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PhabricatorMySQLFulltextStorageEngine.php
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Thu, Mar 6, 18:54

PhabricatorMySQLFulltextStorageEngine.php
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<?php
final class PhabricatorMySQLFulltextStorageEngine
extends PhabricatorFulltextStorageEngine {
public function getEngineIdentifier() {
return 'mysql';
}
public function getEnginePriority() {
return 100;
}
public function isEnabled() {
return true;
}
public function reindexAbstractDocument(
PhabricatorSearchAbstractDocument $doc) {
$phid = $doc->getPHID();
if (!$phid) {
throw new Exception(pht('Document has no PHID!'));
}
$store = new PhabricatorSearchDocument();
$store->setPHID($doc->getPHID());
$store->setDocumentType($doc->getDocumentType());
$store->setDocumentTitle($doc->getDocumentTitle());
$store->setDocumentCreated($doc->getDocumentCreated());
$store->setDocumentModified($doc->getDocumentModified());
$store->replace();
$conn_w = $store->establishConnection('w');
$field_dao = new PhabricatorSearchDocumentField();
queryfx(
$conn_w,
'DELETE FROM %T WHERE phid = %s',
$field_dao->getTableName(),
$phid);
foreach ($doc->getFieldData() as $field) {
list($ftype, $corpus, $aux_phid) = $field;
queryfx(
$conn_w,
'INSERT INTO %T (phid, phidType, field, auxPHID, corpus) '.
'VALUES (%s, %s, %s, %ns, %s)',
$field_dao->getTableName(),
$phid,
$doc->getDocumentType(),
$ftype,
$aux_phid,
$corpus);
}
$sql = array();
foreach ($doc->getRelationshipData() as $relationship) {
list($rtype, $to_phid, $to_type, $time) = $relationship;
$sql[] = qsprintf(
$conn_w,
'(%s, %s, %s, %s, %d)',
$phid,
$to_phid,
$rtype,
$to_type,
$time);
}
$rship_dao = new PhabricatorSearchDocumentRelationship();
queryfx(
$conn_w,
'DELETE FROM %T WHERE phid = %s',
$rship_dao->getTableName(),
$phid);
if ($sql) {
queryfx(
$conn_w,
'INSERT INTO %T '.
'(phid, relatedPHID, relation, relatedType, relatedTime) '.
'VALUES %Q',
$rship_dao->getTableName(),
implode(', ', $sql));
}
}
/**
* Rebuild the PhabricatorSearchAbstractDocument that was used to index
* an object out of the index itself. This is primarily useful for debugging,
* as it allows you to inspect the search index representation of a
* document.
*
* @param phid PHID of a document which exists in the search index.
* @return null|PhabricatorSearchAbstractDocument Abstract document object
* which corresponds to the original abstract document used to
* build the document index.
*/
public function reconstructDocument($phid) {
$dao_doc = new PhabricatorSearchDocument();
$dao_field = new PhabricatorSearchDocumentField();
$dao_relationship = new PhabricatorSearchDocumentRelationship();
$t_doc = $dao_doc->getTableName();
$t_field = $dao_field->getTableName();
$t_relationship = $dao_relationship->getTableName();
$doc = queryfx_one(
$dao_doc->establishConnection('r'),
'SELECT * FROM %T WHERE phid = %s',
$t_doc,
$phid);
if (!$doc) {
return null;
}
$fields = queryfx_all(
$dao_field->establishConnection('r'),
'SELECT * FROM %T WHERE phid = %s',
$t_field,
$phid);
$relationships = queryfx_all(
$dao_relationship->establishConnection('r'),
'SELECT * FROM %T WHERE phid = %s',
$t_relationship,
$phid);
$adoc = id(new PhabricatorSearchAbstractDocument())
->setPHID($phid)
->setDocumentType($doc['documentType'])
->setDocumentTitle($doc['documentTitle'])
->setDocumentCreated($doc['documentCreated'])
->setDocumentModified($doc['documentModified']);
foreach ($fields as $field) {
$adoc->addField(
$field['field'],
$field['corpus'],
$field['auxPHID']);
}
foreach ($relationships as $relationship) {
$adoc->addRelationship(
$relationship['relation'],
$relationship['relatedPHID'],
$relationship['relatedType'],
$relationship['relatedTime']);
}
return $adoc;
}
public function executeSearch(PhabricatorSavedQuery $query) {
$table = new PhabricatorSearchDocument();
$document_table = $table->getTableName();
$conn = $table->establishConnection('r');
$subquery = $this->newFulltextSubquery($query, $conn);
$offset = (int)$query->getParameter('offset', 0);
$limit = (int)$query->getParameter('limit', 25);
// NOTE: We must JOIN the subquery in order to apply a limit.
