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<?php
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/**
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* @file
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* Definition of views_handler_sort.
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*/
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/**
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* @defgroup views_sort_handlers Views sort handlers
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* @{
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* Handlers to tell Views how to sort queries.
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*/
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/**
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* Base sort handler that has no options and performs a simple sort.
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*
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* @ingroup views_sort_handlers
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*/
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class views_handler_sort extends views_handler {
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/**
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* Determine if a sort can be exposed.
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*/
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public function can_expose() {
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return TRUE;
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}
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/**
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* Called to add the sort to a query.
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*/
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public function query() {
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$this->ensure_my_table();
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// Add the field.
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$this->query->add_orderby($this->table_alias, $this->real_field, $this->options['order']);
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}
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/**
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* {@inheritdoc}
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*/
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public function option_definition() {
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$options = parent::option_definition();
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$options['order'] = array('default' => 'ASC');
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$options['exposed'] = array('default' => FALSE, 'bool' => TRUE);
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$options['expose'] = array(
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'contains' => array(
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'label' => array('default' => '', 'translatable' => TRUE),
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),
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);
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return $options;
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}
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/**
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* Display whether or not the sort order is ascending or descending
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*/
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public function admin_summary() {
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if (!empty($this->options['exposed'])) {
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return t('Exposed');
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}
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switch ($this->options['order']) {
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case 'ASC':
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case 'asc':
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default:
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return t('asc');
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case 'DESC';
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case 'desc';
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return t('desc');
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}
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}
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/**
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* Basic options for all sort criteria
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*/
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public function options_form(&$form, &$form_state) {
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parent::options_form($form, $form_state);
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if ($this->can_expose()) {
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$this->show_expose_button($form, $form_state);
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}
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$form['op_val_start'] = array('#value' => '<div class="clearfix">');
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$this->show_sort_form($form, $form_state);
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$form['op_val_end'] = array('#value' => '</div>');
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if ($this->can_expose()) {
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$this->show_expose_form($form, $form_state);
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}
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}
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/**
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* Shortcut to display the expose/hide button.
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*/
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public function show_expose_button(&$form, &$form_state) {
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$form['expose_button'] = array(
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'#prefix' => '<div class="views-expose clearfix">',
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'#suffix' => '</div>',
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// Should always come first.
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'#weight' => -1000,
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);
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// Add a checkbox for JS users, which will have behavior attached to it
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// so it can replace the button.
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$form['expose_button']['checkbox'] = array(
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'#theme_wrappers' => array('container'),
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'#attributes' => array('class' => array('js-only')),
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);
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$form['expose_button']['checkbox']['checkbox'] = array(
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'#title' => t('Expose this sort to visitors, to allow them to change it'),
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'#type' => 'checkbox',
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);
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// Then add the button itself.
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if (empty($this->options['exposed'])) {
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$form['expose_button']['markup'] = array(
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'#markup' => '<div class="description exposed-description" style="float: left; margin-right:10px">' . t('This sort is not exposed. Expose it to allow the users to change it.') . '</div>',
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);
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$form['expose_button']['button'] = array(
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'#limit_validation_errors' => array(),
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'#type' => 'submit',
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'#value' => t('Expose sort'),
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'#submit' => array('views_ui_config_item_form_expose'),
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);
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$form['expose_button']['checkbox']['checkbox']['#default_value'] = 0;
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}
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else {
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$form['expose_button']['markup'] = array(
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'#markup' => '<div class="description exposed-description">' . t('This sort is exposed. If you hide it, users will not be able to change it.') . '</div>',
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);
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$form['expose_button']['button'] = array(
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'#limit_validation_errors' => array(),
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'#type' => 'submit',
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'#value' => t('Hide sort'),
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'#submit' => array('views_ui_config_item_form_expose'),
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);
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$form['expose_button']['checkbox']['checkbox']['#default_value'] = 1;
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}
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}
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/**
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* Simple validate handler.
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*/
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public function options_validate(&$form, &$form_state) {
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$this->sort_validate($form, $form_state);
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if (!empty($this->options['exposed'])) {
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$this->expose_validate($form, $form_state);
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}
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}
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/**
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* Simple submit handler.
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*/
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public function options_submit(&$form, &$form_state) {
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// Don't store this.
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unset($form_state['values']['expose_button']);
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$this->sort_submit($form, $form_state);
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if (!empty($this->options['exposed'])) {
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$this->expose_submit($form, $form_state);
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}
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}
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/**
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* Shortcut to display the value form.
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*/
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public function show_sort_form(&$form, &$form_state) {
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$options = $this->sort_options();
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if (!empty($options)) {
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$form['order'] = array(
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'#type' => 'radios',
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'#options' => $options,
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'#default_value' => $this->options['order'],
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);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function sort_validate(&$form, &$form_state) {
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}
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/**
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* {@inheritdoc}
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*/
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public function sort_submit(&$form, &$form_state) {
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}
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/**
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* Provide a list of options for the default sort form.
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*
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* Should be overridden by classes that don't override sort_form.
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*/
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public function sort_options() {
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return array(
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'ASC' => t('Sort ascending'),
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'DESC' => t('Sort descending'),
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);
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}
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/**
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* {@inheritdoc}
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*/
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public function expose_form(&$form, &$form_state) {
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// #flatten will move everything from $form['expose'][$key] to $form[$key]
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// prior to rendering. That's why the pre_render for it needs to run first,
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// so that when the next pre_render (the one for fieldsets) runs, it gets
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// the flattened data.
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array_unshift($form['#pre_render'], 'views_ui_pre_render_flatten_data');
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$form['expose']['#flatten'] = TRUE;
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$form['expose']['label'] = array(
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'#type' => 'textfield',
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'#default_value' => $this->options['expose']['label'],
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'#title' => t('Label'),
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'#required' => TRUE,
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'#size' => 40,
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'#weight' => -1,
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);
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}
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/**
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* Provide default options for exposed sorts.
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*/
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public function expose_options() {
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$this->options['expose'] = array(
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'order' => $this->options['order'],
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'label' => $this->definition['title'],
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);
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}
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}
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/**
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* A special handler to take the place of missing or broken handlers.
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*
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* @ingroup views_sort_handlers
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*/
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class views_handler_sort_broken extends views_handler_sort {
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/**
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* {@inheritdoc}
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*/
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public function ui_name($short = FALSE) {
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return t('Broken/missing handler');
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}
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/**
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* {@inheritdoc}
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*/
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public function ensure_my_table() {
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// No table to ensure!
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}
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/**
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* {@inheritdoc}
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*/
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public function query($group_by = FALSE) {
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// No query to run.
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}
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/**
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* {@inheritdoc}
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*/
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public function options_form(&$form, &$form_state) {
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$form['markup'] = array(
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'#markup' => '<div class="form-item description">' . t('The handler for this item is broken or missing and cannot be used. If a module provided the handler and was disabled, re-enabling the module may restore it. Otherwise, you should probably delete this item.') . '</div>',
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);
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}
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/**
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* Determine if the handler is considered 'broken'.
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*/
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public function broken() {
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return TRUE;
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}
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}
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/**
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* @}
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*/
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