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<?php
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/**
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* @file
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*
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* Plugin to provide a node context. A node context is a node wrapped in a
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* context object that can be utilized by anything that accepts contexts.
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*/
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/**
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* Plugins are described by creating a $plugin array which will be used
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* by the system that includes this file.
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*/
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$plugin = array(
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'title' => t("Node"),
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'description' => t('A node object.'),
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'context' => 'ctools_context_create_node',
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'edit form' => 'ctools_context_node_settings_form',
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'defaults' => array('nid' => ''),
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'keyword' => 'node',
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'context name' => 'node',
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'convert list' => 'ctools_context_node_convert_list',
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'convert' => 'ctools_context_node_convert',
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'placeholder form' => array(
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'#type' => 'textfield',
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'#description' => t('Enter the node ID of a node for this context.'),
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),
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// This context is deprecated and should not be usable in the UI.
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'no ui' => TRUE,
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'no required context ui' => TRUE,
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'superceded by' => 'entity:node',
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);
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/**
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* It's important to remember that $conf is optional here, because contexts
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* are not always created from the UI.
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*/
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function ctools_context_create_node($empty, $data = NULL, $conf = FALSE) {
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$context = new ctools_context('node');
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$context->plugin = 'node';
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if ($empty) {
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return $context;
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}
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if ($conf) {
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$nid = is_array($data) && isset($data['nid']) ? $data['nid'] : (is_object($data) ? $data->nid : 0);
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if (module_exists('translation')) {
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if ($translation = module_invoke('translation', 'node_nid', $nid, $GLOBALS['language']->language)) {
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$nid = $translation;
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$reload = TRUE;
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}
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}
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if (is_array($data) || !empty($reload)) {
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$data = node_load($nid);
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}
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}
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if (!empty($data)) {
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$context->data = $data;
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$context->title = $data->title;
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$context->argument = $data->nid;
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$context->restrictions['type'] = array($data->type);
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return $context;
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}
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}
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function ctools_context_node_settings_form($form, &$form_state) {
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$conf = &$form_state['conf'];
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$form['node'] = array(
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'#title' => t('Enter the title or NID of a node'),
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'#type' => 'textfield',
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'#maxlength' => 512,
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'#autocomplete_path' => 'ctools/autocomplete/node',
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'#weight' => -10,
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);
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if (!empty($conf['nid'])) {
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$info = db_query('SELECT * FROM {node} WHERE nid = :nid', array(':nid' => $conf['nid']))->fetchObject();
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if ($info) {
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$link = l(t("'%title' [node id %nid]", array('%title' => $info->title, '%nid' => $info->nid)), "node/$info->nid", array('attributes' => array('target' => '_blank', 'title' => t('Open in new window')), 'html' => TRUE));
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$form['node']['#description'] = t('Currently set to !link', array('!link' => $link));
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}
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}
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$form['nid'] = array(
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'#type' => 'value',
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'#value' => $conf['nid'],
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);
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$form['set_identifier'] = array(
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'#type' => 'checkbox',
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'#default_value' => FALSE,
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'#title' => t('Reset identifier to node title'),
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'#description' => t('If checked, the identifier will be reset to the node title of the selected node.'),
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);
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return $form;
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}
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/**
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* Validate a node.
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*/
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function ctools_context_node_settings_form_validate($form, &$form_state) {
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// Validate the autocomplete
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if (empty($form_state['values']['nid']) && empty($form_state['values']['node'])) {
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form_error($form['node'], t('You must select a node.'));
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return;
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}
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if (empty($form_state['values']['node'])) {
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return;
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}
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$nid = $form_state['values']['node'];
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$preg_matches = array();
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$match = preg_match('/\[id: (\d+)\]/', $nid, $preg_matches);
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if (!$match) {
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$match = preg_match('/^id: (\d+)/', $nid, $preg_matches);
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}
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if ($match) {
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$nid = $preg_matches[1];
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}
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if (is_numeric($nid)) {
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$node = db_query('SELECT nid, status FROM {node} WHERE nid = :nid', array(':nid' => $nid))->fetchObject();
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}
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else {
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$node = db_query('SELECT nid, status FROM {node} WHERE LOWER(title) = LOWER(:title)', array(':title' => $nid))->fetchObject();
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}
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// Do not allow unpublished nodes to be selected by unprivileged users
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if (!$node || (empty($node->status) && !(user_access('administer nodes')))) {
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form_error($form['node'], t('Invalid node selected.'));
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}
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else {
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form_set_value($form['nid'], $node->nid, $form_state);
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}
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}
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function ctools_context_node_settings_form_submit($form, &$form_state) {
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if ($form_state['values']['set_identifier']) {
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$node = node_load($form_state['values']['nid']);
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$form_state['values']['identifier'] = $node->title;
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}
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// This will either be the value set previously or a value set by the
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// validator.
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$form_state['conf']['nid'] = $form_state['values']['nid'];
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}
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/**
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* Provide a list of ways that this context can be converted to a string.
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*/
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function ctools_context_node_convert_list() {
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$tokens = token_info();
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foreach ($tokens['tokens']['node'] as $id => $info) {
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if (!isset($list[$id])) {
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$list[$id] = $info['name'];
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}
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}
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return $list;
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}
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/**
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* Convert a context into a string.
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*/
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function ctools_context_node_convert($context, $type) {
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$tokens = token_info();
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if (isset($tokens['tokens']['node'][$type])) {
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$values = token_generate('node', array($type => $type), array('node' => $context->data));
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if (isset($values[$type])) {
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return $values[$type];
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}
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}
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}
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