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<?php
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/**
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* @file
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* Definition of views_handler_field_taxonomy.
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*/
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/**
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* Field handler to provide simple renderer that allows linking to a taxonomy
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* term.
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*
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* @ingroup views_field_handlers
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*/
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class views_handler_field_taxonomy extends views_handler_field {
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/**
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* Constructor to provide additional field to add.
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*
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* This constructer assumes the taxonomy_term_data table. If using another
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* table, we'll need to be more specific.
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*/
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public function construct() {
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parent::construct();
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$this->additional_fields['vid'] = 'vid';
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$this->additional_fields['tid'] = 'tid';
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$this->additional_fields['name'] = 'name';
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$this->additional_fields['vocabulary_machine_name'] = array(
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'table' => 'taxonomy_vocabulary',
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'field' => 'machine_name',
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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_taxonomy'] = array('default' => FALSE, 'bool' => TRUE);
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$options['convert_spaces'] = array('default' => FALSE, 'bool' => TRUE);
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return $options;
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}
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/**
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* Provide link to taxonomy option.
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*/
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public function options_form(&$form, &$form_state) {
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$form['link_to_taxonomy'] = array(
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'#title' => t('Link this field to its taxonomy term page'),
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'#description' => t("Enable to override this field's links."),
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'#type' => 'checkbox',
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'#default_value' => !empty($this->options['link_to_taxonomy']),
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);
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$form['convert_spaces'] = array(
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'#title' => t('Convert spaces in term names to hyphens'),
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'#description' => t('This allows links to work with Views taxonomy term arguments.'),
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'#type' => 'checkbox',
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'#default_value' => !empty($this->options['convert_spaces']),
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);
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parent::options_form($form, $form_state);
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}
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/**
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* Render whatever the data is as a link to the taxonomy.
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*
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* Data should be made XSS safe prior to calling this function.
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*/
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public function render_link($data, $values) {
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$tid = $this->get_value($values, 'tid');
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if (!empty($this->options['link_to_taxonomy']) && !empty($tid) && $data !== NULL && $data !== '') {
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$term = new stdClass();
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$term->tid = $tid;
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$term->vid = $this->get_value($values, 'vid');
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$term->name = $this->get_value($values, 'name');
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$term->vocabulary_machine_name = $values->{$this->aliases['vocabulary_machine_name']};
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$this->options['alter']['make_link'] = TRUE;
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$uri = entity_uri('taxonomy_term', $term);
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if (isset($uri['options'])) {
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$this->options['alter'] = array_merge($this->options['alter'], $uri['options']);
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}
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$this->options['alter']['path'] = $uri['path'];
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// If entity_uri() returned an options array, use it.
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if (isset($uri['options'])) {
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$this->options['alter'] = $uri['options'] + $this->options['alter'];
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}
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}
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if (!empty($this->options['convert_spaces'])) {
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$data = str_replace(' ', '-', $data);
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}
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return $data;
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}
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/**
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* {@inheritdoc}
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*/
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public function render($values) {
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$value = $this->get_value($values);
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return $this->render_link($this->sanitize_value($value), $values);
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}
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}
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