--- /dev/null
+<?php
+
+/**
+ * @file
+ * Provide views data that isn't tied to any other module.
+ */
+
+use Drupal\Component\Utility\NestedArray;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Entity\Sql\SqlContentEntityStorage;
+use Drupal\Core\Render\Markup;
+use Drupal\field\FieldConfigInterface;
+use Drupal\field\FieldStorageConfigInterface;
+use Drupal\system\ActionConfigEntityInterface;
+
+/**
+ * Implements hook_views_data().
+ */
+function views_views_data() {
+ $data['views']['table']['group'] = t('Global');
+ $data['views']['table']['join'] = [
+ // #global is a special flag which allows a table to appear all the time.
+ '#global' => [],
+ ];
+
+ $data['views']['random'] = [
+ 'title' => t('Random'),
+ 'help' => t('Randomize the display order.'),
+ 'sort' => [
+ 'id' => 'random',
+ ],
+ ];
+
+ $data['views']['null'] = [
+ 'title' => t('Null'),
+ 'help' => t('Allow a contextual filter value to be ignored. The query will not be altered by this contextual filter value. Can be used when contextual filter values come from the URL, and a part of the URL needs to be ignored.'),
+ 'argument' => [
+ 'id' => 'null',
+ ],
+ ];
+
+ $data['views']['nothing'] = [
+ 'title' => t('Custom text'),
+ 'help' => t('Provide custom text or link.'),
+ 'field' => [
+ 'id' => 'custom',
+ ],
+ ];
+
+ $data['views']['counter'] = [
+ 'title' => t('View result counter'),
+ 'help' => t('Displays the actual position of the view result'),
+ 'field' => [
+ 'id' => 'counter',
+ ],
+ ];
+
+ $data['views']['area'] = [
+ 'title' => t('Text area'),
+ 'help' => t('Provide markup text for the area.'),
+ 'area' => [
+ 'id' => 'text',
+ ],
+ ];
+
+ $data['views']['area_text_custom'] = [
+ 'title' => t('Unfiltered text'),
+ 'help' => t('Add unrestricted, custom text or markup. This is similar to the custom text field.'),
+ 'area' => [
+ 'id' => 'text_custom',
+ ],
+ ];
+
+ $data['views']['title'] = [
+ 'title' => t('Title override'),
+ 'help' => t('Override the default view title for this view. This is useful to display an alternative title when a view is empty.'),
+ 'area' => [
+ 'id' => 'title',
+ 'sub_type' => 'empty',
+ ],
+ ];
+
+ $data['views']['view'] = [
+ 'title' => t('View area'),
+ 'help' => t('Insert a view inside an area.'),
+ 'area' => [
+ 'id' => 'view',
+ ],
+ ];
+
+ $data['views']['result'] = [
+ 'title' => t('Result summary'),
+ 'help' => t('Shows result summary, for example the items per page.'),
+ 'area' => [
+ 'id' => 'result',
+ ],
+ ];
+
+ $data['views']['messages'] = [
+ 'title' => t('Messages'),
+ 'help' => t('Displays messages in an area.'),
+ 'area' => [
+ 'id' => 'messages',
+ ],
+ ];
+
+ $data['views']['http_status_code'] = [
+ 'title' => t('Response status code'),
+ 'help' => t('Alter the HTTP response status code used by this view, mostly helpful for empty results.'),
+ 'area' => [
+ 'id' => 'http_status_code',
+ ],
+ ];
+
+ $data['views']['combine'] = [
+ 'title' => t('Combine fields filter'),
+ 'help' => t('Combine multiple fields together and search by them.'),
+ 'filter' => [
+ 'id' => 'combine',
+ ],
+ ];
+
+ $data['views']['dropbutton'] = [
+ 'title' => t('Dropbutton'),
+ 'help' => t('Display fields in a dropbutton.'),
+ 'field' => [
+ 'id' => 'dropbutton',
+ ],
+ ];
+
+ // Registers an entity area handler per entity type.
+ foreach (\Drupal::entityManager()->getDefinitions() as $entity_type_id => $entity_type) {
+ // Excludes entity types, which cannot be rendered.
