FilterFactory.php in Elasticsearch Connector 8.5

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 (is_null($condition
      ->getValue())) {
      switch ($condition
        ->getOperator()) {
        case '<>':
          $filter = [
            'exists' => [
              'field' => $condition
                ->getField(),
            ],
          ];
          break;
        case '=':
          $filter = [
            'bool' => [
              'must_not' => [
                'exists' => [
                  'field' => $condition
                    ->getField(),
                ],
              ],
            ],
          ];
          break;
        default:
          throw new \Exception('Value is empty for ' . $condition
            ->getField() . '. Incorrect filter criteria is using for searching!');
      }
    }
    else {
      switch ($condition
        ->getOperator()) {
        case '=':
          $filter = [
            'term' => [
              $condition
                ->getField() => $condition
                ->getValue(),
            ],
          ];
          break;
        case 'IN':
          $filter = [
            'terms' => [
              $condition
                ->getField() => array_values($condition
                ->getValue()),
            ],
          ];
          break;
        case '<>':
          $filter = [
            'bool' => [
              'must_not' => [
                '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;
        case 'BETWEEN':
          $filter = [
            'range' => [
              $condition
                ->getField() => [
                'from' => !empty($condition
                  ->getValue()[0]) ? $condition
                  ->getValue()[0] : NULL,
                'to' => !empty($condition
                  ->getValue()[1]) ? $condition
                  ->getValue()[1] : NULL,
                'include_lower' => FALSE,
                'include_upper' => FALSE,
              ],
            ],
          ];
          break;
        case 'NOT BETWEEN':
          $filter = [
            'bool' => [
              'must_not' => [
                'range' => [
                  $condition
                    ->getField() => [
                    'from' => !empty($condition
                      ->getValue()[0]) ? $condition
                      ->getValue()[0] : NULL,
                    'to' => !empty($condition
                      ->getValue()[1]) ? $condition
                      ->getValue()[1] : NULL,
                    'include_lower' => FALSE,
                    'include_upper' => FALSE,
                  ],
                ],
              ],
            ],
          ];
          break;
        default:
          throw new \Exception('Undefined operator ' . $condition
            ->getOperator() . ' for ' . $condition
            ->getField() . ' field! Incorrect filter criteria is using for searching!');
      }
    }
    return $filter;
  }

}

Classes

Name	Description
FilterFactory	Class FilterFactory.