chill-bundles/src/Bundle/ChillMainBundle/Export/AggregatorInterface.php
2025-04-08 14:09:16 +02:00

111 lines
3.6 KiB
PHP

<?php
declare(strict_types=1);
/*
* Chill is a software for social workers
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace Chill\MainBundle\Export;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Contracts\Translation\TranslatableInterface;
/**
* Interface for Aggregators.
*
* Aggregators gather result of a query. Most of the time, it will add
* a GROUP BY clause.
*
* @template D of array
*/
interface AggregatorInterface extends ModifierInterface
{
/**
* Add a form to collect data from the user.
*/
public function buildForm(FormBuilderInterface $builder): void;
/**
* Get the default data, that can be use as "data" for the form.
*
* @return D
*/
public function getFormDefaultData(): array;
/**
* @param D $formData
*/
public function normalizeFormData(array $formData): array;
/**
* @return D
*/
public function denormalizeFormData(array $formData, int $fromVersion): array;
public function getNormalizationVersion(): int;
/**
* get a callable which will be able to transform the results into
* viewable and understable string.
*
* The callable will have only one argument: the `value` to translate.
*
* The callable should also be able to return a key `_header`, which
* will contains the header of the column.
*
* The string returned **must** be already translated if necessary,
* **with an exception** for the string returned for `_header`.
*
* Example :
*
* ```
* protected $translator;
*
* public function getLabels($key, array $values, $data)
* {
* return function($value) {
* case $value
* {
* case '_header' :
* return 'my header not translated';
* case true:
* return $this->translator->trans('true');
* case false:
* return $this->translator->trans('false');
* default:
* // this should not happens !
* throw new \LogicException();
* }
* }
* ```
*
* **Note:** Why each string must be translated with an exception for
* the `_header` ? For performance reasons: most of the value will be number
* which do not need to be translated, or value already translated in
* database. But the header must be, in every case, translated.
*
* @param string $key The column key, as added in the query
* @param mixed[] $values The values from the result. if there are duplicates, those might be given twice. Example: array('FR', 'BE', 'CZ', 'FR', 'BE', 'FR')
*
* @return callable(mixed $value): (string|int|\DateTimeInterface|TranslatableInterface) where the first argument is the value, and the function should return the label to show in the formatted file. Example : `function($countryCode) use ($countries) { return $countries[$countryCode]->getName(); }`
*/
public function getLabels(string $key, array $values, mixed $data): callable;
/**
* give the list of keys the current export added to the queryBuilder in
* self::initiateQuery.
*
* Example: if your query builder will contains `SELECT count(id) AS count_id ...`,
* this function will return `array('count_id')`.
*
* @param D $data the data from the export's form (added by self::buildForm)
*
* @return list<string>
*/
public function getQueryKeys(array $data): array;
}