FilterFactory.php in Elasticsearch Connector 8.2

Namespace

Drupal\elasticsearch_connector\ElasticSearch\Parameters\Factory

File

src/ElasticSearch/Parameters/Factory/FilterFactory.php

<?php

namespace Drupal\elasticsearch_connector\ElasticSearch\Parameters\Factory;

use Drupal\search_api\Query\Condition;

/**
 * Class FilterFactory.
 */
class FilterFactory {

  /**
   * Get query by Condition instance.
   *
   * @param Condition $condition
   *
   * @return array
   *
   * @throws \Exception
   */
  public static function filterFromCondition(Condition $condition) {

    // Handles "empty", "not empty" operators.
    if (!$condition
      ->getValue()) {
      switch ($condition
        ->getOperator()) {
        case '<>':
          $filter = [
            'exists' => [
              'field' => $condition
                ->getField(),
            ],
          ];
          break;
        case '=':
          $filter = [
            'not' => [
              'filter' => [
                'exists' => [
                  'field' => $condition
                    ->getField(),
                ],
              ],
            ],
          ];
          break;
        default:
          throw new \Exception(t('Value is empty for :field_id! Incorrect filter criteria is using for searching!', [
            ':field_id' => $condition
              ->getField(),
          ]));
      }
    }
    else {
      switch ($condition
        ->getOperator()) {
        case '=':
          $filter = [
            'term' => [
              $condition
                ->getField() => $condition
                ->getValue(),
            ],
          ];
          break;
        case 'IN':
          $filter = [
            'terms' => [
              $condition
                ->getField() => array_values($condition
                ->getValue()),
            ],
          ];
          break;
        case '<>':
          $filter = [
            'not' => [
              'filter' => [
                'term' => [
                  $condition
                    ->getField() => $condition
                    ->getValue(),
                ],
              ],
            ],
          ];
          break;
        case '>':
          $filter = [
            'range' => [
              $condition
                ->getField() => [
                'from' => $condition
                  ->getValue(),
                'to' => NULL,
                'include_lower' => FALSE,
                'include_upper' => FALSE,
              ],
            ],
          ];
          break;
        case '>=':
          $filter = [
            'range' => [
              $condition
                ->getField() => [
                'from' => $condition
                  ->getValue(),
                'to' => NULL,
                'include_lower' => TRUE,
                'include_upper' => FALSE,
              ],
            ],
          ];
          break;
        case '<':
          $filter = [
            'range' => [
              $condition
                ->getField() => [
                'from' => NULL,
                'to' => $condition
                  ->getValue(),
                'include_lower' => FALSE,
                'include_upper' => FALSE,
              ],
            ],
          ];
          break;
        case '<=':
          $filter = [
            'range' => [
              $condition
                ->getField() => [
                'from' => NULL,
                'to' => $condition
                  ->getValue(),
                'include_lower' => FALSE,
                'include_upper' => TRUE,
              ],
            ],
          ];
          break;
        default:
          throw new \Exception(t('Undefined operator :field_operator for :field_id field! Incorrect filter criteria is using for searching!', [
            ':field_operator' => $condition
              ->getOperator(),
            ':field_id' => $condition
              ->getField(),
          ]));
      }
    }
    return $filter;
  }

}

Classes

Name	Description
FilterFactory	Class FilterFactory.