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Field.Coded implementations for transformable attributes

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This commit is contained in:
John Estropia
2020-01-18 16:22:06 +09:00
parent 43f61359da
commit bcc2d9def3
22 changed files with 1505 additions and 101 deletions
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66
Sources/CoreStoreSchema.swift
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@@ -209,20 +209,23 @@ public final class CoreStoreSchema: DynamicSchema {
let rawModel = NSManagedObjectModel()
var entityDescriptionsByEntity: [DynamicEntity: NSEntityDescription] = [:]
var allCustomGettersSetters: [DynamicEntity: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter]] = [:]
var allFieldCoders: [DynamicEntity: [KeyPathString: Internals.AnyFieldCoder]] = [:]
for entity in self.allEntities {
let (entityDescription, customGetterSetterByKeyPaths) = self.entityDescription(
let (entityDescription, customGetterSetterByKeyPaths, fieldCoders) = self.entityDescription(
for: entity,
initializer: CoreStoreSchema.firstPassCreateEntityDescription(from:in:)
)
entityDescriptionsByEntity[entity] = (entityDescription.copy() as! NSEntityDescription)
allCustomGettersSetters[entity] = customGetterSetterByKeyPaths
allFieldCoders[entity] = fieldCoders
}
CoreStoreSchema.secondPassConnectRelationshipAttributes(for: entityDescriptionsByEntity)
CoreStoreSchema.thirdPassConnectInheritanceTreeAndIndexes(for: entityDescriptionsByEntity)
CoreStoreSchema.fourthPassSynthesizeManagedObjectClasses(
for: entityDescriptionsByEntity,
allCustomGettersSetters: allCustomGettersSetters
allCustomGettersSetters: allCustomGettersSetters,
allFieldCoders: allFieldCoders
)
rawModel.entities = entityDescriptionsByEntity.values.sorted(by: { $0.name! < $1.name! })
@@ -254,22 +257,46 @@ public final class CoreStoreSchema: DynamicSchema {
private var entityDescriptionsByEntity: [DynamicEntity: NSEntityDescription] = [:]
private var customGettersSettersByEntity: [DynamicEntity: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter]] = [:]
private var fieldCodersByEntity: [DynamicEntity: [KeyPathString: Internals.AnyFieldCoder]] = [:]
private weak var cachedRawModel: NSManagedObjectModel?
private func entityDescription(for entity: DynamicEntity, initializer: (DynamicEntity, ModelVersion) -> (entity: NSEntityDescription, customGetterSetterByKeyPaths: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter])) -> (entity: NSEntityDescription, customGetterSetterByKeyPaths: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter]) {
private func entityDescription(
for entity: DynamicEntity,
initializer: (DynamicEntity, ModelVersion) -> (
entity: NSEntityDescription,
customGetterSetterByKeyPaths: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter],
fieldCoders: [KeyPathString: Internals.AnyFieldCoder]
)
) -> (
entity: NSEntityDescription,
customGetterSetterByKeyPaths: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter],
fieldCoders: [KeyPathString: Internals.AnyFieldCoder]
) {
if let cachedEntityDescription = self.entityDescriptionsByEntity[entity] {
return (cachedEntityDescription, self.customGettersSettersByEntity[entity] ?? [:])
return (
cachedEntityDescription,
self.customGettersSettersByEntity[entity] ?? [:],
self.fieldCodersByEntity[entity] ?? [:]
)
}
let modelVersion = self.modelVersion
let (entityDescription, customGetterSetterByKeyPaths) = withoutActuallyEscaping(initializer, do: { $0(entity, modelVersion) })
let (entityDescription, customGetterSetterByKeyPaths, fieldCoders) = withoutActuallyEscaping(
initializer,
do: { $0(entity, modelVersion) }
)
self.entityDescriptionsByEntity[entity] = entityDescription
self.customGettersSettersByEntity[entity] = customGetterSetterByKeyPaths
