In software engineering, the active record pattern is a design pattern found in software that stores its data in relational databases. It was named by Martin Fowler in his book Patterns of Enterprise Application Architecture. The interface to such an object would include functions such as Insert, Update, and Delete, plus properties that correspond more-or-less directly to the columns in the underlying database table. Active record is an approach to accessing data in a database. A database table or view is wrapped into a class; thus an object instance is tied to a single row in the table. After creation of an object, a new row is added to the table upon save. Any object loaded gets its information from the database; when an object is updated, the corresponding row in the table is also updated. The wrapper class implements accessor methods or properties for each column in the table or view.
Features
- Clean up Core Data related code
- Allow for clear, simple, one-line fetches
- Allow the modification of the NSFetchRequest when request optimizations are needed
- Each call instantiates one of each piece of the Core Data stack
- A variety of simple class methods are provided to help you create new contexts
- MagicalRecord provides a simple class method to retrieve a default NSManagedObjectContext that can be used throughout your app