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