Search hook for filtering results? - drupal

Question

I have been going through the docs and source code looking for something without luck.
Is there a Drupal 6 hook that gets called after hook_search(), but before the $results gets handed off to the template system?
I need to do a fairly custom pruning and reordering of results that get returned. I could just reimplement hook_search(), but this seems like overkill.
Thanks.

Answer 1

There isn't; search_view() (which displays the results) calls search_data(), which invokes hook_search() then immediately themes the results. Re-implementing hook_search() is probably the most straightforward route.
With that said, you could instead implement hook_menu_alter() and have the search page call your custom function instead of calling search_view() (and subsequently calling search_data()). Something like:
function test_menu_alter(&$items) {
$items['search']['page callback'] = 'test_search_view';
foreach (module_implements('search') as $name) {
$items['search/' . $name . '/%menu_tail']['page callback'] = 'test_search_view';
}
}
// Note: identical to search_view except for --- CHANGED ---
function test_search_view($type = 'node') {
// Search form submits with POST but redirects to GET. This way we can keep
// the search query URL clean as a whistle:
// search/type/keyword+keyword
if (!isset($_POST['form_id'])) {
if ($type == '') {
// Note: search/node can not be a default tab because it would take on the
// path of its parent (search). It would prevent remembering keywords when
// switching tabs. This is why we drupal_goto to it from the parent instead.
drupal_goto('search/node');
}
$keys = search_get_keys();
// Only perform search if there is non-whitespace search term:
$results = '';
if (trim($keys)) {
// Log the search keys:
watchdog('search', '%keys (#type).', array('%keys' => $keys, '#type' => module_invoke($type, 'search', 'name')), WATCHDOG_NOTICE, l(t('results'), 'search/'. $type .'/'. $keys));
// Collect the search results:
// --- CHANGED ---
// $results = search_data($keys, $type);
// Instead of using search_data, use our own function
$results = test_search_data($keys, $type);
// --- END CHANGED ---
if ($results) {
$results = theme('box', t('Search results'), $results);
}
else {
$results = theme('box', t('Your search yielded no results'), search_help('search#noresults', drupal_help_arg()));
}
}
// Construct the search form.
$output = drupal_get_form('search_form', NULL, $keys, $type);
$output .= $results;
return $output;
}
return drupal_get_form('search_form', NULL, empty($keys) ? '' : $keys, $type);
}
// Note: identical to search_data() except for --- CHANGED ---
function test_search_data($keys = NULL, $type = 'node') {
if (isset($keys)) {
if (module_hook($type, 'search')) {
$results = module_invoke($type, 'search', 'search', $keys);
if (isset($results) && is_array($results) && count($results)) {
// --- CHANGED ---
// This dsm() is called immediately after hook_search() but before
// the results get themed. Put your code here.
dsm($results);
// --- END CHANGED ---
if (module_hook($type, 'search_page')) {
return module_invoke($type, 'search_page', $results);
}
else {
return theme('search_results', $results, $type);
}
}
}
}
}

Answer 2

You can use hook_search_page() to reorder or format the search result.

Answer 3

Hook search_execute allows you to modify the query in the way you needed. You can even fire new queries with custom sql, for example:
function mymodule_search_execute($keys = NULL, $conditions = NULL) {
// Do some query here.
$result = my_fancy_query();
// Results in a Drupal themed way for search.
$results[] = array(
'link' => (string) $result->U,
'title' => $title,
'snippet' => $snippet,
'keys' => check_plain($keys),
'extra' => array($extra),
'date' => NULL,
);