UrlProcessorPluginBase.php in Facets 8

Namespace

Drupal\facets\UrlProcessor

File

src/UrlProcessor/UrlProcessorPluginBase.php

<?php

namespace Drupal\facets\UrlProcessor;

use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\facets\Exception\InvalidProcessorException;
use Drupal\facets\FacetInterface;
use Drupal\facets\Processor\ProcessorPluginBase;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\Request;

/**
 * A base class for plugins that implements most of the boilerplate.
 */
abstract class UrlProcessorPluginBase extends ProcessorPluginBase implements UrlProcessorInterface, ContainerFactoryPluginInterface {

  /**
   * The query string variable.
   *
   * @var string
   *   The query string variable that holds all the facet information.
   */
  protected $filterKey = 'f';

  /**
   * The url separator variable.
   *
   * @var string
   *   The sepatator to use between field and value.
   */
  protected $separator;

  /**
   * The clone of the current request object.
   *
   * @var \Symfony\Component\HttpFoundation\Request
   */
  protected $request;

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * An array of active filters.
   *
   * @var array
   *   An array containing the active filters with key being the facet id and
   *   value being an array of raw values.
   */
  protected $activeFilters = [];

  /**
   * {@inheritdoc}
   */
  public function getFilterKey() {
    return $this->filterKey;
  }

  /**
   * {@inheritdoc}
   */
  public function getSeparator() {
    return $this->separator;
  }

  /**
   * Constructs a new instance of the class.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   A request object for the current request.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The Entity Type Manager.
   *
   * @throws \Drupal\facets\Exception\InvalidProcessorException
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, Request $request, EntityTypeManagerInterface $entity_type_manager) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->request = clone $request;
    $this->entityTypeManager = $entity_type_manager;
    if (!isset($configuration['facet'])) {
      throw new InvalidProcessorException("The url processor doesn't have the required 'facet' in the configuration array.");
    }

    /** @var \Drupal\facets\FacetInterface $facet */
    $facet = $configuration['facet'];

    /** @var \Drupal\facets\FacetSourceInterface $facet_source_config */
    $facet_source_config = $facet
      ->getFacetSourceConfig();
    $this->filterKey = $facet_source_config
      ->getFilterKey() ?: 'f';

    // Set the separator to the predefined colon char but override if passed
    // along as part of the plugin configuration.
    $this->separator = ':';
    if (isset($configuration['separator'])) {
      $this->separator = $configuration['separator'];
    }
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('request_stack')
      ->getMasterRequest(), $container
      ->get('entity_type.manager'));
  }

  /**
   * {@inheritdoc}
   */
  public function getActiveFilters() {
    return $this->activeFilters;
  }

  /**
   * {@inheritdoc}
   */
  public function setActiveFilters(array $active_filters) {
    $this->activeFilters = $active_filters;
  }

  /**
   * {@inheritdoc}
   */
  public function setActiveItems(FacetInterface $facet) {

    // Get the filter key of the facet.
    if (isset($this->activeFilters[$facet
      ->id()])) {
      foreach ($this->activeFilters[$facet
        ->id()] as $value) {
        $facet
          ->setActiveItem(trim($value, '"'));
      }
    }
  }

}

Classes

Name	Description
UrlProcessorPluginBase	A base class for plugins that implements most of the boilerplate.