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Bravo3 ORM Bundle for Symfony 3

This bundle will add the following support to a Symfony 3 application:

• ORM entity manager service
• A user provider using the entity manager
• Services to help with user authentication (login, logout, etc)
• A session handler to use the entity manager to store sessions

Getting Started

Configuration

First register the bundle in your AppKernel.php:

new Bravo3\OrmBundle\OrmBundle(),

And then add some config to your config.yml file:

# Bravo3 ORM Configuration
orm:
    params:
        host: %db_host%
        port: %db_port%
        database: %db_database%
    user_class: AppBundle\Entity\User
    auth_firewall: main
    user_roles: [ ROLE_USER, ROLE_ADMIN, ROLE_SUPERADMIN ]

Also add some default parameters to your parameters.yml.dist file:

parameters:
    db_host: localhost
    db_port: 6379
    db_database: 0

You're now set to use the entity manager via the service 'orm.em', but you'll need to configure a bit more for sessions and user management.

Sessions

To enable the ORM session handler, just set the server in your config.yml:

framework:
    session:
        handler_id: orm.session_handler
        gc_probability: 0

Because the entity manager expires sessions via a TTL on the entity, you do not need to run the garbage collector to clean up old sessions.

By default, sessions expire after 3600 seconds (1 hr) - to change the session TTL, add session parameters to the orm configuration:

orm:
    session:
        ttl: 60 # 1 minute

You can also change the entity class used by the entity manager, if you have reason to do so:

orm:
    session:
        ttl: 3600
        entity: SomeNamespace\Session

Your entity class must implement the Bravo3\OrmBundle\Entity\SessionInterface interface.

User Authentication

For user authentication to work, you need to set the orm.user_provider in the secuity.yml file and set your encoder. Below is an example security.yml file:

security:
    encoders:
        Bravo3\OrmBundle\Entity\User: sha512

    providers:
        main:
            id: orm.user_provider

    firewalls:
        dev:
            pattern: ^/(_(profiler|wdt)|css|images|js)/
            security: false

        main:
            anonymous: ~
            pattern:   ^/
            form_login:
                login_path: /login

    access_control:
        - { path: ^/login, roles: IS_AUTHENTICATED_ANONYMOUSLY, requires_channel: https }
        - { path: ^/account, roles: ROLE_USER, requires_channel: https }

Remember that your security token is set in your current firewall, so it might be easier to set a global, anonymous firewall with access control parameters.

Although the security.yml file may specify the Bravo3\OrmBundle\Entity\User class as an encoder, you don't need to use this class as your user class. Your user class should extend the OrmBundle User class, however. You can change the user class in the ORM config:

orm:
    user_class: SomeNamespace\User

User Authentication

By default if you use Symfony's firewall to intercept form logins, the security token will contain the user entity and get serialised in the users session. Most ORM's don't return the actual user entity, however, but will return a proxy of that entity. This means that the serialised object in your session is now a proxy.

This creates a bit of overhead, now you've got a lot of serialised information in a session but you also need to deserialise a proxy. Proxy classes aren't PSR compliant, and in fact, there might not even be a copy of the proxy on the filesystem. To deserialise the entity, you need to bootstrap another autoloader to either load the proxy cache or regenerate the proxy. This is what the Doctrine bundle to handle serialised user entities.

The ORM bundle does not include a bootstrapped autoloader. Instead, it offers a security manager service that will create security tokens for you and log users in and out. When it creates the token it stores only the username, not the full user entity. This makes your session a lot less cumbersome and does not require a second autoloader.

To test credentials, get the token, user object or to login/logout a user, use the orm.security_manager service.

User Commands

Console commands are included to create & delete users, along with change their password and roles. These commands are registered in the 'user:' namespace.

app/console user:create

The list of user roles the commands offer you is configurable in the orm.user_roles configuration:

orm:
    user_roles: [ ROLE_USER, ROLE_AWESOME ]

Service Tags

You can add subscribers to the EntityManager's event dispatcher by tagging services with orm.event_subscriber.

Exporters

All exporters require a YAML file that lists the locations of your entities, this is a short simple list in the format:

- { path: src/Bravo3/OrmBundle/Entity, namespace: Bravo3\OrmBundle\Entity }
- { path: src/MyStuff/MyBundle/Entity, namespace: MyStuff\MyBundle\Entity }

Which is all the file needs to contain in order for export commands to locate all of your entities.

Map Exports

You can export your default entity mappings to other formats such as YAML using the map exporter:

bin/console orm:map:export --list=entities.yml --format=yaml

entities.yml needs to be an entity list in the format above. By default this will create a new map file in app/config/entity_map.yml - this path is defined in your service configuration.

CAUTION: Running this command will overwrite existing map files.

Database Exports

It is possible to import and export databases to and from any driver. This is done using the ORM's Porter service, however the bundle includes commands to quickly export your entity list to a filesystem driver:

bin/console orm:export -l entities.yml -o ~/backup.ormdb

This will export your configured database to a single tar file which can be used to import again.

bin/console orm:import -l entities.yml -i ~/backup.ormdb

Will restore your backup to the primary database. This will overwrite existing entities with the same ID, but will not delete content in the primary database that does not exist in the import source.

CAUTION: The export file is treated as a database, if it already contains data, this data will NOT be purged.