Issue #3308784 by botanic_spark: Add operation for 'between' operator for Search API

    }

  }

  /**

   * {@inheritdoc}

   */

  protected function opBetween($field) {

    if (

      !empty($this->value['type']) &&

      $this->value['type'] == 'date_year' &&

      isset($this->value['min']) &&

      isset($this->value['max'])

    ) {

      $startDate = intval($this->value['min']) . '-01-01 00:00:01';

      $endDate = intval($this->value['max']) . '-12-31 23:59:59';

      $startDateConverted = strtotime($startDate, 0);

      $endDateConverted = strtotime($endDate, 0);

      $operator = strtoupper($this->operator);

      $group = $this->options['group'];

      $this->getQuery()->addCondition(

        $this->realField,

        [

          $startDateConverted,

          $endDateConverted,

        ],

        $operator,

        $group

      );

    }

    else {

      parent::opBetween($field);

    }

  }

  /**

   * {@inheritdoc}

   */