'.t("Provides an easy to use control for adding multiple items.").'';
break;
}
return $output;
}
/**
* Implementation of hook_perm
* @todo Need to check permissions make sense
*/
function multiselect_perm()
{
return array('access multiselect_module'); //?
}
/**
* Implementation of hook_widget_info.
* Specifies the label and that it is a widget for the nodereference field type
*/
function multiselect_widget_info()
{
return array(
'multiselect_select' => array(
'label' => 'Multiselect List',
'field types' => array('nodereference'),
),
);
}
/**
* Implementation of hook_widget
* @todo Temporary 'print_r's need removing
* @todo Is the if ($field['widget']['type'] == 'multiselect_select' necessary?
* @todo Doesn't seem to populate list when in 'preview'
*/
function multiselect_widget($op, &$node, $field, &$node_field)
{
print_r("op = $op. field['widget']['type'] = ".$field['widget']['type']." \n");
//necessary to get list of nodes that can be included in this nodereference
include_once(drupal_get_path('module', 'content').'/nodereference.module');
if ($field['widget']['type'] == 'multiselect_select')
{
switch ($op) {
case 'prepare form values':
//puts node_field (original) values into a temporary bit of the array called default nids
$node_field_transposed = content_transpose_array_rows_cols($node_field);
$node_field['default nids'] = $node_field_transposed['nid'];
break;
case 'form':
//generates form object
$form = array();
$selectedoptions = array();
$notselectedoptions = array();
//gets list of all nodes we can reference
$options = _nodereference_potential_references($field, true);
//for each node, check if it's already selected. If it is, add it to the selected list
foreach ($options as $key => $value) {
$inarray = FALSE;
if (is_array($node_field['default nids']))
{
foreach($node_field['default nids'] as $n => $nid)
{
if ($nid == $key)
{
$inarray = TRUE;
}
}
}
if ($inarray)
{
$selectedoptions[$key] = _nodereference_item($field, $value);
}
else
{
$notselectedoptions[$key] = _nodereference_item($field, $value);
}
}
//useful variables
$fieldname=$field['field_name'];
$addbutton=$fieldname."_add";
$removebutton=$fieldname."_remove";
$selfield=$fieldname."_sel";
$unselfield=$fieldname."_unsel";
//call methods to create prefix (ie the non-selected table, etc)
$prefix = "
\n",
'#multiple' => TRUE,
'#attributes' => array('class' => "$selfield multiselect_sel", 'id' => $fieldname),
'#default_value' => $node_field['default nids'],
);
//return the form array
return $form;
case 'process form values':
//Replace the node values
$node_field = content_transpose_array_rows_cols(array('nid' => $node_field['nids']));
break;
case 'submit':
break;
}
}
}
/**
* Provides html to display the buttons on the form
* @todo could I do this by putting items in the form array? (or would that be too complicated?)
*/
function _html_for_buttons($fieldname)
{
$addremovebuttons = "\n $name)
{
$boxhtml.="";
}
$boxhtml.= "\n";
$boxhtml.= "\n";
return $boxhtml;
}
/**
* Implementation of hook_nodeapi.
* @todo The adding of javascript can be moved to the _widget function.
*/
function multiselect_nodeapi(&$node, $op, $teaser, $page)
{
switch ($op)
{
case 'prepare':
$path = drupal_get_path('module','multiselect');
drupal_add_js($path . '/multiselect.js');
}
}
?>