- <?php
- * @file
- * Contains an implementation of RSS items based on fields on a row plugin.
- */
-
- * Renders an RSS item based on fields.
- */
- class views_plugin_row_rss_fields extends views_plugin_row {
- function option_definition() {
- $options = parent::option_definition();
- $options['title_field'] = array('default' => '');
- $options['link_field'] = array('default' => '');
- $options['description_field'] = array('default' => '');
- $options['creator_field'] = array('default' => '');
- $options['date_field'] = array('default' => '');
- $options['guid_field_options']['guid_field'] = array('default' => '');
- $options['guid_field_options']['guid_field_is_permalink'] = array('default' => TRUE, 'bool' => TRUE);
- return $options;
- }
-
- function options_form(&$form, &$form_state) {
- parent::options_form($form, $form_state);
-
- $initial_labels = array('' => t('- None -'));
- $view_fields_labels = $this->display->handler->get_field_labels();
- $view_fields_labels = array_merge($initial_labels, $view_fields_labels);
-
- $form['title_field'] = array(
- '#type' => 'select',
- '#title' => t('Title field'),
- '#description' => t('The field that is going to be used as the RSS item title for each row.'),
- '#options' => $view_fields_labels,
- '#default_value' => $this->options['title_field'],
- '#required' => TRUE,
- );
- $form['link_field'] = array(
- '#type' => 'select',
- '#title' => t('Link field'),
- '#description' => t('The field that is going to be used as the RSS item link for each row. This must be a Backdrop relative path.'),
- '#options' => $view_fields_labels,
- '#default_value' => $this->options['link_field'],
- '#required' => TRUE,
- );
- $form['description_field'] = array(
- '#type' => 'select',
- '#title' => t('Description field'),
- '#description' => t('The field that is going to be used as the RSS item description for each row.'),
- '#options' => $view_fields_labels,
- '#default_value' => $this->options['description_field'],
- '#required' => TRUE,
- );
- $form['creator_field'] = array(
- '#type' => 'select',
- '#title' => t('Creator field'),
- '#description' => t('The field that is going to be used as the RSS item creator for each row.'),
- '#options' => $view_fields_labels,
- '#default_value' => $this->options['creator_field'],
- '#required' => TRUE,
- );
- $form['date_field'] = array(
- '#type' => 'select',
- '#title' => t('Publication date field'),
- '#description' => t('The field that is going to be used as the RSS item pubDate for each row. It needs to be in RFC 2822 format.'),
- '#options' => $view_fields_labels,
- '#default_value' => $this->options['date_field'],
- '#required' => TRUE,
- );
- $form['guid_field_options'] = array(
- '#type' => 'fieldset',
- '#title' => t('GUID settings'),
- '#collapsible' => FALSE,
- '#collapsed' => FALSE,
- );
- $form['guid_field_options']['guid_field'] = array(
- '#type' => 'select',
- '#title' => t('GUID field'),
- '#description' => t('The globally unique identifier of the RSS item.'),
- '#options' => $view_fields_labels,
- '#default_value' => $this->options['guid_field_options']['guid_field'],
- '#required' => TRUE,
- );
- $form['guid_field_options']['guid_field_is_permalink'] = array(
- '#type' => 'checkbox',
- '#title' => t('GUID is permalink'),
- '#description' => t('The RSS item GUID is a permalink.'),
- '#default_value' => $this->options['guid_field_options']['guid_field_is_permalink'],
- );
- }
-
- function validate() {
- $errors = parent::validate();
- $required_options = array('title_field', 'link_field', 'description_field', 'creator_field', 'date_field');
- foreach ($required_options as $required_option) {
- if (empty($this->options[$required_option])) {
- $errors[] = t('Row style plugin requires specifying which views fields to use for RSS item.');
- break;
- }
- }
-
- if (empty($this->options['guid_field_options']['guid_field'])) {
- $errors[] = t('Row style plugin requires specifying which views fields to use for RSS item.');
- }
- return $errors;
- }
-
- function render($row) {
- static $row_index;
- if (!isset($row_index)) {
- $row_index = 0;
- }
- if (function_exists('rdf_get_namespaces')) {
-
-
- $xml_rdf_namespaces = array();
- foreach (rdf_get_namespaces() as $prefix => $uri) {
- $xml_rdf_namespaces['xmlns:' . $prefix] = $uri;
- }
- $this->view->style_plugin->namespaces += $xml_rdf_namespaces;
- }
-
-
- $item = new stdClass();
- $item->title = $this->get_field($row_index, $this->options['title_field']);
- $item->link = url($this->get_field($row_index, $this->options['link_field']), array('absolute' => TRUE));
- $item->description = $this->get_field($row_index, $this->options['description_field']);
- $item->elements = array(
- array('key' => 'pubDate', 'value' => $this->get_field($row_index, $this->options['date_field'])),
- array(
- 'key' => 'dc:creator',
- 'value' => $this->get_field($row_index, $this->options['creator_field']),
- 'namespace' => array('xmlns:dc' => 'http://purl.org/dc/elements/1.1/'),
- ),
- );
- $guid_is_permalink_string = 'false';
- $item_guid = $this->get_field($row_index, $this->options['guid_field_options']['guid_field']);
- if ($this->options['guid_field_options']['guid_field_is_permalink']) {
- $guid_is_permalink_string = 'true';
- $item_guid = url($item_guid, array('absolute' => TRUE));
- }
- $item->elements[] = array(
- 'key' => 'guid',
- 'value' => $item_guid,
- 'attributes' => array('isPermaLink' => $guid_is_permalink_string),
- );
-
- $row_index++;
-
- foreach ($item->elements as $element) {
- if (isset($element['namespace'])) {
- $this->view->style_plugin->namespaces = array_merge($this->view->style_plugin->namespaces, $element['namespace']);
- }
- }
-
- return theme($this->theme_functions(),
- array(
- 'view' => $this->view,
- 'options' => $this->options,
- 'row' => $item,
- 'field_alias' => isset($this->field_alias) ? $this->field_alias : '',
- ));
- }
-
-
- * Retrieves a views field value from the style plugin.
- *
- * @param $index
- * The index count of the row as expected by views_plugin_style::get_field().
- * @param $field_id
- * The ID assigned to the required field in the display.
- */
- function get_field($index, $field_id) {
- if (empty($this->view->style_plugin) || !is_object($this->view->style_plugin) || empty($field_id)) {
- return '';
- }
- return $this->view->style_plugin->get_field($index, $field_id);
- }
-
- }