, right: Where<O>) -> Where<O> {
|
|
|
|
if let left = left {
|
|
|
|
return left && right
|
|
}
|
|
return right
|
|
}
|
|
|
|
/**
|
|
Combines two `Where` predicates together using `OR` operator.
|
|
- returns: `left` if `right` is `nil`, otherwise equivalent to `(left || right)`
|
|
*/
|
|
public static func ||? (left: Where<O>, right: Where<O>?) -> Where<O> {
|
|
|
|
if let right = right {
|
|
|
|
return left || right
|
|
}
|
|
return left
|
|
}
|
|
|
|
/**
|
|
Combines two `Where` predicates together using `OR` operator.
|
|
- returns: `right` if `left` is `nil`, otherwise equivalent to `(left || right)`
|
|
*/
|
|
public static func ||? (left: Where<O>?, right: Where<O>) -> Where<O> {
|
|
|
|
if let left = left {
|
|
|
|
return left || right
|
|
}
|
|
return right
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause with a predicate that always evaluates to `true`
|
|
*/
|
|
public init() {
|
|
|
|
self.init(true)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause with an existing `Where` clause.
|
|
|
|
- parameter clause: the existing `Where` clause.
|
|
*/
|
|
public init(_ clause: Where<O>) {
|
|
|
|
self.init(clause.predicate)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause with a predicate that always evaluates to the specified boolean value
|
|
|
|
- parameter value: the boolean value for the predicate
|
|
*/
|
|
public init(_ value: Bool) {
|
|
|
|
self.init(NSPredicate(value: value))
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause with a predicate using the specified string format and arguments
|
|
|
|
- parameter format: the format string for the predicate
|
|
- parameter args: the arguments for `format`
|
|
*/
|
|
public init(_ format: String, _ args: Any...) {
|
|
|
|
self.init(NSPredicate(format: format, argumentArray: args))
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause with a predicate using the specified string format and arguments
|
|
|
|
- parameter format: the format string for the predicate
|
|
- parameter argumentArray: the arguments for `format`
|
|
*/
|
|
public init(_ format: String, argumentArray: [Any]?) {
|
|
|
|
self.init(NSPredicate(format: format, argumentArray: argumentArray))
|
|
}
|
|
|
|
/**
|
|
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(_ keyPath: KeyPathString, isEqualTo null: Void?) {
|
|
|
|
self.init(NSPredicate(format: "\(keyPath) == nil"))
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter value: the arguments for the `==` operator
|
|
*/
|
|
public init<V: FieldStorableType>(_ keyPath: KeyPathString, isEqualTo value: V) {
|
|
|
|
var nilPredicate: NSPredicate {
|
|
|
|
return NSPredicate(
|
|
format: "\(keyPath) == nil"
|
|
)
|
|
}
|
|
var valuePredicate: NSPredicate {
|
|
|
|
return NSPredicate(
|
|
format: "\(keyPath) == %@",
|
|
argumentArray: [value.cs_toFieldStoredNativeType() as Any]
|
|
)
|
|
}
|
|
switch value {
|
|
|
|
#if swift(>=5.7)
|
|
case let optionalValue as any FieldOptionalType:
|
|
switch optionalValue.cs_wrappedValue {
|
|
|
|
case nil,
|
|
is NSNull:
|
|
self.init(nilPredicate)
|
|
|
|
case _?:
|
|
self.init(valuePredicate)
|
|
}
|
|
|
|
#else
|
|
case nil:
|
|
self.init(nilPredicate)
|
|
|
|
#endif
|
|
|
|
case is NSNull:
|
|
self.init(nilPredicate)
|
|
|
|
case _:
|
|
self.init(valuePredicate)
|
|
}
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter value: the arguments for the `==` operator
