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<?php
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/**
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* @file
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* Definition of views_handler_field_node_revision.
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*/
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/**
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* Contains the basic 'node_revision' field handler.
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*
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* @ingroup views_field_handlers
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*/
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class views_handler_field_node_revision extends views_handler_field_node {
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/**
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* {@inheritdoc}
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*/
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public function init(&$view, &$options) {
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parent::init($view, $options);
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if (!empty($this->options['link_to_node_revision'])) {
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$this->additional_fields['vid'] = 'vid';
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$this->additional_fields['nid'] = 'nid';
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if (module_exists('translation')) {
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$this->additional_fields['language'] = array('table' => 'node', 'field' => 'language');
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}
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function option_definition() {
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$options = parent::option_definition();
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$options['link_to_node_revision'] = array('default' => FALSE, 'bool' => TRUE);
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return $options;
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}
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/**
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* Provide link to revision option.
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*/
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public function options_form(&$form, &$form_state) {
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$form['link_to_node_revision'] = array(
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'#title' => t('Link this field to its content revision'),
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'#description' => t('This will override any other link you have set.'),
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'#type' => 'checkbox',
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'#default_value' => !empty($this->options['link_to_node_revision']),
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);
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parent::options_form($form, $form_state);
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}
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/**
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* Render whatever the data is as a link to the node.
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*
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* Data should be made XSS safe prior to calling this function.
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*/
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public function render_link($data, $values) {
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if (!empty($this->options['link_to_node_revision']) && $data !== NULL && $data !== '') {
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$this->options['alter']['make_link'] = TRUE;
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$nid = $this->get_value($values, 'nid');
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$vid = $this->get_value($values, 'vid');
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$this->options['alter']['path'] = 'node/' . $nid;
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if ($nid != $vid) {
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$this->options['alter']['path'] .= "/revisions/$vid/view";
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}
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if (module_exists('translation')) {
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$language = $this->get_value($values, 'language');
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$languages = language_list();
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if (isset($languages[$language])) {
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$this->options['alter']['language'] = $languages[$language];
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}
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}
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}
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else {
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return parent::render_link($data, $values);
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}
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return $data;
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}
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}
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