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- <?php
- /**
- * @file
- * Contains an entity type filter handler.
- */
- /**
- * This handler determines if a translation exists for a particular translation.
- */
- class entity_translation_handler_filter_translation_exists extends views_handler_filter_locale_language {
- /**
- * Add a 'entity_type' option definition.
- * @see views_handler_field::option:definition()
- */
- function option_definition() {
- $options = parent::option_definition();
- $options['entity_type'] = array('default' => '', 'translatable' => FALSE);
- $options['use_filter'] = array('default' => '', 'translatable' => FALSE);
- $options['filter'] = array('default' => '', 'translatable' => FALSE);
- return $options;
- }
- /**
- * Override the default title for the operators.
- */
- function operators() {
- $operators = parent::operators();
- $operators['in']['title'] = t('Translation exists');
- $operators['not in']['title'] = t('Translation doesn\'t exist');
- return $operators;
- }
- /**
- * Add option for setting entity type either directly or through a filter.
- * @see views_handler_field::options_form()
- */
- function options_form(&$form, &$form_state) {
- parent::options_form($form, $form_state);
- $filters = $this->get_entity_type_filters();
- if (!empty($filters)) {
- $form['use_filter'] = array(
- '#type' => 'checkbox',
- '#title' => t('Use an entity type filter.'),
- '#default_value' => $this->options['use_filter'],
- );
- $form['filter'] = array(
- '#type' => 'select',
- '#title' => t('Filter'),
- '#options' => $filters,
- '#dependency' => array(
- 'edit-options-use-filter' => array(1)
- ),
- '#default_value' => $this->options['filter'],
- );
- }
- $form['entity_type'] = array(
- '#title' => t('Entity type'),
- '#type' => 'select',
- '#options' => $this->get_allowed_types(),
- '#dependency' => array(
- 'edit-options-use-filter' => array(0)
- ),
- '#default_value' => $this->options['entity_type'],
- '#description' => t('You have to filter on a particular entity type when you use this filter'),
- );
- }
- /**
- * Get all available entity type filters that can be used to build the query.
- */
- function get_entity_type_filters() {
- // We need to build the query to know about the available fields.
- $this->view->build();
- $filters = array();
- foreach ($this->view->filter as $key => $filter) {
- // Break if we encounter our filter, the filter must be before this one.
- if ($filter == $this) {
- break;
- }
- if ($filter instanceof entity_translation_handler_filter_entity_type && count($filter->value) == 1 && empty($filter->options['expose']['multiple'])) {
- $filters[$key] = $filter->value_title;
- }
- }
- return $filters;
- }
- /**
- * Get entity types managed by entity translation.
- */
- function get_allowed_types() {
- $allowed_types_options = variable_get('entity_translation_entity_types');
- $allowed_types = array();
- $entity_info = entity_get_info();
- foreach ($allowed_types_options as $key => $allowed) {
- if ($allowed) {
- $allowed_types[$key] = $entity_info[$key]['label'];
- }
- }
- return $allowed_types;
- }
- /**
- * Override the default behaviour of the handler.
- */
- function query() {
- $this->ensure_my_table();
- // We need a subquery to determine not in.
- if ($this->operator == 'not in') {
- $entity_type = 'node';
- if ($this->options['use_filter'] && isset($this->view->filter[$this->options['filter']])) {
- $filter = $this->view->filter[$this->options['filter']];
- $entity_type = current($filter->value);
- }
- else {
- $this->query->add_where($this->options['group'], "$this->table_alias.entity_type", $this->options['entity_type'], '=');
- $entity_type = $this->options['entity_type'];
- }
- $query = db_select('entity_translation', 'es')
- ->condition('entity_type', $entity_type)
- ->condition('language', $this->value);
- $query->addField('es', 'entity_id');
- $this->query->add_where($this->options['group'], "$this->table_alias.entity_id", $query, $this->operator);
- }
- // We can determine if a translation exists without a subquery.
- else {
- $value = array_keys($this->value);
- $this->query->add_where($this->options['group'], "$this->table_alias.source", '', '<>');
- $this->query->add_where($this->options['group'], "$this->table_alias.language", array_values($this->value), $this->operator);
- }
- }
- }
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