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<?php
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/**
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* @file
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* Contains the entity_views_handler_field_options class.
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*/
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/**
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* A handler to provide proper displays for values chosen from a set of options.
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*
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* This handler may only be used in conjunction with data selection based Views
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* tables or other base tables using a query plugin that supports data
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* selection.
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*
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* @see entity_views_field_definition()
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* @ingroup views_field_handlers
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*/
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class entity_views_handler_field_options extends views_handler_field {
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/**
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* Stores the entity type of the result entities.
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*/
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public $entity_type;
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/**
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* Stores the result entities' metadata wrappers.
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*/
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public $wrappers = array();
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/**
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* Stores the current value when rendering list fields.
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*/
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public $current_value;
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/**
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* The key / name mapping for the options.
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*/
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public $option_list;
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/**
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* Overridden to add the field for the entity ID (if necessary).
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*/
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public function query() {
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EntityFieldHandlerHelper::query($this);
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}
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/**
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* Adds a click-sort to the query.
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*/
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public function click_sort($order) {
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EntityFieldHandlerHelper::click_sort($this, $order);
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}
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/**
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* Load the entities for all rows that are about to be displayed.
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*/
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public function pre_render(&$values) {
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parent::pre_render($values);
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EntityFieldHandlerHelper::pre_render($this, $values);
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}
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/**
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* Overridden to use a metadata wrapper.
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*/
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public function get_value($values, $field = NULL) {
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return EntityFieldHandlerHelper::get_value($this, $values, $field);
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}
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/**
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* Specifies the options this handler uses.
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*/
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public function option_definition() {
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$options = parent::option_definition();
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$options += EntityFieldHandlerHelper::option_definition($this);
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$options['format_name'] = array('default' => TRUE);
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return $options;
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}
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/**
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* Returns an option form for setting this handler's options.
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*/
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public function options_form(&$form, &$form_state) {
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parent::options_form($form, $form_state);
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EntityFieldHandlerHelper::options_form($this, $form, $form_state);
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$form['format_name'] = array(
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'#title' => t('Use human-readable name'),
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'#type' => 'checkbox',
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'#description' => t("If this is checked, the values' names will be displayed instead of their internal identifiers."),
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'#default_value' => $this->options['format_name'],
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'#weight' => -5,
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);
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}
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public function render($values) {
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return EntityFieldHandlerHelper::render($this, $values);
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}
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/**
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* Render a single field value.
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*/
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public function render_single_value($value, $values) {
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if (!isset($this->option_list)) {
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$this->option_list = array();
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$callback = $this->definition['options callback'];
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if (is_callable($callback['function'])) {
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// If a selector is used, get the name of the selected field.
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$field_name = EntityFieldHandlerHelper::get_selector_field_name($this->real_field);
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$this->option_list = call_user_func($callback['function'], $field_name, $callback['info'], 'view');
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}
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}
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if ($this->options['format_name'] && isset($this->option_list[$value])) {
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$value = $this->option_list[$value];
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}
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// Sanitization is handled by the wrapper, see
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// EntityFieldHandlerHelper::get_value().
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return $value;
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}
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}
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