class RelationRelationship in Relation 8

Same name and namespace in other branches

8.2 src/Plugin/views/relationship/RelationRelationship.php \Drupal\relation\Plugin\views\relationship\RelationRelationship

Relate entities using a Relation endpoint.

Plugin annotation

@ViewsRelationship("relation_relationship");

Hierarchy

class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
- class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
  - class \Drupal\views\Plugin\views\PluginBase implements DependentPluginInterface, ContainerFactoryPluginInterface, TrustedCallbackInterface, ViewsPluginInterface
    class \Drupal\views\Plugin\views\HandlerBase implements ViewsHandlerInterface
    class \Drupal\views\Plugin\views\relationship\RelationshipPluginBase
    class \Drupal\views\Plugin\views\relationship\Standard
    class \Drupal\relation\Plugin\views\relationship\RelationRelationship

Expanded class hierarchy of RelationRelationship

File

src/Plugin/views/relationship/RelationRelationship.php, line 20: Views relationship support.

Namespace

Drupal\relation\Plugin\views\relationship

View source

class RelationRelationship extends RelationshipStandard {

  /**
   * Define r_index option.
   */
  public function defineOptions() {
    $options = parent::defineOptions();
    $options['r_index'] = array(
      'default' => -1,
    );
    $options['entity_deduplication_left'] = array(
      'default' => FALSE,
    );
    $options['entity_deduplication_right'] = array(
      'default' => FALSE,
    );
    return $options;
  }

  /**
   * Let the user choose r_index.
   */
  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    parent::buildOptionsForm($form, $form_state);

    // Check if this relation is entity-to-entity or entity-to-relation /
    // relation-to-entity.
    $endpoints_twice = isset($this->definition['entity_type_left']) && isset($this->definition['entity_type_right']);
    if ($this->definition['directional']) {
      $form['r_index'] = array(
        '#type' => 'select',
        '#options' => array(
          -1 => t('Any'),
          0 => t('Source'),
          1 => t('Target'),
        ),
        '#title' => t('Position of the relationship base'),
        '#default_value' => $this->options['r_index'],
        // check_plain()'d in the definition.
        '#description' => t('Select whether the entity you are adding the relationship to is source or target of @relation_type_label relation.', array(
          '@relation_type_label' => $this->definition['label'],
        )),
      );
    }
    foreach (array(
      'left',
      'right',
    ) as $key) {
      if (isset($this->definition['entity_type_' . $key])) {
        $form['entity_deduplication_' . $key] = array(
          '#type' => 'checkbox',
          '#title' => $endpoints_twice ? t('Avoid @direction @type duplication', array(
            '@direction' => t($key),
            '@type' => $this->definition['entity_type_' . $key],
          )) : t('Avoid @type duplication', array(
            '@type' => $this->definition['entity_type_' . $key],
          )),
          '#default_value' => $this->options['entity_deduplication_' . $key],
          '#description' => t('When creating a chain of Views relationships for example from node to relation and then from relation to node (both via the same relation type) then each node will display on both ends. Check this option to avoid this kind of duplication.'),
        );
      }
    }
  }

  /**
   *
   */
  public function query() {
    $table_mapping = \Drupal::entityTypeManager()
      ->getStorage('relation')
      ->getTableMapping();
    $endpoints_field = FieldStorageConfig::loadByName('relation', 'endpoints');
    $relation_data_table_name = $table_mapping
      ->getDedicatedDataTableName($endpoints_field);
    $entity_id_field_name = $table_mapping
      ->getFieldColumnName($endpoints_field, 'entity_id');
    $entity_type_field_name = $table_mapping
      ->getFieldColumnName($endpoints_field, 'entity_type');
    $r_index_field_name = $table_mapping
      ->getFieldColumnName($endpoints_field, 'r_index');
    $join_type = empty($this->options['required']) ? 'LEFT' : 'INNER';
    $endpoints_twice = isset($this->definition['entity_type_left']) && isset($this->definition['entity_type_right']);
    $this
      ->ensureMyTable();

