GeofieldRectBoundaryFilter.php in Geofield 8

Namespace

Drupal\geofield\Plugin\views\filter

File

src/Plugin/views/filter/GeofieldRectBoundaryFilter.php

<?php

namespace Drupal\geofield\Plugin\views\filter;

use Drupal\geofield\Plugin\views\GeofieldBoundaryHandlerTrait;
use Drupal\Core\Form\FormStateInterface;
use Drupal\views\Plugin\views\filter\FilterPluginBase;
use Drupal\views\Plugin\views\query\Sql;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;

/**
 * Filter handler for search keywords.
 *
 * @ingroup views_filter_handlers
 *
 * @ViewsFilter("geofield_rectangular_boundary_filter")
 */
class GeofieldRectBoundaryFilter extends FilterPluginBase implements ContainerFactoryPluginInterface {
  use GeofieldBoundaryHandlerTrait;

  /**
   * {@inheritdoc}
   */
  public $no_operator = TRUE;

  /**
   * {@inheritdoc}
   */
  protected $alwaysMultiple = TRUE;

  /**
   * {@inheritdoc}
   */
  public function adminSummary() {
    return $this
      ->t("Rectangular Boundary filter");
  }

  /**
   * {@inheritdoc}
   */
  public function acceptExposedInput($input) {
    if (!empty($this->value['group']['lat_north_east']) && !empty($this->value['group']['lng_north_east']) && !empty($this->value['group']['lat_south_west']) && !empty($this->value['group']['lng_south_west'])) {
      return TRUE;
    }
    $return_value = parent::acceptExposedInput($input);
    if (empty($this->value)) {
      $this->value = [];
    }
    return $return_value;
  }

  /**
   * {@inheritdoc}
   */
  protected function valueForm(&$form, FormStateInterface $form_state) {
    parent::valueForm($form, $form_state);
    $form['value']['#tree'] = TRUE;
    $form['value']['#prefix'] = '<div id="geofield-boundary-filter">';
    $form['value']['#suffix'] = '</div>';
    $form['value']['group'] = [
      '#type' => 'details',
      '#title' => $this
        ->t('Rectangle Boundaries'),
      '#open' => TRUE,
    ];
    $value_element =& $form['value'];

    // Add the Latitude and Longitude elements.
    $value_element['group']['lat_north_east'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('NE Latitude'),
      '#default_value' => !empty($this->value['group']['lat_north_east']) ? $this->value['group']['lat_north_east'] : '',
      '#weight' => 10,
      '#size' => 12,
    ];
    $value_element['group']['lng_north_east'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('NE Longitude'),
      '#default_value' => !empty($this->value['group']['lng_north_east']) ? $this->value['group']['lng_north_east'] : '',
      '#weight' => 20,
      '#size' => 12,
    ];
    $value_element['group']['lat_south_west'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('SW Latitude'),
      '#default_value' => !empty($this->value['group']['lat_south_west']) ? $this->value['group']['lat_south_west'] : '',
      '#weight' => 30,
      '#size' => 12,
    ];
    $value_element['group']['lng_south_west'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('SW Longitude'),
      '#default_value' => !empty($this->value['group']['lng_south_west']) ? $this->value['group']['lng_south_west'] : '',
      '#weight' => 40,
      '#size' => 12,
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function query() {
    if (!$this->query instanceof Sql) {
      return;
    }
    if (empty($this->value)) {
      return;
    }

    // Get the field alias.
    $lat_north_east = $this->value['group']['lat_north_east'];
    $lng_north_east = $this->value['group']['lng_north_east'];
    $lat_south_west = $this->value['group']['lat_south_west'];
    $lng_south_west = $this->value['group']['lng_south_west'];
    if (!is_numeric($lat_north_east) || !is_numeric($lng_north_east) || !is_numeric($lat_south_west) || !is_numeric($lng_south_west)) {
      return;
    }
    $this->query
      ->addWhereExpression($this->options['group'], self::getBoundaryQueryFragment($this
      ->ensureMyTable(), $this->realField, $lat_north_east, $lng_north_east, $lat_south_west, $lng_south_west));
  }

}

Classes

Name	Description
GeofieldRectBoundaryFilter	Filter handler for search keywords.