Symfony2 default configuration parameters

Question

Is it possible to have a default configuration parameters in Symfony yeml configuration file. In case where the variable parameter is not available. For example. I have database name coming from Apache configuration, but if I run a command I would like to go with a default database, see below. The example is kind of twigi'ish

doctrine:
dbal:
    driver:   pdo_mysql
    host:     "%database_host%"
    port:     "%database_port%"
    dbname:   "%database.name%"|default('database1')
    user:     "%database_user%"
    password: "%database_password%"

What is the specific scenario why the parameter would not be defined? — Gerry
– Gerry, Commented Dec 8, 2016 at 15:39
Apache send SetEnv SYMFONY__DATABASE__NAME mydatabase but when I run symfony command, Apache is not part of the equitation and errors is thrown as there is no database name — xfloys2112
– xfloys2112, Commented Dec 8, 2016 at 17:23

Gerry · Accepted Answer · 2016-12-08 15:44:48Z

1

The only way to do that would be to set the parameter to a default value, which I assume would be early in the configuration file. A theoretic example:

parameters:
    foo: bar

imports:
    - { resource: parameters.yml }

If parameters.yml contains a definition for the %foo% parameter, it will overwrite the previous definition. If parameter.yml does not contain a definition for %foo% however, it will use the earlier defined (default) value.

answered Dec 8, 2016 at 15:44

Gerry

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1 Comment

Sam Wilson Over a year ago

The problem with this is that if you do define %foo% in parameters.yml, subsequent runs of composer install will remove it (because it's not in parameters.dist.yml).

Youssef · Accepted Answer · 2016-12-08 15:13:22Z

0

You can put your default configuration in parameters.yml.dist, this way when someone new joins the project and runs:

composer install

or

composer update

He will be prompted to provide his environment specific values and so parameters.yml will be created.

answered Dec 8, 2016 at 15:13

Youssef

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Cerad Over a year ago

While you can certainly do this, it has no relevance to the question.

xfloys2112 · Accepted Answer · 2016-12-08 19:17:19Z

0

I figured out a way around this problem by using "database_prefix" as the default database and other databases just add a suffix to that.

doctrine:
    dbal:
        driver:   pdo_mysql
        host:     "%database_host%"
        port:     "%database_port%"
        dbname:   "database_prefix%database.name%"
        user:     "%database_user%"
        password: "%database_password%"

answered Dec 8, 2016 at 19:17

xfloys2112

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