mirror of
https://github.com/JohnEstropia/CoreStore.git
synced 2026-04-30 20:44:20 +02:00
goodbye ObjectiveC
This commit is contained in:
John Estropia
@@ -29,147 +29,63 @@ import CoreData
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// MARK: - CSSelectTerm
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/**
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The `CSSelectTerm` serves as the Objective-C bridging type for `SelectTerm`.
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- SeeAlso: `SelectTerm`
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*/
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@available(*, unavailable, message: "CoreStore Objective-C is now obsoleted in preparation for Swift concurrency.")
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@objc
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public final class CSSelectTerm: NSObject {
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/**
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Provides a `CSSelectTerm` to a `CSSelect` clause for querying an entity attribute.
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```
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NSString *fullName = [CSCoreStore
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queryValueFrom:[CSFrom entityClass:[MyPersonEntity class]]
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select:CSSelectString(CSAttribute(@"fullname"))
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fetchClauses:@[[CSWhere keyPath:@"employeeID" isEqualTo: @1111]]];
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```
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- parameter keyPath: the attribute name
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*/
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@objc
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public convenience init(keyPath: KeyPathString) {
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self.init(.attribute(keyPath))
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fatalError()
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}
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/**
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Provides a `CSSelectTerm` to a `CSSelect` clause for querying the average value of an attribute.
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```
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NSNumber *averageAge = [CSCoreStore
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queryValueFrom:[CSFrom entityClass:[MyPersonEntity class]]
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select:[CSSelect numberForTerm:[CSSelectTerm average:@"age" as:nil]]];
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```
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- parameter keyPath: the attribute name
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- parameter `as`: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "average(<attributeName>)" is used
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- returns: a `CSSelectTerm` to a `CSSelect` clause for querying the average value of an attribute
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*/
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@objc
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public static func average(_ keyPath: KeyPathString, as alias: KeyPathString?) -> CSSelectTerm {
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return self.init(.average(keyPath, as: alias))
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fatalError()
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}
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/**
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Provides a `CSSelectTerm` to a `CSSelect` clause for a count query.
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```
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NSNumber *numberOfEmployees = [CSCoreStore
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queryValueFrom:[CSFrom entityClass:[MyPersonEntity class]]
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select:[CSSelect numberForTerm:[CSSelectTerm count:@"employeeID" as:nil]]];
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```
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- parameter keyPath: the attribute name
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- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "count(<attributeName>)" is used
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- returns: a `SelectTerm` to a `Select` clause for a count query
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*/
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@objc
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public static func count(_ keyPath: KeyPathString, as alias: KeyPathString?) -> CSSelectTerm {
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return self.init(.count(keyPath, as: alias))
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fatalError()
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}
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/**
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Provides a `CSSelectTerm` to a `CSSelect` clause for querying the maximum value for an attribute.
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```
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NSNumber *maximumAge = [CSCoreStore
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queryValueFrom:[CSFrom entityClass:[MyPersonEntity class]]
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select:[CSSelect numberForTerm:[CSSelectTerm maximum:@"age" as:nil]]];
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```
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- parameter keyPath: the attribute name
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- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "max(<attributeName>)" is used
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- returns: a `CSSelectTerm` to a `CSSelect` clause for querying the maximum value for an attribute
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*/
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@objc
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public static func maximum(_ keyPath: KeyPathString, as alias: KeyPathString?) -> CSSelectTerm {
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return self.init(.maximum(keyPath, as: alias))
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fatalError()
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}
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/**
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Provides a `CSSelectTerm` to a `CSSelect` clause for querying the minimum value for an attribute.
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```
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NSNumber *minimumAge = [CSCoreStore
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queryValueFrom:[CSFrom entityClass:[MyPersonEntity class]]
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select:[CSSelect numberForTerm:[CSSelectTerm minimum:@"age" as:nil]]];
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```
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- parameter keyPath: the attribute name
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- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "min(<attributeName>)" is used
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- returns: a `CSSelectTerm` to a `CSSelect` clause for querying the minimum value for an attribute
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*/
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@objc
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public static func minimum(_ keyPath: KeyPathString, as alias: KeyPathString?) -> CSSelectTerm {
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return self.init(.minimum(keyPath, as: alias))
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fatalError()
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}
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/**
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Provides a `CSSelectTerm` to a `CSSelect` clause for querying the sum value for an attribute.
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```
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NSNumber *totalAge = [CSCoreStore
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queryValueFrom:[CSFrom entityClass:[MyPersonEntity class]]
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select:[CSSelect numberForTerm:[CSSelectTerm sum:@"age" as:nil]]];
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```
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- parameter keyPath: the attribute name
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- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "sum(<attributeName>)" is used
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- returns: a `CSSelectTerm` to a `CSSelect` clause for querying the sum value for an attribute
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*/
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@objc
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public static func sum(_ keyPath: KeyPathString, as alias: KeyPathString?) -> CSSelectTerm {
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return self.init(.sum(keyPath, as: alias))
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fatalError()
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}
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/**
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Provides a `CSSelectTerm` to a `CSSelect` clause for querying the `NSManagedObjectID`.
