silverstripe-fulltextsearch/code/search/SearchVariantSubsites.php

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<?php
class SearchVariantSubsites extends SearchVariant {
function appliesToEnvironment() {
return class_exists('Subsite');
}
function appliesTo($class, $includeSubclasses) {
// Include all DataExtensions that contain a SubsiteID.
// TODO: refactor subsites to inherit a common interface, so we can run introspection once only.
return SearchIntrospection::has_extension($class, 'SiteTreeSubsites', $includeSubclasses) ||
SearchIntrospection::has_extension($class, 'GroupSubsites', $includeSubclasses) ||
SearchIntrospection::has_extension($class, 'FileSubsites', $includeSubclasses) ||
SearchIntrospection::has_extension($class, 'SiteConfigSubsites', $includeSubclasses);
}
function currentState() {
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return (string)Subsite::currentSubsiteID();
}
function reindexStates() {
static $ids = null;
if ($ids === null) {
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$ids = array('0');
foreach (DataObject::get('Subsite') as $subsite) $ids[] = (string)$subsite->ID;
}
return $ids;
}
function activateState($state) {
// We always just set the $_GET variable rather than store in Session - this always works, has highest priority
// in Subsite::currentSubsiteID() and doesn't persist unlike Subsite::changeSubsite
$_GET['SubsiteID'] = $state;
Permission::flush_permission_cache();
}
function alterDefinition($base, $index) {
$self = get_class($this);
$index->filterFields['_subsite'] = array(
'name' => '_subsite',
'field' => '_subsite',
'fullfield' => '_subsite',
'base' => $base,
'origin' => $base,
'type' => 'Int',
'lookup_chain' => array(array('call' => 'variant', 'variant' => $self, 'method' => 'currentState'))
);
}
function alterQuery($query, $index) {
$subsite = Subsite::currentSubsiteID();
$query->filter('_subsite', array($subsite, SearchQuery::$missing));
}
static $subsites = null;
/**
* We need _really_ complicated logic to find just the changed subsites (because we use versions there's no explicit
* deletes, just new versions with different members) so just always use all of them
*/
function extractManipulationWriteState(&$writes) {
$self = get_class($this);
foreach ($writes as $key => $write) {
if (!$this->appliesTo($write['class'], true)) continue;
if (self::$subsites === null) {
$query = new SQLQuery('"ID"', '"Subsite"');
self::$subsites = array_merge(array('0'), $query->execute()->column());
}
$next = array();
foreach ($write['statefulids'] as $i => $statefulid) {
foreach (self::$subsites as $subsiteID) {
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$next[] = array('id' => $statefulid['id'], 'state' => array_merge($statefulid['state'], array($self => (string)$subsiteID)));
}
}
$writes[$key]['statefulids'] = $next;
}
}
}