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