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- <?php
- /**
- * @file
- * Plugin to provide an relationship handler for node from view.
- */
- /**
- * Plugins are described by creating a $plugin array which will be used
- * by the system that includes this file.
- */
- $plugin = array(
- 'title' => t('Node from view'),
- 'keyword' => 'node',
- 'description' => t('Extract a node context from a view context of the base type node.'),
- 'required context' => new ctools_context_required(t('View'), 'view', array('base' => 'node')),
- 'context' => 'views_content_node_from_view_context',
- 'edit form' => 'views_content_node_from_view_settings_form',
- 'edit form validate' => 'views_content_node_from_view_settings_form_validate',
- 'defaults' => array('row' => 1),
- );
- /**
- * Return a new context based on an existing context.
- */
- function views_content_node_from_view_context($context, $conf, $placeholder = FALSE) {
- // If unset it wants a generic, unfilled context, which is just NULL.
- if (empty($context->data) || $placeholder) {
- return ctools_context_create_empty('node', NULL);
- }
- $view = views_content_context_get_view($context);
- // Ensure the view executes, but we don't need its output.
- views_content_context_get_output($context);
- $row = intval($conf['row']) - 1;
- if (isset($view->result[$row]) && isset($view->base_field) && isset($view->result[$row]->{$view->base_field})) {
- $nid = $view->result[$row]->{$view->base_field};
- if ($nid) {
- $node = node_load($nid);
- return ctools_context_create('node', $node);
- }
- }
- return ctools_context_create_empty('node', NULL);
- }
- /**
- * Settings form for the relationship.
- */
- function views_content_node_from_view_settings_form($form, &$form_state) {
- $conf = $form_state['conf'];
- $form['row'] = array(
- '#title' => t('Row number'),
- '#type' => 'textfield',
- '#default_value' => $conf['row'],
- );
- return $form;
- }
- function views_content_node_from_view_settings_form_validate($form, &$form_state) {
- if (intval($form_state['values']['row']) <= 0) {
- form_error($form['row'], t('Row number must be a positive integer value.'));
- }
- }
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