return (entityDescription, customGetterSetterByKeyPaths)
self.fieldCodersByEntity[entity] = fieldCoders
return (entityDescription, customGetterSetterByKeyPaths, fieldCoders)
}
private static func firstPassCreateEntityDescription(from entity: DynamicEntity, in modelVersion: ModelVersion) -> (entity: NSEntityDescription, customGetterSetterByKeyPaths: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter]) {
private static func firstPassCreateEntityDescription(from entity: DynamicEntity, in modelVersion: ModelVersion) -> (
entity: NSEntityDescription,
customGetterSetterByKeyPaths: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter],
fieldCoders: [KeyPathString: Internals.AnyFieldCoder]
) {
let entityDescription = NSEntityDescription()
entityDescription.coreStoreEntity = entity
@@ -280,6 +307,7 @@ public final class CoreStoreSchema: DynamicSchema {
var keyPathsByAffectedKeyPaths: [KeyPathString: Set<KeyPathString>] = [:]
var customGetterSetterByKeyPaths: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter] = [:]
var fieldCoders: [KeyPathString: Internals.AnyFieldCoder] = [:]
func createProperties(for type: CoreStoreObject.Type) -> [NSPropertyDescription] {
var propertyDescriptions: [NSPropertyDescription] = []
@@ -302,9 +330,15 @@ public final class CoreStoreSchema: DynamicSchema {
description.allowsExternalBinaryDataStorage = entityDescriptionValues.allowsExternalBinaryDataStorage
description.versionHashModifier = entityDescriptionValues.versionHashModifier
description.renamingIdentifier = entityDescriptionValues.renamingIdentifier
let valueTransformer = entityDescriptionValues.valueTransformer
description.valueTransformerName = valueTransformer?.transformerName.rawValue
propertyDescriptions.append(description)
keyPathsByAffectedKeyPaths[attribute.keyPath] = entityDescriptionValues.affectedByKeyPaths
customGetterSetterByKeyPaths[attribute.keyPath] = (attribute.getter, attribute.setter)
fieldCoders[attribute.keyPath] = valueTransformer
case let attribute as AttributeProtocol:
Internals.assert(
@@ -350,7 +384,7 @@ public final class CoreStoreSchema: DynamicSchema {
}
entityDescription.properties = createProperties(for: entity.type as! CoreStoreObject.Type)
entityDescription.keyPathsByAffectedKeyPaths = keyPathsByAffectedKeyPaths
return (entityDescription, customGetterSetterByKeyPaths)
return (entityDescription, customGetterSetterByKeyPaths, fieldCoders)
}
private static func secondPassConnectRelationshipAttributes(for entityDescriptionsByEntity: [DynamicEntity: NSEntityDescription]) {
@@ -523,7 +557,11 @@ public final class CoreStoreSchema: DynamicSchema {
}
}
private static func fourthPassSynthesizeManagedObjectClasses(for entityDescriptionsByEntity: [DynamicEntity: NSEntityDescription], allCustomGettersSetters: [DynamicEntity: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter]]) {
private static func fourthPassSynthesizeManagedObjectClasses(
for entityDescriptionsByEntity: [DynamicEntity: NSEntityDescription],
allCustomGettersSetters: [DynamicEntity: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter]],
allFieldCoders: [DynamicEntity: [KeyPathString: Internals.AnyFieldCoder]]
) {
func createManagedObjectSubclass(for entityDescription: NSEntityDescription, customGetterSetterByKeyPaths: [KeyPathString: CoreStoreManagedObject.CustomGetterSetter]?) {
@@ -636,5 +674,13 @@ public final class CoreStoreSchema: DynamicSchema {
customGetterSetterByKeyPaths: allCustomGettersSetters[dynamicEntity]
)
}
_ = allFieldCoders
.flatMap({ (_, values) in values })
.reduce(
into: [:] as [NSValueTransformerName: Internals.AnyFieldCoder],
{ (result, element) in result[element.value.transformerName] = element.value }
)
.forEach({ (_, fieldCoder) in fieldCoder.register() })
}
}