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testing some ways to make querying as elegant as possible

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This commit is contained in:
John Rommel Estropia
2014-12-13 10:06:16 +09:00
parent 8010daa161
commit 45a65d9262
12 changed files with 604 additions and 175 deletions
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58
HardcoreData/NSManagedObject+HardcoreData.swift
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@@ -28,18 +28,67 @@ import CoreData
public extension NSManagedObject {
// MARK: - Entity Utilities
public class var entityName: String {
return NSStringFromClass(self).componentsSeparatedByString(".").last!
}
public class func createInContext(context: NSManagedObjectContext) -> Self {
public func inContext(context: NSManagedObjectContext) -> Self? {
return self.typedObjectInContext(context)
}
public func deleteFromContext() {
self.managedObjectContext?.deleteObject(self)
}
// MARK: Querying
public class func WHERE(predicate: NSPredicate) -> Query<NSManagedObject> {
return Query(entity: self).WHERE(predicate)
}
public class func WHERE(value: Bool) -> Query<NSManagedObject> {
return self.WHERE(NSPredicate(value: value))
}
public class func WHERE(format: String, _ args: CVarArgType...) -> Query<NSManagedObject> {
return self.WHERE(NSPredicate(format: format, arguments: withVaList(args, { $0 })))
}
public class func WHERE(format: String, argumentArray: [AnyObject]?) -> Query<NSManagedObject> {
return self.WHERE(NSPredicate(format: format, argumentArray: argumentArray))
}
public class func SORTEDBY(order: [SortOrder]) -> Query<NSManagedObject> {
return Query(entity: self).SORTEDBY(order)
}
public class func SORTEDBY(order: SortOrder, _ subOrder: SortOrder...) -> Query<NSManagedObject> {
return self.SORTEDBY([order] + subOrder)
}
// MARK: - Internal
internal class func createInContext(context: NSManagedObjectContext) -> Self {
return self(entity: NSEntityDescription.entityForName(self.entityName, inManagedObjectContext: context)!,
insertIntoManagedObjectContext: context)
}
public func inContext<T: NSManagedObject>(context: NSManagedObjectContext) -> T? {
private func typedObjectInContext<T: NSManagedObject>(context: NSManagedObjectContext) -> T? {
let objectID = self.objectID
if objectID.temporaryID {
@@ -65,9 +114,4 @@ public extension NSManagedObject {
"Failed to load existing NSManagedObject in context.")
return nil;
}
public func deleteFromContext() {
self.managedObjectContext?.deleteObject(self)
}
}