WIP: prototype for ManagedObjectProtocol

Sources/Setup/Dynamic Models/ObjectModel.swift

@@ -0,0 +1,76 @@
+//
+//  ObjectModel.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 CoreGraphics
+import Foundation
+
+
+// MARK: - ObjectModel
+
+public final class ObjectModel {
+    
+    public let version: String
+    
+    public convenience init(version: String, entities: [EntityProtocol]) {
+        
+        self.init(version: version, configurationEntities: [DataStack.defaultConfigurationName: entities])
+    }
+    
+    public required init(version: String, configurationEntities: [String: [EntityProtocol]]) {
+        
+        self.version = version
+        
+        var entityConfigurations: [String: Set<NSEntityDescription>] = [:]
+        for (configuration, entities) in configurationEntities {
+            
+            entityConfigurations[configuration] = Set(entities.map({ $0.entityDescription }))
+        }
+        let allEntities = Set(entityConfigurations.map({ $0.value }).joined())
+        entityConfigurations[DataStack.defaultConfigurationName] = allEntities
+        
+        self.entityConfigurations = entityConfigurations
+        self.entities = allEntities
+    }
+    
+    
+    // MARK: Internal
+    
+    internal let entities: Set<NSEntityDescription>
+    internal let entityConfigurations: [String: Set<NSEntityDescription>]
+    
+    internal func createModel() -> NSManagedObjectModel {
+        
+        let model = NSManagedObjectModel()
+        model.entities = self.entities.sorted(by: { $0.name! < $1.name! })
+        for (configuration, entities) in self.entityConfigurations {
+            
+            model.setEntities(
+                entities.sorted(by: { $0.name! < $1.name! }),
+                forConfigurationName: configuration
+            )
+        }
+        return model
+    }
+}