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<?php
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/**
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* @file
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* Definition of views_plugin_exposed_form.
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*/
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/**
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* @defgroup views_exposed_form_plugins Views exposed form plugins
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* @{
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* Plugins that handle the validation/submission and rendering of exposed forms.
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*
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* If needed, it is possible to use them to add additional form elements.
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*
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* @see hook_views_plugins()
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*/
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/**
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* The base plugin to handle exposed filter forms.
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*/
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class views_plugin_exposed_form extends views_plugin {
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/**
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* Initialize the plugin.
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*
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* @param $view
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* The view object.
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* @param $display
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* The display handler.
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*/
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function init(&$view, &$display, $options = array()) {
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$this->view = &$view;
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$this->display = &$display;
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$this->unpack_options($this->options, $options);
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}
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function option_definition() {
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$options = parent::option_definition();
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$options['submit_button'] = array('default' => 'Apply', 'translatable' => TRUE);
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$options['reset_button'] = array('default' => FALSE, 'bool' => TRUE);
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$options['reset_button_label'] = array('default' => 'Reset', 'translatable' => TRUE);
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$options['exposed_sorts_label'] = array('default' => 'Sort by', 'translatable' => TRUE);
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$options['expose_sort_order'] = array('default' => TRUE, 'bool' => TRUE);
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$options['sort_asc_label'] = array('default' => 'Asc', 'translatable' => TRUE);
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$options['sort_desc_label'] = array('default' => 'Desc', 'translatable' => TRUE);
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$options['autosubmit'] = array('default' => FALSE, 'bool' => TRUE);
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$options['autosubmit_hide'] = array('default' => TRUE, 'bool' => TRUE);
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return $options;
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}
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function options_form(&$form, &$form_state) {
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parent::options_form($form, $form_state);
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$form['submit_button'] = array(
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'#type' => 'textfield',
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'#title' => t('Submit button text'),
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'#description' => t('Text to display in the submit button of the exposed form.'),
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'#default_value' => $this->options['submit_button'],
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'#required' => TRUE,
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);
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$form['reset_button'] = array (
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'#type' => 'checkbox',
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'#title' => t('Include reset button'),
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'#description' => t('If checked the exposed form will provide a button to reset all the applied exposed filters'),
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'#default_value' => $this->options['reset_button'],
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);
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$form['reset_button_label'] = array(
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'#type' => 'textfield',
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'#title' => t('Reset button label'),
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'#description' => t('Text to display in the reset button of the exposed form.'),
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'#default_value' => $this->options['reset_button_label'],
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'#required' => TRUE,
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'#dependency' => array(
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'edit-exposed-form-options-reset-button' => array(1)
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),
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);
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$form['exposed_sorts_label'] = array(
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'#type' => 'textfield',
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'#title' => t('Exposed sorts label'),
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'#description' => t('Text to display as the label of the exposed sort select box.'),
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'#default_value' => $this->options['exposed_sorts_label'],
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'#required' => TRUE,
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);
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$form['expose_sort_order'] = array(
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'#type' => 'checkbox',
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'#title' => t('Expose sort order'),
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'#description' => t('Allow the user to choose the sort order. If sort order is not exposed, the sort criteria settings for each sort will determine its order.'),
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'#default_value' => $this->options['expose_sort_order'],
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);
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$form['sort_asc_label'] = array(
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'#type' => 'textfield',
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'#title' => t('Ascending'),
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'#description' => t('Text to use when exposed sort is ordered ascending.'),
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'#default_value' => $this->options['sort_asc_label'],
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'#required' => TRUE,
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'#dependency' => array('edit-exposed-form-options-expose-sort-order' => array(TRUE)),
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);
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$form['sort_desc_label'] = array(
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'#type' => 'textfield',
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'#title' => t('Descending'),
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'#description' => t('Text to use when exposed sort is ordered descending.'),
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'#default_value' => $this->options['sort_desc_label'],
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'#required' => TRUE,
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'#dependency' => array('edit-exposed-form-options-expose-sort-order' => array(TRUE)),
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);
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$form['autosubmit'] = array(
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'#type' => 'checkbox',
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'#title' => t('Autosubmit'),
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'#description' => t('Automatically submit the form once an element is changed.'),
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'#default_value' => $this->options['autosubmit'],
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);
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$form['autosubmit_hide'] = array(
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'#type' => 'checkbox',
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'#title' => t('Hide submit button'),
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'#description' => t('Hide submit button if javascript is enabled.'),
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'#default_value' => $this->options['autosubmit_hide'],
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'#dependency' => array(
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'edit-exposed-form-options-autosubmit' => array(1),
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),
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);
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}
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/**
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* Render the exposed filter form.
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*
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* This actually does more than that; because it's using FAPI, the form will
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* also assign data to the appropriate handlers for use in building the
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* query.
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*/
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function render_exposed_form($block = FALSE) {
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// Deal with any exposed filters we may have, before building.
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$form_state = array(
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'view' => &$this->view,
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'display' => &$this->display,
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'method' => 'get',
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'rerender' => TRUE,
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'no_redirect' => TRUE,
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'always_process' => TRUE,
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);
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// Some types of displays (eg. attachments) may wish to use the exposed
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// filters of their parent displays instead of showing an additional
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// exposed filter form for the attachment as well as that for the parent.