|
|
*/
|
|
@_disfavoredOverload
|
|
public init<U: QueryableAttributeType>(_ keyPath: KeyPathString, isEqualTo value: U?) {
|
|
|
|
switch value {
|
|
|
|
case nil,
|
|
is NSNull:
|
|
self.init(NSPredicate(format: "\(keyPath) == nil"))
|
|
|
|
case let value?:
|
|
self.init(NSPredicate(format: "\(keyPath) == %@", argumentArray: [value.cs_toQueryableNativeType()]))
|
|
}
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter object: the arguments for the `==` operator
|
|
*/
|
|
public init<Other: DynamicObject>(_ keyPath: KeyPathString, isEqualTo object: Other?) {
|
|
|
|
switch object {
|
|
|
|
case nil:
|
|
self.init(NSPredicate(format: "\(keyPath) == nil"))
|
|
|
|
case let object?:
|
|
self.init(NSPredicate(format: "\(keyPath) == %@", argumentArray: [object.cs_id()]))
|
|
}
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter objectID: the arguments for the `==` operator
|
|
*/
|
|
public init(_ keyPath: KeyPathString, isEqualTo objectID: NSManagedObjectID) {
|
|
|
|
self.init(NSPredicate(format: "\(keyPath) == %@", argumentArray: [objectID]))
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares membership
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter list: the sequence to check membership of
|
|
*/
|
|
public init<S: Sequence>(_ keyPath: KeyPathString, isMemberOf list: S) where S.Iterator.Element: FieldStorableType {
|
|
|
|
self.init(NSPredicate(format: "\(keyPath) IN %@", list.map({ $0.cs_toFieldStoredNativeType() }) as NSArray))
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares membership
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter list: the sequence to check membership of
|
|
*/
|
|
@_disfavoredOverload
|
|
public init<S: Sequence>(_ keyPath: KeyPathString, isMemberOf list: S) where S.Iterator.Element: QueryableAttributeType {
|
|
|
|
self.init(NSPredicate(format: "\(keyPath) IN %@", list.map({ $0.cs_toQueryableNativeType() }) as NSArray))
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares membership
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter list: the sequence to check membership of
|
|
*/
|
|
public init<S: Sequence>(_ keyPath: KeyPathString, isMemberOf list: S) where S.Iterator.Element: DynamicObject {
|
|
|
|
self.init(NSPredicate(format: "\(keyPath) IN %@", list.map({ $0.cs_id() }) as NSArray))
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares membership
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter list: the sequence to check membership of
|
|
*/
|
|
public init<S: Sequence>(_ keyPath: KeyPathString, isMemberOf list: S) where S.Iterator.Element: NSManagedObjectID {
|
|
|
|
self.init(NSPredicate(format: "\(keyPath) IN %@", list.map({ $0 }) as NSArray))
|
|
}
|
|
|
|
|
|
// MARK: AnyWhereClause
|
|
|
|
public let predicate: NSPredicate
|
|
|
|
public init(_ predicate: NSPredicate) {
|
|
|
|
self.predicate = predicate
|
|
}
|
|
|
|
|
|
// MARK: WhereClauseType
|
|
|
|
public typealias ObjectType = O
|
|
|
|
|
|
// MARK: FetchClause, QueryClause, DeleteClause
|
|
|
|
public func applyToFetchRequest<ResultType>(_ fetchRequest: NSFetchRequest<ResultType>) {
|
|
|
|
if let predicate = fetchRequest.predicate, predicate != self.predicate {
|
|
|
|
Internals.log(
|
|
.warning,
|
|
message: "An existing predicate for the \(Internals.typeName(fetchRequest)) was overwritten by \(Internals.typeName(self)) query clause."