    // Join the left table with the entity type to the endpoints field data
    // table.
    $configuration = array(
      'left_table' => $this->tableAlias,
      'left_field' => $this->realField,
      'table' => $relation_data_table_name,
      'type' => $join_type,
      'extra' => array(
        array(
          'field' => 'bundle',
          'value' => $this->definition['relation_type'],
        ),
      ),
    );
    if (isset($this->definition['entity_type_left'])) {

      // The left table is an entity, not a relation.
      $configuration['field'] = $entity_id_field_name;
      $this
        ->ensureNoDuplicateEntities($configuration['extra'], $this->options['entity_deduplication_left'], $this->definition['relation_type'], $this->definition['entity_type_left'], $this->tableAlias, $this->realField);
      $configuration['extra'][] = array(
        'field' => $entity_type_field_name,
        'value' => $this->definition['entity_type_left'],
      );
    }
    else {

      // The left table is relation.
      $configuration['field'] = 'entity_id';
    }
    if ($this->definition['directional'] && $this->options['r_index'] > -1) {
      $configuration['extra'][] = array(
        'field' => $r_index_field_name,
        'value' => $this->options['r_index'],
      );
    }
    $join = Views::pluginManager('join')
      ->createInstance('standard', $configuration);
    $join->adjusted = TRUE;
    $l = $this->query
      ->addTable($relation_data_table_name, $this->relationship, $join);
    if ($endpoints_twice) {

      // Execute a self-join.
      $configuration = array(
        'left_table' => $l,
        'left_field' => 'entity_id',
        'table' => $relation_data_table_name,
        'field' => 'entity_id',
        'type' => $join_type,
        'extra' => array(
          array(
            'field' => $entity_type_field_name,
            'value' => $this->definition['entity_type_right'],
          ),
        ),
      );
      if ($this->definition['entity_type_left'] == $this->definition['entity_type_right']) {
        $configuration['extra'][] = array(
          // This definition is a bit funny but there's no other way to tell
          // Views to use an expression in join extra as it is.
          'field' => $r_index_field_name . ' !=  ' . $l . '.' . $r_index_field_name . ' AND 1',
          'value' => 1,
        );
      }
      $join = Views::pluginManager('join')
        ->createInstance('standard', $configuration);
      $join->adjusted = TRUE;
      $r = $this->query
        ->addTable($relation_data_table_name, $this->relationship, $join);
    }
    else {
      $r = $l;
    }
    $configuration = array(
      'left_table' => $r,
      'table' => $this->definition['base'],
      'field' => $this->definition['base field'],
      'type' => $join_type,
    );
    if (isset($this->definition['entity_type_right'])) {

      // We are finishing on an entity table.
      $configuration['left_field'] = $entity_id_field_name;
      $this
        ->ensureNoDuplicateEntities($configuration['extra'], $this->options['entity_deduplication_right'], $this->definition['relation_type'], $this->definition['entity_type_right'], $r, $entity_id_field_name);
      $configuration['extra'][] = array(
        'table' => $r,
        'field' => $entity_type_field_name,
        'value' => $this->definition['entity_type_right'],
      );
    }
    else {

      // We are finishing on relation.
      $configuration['left_field'] = 'entity_id';
    }
    $join = Views::pluginManager('join')
      ->createInstance('standard', $configuration);
    $join->adjusted = TRUE;

    // Use a short alias for this:
    $alias = $this->definition['base'] . '_' . $this->table;
    $this->alias = $this->query
      ->addRelationship($alias, $join, $this->definition['base'], $this->relationship);
  }

