WIP: custom migration

Sources/Internal/EntityIdentifier.swift

@@ -74,7 +74,7 @@ internal struct EntityIdentifier: Hashable {
     
     internal init(_ entityDescription: NSEntityDescription) {
         
-        if let anyEntity = entityDescription.anyEntity {
+        if let anyEntity = entityDescription.coreStoreEntity {
             
             self.category = .coreStore
             self.interfacedClassName = NSStringFromClass(anyEntity.type)

Sources/Internal/NSEntityDescription+DynamicModel.swift

@@ -32,7 +32,7 @@ import Foundation
 internal extension NSEntityDescription {
     
     @nonobjc
-    internal var anyEntity: CoreStoreSchema.AnyEntity? {
+    internal var coreStoreEntity: CoreStoreSchema.AnyEntity? {
         
         get {
             

Sources/Internal/NSEntityDescription+Migration.swift

@@ -0,0 +1,55 @@
+//
+//  NSEntityDescription+Migration.swift
+//  CoreStore
+//
+//  Copyright © 2017 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 CoreData
+import Foundation
+
+
+// MARK: - NSEntityDescription
+
+internal extension NSEntityDescription {
+    
+    @nonobjc
+    internal func cs_resolvedAttributeRenamingIdentities() -> [String: (attribute: NSAttributeDescription, versionHash: Data)] {
+        
+        var mapping: [String: (attribute: NSAttributeDescription, versionHash: Data)] = [:]
+        for (attributeName, attributeDescription) in self.attributesByName {
+            
+            mapping[attributeDescription.renamingIdentifier ?? attributeName] = (attributeDescription, attributeDescription.versionHash)
+        }
+        return mapping
+    }
+    
+    @nonobjc
+    internal func cs_resolvedRelationshipRenamingIdentities() -> [String: (relationship: NSRelationshipDescription, versionHash: Data)] {
+        
+        var mapping: [String: (relationship: NSRelationshipDescription, versionHash: Data)] = [:]
+        for (relationshipName, relationshipDescription) in self.relationshipsByName {
+            
+            mapping[relationshipDescription.renamingIdentifier ?? relationshipName] = (relationshipDescription, relationshipDescription.versionHash)
+        }
+        return mapping
+    }
+}

Sources/Internal/NSManagedObjectModel+Migration.swift

@@ -0,0 +1,44 @@
+//
+//  NSManagedObjectModel+Migration.swift
+//  CoreStore
+//
+//  Copyright © 2017 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 CoreData
+import Foundation
+
+
+// MARK: - FilePrivate
+
+internal extension NSManagedObjectModel {
+    
+    @nonobjc
+    internal func cs_resolvedRenamingIdentities() -> [String: (entity: NSEntityDescription, versionHash: Data)] {
+        
+        var mapping: [String: (entity: NSEntityDescription, versionHash: Data)] = [:]
+        for (entityName, entityDescription) in self.entitiesByName {
+            
+            mapping[entityDescription.renamingIdentifier ?? entityName] = (entityDescription, entityDescription.versionHash)
+        }
+        return mapping
+    }
+}