database_driver parameter on fresh install

[thedigital]

By default, database_driver is hardcoded with pdo_mysql.

In app/config/config.yml, this is hardcoded this way :
doctrine:
dbal:
driver: "pdo_mysql"

I feel like it should be :
doctrine:
dbal:
driver: "%database_driver%"

database_driver should be asked at installation time with default pdo_mysql if you prefer this database but please dont let it be hardcoded.

I lose 20min searching why doctrine couldnt find database_driver: pdo_pgsql driver that i set in app/config/parameters.yml

Otherwise, install is great

[dunglas]

We want to keep as close as possible of the Symfony Standard Edition (and we'll probably switch to Symfony Flex when it will be out) and Symfony hardcode the driver to use: https://github.com/symfony/symfony-standard/blob/master/app/config/config.yml#L45

If you feel that it should be changed, please open an issue on Symfony.

[dunglas]

Take a look at this discussion to understand why database_driver isn't in parameters.yml anymore: symfony/symfony-standard#776 (diff)