  /**
   *
   */
  protected function ensureNoDuplicateEntities(&$extra, $check, $relation_type, $entity_type, $table, $field) {
    if ($check && isset($this->view->relation_entity_tables[$entity_type][$relation_type])) {
      foreach ($this->view->relation_entity_tables[$entity_type][$relation_type] as $expression) {
        $extra[] = array(
          'table' => NULL,
          'field' => "{$expression} != {$table}.{$field} AND 1",
          'value' => 1,
        );
      }
    }
    $this->view->relation_entity_tables[$entity_type][$relation_type][] = "{$table}.{$field}";
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property	An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
HandlerBase::$field	public	property	With field you can override the realField if the real field is not set.
HandlerBase::$moduleHandler	protected	property	The module handler.	3
HandlerBase::$query	public	property	Where the $query object will reside:	7
HandlerBase::$realField	public	property	The actual field in the database table, maybe different on other kind of query plugins/special handlers.
HandlerBase::$relationship	public	property	The relationship used for this field.
HandlerBase::$table	public	property	The table this handler is attached to.
HandlerBase::$tableAlias	public	property	The alias of the table of this handler which is used in the query.
HandlerBase::$viewsData	protected	property	The views data service.
HandlerBase::acceptExposedInput	public	function	Take input from exposed handlers and assign to this handler, if necessary.	1
HandlerBase::access	public	function	Check whether given user has access to this handler. Overrides ViewsHandlerInterface::access	4
HandlerBase::adminLabel	public	function	Return a string representing this handler's name in the UI. Overrides ViewsHandlerInterface::adminLabel	4
HandlerBase::adminSummary	public	function	Provide text for the administrative summary. Overrides ViewsHandlerInterface::adminSummary	4
HandlerBase::breakString	public static	function	Breaks x,y,z and x+y+z into an array. Overrides ViewsHandlerInterface::breakString
HandlerBase::broken	public	function	Determines if the handler is considered 'broken', meaning it's a placeholder used when a handler can't be found. Overrides ViewsHandlerInterface::broken
HandlerBase::buildExposedForm	public	function	Render our chunk of the exposed handler form when selecting	1
HandlerBase::buildExposeForm	public	function	Form for exposed handler options.	2
HandlerBase::buildExtraOptionsForm	public	function	Provide a form for setting options.	1
HandlerBase::buildGroupByForm	public	function	Provide a form for aggregation settings.	1
HandlerBase::canExpose	public	function	Determine if a handler can be exposed.	2
HandlerBase::caseTransform	protected	function	Transform a string by a certain method.
HandlerBase::defaultExposeOptions	public	function	Set new exposed option defaults when exposed setting is flipped on.	2
HandlerBase::defineExtraOptions	public	function	Provide defaults for the handler.
HandlerBase::displayExposedForm	public	function	Displays the Expose form.
HandlerBase::ensureMyTable	public	function	Ensure the main table for this handler is in the query. This is used a lot. Overrides ViewsHandlerInterface::ensureMyTable	2
HandlerBase::exposedInfo	public	function	Get information about the exposed form for the form renderer.	1
HandlerBase::getDateField	public	function	Creates cross-database SQL dates.	2
HandlerBase::getDateFormat	public	function	Creates cross-database SQL date formatting.	2
HandlerBase::getEntityType	public	function	Determines the entity type used by this handler. Overrides ViewsHandlerInterface::getEntityType
HandlerBase::getField	public	function	Shortcut to get a handler's raw field value. Overrides ViewsHandlerInterface::getField
HandlerBase::getJoin	public	function	Get the join object that should be used for this handler. Overrides ViewsHandlerInterface::getJoin
HandlerBase::getModuleHandler	protected	function	Gets the module handler.
HandlerBase::getTableJoin	public static	function	Fetches a handler to join one table to a primary table from the data cache. Overrides ViewsHandlerInterface::getTableJoin
HandlerBase::getViewsData	protected	function	Gets views data service.
HandlerBase::hasExtraOptions	public	function	If a handler has 'extra options' it will get a little settings widget and another form called extra_options.	1
