Configuration

So you are ready to start configuring your migrations? We just need to provide a few bits of information for the console application in order to get started.

Migrations Configuration

First we need to configure information about your migrations. In /data/doctrine/migrations-docs-example go ahead and create a folder to store your migrations in:

$ mkdir -p lib/MyProject/Migrations

Now, in the root of your project place a file named migrations.php, migrations.yml, migrations.xml or migrations.json and place the following contents:

  • PHP
    1<?php return [ 'table_storage' => [ 'table_name' => 'doctrine_migration_versions', 'version_column_name' => 'version', 'version_column_length' => 191, 'executed_at_column_name' => 'executed_at', 'execution_time_column_name' => 'execution_time', ], 'migrations_paths' => [ 'MyProject\Migrations' => '/data/doctrine/migrations/lib/MyProject/Migrations', 'MyProject\Component\Migrations' => './Component/MyProject/Migrations', ], 'all_or_nothing' => true, 'transactional' => true, 'check_database_platform' => true, 'organize_migrations' => 'none', 'connection' => null, 'em' => null, ];
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  • YAML
    1table_storage: table_name: doctrine_migration_versions version_column_name: version version_column_length: 191 executed_at_column_name: executed_at execution_time_column_name: execution_time migrations_paths: 'MyProject\Migrations': /data/doctrine/migrations/lib/MyProject/Migrations 'MyProject\Component\Migrations': ./Component/MyProject/Migrations all_or_nothing: true transactional: true check_database_platform: true organize_migrations: none connection: null em: null
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  • XML
    1<?xml version="1.0" encoding="UTF-8"?> <doctrine-migrations xmlns="http://doctrine-project.org/schemas/migrations/configuration/3.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://doctrine-project.org/schemas/migrations/configuration/3.0 http://doctrine-project.org/schemas/migrations/configuration-3.0.xsd"> <connection>default</connection> <em>default</em> <storage> <table-storage table-name="doctrine_migration_versions" version-column-name="version" version-column-length="191" executed-at-column-name="executed_at" execution-time-column-name="execution_time" /> </storage> <migrations-paths> <path namespace="MyProject\Migrations">/data/doctrine/migrations/lib/MyProject/Migrations</path> <path namespace="MyProject\Component\Migrations">./Component/MyProject/Migrations</path> </migrations-paths> <all-or-nothing>true</all-or-nothing> <transactional>true</transactional> <check-database-platform>true</check-database-platform> <organize_migrations>none</organize_migrations> </doctrine-migrations>
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  • JSON
    1{ "table_storage": { "table_name": "doctrine_migration_versions", "version_column_name": "version", "version_column_length": 191, "executed_at_column_name": "executed_at", "execution_time_column_name": "execution_time" }, "migrations_paths": { "MyProject\\Migrations": "/data/doctrine/migrations/lib/MyProject/Migrations", "MyProject\\Component\\Migrations": "./Component/MyProject/Migrations" }, "all_or_nothing": true, "transactional": true, "check_database_platform": true, "organize_migrations": "none", "connection": null, "em": null }
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Please note that if you want to use the YAML configuration option, you will need to install the symfony/yaml package with composer:

$ composer require symfony/yaml

Here are details about what each configuration option does:

Name Required Default Description
migrations_paths<string, string> null The PHP namespace your migration classes are located under and the path to a dire
table_storage no   Used by doctrine migrations to track the currently executed migrations
all_or_nothing no false Whether or not to wrap multiple migrations in a single transaction.
transactional no true Whether or not to wrap migrations in a single transaction.
migrations no [] Manually specify the array of migration versions instead of finding migrations.
check_database_platform no true Whether to add a database platform check at the beginning of the generated code.
organize_migrations no none Whether to organize migration classes under year (year) or year and month (``
connection no null The named connection to use (available only when ConnectionRegistryConnection is
em no null The named entity manager to use (available only when ManagerRegistryEntityManager

Here the possible options for table_storage:

Manually Providing Migrations

If you don't want to rely on Doctrine finding your migrations, you can explicitly specify the array of migration classes using the migrations configuration setting:

  • PHP
    1<?php return [ // .. 'migrations' => [ 'MyProject\Migrations\NewMigration', ], ];
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  • YAML
    1// ... migrations: - "MyProject\Migrations\NewMigration"
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  • XML
    1<?xml version="1.0" encoding="UTF-8"?> <doctrine-migrations xmlns="http://doctrine-project.org/schemas/migrations/configuration" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://doctrine-project.org/schemas/migrations/configuration http://doctrine-project.org/schemas/migrations/configuration.xsd"> // ... <migrations> <migration class="MyProject\Migrations\NewMigration" /> </migrations> </doctrine-migrations>
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  • JSON
    1{ // ... "migrations": [ "DoctrineMigrations\NewMigration" ] }
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All or Nothing Transaction

This only works if your database supports transactions for DDL statements.

