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MDL-55356 core_search: API to queue contexts for indexing

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New API \core_search\manager::request_index($context, $areaid = '')
adds the given context to a list which is intended to be indexed
later by the scheduled task.
This commit is contained in:
sam marshall
2017-10-11 17:17:07 +01:00
parent d761b3fb19
commit eacb2bd11b
5 changed files with 157 additions and 1 deletions
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search/classes/manager.php
+38
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@@ -637,6 +637,8 @@ class manager {
* @return bool Whether there was any updated document or not.
*/
public function index($fullindex = false, $timelimit = 0, \progress_trace $progress = null) {
global $DB;
// Cannot combine time limit with reindex.
if ($timelimit && $fullindex) {
throw new \coding_exception('Cannot apply time limit when reindexing');
@@ -687,6 +689,10 @@ class manager {
if ($fullindex === true) {
$referencestarttime = 0;
// For full index, we delete any queued context index requests, as those will
// obviously be met by the full index.
$DB->delete_records('search_index_requests');
} else {
$partial = get_config($componentconfigname, $varname . '_partial');
if ($partial) {
@@ -905,4 +911,36 @@ class manager {
return false;
}
/**
* Requests that a specific context is indexed by the scheduled task. The context will be
* added to a queue which is processed by the task.
*
* This is used after a restore to ensure that restored items are indexed, even though their
* modified time will be older than the latest indexed.
*
* @param \context $context Context to index within
* @param string $areaid Area to index, '' = all areas
*/
public static function request_index(\context $context, $areaid = '') {
global $DB;
// Check through existing requests for this context or any parent context.
list ($contextsql, $contextparams) = $DB->get_in_or_equal(
$context->get_parent_context_ids(true));
$existing = $DB->get_records_select('search_index_requests',
'contextid ' . $contextsql, $contextparams, '', 'id, searcharea, partialarea');
foreach ($existing as $rec) {
// If we haven't started processing the existing request yet, and it covers the same
// area (or all areas) then that will be sufficient so don't add anything else.
if ($rec->partialarea === '' && ($rec->searcharea === $areaid || $rec->searcharea === '')) {
return;
}
}
// No suitable existing request, so add a new one.
$newrecord = [ 'contextid' => $context->id, 'searcharea' => $areaid,
'timerequested' => time(), 'partialarea' => '', 'partialtime' => 0 ];
$DB->insert_record('search_index_requests', $newrecord);
}
}