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```
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NSManagedObjectID *objectID = [CSCoreStore
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queryValueFrom:[CSFrom entityClass:[MyPersonEntity class]]
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select:[CSSelect objectIDForTerm:[CSSelectTerm objectIDAs:nil]]
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fetchClauses:@[[CSWhere keyPath:@"employeeID" isEqualTo: @1111]]];
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```
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- parameter alias: the dictionary key to use to access the result. Ignored when the query return value is not an `NSDictionary`. If `nil`, the default key "objecID" is used
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- returns: a `SelectTerm` to a `Select` clause for querying the sum value for an attribute
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*/
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@objc
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public static func objectIDAs(_ alias: KeyPathString? = nil) -> CSSelectTerm {
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return self.init(.objectID(as: alias))
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fatalError()
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}
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// MARK: NSObject
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public override var hash: Int {
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return self.bridgeToSwift.hashValue
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fatalError()
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}
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public override func isEqual(_ object: Any?) -> Bool {
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guard let object = object as? CSSelectTerm else {
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return false
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}
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return self.bridgeToSwift == object.bridgeToSwift
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fatalError()
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}
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@@ -178,344 +94,122 @@ public final class CSSelectTerm: NSObject {
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public let bridgeToSwift: SelectTerm<NSManagedObject>
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public init<O: NSManagedObject>(_ swiftValue: SelectTerm<O>) {
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self.bridgeToSwift = swiftValue.downcast()
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super.init()
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fatalError()
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}
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}
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// MARK: - SelectTerm
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@available(*, unavailable, message: "CoreStore Objective-C is now obsoleted in preparation for Swift concurrency.")
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extension SelectTerm where O: NSManagedObject {
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// MARK: CoreStoreSwiftType
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public var bridgeToObjectiveC: CSSelectTerm {
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return CSSelectTerm(self)
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}
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// MARK: FilePrivate
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fileprivate func downcast() -> SelectTerm<NSManagedObject> {
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switch self {
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case ._attribute(let keyPath):
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return SelectTerm<NSManagedObject>._attribute(keyPath)
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case ._aggregate(let function, let keyPath, let alias, let nativeType):
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return SelectTerm<NSManagedObject>._aggregate(function: function, keyPath: keyPath, alias: alias, nativeType: nativeType)
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case ._identity(let alias, let nativeType):
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return SelectTerm<NSManagedObject>._identity(alias: alias, nativeType: nativeType)
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}
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fatalError()
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}
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}
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// MARK: - CSSelect
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/**
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The `CSSelect` serves as the Objective-C bridging type for `Select`.
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- SeeAlso: `Select`
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*/
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@available(*, unavailable, message: "CoreStore Objective-C is now obsoleted in preparation for Swift concurrency.")
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@objc
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public final class CSSelect: NSObject {
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/**
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Creates a `CSSelect` clause for querying `NSNumber` values.
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```
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NSNumber *maxAge = [CSCoreStore
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queryValueFrom:CSFromClass([MyPersonEntity class])
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select:CSSelectNumber(CSAggregateMax(@"age"))
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// ...
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```
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- parameter numberTerm: the `CSSelectTerm` specifying the attribute/aggregate value to query
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*/
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@objc
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public convenience init(numberTerm: CSSelectTerm) {
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self.init(Select<NSManagedObject, NSNumber>(numberTerm.bridgeToSwift))
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fatalError()
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}
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/**
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Creates a `CSSelect` clause for querying `NSDecimalNumber` values.
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```
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NSDecimalNumber *averagePrice = [CSCoreStore
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queryValueFrom:CSFromClass([MyPersonEntity class])
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select:CSSelectDecimal(CSAggregateAverage(@"price"))
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// ...
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```
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- parameter decimalTerm: the `CSSelectTerm` specifying the attribute/aggregate value to query
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*/
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@objc
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public convenience init(decimalTerm: CSSelectTerm) {
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self.init(Select<NSManagedObject, NSDecimalNumber>(decimalTerm.bridgeToSwift))
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fatalError()
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}
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/**
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Creates a `CSSelect` clause for querying `NSString` values.
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```
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NSString *fullname = [CSCoreStore
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queryValueFrom:CSFromClass([MyPersonEntity class])
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select:CSSelectString(CSAttribute(@"fullname"))
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// ...