HandlerBase::isAGroup	public	function	Returns TRUE if the exposed filter works like a grouped filter.	1
HandlerBase::isExposed	public	function	Determine if this item is 'exposed', meaning it provides form elements to let users modify the view.
HandlerBase::multipleExposedInput	public	function	Define if the exposed input has to be submitted multiple times. This is TRUE when exposed filters grouped are using checkboxes as widgets.	1
HandlerBase::placeholder	protected	function	Provides a unique placeholders for handlers.
HandlerBase::postExecute	public	function	Run after the view is executed, before the result is cached. Overrides ViewsHandlerInterface::postExecute
HandlerBase::preQuery	public	function	Run before the view is built. Overrides ViewsHandlerInterface::preQuery	2
HandlerBase::sanitizeValue	public	function	Sanitize the value for output. Overrides ViewsHandlerInterface::sanitizeValue
HandlerBase::setModuleHandler	public	function	Sets the module handler.
HandlerBase::setRelationship	public	function	Called just prior to query(), this lets a handler set up any relationship it needs. Overrides ViewsHandlerInterface::setRelationship
HandlerBase::setViewsData	public	function
HandlerBase::showExposeButton	public	function	Shortcut to display the expose/hide button.	2
HandlerBase::showExposeForm	public	function	Shortcut to display the exposed options form. Overrides ViewsHandlerInterface::showExposeForm
HandlerBase::storeExposedInput	public	function	If set to remember exposed input in the session, store it there.	1
HandlerBase::submitExposed	public	function	Submit the exposed handler form
HandlerBase::submitExposeForm	public	function	Perform any necessary changes to the form exposes prior to storage. There is no need for this function to actually store the data.
HandlerBase::submitExtraOptionsForm	public	function	Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data.
HandlerBase::submitFormCalculateOptions	public	function	Calculates options stored on the handler	1
HandlerBase::submitGroupByForm	public	function	Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data.	1
HandlerBase::submitTemporaryForm	public	function	A submit handler that is used for storing temporary items when using multi-step changes, such as ajax requests.
HandlerBase::validate	public	function	Validate that the plugin is correct and can be saved. Overrides PluginBase::validate	2
HandlerBase::validateExposed	public	function	Validate the exposed handler form	4
HandlerBase::validateExposeForm	public	function	Validate the options form.	1
HandlerBase::validateExtraOptionsForm	public	function	Validate the options form.
HandlerBase::__construct	public	function	Constructs a Handler object. Overrides PluginBase::__construct	44
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	1
PluginBase::$definition	public	property	Plugins's definition
PluginBase::$displayHandler	public	property	The display object this plugin is for.
PluginBase::$options	public	property	Options for this plugin will be held here.
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.	1
PluginBase::$pluginId	protected	property	The plugin_id.
PluginBase::$renderer	protected	property	Stores the render API renderer.	3
PluginBase::$usesOptions	protected	property	Denotes whether the plugin has an additional options form.	8
PluginBase::$view	public	property	The top object of a view.	1
PluginBase::create	public static	function	Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create	62
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::destroy	public	function	Clears a plugin. Overrides ViewsPluginInterface::destroy	2
PluginBase::doFilterByDefinedOptions	protected	function	Do the work to filter out stored options depending on the defined options.
PluginBase::filterByDefinedOptions	public	function	Filter out stored options depending on the defined options. Overrides ViewsPluginInterface::filterByDefinedOptions
PluginBase::getAvailableGlobalTokens	public	function	Returns an array of available token replacements. Overrides ViewsPluginInterface::getAvailableGlobalTokens
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition	3
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::getProvider	public	function	Returns the plugin provider. Overrides ViewsPluginInterface::getProvider