+ if ($entity_type->hasViewBuilderClass()) {
+ $label = $entity_type->getLabel();
+ $data['views']['entity_' . $entity_type_id] = [
+ 'title' => t('Rendered entity - @label', ['@label' => $label]),
+ 'help' => t('Displays a rendered @label entity in an area.', ['@label' => $label]),
+ 'area' => [
+ 'entity_type' => $entity_type_id,
+ 'id' => 'entity',
+ ],
+ ];
+ }
+ }
+
+ // Registers an action bulk form per entity.
+ foreach (\Drupal::entityManager()->getDefinitions() as $entity_type => $entity_info) {
+ $actions = array_filter(\Drupal::entityManager()->getStorage('action')->loadMultiple(), function (ActionConfigEntityInterface $action) use ($entity_type) {
+ return $action->getType() == $entity_type;
+ });
+ if (empty($actions)) {
+ continue;
+ }
+ $data[$entity_info->getBaseTable()][$entity_type . '_bulk_form'] = [
+ 'title' => t('Bulk update'),
+ 'help' => t('Allows users to apply an action to one or more items.'),
+ 'field' => [
+ 'id' => 'bulk_form',
+ ],
+ ];
+ }
+
+ // Registers views data for the entity itself.
+ foreach (\Drupal::entityManager()->getDefinitions() as $entity_type_id => $entity_type) {
+ if ($entity_type->hasHandlerClass('views_data')) {
+ /** @var \Drupal\views\EntityViewsDataInterface $views_data */
+ $views_data = \Drupal::entityManager()->getHandler($entity_type_id, 'views_data');
+ $data = NestedArray::mergeDeep($data, $views_data->getViewsData());
+ }
+ }
+
+
+ // Field modules can implement hook_field_views_data() to override the default
+ // behavior for adding fields.
+ $module_handler = \Drupal::moduleHandler();
+
+ $entity_manager = \Drupal::entityManager();
+ if ($entity_manager->hasDefinition('field_storage_config')) {
+ /** @var \Drupal\field\FieldStorageConfigInterface $field_storage */
+ foreach ($entity_manager->getStorage('field_storage_config')->loadMultiple() as $field_storage) {
+ if (_views_field_get_entity_type_storage($field_storage)) {
+ $result = (array) $module_handler->invoke($field_storage->getTypeProvider(), 'field_views_data', [$field_storage]);
+ if (empty($result)) {
+ $result = views_field_default_views_data($field_storage);
+ }
+ $module_handler->alter('field_views_data', $result, $field_storage);
+
+ if (is_array($result)) {
+ $data = NestedArray::mergeDeep($result, $data);
+ }
+ }
+ }
+ }
+
+ return $data;
+}
+
+/**
+ * Implements hook_views_data_alter().
+ *
+ * Field modules can implement hook_field_views_data_views_data_alter() to
+ * alter the views data on a per field basis. This is weirdly named so as
+ * not to conflict with the \Drupal::moduleHandler()->alter('field_views_data')
+ * in views_views_data().
+ */
+function views_views_data_alter(&$data) {
+ $entity_manager = \Drupal::entityManager();
+ if (!$entity_manager->hasDefinition('field_storage_config')) {
+ return;
+ }
+ /** @var \Drupal\field\FieldStorageConfigInterface $field_storage */
+ foreach ($entity_manager->getStorage('field_storage_config')->loadMultiple() as $field_storage) {
+ if (_views_field_get_entity_type_storage($field_storage)) {
+ $function = $field_storage->getTypeProvider() . '_field_views_data_views_data_alter';
+ if (function_exists($function)) {
+ $function($data, $field_storage);
+ }
+ }
+ }
+}
+
+/**
+ * Determines whether the entity type the field appears in is SQL based.
+ *
+ * @param \Drupal\field\FieldStorageConfigInterface $field_storage
+ * The field storage definition.
+ *
+ * @return \Drupal\Core\Entity\Sql\SqlContentEntityStorage
+ * Returns the entity type storage if supported.
+ */
+function _views_field_get_entity_type_storage(FieldStorageConfigInterface $field_storage) {
+ $result = FALSE;
+ $entity_manager = \Drupal::entityManager();
+ if ($entity_manager->hasDefinition($field_storage->getTargetEntityTypeId())) {
+ $storage = $entity_manager->getStorage($field_storage->getTargetEntityTypeId());
+ $result = $storage instanceof SqlContentEntityStorage ? $storage : FALSE;
+ }
+ return $result;
+}
+
+/**
+ * Returns the label of a certain field.