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```
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- parameter stringTerm: the `CSSelectTerm` specifying the attribute/aggregate value to query
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*/
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@objc
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public convenience init(stringTerm: CSSelectTerm) {
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self.init(Select<NSManagedObject, NSString>(stringTerm.bridgeToSwift))
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fatalError()
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}
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/**
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Creates a `CSSelect` clause for querying `NSDate` values.
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```
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NSDate *lastUpdate = [CSCoreStore
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queryValueFrom:CSFromClass([MyPersonEntity class])
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select:CSSelectDate(CSAggregateMax(@"updatedDate"))
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// ...
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```
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- parameter dateTerm: the `CSSelectTerm` specifying the attribute/aggregate value to query
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*/
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@objc
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public convenience init(dateTerm: CSSelectTerm) {
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self.init(Select<NSManagedObject, Date>(dateTerm.bridgeToSwift))
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fatalError()
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}
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/**
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Creates a `CSSelect` clause for querying `NSData` values.
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```
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NSData *imageData = [CSCoreStore
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queryValueFrom:CSFromClass([MyPersonEntity class])
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select:CSSelectData(CSAttribute(@"imageData"))
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// ...
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```
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- parameter dataTerm: the `CSSelectTerm` specifying the attribute/aggregate value to query
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*/
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@objc
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public convenience init(dataTerm: CSSelectTerm) {
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self.init(Select<NSManagedObject, Data>(dataTerm.bridgeToSwift))
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fatalError()
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}
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/**
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Creates a `CSSelect` clause for querying `NSManagedObjectID` values.
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```
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NSManagedObjectID *objectID = [CSCoreStore
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queryValueFrom:CSFromClass([MyPersonEntity class])
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select:CSSelectObjectID()
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// ...
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```
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*/
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@objc
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public convenience init(objectIDTerm: ()) {
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self.init(Select<NSManagedObject, NSManagedObjectID>(.objectID()))
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fatalError()
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}
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/**
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Creates a `CSSelect` clause for querying `NSDictionary` of an entity's attribute keys and values.
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```
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NSDictionary *keyValues = [CSCoreStore
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queryValueFrom:[CSFrom entityClass:[MyPersonEntity class]]
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select:[CSSelect dictionaryForTerm:[CSSelectTerm maximum:@"age" as:nil]]];
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```
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- parameter term: the `CSSelectTerm` specifying the attribute/aggregate value to query
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- returns: a `CSSelect` clause for querying an entity attribute
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*/
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@objc
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public static func dictionaryForTerm(_ term: CSSelectTerm) -> CSSelect {
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return self.init(Select<NSManagedObject, NSDictionary>(term.bridgeToSwift))
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fatalError()
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}
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|
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/**
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Creates a `CSSelect` clause for querying `NSDictionary` of an entity's attribute keys and values.
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```
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NSDictionary *keyValues = [CSCoreStore
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queryValueFrom:[CSFrom entityClass:[MyPersonEntity class]]
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select:[CSSelect dictionaryForTerms:@[
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[CSSelectTerm attribute:@"name" as:nil],
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[CSSelectTerm attribute:@"age" as:nil]
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]]];
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```
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- parameter terms: the `CSSelectTerm`s specifying the attribute/aggregate values to query
|
||||
- returns: a `CSSelect` clause for querying an entity attribute
|
||||
*/
|
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|
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@objc
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public static func dictionaryForTerms(_ terms: [CSSelectTerm]) -> CSSelect {
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return self.init(Select<NSManagedObject, NSDictionary>(terms.map { $0.bridgeToSwift }))
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fatalError()
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}
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|
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// MARK: NSObject
|
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public override var hash: Int {
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return self.attributeType.hashValue
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^ self.selectTerms.map { $0.hashValue }.reduce(0, ^)
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fatalError()
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}
|
||||
|
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public override func isEqual(_ object: Any?) -> Bool {
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|
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guard let object = object as? CSSelect else {
|
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|
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return false
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}
|
||||
return self.attributeType == object.attributeType
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&& self.selectTerms == object.selectTerms
|
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|
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fatalError()
|
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}
|
||||
|
||||
public override var description: String {
|
||||
|
||||
return "(\(String(reflecting: Self.self))) \(self.bridgeToSwift.coreStoreDumpString)"
|
||||
|
||||
fatalError()
|
||||
}
|
||||
|
||||
|
||||
// MARK: CoreStoreObjectiveCType
|
||||
|
||||
public init<O: NSManagedObject, T: QueryableAttributeType>(_ swiftValue: Select<O, T>) {
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||||
|
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self.attributeType = T.cs_rawAttributeType
|
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self.selectTerms = swiftValue.selectTerms.map({ $0.downcast() })
|
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self.bridgeToSwift = swiftValue
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||||
super.init()
|
||||
|
||||
fatalError()
|
||||
}
|
||||
|
||||
public init<O: NSManagedObject, T>(_ swiftValue: Select<O, T>) {
|
||||
|
||||
self.attributeType = .undefinedAttributeType
|
||||
self.selectTerms = swiftValue.selectTerms.map({ $0.downcast() })
|
||||
self.bridgeToSwift = swiftValue
|
||||
super.init()
|
||||
|
||||
fatalError()
|
||||
}
|
||||
|
||||
|
||||
// MARK: Internal
|
||||
|
||||
internal let attributeType: NSAttributeType
|
||||
internal let selectTerms: [SelectTerm<NSManagedObject>]
|
||||
|
||||
|
||||
// MARK: Internal
|
||||
|
||||
internal func applyToFetchRequest(_ fetchRequest: NSFetchRequest<NSFetchRequestResult>) {
|
||||
|
||||
fetchRequest.includesPendingChanges = false
|
||||
fetchRequest.resultType = .dictionaryResultType
|
||||
|
||||
func attributeDescription(for keyPath: String, in entity: NSEntityDescription) -> NSAttributeDescription? {
|
||||
|
||||
let components = keyPath.components(separatedBy: ".")
