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<?php |
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namespace SilverStripe\FullTextSearch\Search\Updaters; |
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use SilverStripe\Core\Config\Configurable; |
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use SilverStripe\Core\Injector\Injector; |
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use SilverStripe\Dev\SapphireTest; |
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use SilverStripe\ORM\Connect\Database; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\ORM\DB; |
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use SilverStripe\FullTextSearch\Search\FullTextSearch; |
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use SilverStripe\FullTextSearch\Search\SearchIntrospection; |
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use SilverStripe\FullTextSearch\Search\Variants\SearchVariant; |
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use SilverStripe\FullTextSearch\Search\Processors\SearchUpdateImmediateProcessor; |
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use ReflectionClass; |
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/** |
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* This class is responsible for capturing changes to DataObjects and triggering index updates of the resulting dirty |
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* index items. |
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* |
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* Attached automatically by Injector configuration that overloads your flavour of Database class. The |
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* SearchManipulateCapture_[type] classes overload the manipulate method - basically we need to capture a |
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* manipulation _after_ all the augmentManipulation code (for instance Version's) is run |
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* |
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* Pretty closely tied to the field structure of SearchIndex. |
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*/ |
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class SearchUpdater |
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{ |
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use Configurable; |
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/** |
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* Whether to register the shutdown function to flush. Can be disabled for example in unit testing. |
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* |
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* @config |
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* @var bool |
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*/ |
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private static $flush_on_shutdown = true; |
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public static $registered = false; |
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/** @var SearchUpdateProcessor */ |
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public static $processor = null; |
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/** |
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* Called by the SearchManiplateCapture database adapter with every manipulation made against the database. |
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* |
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* Check every index to see what objects need re-inserting into what indexes to keep the index fresh, |
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* but doesn't actually do it yet. |
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* |
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* TODO: This is pretty sensitive to the format of manipulation that DataObject::write produces. Specifically, |
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* it expects the actual class of the object to be present as a table, regardless of if any fields changed in that table |
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* (so a class => array( 'fields' => array() ) item), in order to find the actual class for a set of table manipulations |
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*/ |
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public static function handle_manipulation($manipulation) |
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{ |
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// First, extract any state that is in the manipulation itself |
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foreach ($manipulation as $table => $details) { |
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if (!isset($manipulation[$table]['class'])) { |
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$manipulation[$table]['class'] = DataObject::getSchema()->tableClass($table); |
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} |
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$manipulation[$table]['state'] = array(); |
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} |
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SearchVariant::call('extractManipulationState', $manipulation); |
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// Then combine the manipulation back into object field sets |
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$writes = array(); |
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foreach ($manipulation as $table => $details) { |
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if (!isset($details['id'])) { |
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continue; |
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} |
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$id = $details['id']; |
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$state = $details['state']; |
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$class = $details['class']; |
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$command = $details['command']; |
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$fields = isset($details['fields']) ? $details['fields'] : array(); |
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$base = DataObject::getSchema()->baseDataClass($class); |
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$key = "$id:$base:".serialize($state); |
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$statefulids = array(array('id' => $id, 'state' => $state)); |
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// Is this the first table for this particular object? Then add an item to $writes |
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if (!isset($writes[$key])) { |
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$writes[$key] = array( |
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'base' => $base, |
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'class' => $class, |
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'id' => $id, |
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'statefulids' => $statefulids, |
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'command' => $command, |
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'fields' => array() |
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); |
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} // Otherwise update the class label if it's more specific than the currently recorded one |
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elseif (is_subclass_of($class, $writes[$key]['class'])) { |
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$writes[$key]['class'] = $class; |
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} |
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// Update the fields |
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foreach ($fields as $field => $value) { |
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$writes[$key]['fields']["$class:$field"] = $value; |
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} |
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} |
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// Trim non-delete records without fields |
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foreach (array_keys($writes) as $key) { |
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if ($writes[$key]['command'] !== 'delete' && empty($writes[$key]['fields'])) { |
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unset($writes[$key]); |
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} |
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} |
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// Then extract any state that is needed for the writes |
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SearchVariant::call('extractManipulationWriteState', $writes); |
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// Submit all of these writes to the search processor |
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static::process_writes($writes); |
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} |
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/** |
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* Send updates to the current search processor for execution |
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* |
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* @param array $writes |
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*/ |
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public static function process_writes($writes) |
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{ |
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foreach ($writes as $write) { |
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// For every index |
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foreach (FullTextSearch::get_indexes() as $index => $instance) { |
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// If that index as a field from this class |
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if (SearchIntrospection::is_subclass_of($write['class'], $instance->dependancyList)) { |
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// Get the dirty IDs |
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$dirtyids = $instance->getDirtyIDs($write['class'], $write['id'], $write['statefulids'], $write['fields']); |
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// Then add then then to the global list to deal with later |
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foreach ($dirtyids as $dirtyclass => $ids) { |
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if ($ids) { |
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if (!self::$processor) { |
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self::$processor = Injector::inst()->create(SearchUpdateImmediateProcessor::class); |
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} |
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self::$processor->addDirtyIDs($dirtyclass, $ids, $index); |
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} |
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} |
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} |
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} |
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} |
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// If we do have some work to do register the shutdown function to actually do the work |
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if (self::$processor && !self::$registered && self::config()->get('flush_on_shutdown')) { |
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register_shutdown_function(array(SearchUpdater::class, "flush_dirty_indexes")); |
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self::$registered = true; |
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} |
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} |
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/** |
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* Throw away the recorded dirty IDs without doing anything with them. |
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*/ |
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public static function clear_dirty_indexes() |
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{ |
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self::$processor = null; |
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} |
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/** |
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* Do something with the recorded dirty IDs, where that "something" depends on the value of self::$update_method, |
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* either immediately update the indexes, queue a messsage to update the indexes at some point in the future, or |
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* just throw the dirty IDs away. |
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*/ |
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public static function flush_dirty_indexes() |
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{ |
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if (!self::$processor) { |
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return; |
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} |
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self::$processor->triggerProcessing(); |
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self::$processor = null; |
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} |
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} |
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This check marks private properties in classes that are never used. Those properties can be removed.