+ *
+ * Therefore it looks up in all bundles to find the most used field.
+ */
+function views_entity_field_label($entity_type, $field_name) {
+ $label_counter = [];
+ $all_labels = [];
+ // Count the amount of fields per label per field storage.
+ foreach (array_keys(\Drupal::entityManager()->getBundleInfo($entity_type)) as $bundle) {
+ $bundle_fields = array_filter(\Drupal::entityManager()->getFieldDefinitions($entity_type, $bundle), function ($field_definition) {
+ return $field_definition instanceof FieldConfigInterface;
+ });
+ if (isset($bundle_fields[$field_name])) {
+ $field = $bundle_fields[$field_name];
+ $label = $field->getLabel();
+ $label_counter[$label] = isset($label_counter[$label]) ? ++$label_counter[$label] : 1;
+ $all_labels[$label] = TRUE;
+ }
+ }
+ if (empty($label_counter)) {
+ return [$field_name, $all_labels];
+ }
+ // Sort the field labels by it most used label and return the most used one.
+ // If the counts are equal, sort by the label to ensure the result is
+ // deterministic.
+ uksort($label_counter, function($a, $b) use ($label_counter) {
+ if ($label_counter[$a] === $label_counter[$b]) {
+ return strcmp($a, $b);
+ }
+ return $label_counter[$a] > $label_counter[$b] ? -1 : 1;
+ });
+ $label_counter = array_keys($label_counter);
+ return [$label_counter[0], $all_labels];
+}
+
+/**
+ * Default views data implementation for a field.
+ *
+ * @param \Drupal\field\FieldStorageConfigInterface $field_storage
+ * The field definition.
+ *
+ * @return array
+ * The default views data for the field.
+ */
+function views_field_default_views_data(FieldStorageConfigInterface $field_storage) {
+ $data = [];
+
+ // Check the field type is available.
+ if (!\Drupal::service('plugin.manager.field.field_type')->hasDefinition($field_storage->getType())) {
+ return $data;
+ }
+ // Check the field storage has fields.
+ if (!$field_storage->getBundles()) {
+ return $data;
+ }
+
+ // Ignore custom storage too.
+ if ($field_storage->hasCustomStorage()) {
+ return $data;
+ }
+
+ // Check whether the entity type storage is supported.
+ $storage = _views_field_get_entity_type_storage($field_storage);
+ if (!$storage) {
+ return $data;
+ }
+
+ $field_name = $field_storage->getName();
+ $field_columns = $field_storage->getColumns();
+
+ // Grab information about the entity type tables.
+ // We need to join to both the base table and the data table, if available.
+ $entity_manager = \Drupal::entityManager();
+ $entity_type_id = $field_storage->getTargetEntityTypeId();
+ $entity_type = $entity_manager->getDefinition($entity_type_id);
+ if (!$base_table = $entity_type->getBaseTable()) {
+ // We cannot do anything if for some reason there is no base table.
+ return $data;
+ }
+ $entity_tables = [$base_table => $entity_type_id];
+ // Some entities may not have a data table.
+ $data_table = $entity_type->getDataTable();
+ if ($data_table) {
+ $entity_tables[$data_table] = $entity_type_id;
+ }
+ $entity_revision_table = $entity_type->getRevisionTable();
+ $supports_revisions = $entity_type->hasKey('revision') && $entity_revision_table;
+ if ($supports_revisions) {
+ $entity_tables[$entity_revision_table] = $entity_type_id;
+ $entity_revision_data_table = $entity_type->getRevisionDataTable();
+ if ($entity_revision_data_table) {
+ $entity_tables[$entity_revision_data_table] = $entity_type_id;
+ }
+ }
+
+ // Description of the field tables.
+ // @todo Generalize this code to make it work with any table layout. See
+ // https://www.drupal.org/node/2079019.