|
||||
switch components.count {
|
||||
|
||||
case 0:
|
||||
return nil
|
||||
|
||||
case 1:
|
||||
return entity.attributesByName[components[0]]
|
||||
|
||||
default:
|
||||
guard let relationship = entity.relationshipsByName[components[0]],
|
||||
let destinationEntity = relationship.destinationEntity else {
|
||||
|
||||
return nil
|
||||
}
|
||||
return attributeDescription(
|
||||
for: components.dropFirst().joined(separator: "."),
|
||||
in: destinationEntity
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
var propertiesToFetch = [Any]()
|
||||
for term in self.selectTerms {
|
||||
|
||||
switch term {
|
||||
|
||||
case ._attribute(let keyPath):
|
||||
propertiesToFetch.append(keyPath)
|
||||
|
||||
case ._aggregate(let function, let keyPath, let alias, let nativeType):
|
||||
let entityDescription = fetchRequest.entity!
|
||||
if let attributeDescription = attributeDescription(for: keyPath, in: entityDescription) {
|
||||
|
||||
let expressionDescription = NSExpressionDescription()
|
||||
expressionDescription.name = alias
|
||||
if nativeType == .undefinedAttributeType {
|
||||
|
||||
expressionDescription.expressionResultType = attributeDescription.attributeType
|
||||
}
|
||||
else {
|
||||
|
||||
expressionDescription.expressionResultType = nativeType
|
||||
}
|
||||
expressionDescription.expression = NSExpression(
|
||||
forFunction: function,
|
||||
arguments: [NSExpression(forKeyPath: keyPath)]
|
||||
)
|
||||
propertiesToFetch.append(expressionDescription)
|
||||
}
|
||||
else {
|
||||
|
||||
Internals.log(
|
||||
.warning,
|
||||
message: "The key path \"\(keyPath)\" could not be resolved in entity \(Internals.typeName(entityDescription.managedObjectClassName)) as an attribute and will be ignored by \(Internals.typeName(self)) query clause."
|
||||
)
|
||||
}
|
||||
|
||||
case ._identity(let alias, let nativeType):
|
||||
let expressionDescription = NSExpressionDescription()
|
||||
expressionDescription.name = alias
|
||||
if nativeType == .undefinedAttributeType {
|
||||
|
||||
expressionDescription.expressionResultType = .objectIDAttributeType
|
||||
}
|
||||
else {
|
||||
|
||||
expressionDescription.expressionResultType = nativeType
|
||||
}
|
||||
expressionDescription.expression = NSExpression.expressionForEvaluatedObject()
|
||||
|
||||
propertiesToFetch.append(expressionDescription)
|
||||
}
|
||||
}
|
||||
|
||||
fetchRequest.propertiesToFetch = propertiesToFetch
|
||||
}
|
||||
|
||||
|
||||
// MARK: Private
|
||||
|
||||
private let bridgeToSwift: CoreStoreDebugStringConvertible
|
||||
}
|
||||
|
||||
|
||||
// MARK: - Select
|
||||
|
||||
@available(*, unavailable, message: "CoreStore Objective-C is now obsoleted in preparation for Swift concurrency.")
|
||||
extension Select where O: NSManagedObject {
|
||||
|
||||
// MARK: CoreStoreSwiftType
|
||||
|
||||
public var bridgeToObjectiveC: CSSelect {
|
||||
|
||||
return CSSelect(self)
|
||||
}
|
||||
|
||||
|
||||
// MARK: FilePrivate
|
||||
|
||||
fileprivate func downcast() -> Select<NSManagedObject, T> {
|
||||
|
||||
return Select<NSManagedObject, T>(self.selectTerms.map({ $0.downcast() }))
|
||||
|
||||
fatalError()
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user