Updating one to one doctrine2
Now that we have defined the Metadata mappings and bootstrapped the Entity Manager we want to generate the relational database schema from it.Doctrine has a Command-Line Interface that allows you to access the Schema Tool, a component that generates the required tables to work with the metadata.To initiate a transaction to actually perform the insertion, You have to explicitly call flush() on the Entity Manager.This distinction between persist and flush is allows to aggregate all writes (INSERT, UPDATE, DELETE) into one single transaction, which is executed when flush is called.
You can easily recreate the database: The updating of databases uses a Diff Algorithm for a given Database Schema, a cornerstone of the **Doctrine* package, which can even be used without the Doctrine ORM package. Create a Note that all fields are set to protected (not public) with a mutator (getter and setter) defined for every field except $id.
Entities are PHP Objects that can be identified over many requests by a unique identifier or primary key.
These classes don’t need to extend any abstract base class or interface.
An entity class must not be final or contain final methods.
Additionally it must not implement clone nor wakeup, unless it does so safely. A persistable property is an instance variable of the entity that is saved into and retrieved from the database by Doctrine’s data mapping capabilities.