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if (!$this->view->display_handler->displays_exposed() || (!$block && $this->view->display_handler->get_option('exposed_block'))) {
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unset($form_state['rerender']);
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}
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if (!empty($this->ajax)) {
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$form_state['ajax'] = TRUE;
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}
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$form_state['exposed_form_plugin'] = $this;
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$form = drupal_build_form('views_exposed_form', $form_state);
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$output = drupal_render($form);
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if (!$this->view->display_handler->displays_exposed() || (!$block && $this->view->display_handler->get_option('exposed_block'))) {
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return "";
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}
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else {
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return $output;
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}
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}
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function query() {
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$view = $this->view;
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$exposed_data = isset($view->exposed_data) ? $view->exposed_data : array();
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$sort_by = isset($exposed_data['sort_by']) ? $exposed_data['sort_by'] : NULL;
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if (!empty($sort_by) && $this->view->style_plugin->build_sort()) {
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// Make sure the original order of sorts is preserved
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// (e.g. a sticky sort is often first)
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if (isset($view->sort[$sort_by])) {
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$view->query->orderby = array();
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foreach ($view->sort as $key => $sort) {
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if (!$sort->is_exposed()) {
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$sort->query();
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}
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else if ($key == $sort_by) {
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if (isset($exposed_data['sort_order']) && in_array($exposed_data['sort_order'], array('ASC', 'DESC'))) {
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$sort->options['order'] = $exposed_data['sort_order'];
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}
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$sort->set_relationship();
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$sort->query();
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}
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}
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}
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}
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}
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function pre_render($values) { }
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function post_render(&$output) { }
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function pre_execute() { }
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function post_execute() { }
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function exposed_form_alter(&$form, &$form_state) {
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if (!empty($this->options['reset_button'])) {
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$form['reset'] = array(
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'#value' => $this->options['reset_button_label'],
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'#type' => 'submit',
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);
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}
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$form['submit']['#value'] = $this->options['submit_button'];
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// Check if there is exposed sorts for this view
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$exposed_sorts = array();
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foreach ($this->view->sort as $id => $handler) {
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if ($handler->can_expose() && $handler->is_exposed()) {
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$exposed_sorts[$id] = check_plain($handler->options['expose']['label']);
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}
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}
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if (count($exposed_sorts)) {
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$form['sort_by'] = array(
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'#type' => 'select',
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'#options' => $exposed_sorts,
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'#title' => $this->options['exposed_sorts_label'],
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);
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$sort_order = array(
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'ASC' => $this->options['sort_asc_label'],
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'DESC' => $this->options['sort_desc_label'],
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);
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if (isset($form_state['input']['sort_by']) && isset($this->view->sort[$form_state['input']['sort_by']])) {
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$default_sort_order = $this->view->sort[$form_state['input']['sort_by']]->options['order'];
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} else {
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$first_sort = reset($this->view->sort);
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$default_sort_order = $first_sort->options['order'];
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}
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if (!isset($form_state['input']['sort_by'])) {
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$keys = array_keys($exposed_sorts);
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$form_state['input']['sort_by'] = array_shift($keys);
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}
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if ($this->options['expose_sort_order']) {
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$form['sort_order'] = array(
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'#type' => 'select',
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'#options' => $sort_order,
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'#title' => t('Order'),
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'#default_value' => $default_sort_order,
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);
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}
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$form['submit']['#weight'] = 10;
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if (isset($form['reset'])) {
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$form['reset']['#weight'] = 10;
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}
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}
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$pager = $this->view->display_handler->get_plugin('pager');
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if ($pager) {
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$pager->exposed_form_alter($form, $form_state);
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$form_state['pager_plugin'] = $pager;
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}
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// Apply autosubmit values.
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if (!empty($this->options['autosubmit'])) {
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$form = array_merge_recursive($form, array('#attributes' => array('class' => array('ctools-auto-submit-full-form'))));
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$form['submit']['#attributes']['class'][] = 'ctools-use-ajax';
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$form['submit']['#attributes']['class'][] = 'ctools-auto-submit-click';
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$form['#attached']['js'][] = drupal_get_path('module', 'ctools') . '/js/auto-submit.js';
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if (!empty($this->options['autosubmit_hide'])) {
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$form['submit']['#attributes']['class'][] = 'js-hide';
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}
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}
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}
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function exposed_form_validate(&$form, &$form_state) {
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if (isset($form_state['pager_plugin'])) {
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$form_state['pager_plugin']->exposed_form_validate($form, $form_state);
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}
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}
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/**
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* This function is executed when exposed form is submited.
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*
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* @param $form
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* Nested array of form elements that comprise the form.
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* @param $form_state
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* A keyed array containing the current state of the form.
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* @param $exclude
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* Nested array of keys to exclude of insert into
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* $view->exposed_raw_input
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*/
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function exposed_form_submit(&$form, &$form_state, &$exclude) {
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if (!empty($form_state['values']['op']) && $form_state['values']['op'] == $this->options['reset_button_label']) {
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$this->reset_form($form, $form_state);
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}
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if (isset($form_state['pager_plugin'])) {
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$form_state['pager_plugin']->exposed_form_submit($form, $form_state, $exclude);
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$exclude[] = 'pager_plugin';
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}
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}
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function reset_form(&$form, &$form_state) {
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// _SESSION is not defined for users who are not logged in.
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// If filters are not overridden, store the 'remember' settings on the
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// default display. If they are, store them on this display. This way,
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// multiple displays in the same view can share the same filters and
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// remember settings.
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$display_id = ($this->view->display_handler->is_defaulted('filters')) ? 'default' : $this->view->current_display;
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if (isset($_SESSION['views'][$this->view->name][$display_id])) {
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unset($_SESSION['views'][$this->view->name][$display_id]);
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}
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// Set the form to allow redirect.
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if (empty($this->view->live_preview)) {
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$form_state['no_redirect'] = FALSE;
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}
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else {
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$form_state['rebuild'] = TRUE;
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$this->view->exposed_data = array();
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}
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$form_state['redirect'] = current_path();
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$form_state['values'] = array();
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}
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}
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/**
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* @}
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*/
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