toutpratique/vendor/robmorgan/phinx/docs/configuration.rst
2015-10-16 15:09:01 +02:00

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.. index::
single: Configuration
Configuration
=============
When you initialize your project using the :doc:`Init Command<commands>`, Phinx
creates a default file called ``phinx.yml`` in the root of your project directory.
This file uses the YAML data serialization format.
If a ``--configuration`` command line option is given, Phinx will load the
specified file. Otherwise, it will attempt to find ``phinx.php``, ``phinx.json`` or
``phinx.yml`` and load the first file found. See the :doc:`Commands <commands>`
chapter for more information.
.. warning::
Remember to store the configuration file outside of a publicly accessible
directory on your webserver. This file contains your database credentials
and may be accidentally served as plain text.
Note that while JSON and YAML files are *parsed*, the PHP file is *included*.
This means that:
* It must `return` an array of configuration items.
* The variable scope is local, i.e. you would need to explicitly declare
any global variables your initialization file reads or modifies.
* Its standard output is suppressed.
* Unlike with JSON and YAML, it is possible to omit environment connection details
and instead specify ``connection`` which must
contain an initialized PDO instance. This is useful when you want
your migrations to interact with your application and/or share the same.
connection.
.. code-block:: php
require 'app/init.php';
global $app;
$pdo = $app->getDatabase()->getPdo();
return array('environments' => array(
'default_database' => 'development',
'development' => array(
'connection' => $pdo
)));
Migration Path
--------------
The first option specifies the path to your migration directory. Phinx uses
``%%PHINX_CONFIG_DIR%%/migrations`` by default.
.. note::
``%%PHINX_CONFIG_DIR%%`` is a special token and is automatically replaced
with the root directory where your ``phinx.yml`` file is stored.
In order to overwrite the default ``%%PHINX_CONFIG_DIR%%/migrations``, you need
to add the following to the yaml configuration.
.. code-block:: yaml
paths:
migrations: /your/full/path
You can also use the ``%%PHINX_CONFIG_DIR%%`` token in your path.
.. code-block:: yaml
paths:
migrations: %%PHINX_CONFIG_DIR%%/your/relative/path
Custom Migration Base
---------------------
By default all migrations will extend from Phinx's `AbstractMigration` class.
This can be set to a custom class that extends from `AbstractMigration` by
setting ``migration_base_class`` in your config:
.. code-block:: yaml
migration_base_class: MyMagicalMigration
Environments
------------
One of the key features of Phinx is support for multiple database environments.
You can use Phinx to create migrations on your development environment, then
run the same migrations on your production environment. Environments are
specified under the ``environments`` nested collection. For example:
.. code-block:: yaml
environments:
default_migration_table: phinxlog
default_database: development
production:
adapter: mysql
host: localhost
name: production_db
user: root
pass: ''
port: 3306
charset: utf8
collation: utf8_unicode_ci
would define a new environment called ``production``.
In a situation when multiple developers work on the same project and each has
a different environment (e.g. a convention such as ``<environment
type>-<developer name>-<machine name>``), or when you need to have separate
environments for separate purposes (branches, testing, etc) use environment
variable `PHINX_ENVIRONMENT` to override the default environment in the yaml
file:
.. code-block:: bash
export PHINX_ENVIRONMENT=dev-`whoami`-`hostname`
Table Prefix and Suffix
------------------
You can define a table prefix and table suffix:
.. code-block:: yaml
environments:
development:
....
table_prefix: dev_
table_suffix: _v1
testing:
....
table_prefix: test_
table_suffix: _v2
Socket Connections
------------------
When using the MySQL adapter, it is also possible to use sockets instead of
network connections. The socket path is configured with ``unix_socket``:
.. code-block:: yaml
environments:
default_migration_table: phinxlog
default_database: development
production:
adapter: mysql
name: production_db
user: root
pass: ''
unix_socket: /var/run/mysql/mysql.sock
charset: utf8
External Variables
------------------
Phinx will automatically grab any environment variable prefixed with ``PHINX_``
and make it available as a token in the config file. The token will have
exactly the same name as the variable but you must access it by wrapping two
``%%`` symbols on either side. e.g: ``%%PHINX_DBUSER%%``. This is especially
useful if you wish to store your secret database credentials directly on the
server and not in a version control system. This feature can be easily
demonstrated by the following example:
.. code-block:: yaml
environments:
default_migration_table: phinxlog
default_database: development
production:
adapter: mysql
host: %%PHINX_DBHOST%%
name: %%PHINX_DBNAME%%
user: %%PHINX_DBUSER%%
pass: %%PHINX_DBPASS%%
port: 3306
charset: utf8
Supported Adapters
------------------
Phinx currently supports the following database adapters natively:
* `MySQL <http://www.mysql.com/>`_: specify the ``mysql`` adapter.
* `PostgreSQL <http://www.postgresql.org/>`_: specify the ``pgsql`` adapter.
* `SQLite <http://www.sqlite.org/>`_: specify the ``sqlite`` adapter.
* `SQL Server <http://www.microsoft.com/sqlserver>`_: specify the ``sqlsrv`` adapter.
SQLite
`````````````````
Declaring an SQLite database uses a simplified structure:
.. code-block:: yaml
environments:
development:
adapter: sqlite
name: ./data/derby
testing:
adapter: sqlite
memory: true # Setting memory to *any* value overrides name
SQL Server
`````````````````
When using the ``sqlsrv`` adapter and connecting to a named instance you should
omit the ``port`` setting as SQL Server will negotiate the port automatically.
Additionally, omit the ``charset: utf8`` or change to ``charset: 65001`` which
corresponds to UTF8 for SQL Server.
Custom Adapters
`````````````````
You can provide a custom adapter by registering an implementation of the `Phinx\\Db\\Adapter\\AdapterInterface`
with `AdapterFactory`:
.. code-block:: php
$name = 'fizz';
$class = 'Acme\Adapter\FizzAdapter';
AdapterFactory::instance()->registerAdapter($name, $class);
Adapters can be registered any time before `$app->run()` is called, which normally
called by `bin/phinx`.
Aliases
-------
Template creation class names can be aliased and used with the ``--class`` command line option for the :doc:`Create Command <commands>`.
The aliased classes will still be required to implement the ``Phinx\Migration\CreationInterface`` interface.
.. code-block:: yaml
aliases:
permission: \Namespace\Migrations\PermissionMigrationTemplateGenerator
view: \Namespace\Migrations\ViewMigrationTemplateGenerator