book_parent.inc
1.73 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
<?php
/**
* @file
* Plugin to provide an relationship handler for book parent.
*/
/**
* Plugins are described by creating a $plugin array which will be used
* by the system that includes this file.
*/
$plugin = array(
'title' => t('Book parent'),
'keyword' => 'book_parent',
'description' => t('Adds a book parent from a node context.'),
'required context' => new ctools_context_required(t('Node'), 'node'),
'context' => 'ctools_book_parent_context',
'edit form' => 'ctools_book_parent_settings_form',
'defaults' => array('type' => 'top'),
);
/**
* Return a new context based on an existing context.
*/
function ctools_book_parent_context($context, $conf) {
// If unset it wants a generic, unfilled context, which is just NULL.
if (empty($context->data)) {
return ctools_context_create_empty('node');
}
if (isset($context->data->book)) {
if ($conf['type'] == 'top') {
$nid = $context->data->book['bid'];
}
else {
// Just load the parent book.
$item = book_link_load($context->data->book['plid']);
$nid = $item['nid'];
}
if (!empty($nid)) {
// Load the node.
$node = node_load($nid);
// Generate the context.
if (node_access('view', $node)) {
return ctools_context_create('node', $node);
}
}
}
else {
return ctools_context_create_empty('node');
}
}
/**
* Settings form for the relationship.
*/
function ctools_book_parent_settings_form($form, &$form_state) {
$conf = $form_state['conf'];
$form['type'] = array(
'#type' => 'select',
'#title' => t('Relationship type'),
'#options' => array('parent' => t('Immediate parent'), 'top' => t('Top level book')),
'#default_value' => $conf['type'],
);
return $form;
}