PluginBase::getRenderer	protected	function	Returns the render API renderer.	1
PluginBase::globalTokenForm	public	function	Adds elements for available core tokens to a form. Overrides ViewsPluginInterface::globalTokenForm
PluginBase::globalTokenReplace	public	function	Returns a string with any core tokens replaced. Overrides ViewsPluginInterface::globalTokenReplace
PluginBase::INCLUDE_ENTITY		constant	Include entity row languages when listing languages.
PluginBase::INCLUDE_NEGOTIATED		constant	Include negotiated languages when listing languages.
PluginBase::isConfigurable	public	function	Determines if the plugin is configurable.
PluginBase::listLanguages	protected	function	Makes an array of languages, optionally including special languages.
PluginBase::pluginTitle	public	function	Return the human readable name of the display. Overrides ViewsPluginInterface::pluginTitle
PluginBase::preRenderAddFieldsetMarkup	public static	function	Moves form elements into fieldsets for presentation purposes. Overrides ViewsPluginInterface::preRenderAddFieldsetMarkup
PluginBase::preRenderFlattenData	public static	function	Flattens the structure of form elements. Overrides ViewsPluginInterface::preRenderFlattenData
PluginBase::queryLanguageSubstitutions	public static	function	Returns substitutions for Views queries for languages.
PluginBase::setOptionDefaults	protected	function	Fills up the options of the plugin with defaults.
PluginBase::submitOptionsForm	public	function	Handle any special handling on the validate form. Overrides ViewsPluginInterface::submitOptionsForm	16
PluginBase::summaryTitle	public	function	Returns the summary of the settings in the display. Overrides ViewsPluginInterface::summaryTitle	6
PluginBase::themeFunctions	public	function	Provide a full list of possible theme templates used by this style. Overrides ViewsPluginInterface::themeFunctions	1
PluginBase::trustedCallbacks	public static	function	Lists the trusted callbacks provided by the implementing class. Overrides TrustedCallbackInterface::trustedCallbacks	6
PluginBase::unpackOptions	public	function	Unpack options over our existing defaults, drilling down into arrays so that defaults don't get totally blown away. Overrides ViewsPluginInterface::unpackOptions
PluginBase::usesOptions	public	function	Returns the usesOptions property. Overrides ViewsPluginInterface::usesOptions	8
PluginBase::validateOptionsForm	public	function	Validate the options form. Overrides ViewsPluginInterface::validateOptionsForm	15
PluginBase::viewsTokenReplace	protected	function	Replaces Views' tokens in a given string. The resulting string will be sanitized with Xss::filterAdmin.	1
PluginBase::VIEWS_QUERY_LANGUAGE_SITE_DEFAULT		constant	Query string to indicate the site default language.
RelationRelationship::buildOptionsForm	public	function	Let the user choose r_index. Overrides RelationshipPluginBase::buildOptionsForm
RelationRelationship::defineOptions	public	function	Define r_index option. Overrides RelationshipPluginBase::defineOptions
RelationRelationship::ensureNoDuplicateEntities	protected	function
RelationRelationship::query	public	function	Add anything to the query that we might need to. Overrides RelationshipPluginBase::query
RelationshipPluginBase::$alias	public	property	The relationship alias.
RelationshipPluginBase::calculateDependencies	public	function	Calculates dependencies for the configured plugin. Overrides HandlerBase::calculateDependencies	1
RelationshipPluginBase::init	public	function	Overrides \Drupal\views\Plugin\views\HandlerBase::init(). Overrides HandlerBase::init	1
RelationshipPluginBase::usesGroupBy	public	function	Provides the handler some groupby. Overrides HandlerBase::usesGroupBy
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
TrustedCallbackInterface::THROW_EXCEPTION		constant	Untrusted callbacks throw exceptions.
TrustedCallbackInterface::TRIGGER_SILENCED_DEPRECATION		constant	Untrusted callbacks trigger silenced E_USER_DEPRECATION errors.
TrustedCallbackInterface::TRIGGER_WARNING		constant	Untrusted callbacks trigger E_USER_WARNING errors.

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class RelationRelationship in Relation 8

Plugin annotation

Hierarchy

File

Namespace

Members

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