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Code Issues 95 Packages Projects Releases 10 Wiki Activity

smart way to load entityNames from the model file

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This commit is contained in:
John Rommel Estropia
2015-02-22 22:01:23 +09:00
parent f6ced13577
commit 8f77818015
8 changed files with 88 additions and 44 deletions
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33
HardcoreData/DataStack.swift
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@@ -38,14 +38,14 @@ private let applicationName = ((NSBundle.mainBundle().objectForInfoDictionaryKey
/**
The DataStack encapsulates the data model for the Core Data stack. Each DataStack can have multiple data stores, usually specified as a "Configuration" in the model editor. Behind the scenes, the DataStack manages its own NSPersistentStoreCoordinator, a root NSManagedObjectContext for disk saves, and a shared NSManagedObjectContext acting as a model interface for NSManagedObjects.
*/
public class DataStack: NSObject {
public class DataStack {
// MARK: Public
/**
Initializes a DataStack from merged model in the app bundle.
*/
public convenience override init() {
public convenience init() {
self.init(managedObjectModel: NSManagedObjectModel.mergedModelFromBundles(NSBundle.allBundles())!)
}
@@ -74,8 +74,18 @@ public class DataStack: NSObject {
self.rootSavingContext = NSManagedObjectContext.rootSavingContextForCoordinator(self.coordinator)
self.mainContext = NSManagedObjectContext.mainContextForRootContext(self.rootSavingContext)
self.transactionQueue = .createSerial("com.hardcoredata.datastack.transactionqueue")
self.entityNameMapping = (managedObjectModel.entities as! [NSEntityDescription]).reduce([EntityClassNameType: EntityNameType]()) { (var mapping, entityDescription) in
if let entityName = entityDescription.name {
mapping[entityDescription.managedObjectClassName] = entityName
}
return mapping
}
super.init()
println(self.entityNameMapping)
self.rootSavingContext.parentStack = self
}
/**
@@ -133,10 +143,14 @@ public class DataStack: NSObject {
public func addSQLiteStore(fileName: String, configuration: String? = nil, automigrating: Bool = true, resetStoreOnMigrationFailure: Bool = false) -> PersistentStoreResult {
return self.addSQLiteStore(
fileURL: applicationSupportDirectory.URLByAppendingPathComponent(fileName, isDirectory: false),
fileURL: applicationSupportDirectory.URLByAppendingPathComponent(
fileName,
isDirectory: false
),
configuration: configuration,
automigrating: automigrating,
resetStoreOnMigrationFailure: resetStoreOnMigrationFailure)
resetStoreOnMigrationFailure: resetStoreOnMigrationFailure
)
}
/**
@@ -257,9 +271,18 @@ public class DataStack: NSObject {
internal let mainContext: NSManagedObjectContext
internal let transactionQueue: GCDQueue;
internal func entityNameForEntityClass(entityClass: NSManagedObject.Type) -> String? {
return self.entityNameMapping[NSStringFromClass(entityClass)]
}
// MARK: Private
private typealias EntityClassNameType = String
private typealias EntityNameType = String
private let coordinator: NSPersistentStoreCoordinator
private let rootSavingContext: NSManagedObjectContext
private let entityNameMapping: [EntityClassNameType: EntityNameType]
}