69 lines
1.7 KiB
PHP
69 lines
1.7 KiB
PHP
<?php
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/**
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* @file
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* Plugin to provide an relationship handler for book parent.
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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('Book parent'),
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'keyword' => 'book_parent',
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'description' => t('Adds a book parent from a node context.'),
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'required context' => new ctools_context_required(t('Node'), 'node'),
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'context' => 'ctools_book_parent_context',
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'edit form' => 'ctools_book_parent_settings_form',
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'defaults' => array('type' => 'top'),
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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 ctools_book_parent_context($context, $conf) {
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// If unset it wants a generic, unfilled context, which is just NULL.
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if (empty($context->data)) {
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return ctools_context_create_empty('node');
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}
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if (isset($context->data->book)) {
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if ($conf['type'] == 'top') {
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$nid = $context->data->book['bid'];
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}
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else {
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// Just load the parent book.
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$item = book_link_load($context->data->book['plid']);
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$nid = $item['nid'];
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}
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if (!empty($nid)) {
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// Load the node.
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$node = node_load($nid);
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// Generate the context.
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if (node_access('view', $node)) {
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return ctools_context_create('node', $node);
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}
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}
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}
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else {
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return ctools_context_create_empty('node');
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}
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}
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/**
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* Settings form for the relationship.
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*/
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function ctools_book_parent_settings_form($form, &$form_state) {
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$conf = $form_state['conf'];
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$form['type'] = array(
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'#type' => 'select',
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'#title' => t('Relationship type'),
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'#options' => array('parent' => t('Immediate parent'), 'top' => t('Top level book')),
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'#default_value' => $conf['type'],
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);
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return $form;
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}
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