|
|
)
|
|
}
|
|
|
|
fetchRequest.predicate = self.predicate
|
|
}
|
|
|
|
|
|
// MARK: Equatable
|
|
|
|
public static func == (lhs: Where, rhs: Where) -> Bool {
|
|
|
|
return lhs.predicate == rhs.predicate
|
|
}
|
|
|
|
|
|
// MARK: Hashable
|
|
|
|
public func hash(into hasher: inout Hasher) {
|
|
|
|
hasher.combine(self.predicate)
|
|
}
|
|
|
|
|
|
// MARK: Deprecated
|
|
|
|
@available(*, deprecated, renamed: "O")
|
|
public typealias D = O
|
|
}
|
|
|
|
|
|
// MARK: - Where where O: NSManagedObject
|
|
|
|
extension Where where O: NSManagedObject {
|
|
|
|
/**
|
|
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: QueryableAttributeType>(_ keyPath: KeyPath<O, V>, isEqualTo null: Void?) {
|
|
|
|
self.init(keyPath._kvcKeyPathString!, 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<D: DynamicObject>(_ keyPath: KeyPath<O, D>, isEqualTo null: Void?) {
|
|
|
|
self.init(keyPath._kvcKeyPathString!, isEqualTo: null)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter value: the arguments for the `==` operator
|
|
*/
|
|
public init<V: QueryableAttributeType>(_ keyPath: KeyPath<O, V>, isEqualTo value: V?) {
|
|
|
|
self.init(keyPath._kvcKeyPathString!, 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<D: DynamicObject>(_ keyPath: KeyPath<O, D>, isEqualTo value: D?) {
|
|
|
|
self.init(keyPath._kvcKeyPathString!, isEqualTo: value)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter objectID: the arguments for the `==` operator
|
|
*/
|
|
public init<D: DynamicObject>(_ keyPath: KeyPath<O, D>, isEqualTo objectID: NSManagedObjectID) {
|
|
|
|
self.init(keyPath._kvcKeyPathString!, isEqualTo: objectID)
|
|
}
|
|
|
|
/**
|
|
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: QueryableAttributeType, S: Sequence>(_ keyPath: KeyPath<O, V>, isMemberOf list: S) where S.Iterator.Element == V {
|
|
|
|
self.init(keyPath._kvcKeyPathString!, 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<D: DynamicObject, S: Sequence>(_ keyPath: KeyPath<O, D>, isMemberOf list: S) where S.Iterator.Element == D {
|
|
|
|
self.init(keyPath._kvcKeyPathString!, 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<D: DynamicObject, S: Sequence>(_ keyPath: KeyPath<D, O>, isMemberOf list: S) where S.Iterator.Element: NSManagedObjectID {
|
|
|
|
self.init(keyPath._kvcKeyPathString!, isMemberOf: list)
|
|
}
|
|
}
|
|
|
|
|
|
// MARK: - Where where O: CoreStoreObject
|
|
|
|
extension Where where O: CoreStoreObject {
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter value: the arguments for the `==` operator
|
|
*/
|
|
public init<V>(_ 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 that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter value: the arguments for the `==` operator
|
|
*/
|
|
public init<V>(_ keyPath: KeyPath<O, ValueContainer<O>.Required<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>(_ keyPath: KeyPath<O, ValueContainer<O>.Optional<V>>, isEqualTo value: V?) {
|
|
|
|
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, ValueContainer<O>.Optional<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<D>(_ keyPath: KeyPath<O, RelationshipContainer<O>.ToOne<D>>, isEqualTo null: Void?) {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isEqualTo: null)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter value: the arguments for the `==` operator
|
|
*/
|
|
public init<D>(_ keyPath: KeyPath<O, RelationshipContainer<O>.ToOne<D>>, isEqualTo value: D?) {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isEqualTo: value)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares equality
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter objectID: the arguments for the `==` operator
|
|
*/
|
|
public init<D>(_ keyPath: KeyPath<O, RelationshipContainer<O>.ToOne<D>>, isEqualTo objectID: NSManagedObjectID) {
|
|
|
|
self.init(O.meta[keyPath: keyPath].keyPath, isEqualTo: objectID)
|
|
}
|
|
|
|
/**
|
|
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, ValueContainer<O>.Required<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, 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)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares membership
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter list: the sequence to check membership of
|
|
*/
|
|
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)
|
|
}
|
|
|
|
/**
|
|
Initializes a `Where` clause that compares membership
|
|
|
|
- parameter keyPath: the keyPath to compare with
|
|
- parameter list: the sequence to check membership of
|
|
*/
|
|
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)
|
|
}
|
|
|
|
/**
|
|
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 })))
|
|
}
|
|
}
|