+ $table_mapping = $storage->getTableMapping();
+ $field_tables = [
+ EntityStorageInterface::FIELD_LOAD_CURRENT => [
+ 'table' => $table_mapping->getDedicatedDataTableName($field_storage),
+ 'alias' => "{$entity_type_id}__{$field_name}",
+ ],
+ ];
+ if ($supports_revisions) {
+ $field_tables[EntityStorageInterface::FIELD_LOAD_REVISION] = [
+ 'table' => $table_mapping->getDedicatedRevisionTableName($field_storage),
+ 'alias' => "{$entity_type_id}_revision__{$field_name}",
+ ];
+ }
+
+ // Build the relationships between the field table and the entity tables.
+ $table_alias = $field_tables[EntityStorageInterface::FIELD_LOAD_CURRENT]['alias'];
+ if ($data_table) {
+ // Tell Views how to join to the base table, via the data table.
+ $data[$table_alias]['table']['join'][$data_table] = [
+ 'table' => $table_mapping->getDedicatedDataTableName($field_storage),
+ 'left_field' => $entity_type->getKey('id'),
+ 'field' => 'entity_id',
+ 'extra' => [
+ ['field' => 'deleted', 'value' => 0, 'numeric' => TRUE],
+ ['left_field' => 'langcode', 'field' => 'langcode'],
+ ],
+ ];
+ }
+ else {
+ // If there is no data table, just join directly.
+ $data[$table_alias]['table']['join'][$base_table] = [
+ 'table' => $table_mapping->getDedicatedDataTableName($field_storage),
+ 'left_field' => $entity_type->getKey('id'),
+ 'field' => 'entity_id',
+ 'extra' => [
+ ['field' => 'deleted', 'value' => 0, 'numeric' => TRUE],
+ ],
+ ];
+ }
+
+ if ($supports_revisions) {
+ $table_alias = $field_tables[EntityStorageInterface::FIELD_LOAD_REVISION]['alias'];
+ if ($entity_revision_data_table) {
+ // Tell Views how to join to the revision table, via the data table.
+ $data[$table_alias]['table']['join'][$entity_revision_data_table] = [
+ 'table' => $table_mapping->getDedicatedRevisionTableName($field_storage),
+ 'left_field' => $entity_type->getKey('revision'),
+ 'field' => 'revision_id',
+ 'extra' => [
+ ['field' => 'deleted', 'value' => 0, 'numeric' => TRUE],
+ ['left_field' => 'langcode', 'field' => 'langcode'],
+ ],
+ ];
+ }
+ else {
+ // If there is no data table, just join directly.
+ $data[$table_alias]['table']['join'][$entity_revision_table] = [
+ 'table' => $table_mapping->getDedicatedRevisionTableName($field_storage),
+ 'left_field' => $entity_type->getKey('revision'),
+ 'field' => 'revision_id',
+ 'extra' => [
+ ['field' => 'deleted', 'value' => 0, 'numeric' => TRUE],
+ ],
+ ];
+ }
+ }
+
+ $group_name = $entity_type->getLabel();
+ // Get the list of bundles the field appears in.
+ $bundles_names = $field_storage->getBundles();
+ // Build the list of additional fields to add to queries.
+ $add_fields = ['delta', 'langcode', 'bundle'];
+ foreach (array_keys($field_columns) as $column) {
+ $add_fields[] = $table_mapping->getFieldColumnName($field_storage, $column);
+ }
+ // Determine the label to use for the field. We don't have a label available
+ // at the field level, so we just go through all fields and take the one
+ // which is used the most frequently.
+ list($label, $all_labels) = views_entity_field_label($entity_type_id, $field_name);
+
+ // Expose data for the field as a whole.
+ foreach ($field_tables as $type => $table_info) {
+ $table = $table_info['table'];
+ $table_alias = $table_info['alias'];
+
+ if ($type == EntityStorageInterface::FIELD_LOAD_CURRENT) {
+ $group = $group_name;
+ $field_alias = $field_name;
+ }
+ else {
+ $group = t('@group (historical data)', ['@group' => $group_name]);
+ $field_alias = $field_name . '-revision_id';
+ }
+
+ $data[$table_alias][$field_alias] = [
+ 'group' => $group,
+ 'title' => $label,
+ 'title short' => $label,
+ 'help' => t('Appears in: @bundles.', ['@bundles' => implode(', ', $bundles_names)]),
+ ];
+
+ // Go through and create a list of aliases for all possible combinations of
+ // entity type + name.