When using the all_or_nothing option, multiple migrations ran at the same time will be wrapped in a single transaction. If one migration fails, all migrations will be rolled back

Using or not using transactions

By default, migrations are transactional, meaning code in a migration is wrapped in a transaction. Setting transactional to false will disable that.

From the Command Line

You can also set this option from the command line with the migrate command and the --all-or-nothing option:

$ ./vendor/bin/doctrine-migrations migrate --all-or-nothing

If you have it enabled at the configuration level and want to change it for an individual migration you can pass a value of 0 or 1 to --all-or-nothing.

$ ./vendor/bin/doctrine-migrations migrate --all-or-nothing=0

Connection Configuration

Now that we've configured our migrations, the next thing we need to configure is how the migrations console application knows how to get the connection to use for the migrations:

Simple

The simplest configuration is to put a migrations-db.php file in the root of your project and return an array of connection information that can be passed to the DBAL:

1<?php return [ 'dbname' => 'migrations_docs_example', 'user' => 'root', 'password' => '', 'host' => 'localhost', 'driver' => 'pdo_mysql', ];
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You will need to make sure the migrations_docs_example database exists. If you are using MySQL you can create it with the following command:

$ mysqladmin create migrations_docs_example

If you have already a DBAL connection available in your application, migrations-db.php can return it directly:

1<?php use Doctrine\DBAL\DriverManager; return DriverManager::getConnection([ 'dbname' => 'migrations_docs_example', 'user' => 'root', 'password' => '', 'host' => 'localhost', 'driver' => 'pdo_mysql', ]);
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Advanced

If you require a more advanced configuration and you want to get the connection to use from your existing application setup then you can use this method of configuration.

In the root of your project, place a file named cli-config.php with the following contents. It can also be placed in a folder named config if you prefer to keep it out of the root of your project.

1<?php require 'vendor/autoload.php'; use Doctrine\DBAL\DriverManager; use Doctrine\Migrations\Configuration\Connection\ExistingConnection; use Doctrine\Migrations\Configuration\Migration\PhpFile; use Doctrine\Migrations\DependencyFactory; $config = new PhpFile('migrations.php'); // Or use one of the Doctrine\Migrations\Configuration\Configuration\* loaders $conn = DriverManager::getConnection(['driver' => 'pdo_sqlite', 'memory' => true]); return DependencyFactory::fromConnection($config, new ExistingConnection($conn));
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The above setup assumes you are not using the ORM. If you want to use the ORM, first require it in your project with composer:

$ composer require doctrine/orm

Now update your cli-config.php in the root of your project to look like the following:

1<?php require 'vendor/autoload.php'; use Doctrine\ORM\EntityManager; use Doctrine\ORM\ORMSetup; use Doctrine\Migrations\Configuration\EntityManager\ExistingEntityManager; use Doctrine\Migrations\DependencyFactory; use Doctrine\Migrations\Configuration\Migration\PhpFile; use Doctrine\DBAL\DriverManager; $config = new PhpFile('migrations.php'); // Or use one of the Doctrine\Migrations\Configuration\Configuration\* loaders $paths = [__DIR__.'/lib/MyProject/Entities']; $isDevMode = true; $ORMConfig = ORMSetup::createAttributeMetadataConfiguration($paths, $isDevMode); $connection = DriverManager::getConnection(['driver' => 'pdo_sqlite', 'memory' => true]); $entityManager = new EntityManager($connection, $ORMConfig); return DependencyFactory::fromEntityManager($config, new ExistingEntityManager($entityManager));
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Make sure to create the directory where your ORM entities will be located:

$ mkdir lib/MyProject/Entities

Next Chapter: Migration Classes