TextExpander snippet for a category for a generated Core Data class. Fill in name of class and name of entity.

CoreDataOperationsCategory.txt

// %filltext:name=ClassName:default=ManagedObject%+Operations.h
// (for entity %filltext:name=EntityName:default=Entity%)

#import "%filltext:name=ClassName:default=ManagedObject%.h"

// Category of operations on %filltext:name=ClassName:default=ManagedObject% that are not automatically generated.
//
// Defining these operations in a category lets us re-generate %filltext:name=ClassName:default=ManagedObject%.h and
// %filltext:name=ClassName:default=ManagedObject%.m whenever the schema changes.
@interface %filltext:name=ClassName:default=ManagedObject% (Operations)

// Return the managed object model entity name ("%filltext:name=EntityName:default=Entity%") for this class
+ (NSString *)entityName;

// Create a new instance of %filltext:name=ClassName:default=ManagedObject% in the specified context
+ (%filltext:name=ClassName:default=ManagedObject% *)insert%filltext:name=EntityName:default=Entity%InContext:(NSManagedObjectContext *)context;

// Create a fetch request for %filltext:name=ClassName:default=ManagedObject% objects
+ (NSFetchRequest *)fetchRequest;

// Create a fetch request for %filltext:name=ClassName:default=ManagedObject% objects with ordered results
+ (NSFetchRequest *)orderedFetchRequest;

@end

// %filltext:name=ClassName:default=ManagedObject%+Operations.m

#import "%filltext:name=ClassName:default=ManagedObject%+Operations.h"

static NSString * const ENTITY_NAME = @"%filltext:name=EntityName:default=Entity%";

@implementation %filltext:name=ClassName:default=ManagedObject% (Operations)

+ (NSString *)entityName {
    return ENTITY_NAME;
}

+ (%filltext:name=ClassName:default=ManagedObject% *)insert%filltext:name=EntityName:default=Entity%InContext:(NSManagedObjectContext *)context {
    return [NSEntityDescription insertNewObjectForEntityForName:ENTITY_NAME
                                         inManagedObjectContext:context];
}

+ (NSFetchRequest *)fetchRequest {
    return [NSFetchRequest fetchRequestWithEntityName:ENTITY_NAME];
}

+ (NSFetchRequest *)orderedFetchRequest {
    NSFetchRequest *fetchRequest = [self fetchRequest];
    NSSortDescriptor *sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"name" ascending:YES];
    fetchRequest.sortDescriptors = @[sortDescriptor];
    return request;
}

@end

For example, if you enter "KDJCustomer" for the class name and "Customer" for the entity name, this is the result:

// KDJCustomer+Operations.h
// (for entity Customer)

#import "KDJCustomer.h"

// Category of operations on KDJCustomer that are not automatically generated.
//
// Defining these operations in a category lets us re-generate KDJCustomer.h and
// KDJCustomer.m whenever the schema changes.
@interface KDJCustomer (Operations)

// Return the managed object model entity name ("Customer") for this class
+ (NSString *)entityName;

// Create a new instance of KDJCustomer in the specified context
+ (KDJCustomer *)insertCustomerInContext:(NSManagedObjectContext *)context;

// Create a fetch request for KDJCustomer objects
+ (NSFetchRequest *)fetchRequest;

// Create a fetch request for KDJCustomer objects with ordered results
+ (NSFetchRequest *)orderedFetchRequest;

@end

// KDJCustomer+Operations.m

#import "KDJCustomer+Operations.h"

static NSString * const ENTITY_NAME = @"Customer";

@implementation KDJCustomer (Operations)

+ (NSString *)entityName {
    return ENTITY_NAME;
}

+ (KDJCustomer *)insertCustomerInContext:(NSManagedObjectContext *)context {
    return [NSEntityDescription insertNewObjectForEntityForName:ENTITY_NAME
                                         inManagedObjectContext:context];
}

+ (NSFetchRequest *)fetchRequest {
    return [NSFetchRequest fetchRequestWithEntityName:ENTITY_NAME];
}

+ (NSFetchRequest *)orderedFetchRequest {
    NSFetchRequest *fetchRequest = [self fetchRequest];
    NSSortDescriptor *sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"name" ascending:YES];
    fetchRequest.sortDescriptors = @[sortDescriptor];
    return request;
}

@end