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Configuration Extensions

Configuration extensions help add:

• new options to existing configuration sections

• new configuration sections

Creating a Configuration Extension

Each configuration extension must implement ConfigExtensionInterface (you can also use AbstractConfigExtension as a superclass). To register a new configuration extension, add it to Resources/config/oro/app.yml of your bundle or use config/config.yml of your application. Here is an example:

<?php
namespace Acme\Bundle\AcmeBundle\Api;

use Oro\Bundle\ApiBundle\Config\AbstractConfigExtension;

class MyConfigExtension extends AbstractConfigExtension
{
}

# config/config.yml
services:
  acme.api.my_config_extension:
    class: Acme\Bundle\AcmeBundle\Api\MyConfigExtension
    public: false

oro_api:
    config_extensions:
        - acme.api.my_config_extension

Add Options to an Existing Configuration Section

To add options to an existing configuration section, implement the getConfigureCallbacks method of ConfigExtensionInterface. If you need to add logic before the normalization of during the validation of the configuration, implement the getPreProcessCallbacks and getPostProcessCallbacks methods.

The following table describes existing sections for which new options can be added.

Section Name	When to use
entities.entity	Add entity options
entities.entity.field	Add field options
relations.entity	Add entity options when the entity is used as a relationship to another entity.
relations.entity.field	Add field options when the entity is used as a relationship to another entity.
filters	Add options to filters section
filters.field	Add filter options
sorters	Add options to sorters section
sorters.field	Add sorter options
actions.action	Add action options
actions.action.status_code	Add response status code options
actions.action.field	Add field options specific for a particular action. These options override options defined in entities.entity.field
subresources.subresource	Add sub-resource options
subresources.subresource.action	Add sub-resource action options
subresources.subresource.action.field	Add field options specific for a particular action of a sub-resource. These options override options defined in entities.entity.field

Example:

<?php
namespace Acme\Bundle\AcmeBundle\Api;

use Symfony\Component\Config\Definition\Builder\NodeBuilder;
use Oro\Bundle\ApiBundle\Config\AbstractConfigExtension;

class MyConfigExtension extends AbstractConfigExtension
{
    /**
     * {@inheritdoc}
     */
    public function getConfigureCallbacks()
    {
        return [
            'entities.entity' => function (NodeBuilder $node) {
                $node->scalarNode('some_option');
            }
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function getPreProcessCallbacks()
    {
        return [
            'entities.entity' => function (array $config) {
                // do something
                return $config;
            }
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function getPostProcessCallbacks()
    {
        return [
            'entities.entity' => function (array $config) {
                // do something
                return $config;
            }
        ];
    }
}

Add New Configuration Section

To add new configuration section, create a class implements ConfigurationSectionInterface and return instance of it in the getEntityConfigurationSections method of your configuration extension.

By default the configuration is returned as an array, but if you want to provide a class represents the configuration of your section, you can implement a configuration loader. The loader is a class that implements ConfigLoaderInterface. An instance of the loader should be returned by the getEntityConfigurationLoaders method of your configuration extension.

An example of simple configuration section:

<?php
namespace Acme\Bundle\AcmeBundle\Api;

use Symfony\Component\Config\Definition\Builder\NodeBuilder;
use Oro\Bundle\ApiBundle\Config\Definition\AbstractConfigurationSection;

class MyConfiguration extends AbstractConfigurationSection
{
    public function configure(NodeBuilder $node)
    {
        $node->scalarNode('some_option');
    }
}

An example of a configuration section that can be extended by other bundles:

<?php
namespace Acme\Bundle\AcmeBundle\Api;

use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
use Symfony\Component\Config\Definition\Builder\NodeBuilder;
use Oro\Bundle\ApiBundle\Config\Definition\AbstractConfigurationSection;

class MyConfiguration extends AbstractConfigurationSection
{
    public function configure(NodeBuilder $node)
    {
        $sectionName = 'my_section';

        /** @var ArrayNodeDefinition $parentNode */
        $parentNode = $node->end();
        $this->callConfigureCallbacks($node, $sectionName);
        $this->addPreProcessCallbacks($parentNode, $sectionName);
        $this->addPostProcessCallbacks($parentNode, $sectionName);

        $node->scalarNode('some_option');
    }
}

An example of a configuration section loader:

<?php
namespace Acme\Bundle\AcmeBundle\Api;

use Oro\Bundle\ApiBundle\Config\AbstractConfigLoader;

class MyConfigLoader extends AbstractConfigLoader
{
    /**
     * {@inheritdoc}
     */
    public function load(array $config)
    {
        $result = new MyConfigSection();
        foreach ($config as $key => $value) {
            $this->loadConfigValue($result, $key, $value);
        }

        return $result;
    }
}

An example of a configuration extension:

<?php
namespace Acme\Bundle\AcmeBundle\Api;

use Oro\Bundle\ApiBundle\Config\AbstractConfigExtension;

class MyConfigExtension extends AbstractConfigExtension
{
    /**
     * {@inheritdoc}
     */
    public function getEntityConfigurationSections()
    {
        return ['my_section' => new MyConfiguration()];
    }

    /**
     * {@inheritdoc}
     */
    public function getEntityConfigurationLoaders()
    {
        return ['my_section' => new MyConfigLoader()];
    }
}

An example of how to use the created configuration section:

api:
    ...
    entities:
        Acme\Bundle\AcmeBundle\Entity\AcmeEntity:
            my_section:
                my_option: value

To check that your configuration section is added correctly, run php bin/console oro:api:config:dump-reference. The output should look similar to the following:

# The structure of "Resources/config/oro/api.yml"
api:
    ...
    entities:
        name:
            ...
            my_section:
                my_option: ~
            ...