+ $aliases = [];
+ $also_known = [];
+ foreach ($all_labels as $label_name => $true) {
+ if ($type == EntityStorageInterface::FIELD_LOAD_CURRENT) {
+ if ($label != $label_name) {
+ $aliases[] = [
+ 'base' => $base_table,
+ 'group' => $group_name,
+ 'title' => $label_name,
+ 'help' => t('This is an alias of @group: @field.', ['@group' => $group_name, '@field' => $label]),
+ ];
+ $also_known[] = t('@group: @field', ['@group' => $group_name, '@field' => $label_name]);
+ }
+ }
+ elseif ($supports_revisions && $label != $label_name) {
+ $aliases[] = [
+ 'base' => $table,
+ 'group' => t('@group (historical data)', ['@group' => $group_name]),
+ 'title' => $label_name,
+ 'help' => t('This is an alias of @group: @field.', ['@group' => $group_name, '@field' => $label]),
+ ];
+ $also_known[] = t('@group (historical data): @field', ['@group' => $group_name, '@field' => $label_name]);
+ }
+ }
+ if ($aliases) {
+ $data[$table_alias][$field_alias]['aliases'] = $aliases;
+ // The $also_known variable contains markup that is HTML escaped and that
+ // loses safeness when imploded. The help text is used in #description
+ // and therefore XSS admin filtered by default. Escaped HTML is not
+ // altered by XSS filtering, therefore it is safe to just concatenate the
+ // strings. Afterwards we mark the entire string as safe, so it won't be
+ // escaped, no matter where it is used.
+ // Considering the dual use of this help data (both as metadata and as
+ // help text), other patterns such as use of #markup would not be correct
+ // here.
+ $data[$table_alias][$field_alias]['help'] = Markup::create($data[$table_alias][$field_alias]['help'] . ' ' . t('Also known as:') . ' ' . implode(', ', $also_known));
+ }
+
+ $keys = array_keys($field_columns);
+ $real_field = reset($keys);
+ $data[$table_alias][$field_alias]['field'] = [
+ 'table' => $table,
+ 'id' => 'field',
+ 'field_name' => $field_name,
+ 'entity_type' => $entity_type_id,
+ // Provide a real field for group by.
+ 'real field' => $field_alias . '_' . $real_field,
+ 'additional fields' => $add_fields,
+ // Default the element type to div, let the UI change it if necessary.
+ 'element type' => 'div',
+ 'is revision' => $type == EntityStorageInterface::FIELD_LOAD_REVISION,
+ ];
+ }
+
+ // Expose data for each field property individually.
+ foreach ($field_columns as $column => $attributes) {
+ $allow_sort = TRUE;
+
+ // Identify likely filters and arguments for each column based on field type.
+ switch ($attributes['type']) {
+ case 'int':
+ case 'mediumint':
+ case 'tinyint':
+ case 'bigint':
+ case 'serial':
+ case 'numeric':
+ case 'float':
+ $filter = 'numeric';
+ $argument = 'numeric';
+ $sort = 'standard';
+ if ($field_storage->getType() == 'boolean') {
+ $filter = 'boolean';
+ }
+ break;
+ case 'text':
+ case 'blob':
+ // It does not make sense to sort by blob or text.
+ $allow_sort = FALSE;
+ default:
+ $filter = 'string';
+ $argument = 'string';
+ $sort = 'standard';
+ break;
+ }
+
+ if (count($field_columns) == 1 || $column == 'value') {
+ $title = t('@label (@name)', ['@label' => $label, '@name' => $field_name]);
+ $title_short = $label;
+ }
+ else {
+ $title = t('@label (@name:@column)', ['@label' => $label, '@name' => $field_name, '@column' => $column]);
+ $title_short = t('@label:@column', ['@label' => $label, '@column' => $column]);
+ }
+
+ // Expose data for the property.
+ foreach ($field_tables as $type => $table_info) {
+ $table = $table_info['table'];
+ $table_alias = $table_info['alias'];
+
+ if ($type == EntityStorageInterface::FIELD_LOAD_CURRENT) {
+ $group = $group_name;
+ }
+ else {
+ $group = t('@group (historical data)', ['@group' => $group_name]);
+ }
+ $column_real_name = $table_mapping->getFieldColumnName($field_storage, $column);
+
+ // Load all the fields from the table by default.
