Exclude one CCK from drupal search

To exclude one cck in drupal search please follow as in the given steps.

1.Add this into hook_form in your custom module

case 'search_form':
$excluded_types = variable_get('search_excluded_node_types', array());
$types = array_map('check_plain', node_get_types('names'));
foreach($excluded_types as $excluded_type) {
unset($types[$excluded_type]);
}
$form['advanced']['type']['#options'] = $types;
$form['basic']['inline']['keys']['#prefix'] = '<div id="pref">';
$form['basic']['inline']['keys']['#suffix'] = '</div>';
// echopre($form['basic']['inline']);
break;



2.Add this in to hook_search in your custom module

function <modulename>_search($op = 'search') {

if ('admin' == $op) {
$form = array();
$form['search_excluded_node_types'] = array(
'#type' => 'select',
'#multiple' => TRUE,
'#title' => t('Excluded Node Types'),
'#default_value' => variable_get('search_excluded_node_types', array()),
'#options' => node_get_types('names'),
'#size' => 9,
'#description' => t('Node types to exclude from search results.'),
);
return $form;
}
}

3.Add this in to hook_db_rewrite_sql in your custom module

function <modulename>_db_rewrite_sql($query, $primary_table, $primary_field, $args) {
if ($query == '' && $primary_table == 'n' && $primary_field = 'nid' && empty($args)) {
$excluded_types = variable_get('search_excluded_node_types', array());
if (!empty($excluded_types)) {
$where = " n.type NOT IN ('". join("','", $excluded_types) ."') ";
return array('where' => $where);
}
}
}


Note : This is for Drupal 5.x

R.Navaneethakrishnan.