rid.inc
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<?php
/**
* @file
*
* Plugin to provide an argument handler for a node revision id
*/
/**
* Plugins are described by creating a $plugin array which will be used
* by the system that includes this file.
*/
$plugin = array(
'title' => t("Revision: ID"),
'keyword' => 'revision',
'description' => t('Creates a node context from a revision ID argument.'),
'context' => 'ctools_argument_rid_context',
'placeholder form' => array(
'#type' => 'textfield',
'#description' => t('Enter the revision ID of a node for this argument'),
),
);
/**
* Discover if this argument gives us the node we crave.
*/
function ctools_argument_rid_context($arg = NULL, $conf = NULL, $empty = FALSE) {
// If unset it wants a generic, unfilled context.
if ($empty) {
return ctools_context_create_empty('node');
}
// We can accept either a node object or a pure nid.
if (is_object($arg)) {
return ctools_context_create('node', $arg);
}
if (!is_numeric($arg)) {
return FALSE;
}
$nid = db_query('SELECT nid FROM {node_revision} WHERE vid = :vid', array(':vid' => $arg))->fetchField();
$node = node_load($nid, $arg);
if (!$node) {
return FALSE;
}
return ctools_context_create('node', $node);
}