+ $additional_fields = $table_mapping->getAllColumns($table);
+
+ $data[$table_alias][$column_real_name] = [
+ 'group' => $group,
+ 'title' => $title,
+ 'title short' => $title_short,
+ 'help' => t('Appears in: @bundles.', ['@bundles' => implode(', ', $bundles_names)]),
+ ];
+
+ // Go through and create a list of aliases for all possible combinations of
+ // entity type + name.
+ $aliases = [];
+ $also_known = [];
+ foreach ($all_labels as $label_name => $true) {
+ if ($label != $label_name) {
+ if (count($field_columns) == 1 || $column == 'value') {
+ $alias_title = t('@label (@name)', ['@label' => $label_name, '@name' => $field_name]);
+ }
+ else {
+ $alias_title = t('@label (@name:@column)', ['@label' => $label_name, '@name' => $field_name, '@column' => $column]);
+ }
+ $aliases[] = [
+ 'group' => $group_name,
+ 'title' => $alias_title,
+ 'help' => t('This is an alias of @group: @field.', ['@group' => $group_name, '@field' => $title]),
+ ];
+ $also_known[] = t('@group: @field', ['@group' => $group_name, '@field' => $title]);
+ }
+ }
+ if ($aliases) {
+ $data[$table_alias][$column_real_name]['aliases'] = $aliases;
+ // The $also_known variable contains markup that is HTML escaped and
+ // that loses safeness when imploded. The help text is used in
+ // #description and therefore XSS admin filtered by default. Escaped
+ // HTML is not altered by XSS filtering, therefore it is safe to just
+ // concatenate the strings. Afterwards we mark the entire string as
+ // safe, so it won't be escaped, no matter where it is used.
+ // Considering the dual use of this help data (both as metadata and as
+ // help text), other patterns such as use of #markup would not be
+ // correct here.
+ $data[$table_alias][$column_real_name]['help'] = Markup::create($data[$table_alias][$column_real_name]['help'] . ' ' . t('Also known as:') . ' ' . implode(', ', $also_known));
+ }
+
+ $data[$table_alias][$column_real_name]['argument'] = [
+ 'field' => $column_real_name,
+ 'table' => $table,
+ 'id' => $argument,
+ 'additional fields' => $additional_fields,
+ 'field_name' => $field_name,
+ 'entity_type' => $entity_type_id,
+ 'empty field name' => t('- No value -'),
+ ];
+ $data[$table_alias][$column_real_name]['filter'] = [
+ 'field' => $column_real_name,
+ 'table' => $table,
+ 'id' => $filter,
+ 'additional fields' => $additional_fields,
+ 'field_name' => $field_name,
+ 'entity_type' => $entity_type_id,
+ 'allow empty' => TRUE,
+ ];
+ if (!empty($allow_sort)) {
+ $data[$table_alias][$column_real_name]['sort'] = [
+ 'field' => $column_real_name,
+ 'table' => $table,
+ 'id' => $sort,
+ 'additional fields' => $additional_fields,
+ 'field_name' => $field_name,
+ 'entity_type' => $entity_type_id,
+ ];
+ }
+
+ // Set click sortable if there is a field definition.
+ if (isset($data[$table_alias][$field_name]['field'])) {
+ $data[$table_alias][$field_name]['field']['click sortable'] = $allow_sort;
+ }
+
+ // Expose additional delta column for multiple value fields.
+ if ($field_storage->isMultiple()) {
+ $title_delta = t('@label (@name:delta)', ['@label' => $label, '@name' => $field_name]);
+ $title_short_delta = t('@label:delta', ['@label' => $label]);
+
+ $data[$table_alias]['delta'] = [
+ 'group' => $group,
+ 'title' => $title_delta,
+ 'title short' => $title_short_delta,
+ 'help' => t('Delta - Appears in: @bundles.', ['@bundles' => implode(', ', $bundles_names)]),
+ ];
+ $data[$table_alias]['delta']['field'] = [
+ 'id' => 'numeric',
+ ];
+ $data[$table_alias]['delta']['argument'] = [
+ 'field' => 'delta',
+ 'table' => $table,
+ 'id' => 'numeric',
+ 'additional fields' => $additional_fields,
+ 'empty field name' => t('- No value -'),
+ 'field_name' => $field_name,
+ 'entity_type' => $entity_type_id,
+ ];
+ $data[$table_alias]['delta']['filter'] = [
+ 'field' => 'delta',
+ 'table' => $table,
+ 'id' => 'numeric',
+ 'additional fields' => $additional_fields,
+ 'field_name' => $field_name,
+ 'entity_type' => $entity_type_id,
+ 'allow empty' => TRUE,
+ ];
+ $data[$table_alias]['delta']['sort'] = [
+ 'field' => 'delta',
+ 'table' => $table,
+ 'id' => 'standard',
+ 'additional fields' => $additional_fields,
+ 'field_name' => $field_name,
+ 'entity_type' => $entity_type_id,
+ ];
+ }
+ }
+ }
+
+ return $data;
+}
+
+/**
+ * Implements hook_field_views_data().
