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NSManagedObject+Sugar.h
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NSManagedObject+Sugar.h
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//
// NSManagedObject+Sugar.h
//
// Created by Aaron Voisine on 8/22/13.
// Copyright (c) 2013 Aaron Voisine <[email protected]>
//
// 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/CoreData.h>
@interface NSManagedObject (Sugar)
// create objects
+ (instancetype)managedObject;
+ (NSArray *)managedObjectArrayWithLength:(NSUInteger)length;
// fetch existing objects
+ (NSArray *)allObjects;
+ (NSArray *)objectsMatching:(NSString *)predicateFormat, ...;
+ (NSArray *)objectsMatching:(NSString *)predicateFormat arguments:(va_list)args;
+ (NSArray *)objectsSortedBy:(NSString *)key ascending:(BOOL)ascending;
+ (NSArray *)objectsSortedBy:(NSString *)key ascending:(BOOL)ascending offset:(NSUInteger)offset limit:(NSUInteger)lim;
+ (NSArray *)fetchObjects:(NSFetchRequest *)request;
// count existing objects
+ (NSUInteger)countAllObjects;
+ (NSUInteger)countObjectsMatching:(NSString *)predicateFormat, ...;
+ (NSUInteger)countObjectsMatching:(NSString *)predicateFormat arguments:(va_list)args;
+ (NSUInteger)countObjects:(NSFetchRequest *)request;
// delete objects
+ (NSUInteger)deleteObjects:(NSArray *)objects;
// call this before any NSManagedObject+Sugar methods to use a concurrency type other than NSMainQueueConcurrencyType
+ (void)setConcurrencyType:(NSManagedObjectContextConcurrencyType)type;
// set the fetchBatchSize to use when fetching objects, default is 100
+ (void)setFetchBatchSize:(NSUInteger)fetchBatchSize;
// returns the managed object context for the application, or if the context doesn't already exist, creates it and binds
// it to the persistent store coordinator for the application
+ (NSManagedObjectContext *)context;
// sets a different context for NSManagedObject+Sugar methods to use for this type of entity
+ (void)setContext:(NSManagedObjectContext *)context;
+ (void)saveContext; // persists changes (this is called automatically for the main context when the app terminates)
+ (NSString *)entityName; // override this if entity name differs from class name
+ (NSFetchRequest *)fetchRequest;
+ (NSFetchedResultsController *)fetchedResultsController:(NSFetchRequest *)request;
- (id)objectForKeyedSubscript:(id<NSCopying>)key; // id value = entity[@"key"]; thread safe valueForKey:
- (void)setObject:(id)obj forKeyedSubscript:(id<NSCopying>)key; // entity[@"key"] = value; thread safe setValue:forKey:
- (void)deleteObject;
@end