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Option Enum Set Fields
The option set, also named as the enum, is a special type of a field which allows to choose one or more options from a predefined set of options. The OroPlatform provides two different data types for these purposes:
enum(named Select on UI) - only one option can be selectedmultiEnum(named Multi-Select on UI) - several options can be selected
The option sets are quite complex. Both the enum and multiEnum types are based on regular Doctrine associations. The main difference between them is that the enum type is based on many-to-one association, while the multiEnum type is based on many-to-many association.
To add the option set field to an entity, you can use ExtendExtension.
The following example illustrates how to do it:
<?php
namespace Acme\Bundle\DemoBundle\Migrations\Schema\v1_3;
use Doctrine\DBAL\Schema\Schema;
use Oro\Bundle\EntityExtendBundle\EntityConfig\ExtendScope;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtensionAwareInterface;
use Oro\Bundle\MigrationBundle\Migration\Migration;
use Oro\Bundle\MigrationBundle\Migration\QueryBag;
class AddEnumFieldOroUser implements Migration, ExtendExtensionAwareInterface
{
protected ExtendExtension $extendExtension;
/**
* @inheritDoc
*/
public function setExtendExtension(ExtendExtension $extendExtension)
{
$this->extendExtension = $extendExtension;
}
/**
* @inheritDoc
*/
public function up(Schema $schema, QueryBag $queries)
{
$table = $schema->getTable('oro_user');
$this->extendExtension->addEnumField(
$schema,
$table,
'internal_rating', // field name
'user_internal_rating', // enum code
false, // only one option can be selected
false, // an administrator can add new options and remove existing ones
[
'extend' => ['owner' => ExtendScope::OWNER_CUSTOM],
'entity' => ['label' => 'Internal rating']
]
);
}
}
Please mind the enum code parameter. Each option set should have code and be unique system-wide, and with length of no more than 21 characters (due to dynamic name generation and prefix). The same principle applies to the field name. In the case above, it should be less than 27 symbols.
To load a list of options, use data fixtures, for example:
<?php
namespace Acme\Bundle\DemoBundle\Migrations\Data\ORM;
use Doctrine\Common\DataFixtures\AbstractFixture;
use Doctrine\Persistence\ObjectManager;
use Oro\Bundle\EntityExtendBundle\Entity\Repository\EnumValueRepository;
use Oro\Bundle\EntityExtendBundle\Tools\ExtendHelper;
class LoadUserInternalRatingData extends AbstractFixture
{
protected array $data = [
'1' => true,
'2' => false,
'3' => false,
'4' => false,
'5' => false
];
/**
* @inheritDoc
*/
public function load(ObjectManager $manager)
{
$className = ExtendHelper::buildEnumValueClassName('user_internal_rating');
/** @var EnumValueRepository $enumRepo */
$enumRepo = $manager->getRepository($className);
$priority = 1;
foreach ($this->data as $name => $isDefault) {
$enumOption = $enumRepo->createEnumValue($name, $priority++, $isDefault);
$manager->persist($enumOption);
}
$manager->flush();
}
}
As you can see in this example, we use the buildEnumValueClassName() method to convert the option set code to the class name of an entity responsible for storing all options of this option set. It is important because such entities are generated automatically by the OroPlatform and you should not use the class name directly. There are also other functions in the ExtendHelper class which can be helpful when you work with option sets:
buildEnumCode() - Builds an option set code based on its name.
generateEnumCode() - Generates an option set code based on a field for which this option set is created.
buildEnumValueId() - Builds an option identifier based on the option name. The option identifier is a 32 characters length string.
buildEnumValueClassName() - Builds the class name of an entity responsible for storing all options of the option set by the option set code.
getMultiEnumSnapshotFieldName() - Builds the name of a field that is used to store a snapshot of selected values for option sets that allows to select several options. We use this data to avoid GROUP BY clause.
getEnumTranslationKey() - Builds label names for option set related translations.
As mentioned above, each option set has its own table to store available options. But translations for all options of all option sets are stored in one table. You can find more details in EnumValueTranslation and AbstractEnumValue. The EnumValueTranslation class is used to store translations. The AbstractEnumValue is the base class for all option set entities.
If for some reason you create system option sets and you have to render them manually, the following components can be helpful:
TWIG extension to sort and translate options. It can be used the following way:
optionIds|sort_enum(enumCode),optionId|trans_enum(enumCode).Symfony form types that can be used to build forms contain option set fields: EnumChoiceType and EnumSelectType.
Grid filters: EnumFilter and MultiEnumFilter. Check out how to use these filters in datagrids.yml. You can learn how to configure datagrid formatters for option sets in ExtendColumnOptionsGuesser.
Please take in account that this class passes the class name as the option set identifier, but you can also use the enum code.