+ *
+ * The function implements the hook in behalf of 'core' because it adds a
+ * relationship and a reverse relationship to entity_reference field type, which
+ * is provided by core.
+ */
+function core_field_views_data(FieldStorageConfigInterface $field_storage) {
+ $data = views_field_default_views_data($field_storage);
+
+ // The code below only deals with the Entity reference field type.
+ if ($field_storage->getType() != 'entity_reference') {
+ return $data;
+ }
+
+ $entity_manager = \Drupal::entityManager();
+ $entity_type_id = $field_storage->getTargetEntityTypeId();
+ /** @var \Drupal\Core\Entity\Sql\DefaultTableMapping $table_mapping */
+ $table_mapping = $entity_manager->getStorage($entity_type_id)->getTableMapping();
+
+ foreach ($data as $table_name => $table_data) {
+ // Add a relationship to the target entity type.
+ $target_entity_type_id = $field_storage->getSetting('target_type');
+ $target_entity_type = $entity_manager->getDefinition($target_entity_type_id);
+ $entity_type_id = $field_storage->getTargetEntityTypeId();
+ $entity_type = $entity_manager->getDefinition($entity_type_id);
+ $target_base_table = $target_entity_type->getDataTable() ?: $target_entity_type->getBaseTable();
+ $field_name = $field_storage->getName();
+
+ // Provide a relationship for the entity type with the entity reference
+ // field.
+ $args = [
+ '@label' => $target_entity_type->getLabel(),
+ '@field_name' => $field_name,
+ ];
+ $data[$table_name][$field_name]['relationship'] = [
+ 'title' => t('@label referenced from @field_name', $args),
+ 'label' => t('@field_name: @label', $args),
+ 'group' => $entity_type->getLabel(),
+ 'help' => t('Appears in: @bundles.', ['@bundles' => implode(', ', $field_storage->getBundles())]),
+ 'id' => 'standard',
+ 'base' => $target_base_table,
+ 'entity type' => $target_entity_type_id,
+ 'base field' => $target_entity_type->getKey('id'),
+ 'relationship field' => $field_name . '_target_id',
+ ];
+
+ // Provide a reverse relationship for the entity type that is referenced by
+ // the field.
+ $args['@entity'] = $entity_type->getLabel();
+ $args['@label'] = $target_entity_type->getLowercaseLabel();
+ $pseudo_field_name = 'reverse__' . $entity_type_id . '__' . $field_name;
+ $data[$target_base_table][$pseudo_field_name]['relationship'] = [
+ 'title' => t('@entity using @field_name', $args),
+ 'label' => t('@field_name', ['@field_name' => $field_name]),
+ 'group' => $target_entity_type->getLabel(),
+ 'help' => t('Relate each @entity with a @field_name set to the @label.', $args),
+ 'id' => 'entity_reverse',
+ 'base' => $entity_type->getDataTable() ?: $entity_type->getBaseTable(),
+ 'entity_type' => $entity_type_id,
+ 'base field' => $entity_type->getKey('id'),
+ 'field_name' => $field_name,
+ 'field table' => $table_mapping->getDedicatedDataTableName($field_storage),
+ 'field field' => $field_name . '_target_id',
+ 'join_extra' => [
+ [
+ 'field' => 'deleted',
+ 'value' => 0,
+ 'numeric' => TRUE,
+ ],
+ ],
+ ];
+ }
+
+ return $data;
+}
projects / yaffs-website / blobdiff