$results = queryfx_all(
$conn,
'SELECT
documentPHID,
MAX(fieldScore) AS documentScore
FROM (%Q) query
JOIN %T root ON query.documentPHID = root.phid
GROUP BY documentPHID
ORDER BY documentScore DESC
LIMIT %d, %d',
$subquery,
$document_table,
$offset,
$limit);
return ipull($results, 'documentPHID');
}
private function newFulltextSubquery(
PhabricatorSavedQuery $query,
AphrontDatabaseConnection $conn) {
$field = new PhabricatorSearchDocumentField();
$field_table = $field->getTableName();
$document = new PhabricatorSearchDocument();
$document_table = $document->getTableName();
$select = array();
$select[] = 'document.phid AS documentPHID';
$join = array();
$where = array();
$title_field = PhabricatorSearchDocumentFieldType::FIELD_TITLE;
$title_boost = 1024;
$raw_query = $query->getParameter('query');
$compiled_query = $this->compileQuery($raw_query);
if (strlen($compiled_query)) {
$select[] = qsprintf(
$conn,
'IF(field.field = %s, %d, 0) + '.
'MATCH(corpus) AGAINST (%s IN BOOLEAN MODE) AS fieldScore',
$title_field,
$title_boost,
$compiled_query);
$join[] = qsprintf(
$conn,
'%T field ON field.phid = document.phid',
$field_table);
$where[] = qsprintf(
$conn,
'MATCH(corpus) AGAINST (%s IN BOOLEAN MODE)',
$compiled_query);
if ($query->getParameter('field')) {
$where[] = qsprintf(
$conn,
'field.field = %s',
$field);
}
} else {
$select[] = qsprintf(
$conn,
'document.dateCreated AS fieldScore');
}
$exclude = $query->getParameter('exclude');
if ($exclude) {
$where[] = qsprintf(
$conn,
'document.phid != %s',
$exclude);
}
$types = $query->getParameter('types');
if ($types) {
if (strlen($compiled_query)) {
$where[] = qsprintf(
$conn,
'field.phidType IN (%Ls)',
$types);
}
$where[] = qsprintf(
$conn,
'document.documentType IN (%Ls)',
$types);
}
$join[] = $this->joinRelationship(
$conn,
$query,
'authorPHIDs',
PhabricatorSearchRelationship::RELATIONSHIP_AUTHOR);
$statuses = $query->getParameter('statuses', array());
$statuses = array_fuse($statuses);
$open_rel = PhabricatorSearchRelationship::RELATIONSHIP_OPEN;
$closed_rel = PhabricatorSearchRelationship::RELATIONSHIP_CLOSED;
$include_open = !empty($statuses[$open_rel]);
$include_closed = !empty($statuses[$closed_rel]);
if ($include_open && !$include_closed) {
$join[] = $this->joinRelationship(
$conn,
$query,
'statuses',
$open_rel,
true);
} else if ($include_closed && !$include_open) {
$join[] = $this->joinRelationship(
$conn,
$query,
'statuses',
$closed_rel,
true);
}
if ($query->getParameter('withAnyOwner')) {
$join[] = $this->joinRelationship(
$conn,
$query,
'withAnyOwner',
PhabricatorSearchRelationship::RELATIONSHIP_OWNER,
true);
} else if ($query->getParameter('withUnowned')) {
$join[] = $this->joinRelationship(
$conn,
$query,
'withUnowned',
PhabricatorSearchRelationship::RELATIONSHIP_UNOWNED,
true);
} else {
$join[] = $this->joinRelationship(
$conn,
$query,
'ownerPHIDs',
PhabricatorSearchRelationship::RELATIONSHIP_OWNER);
}
$join[] = $this->joinRelationship(
$conn,
$query,
'subscriberPHIDs',
PhabricatorSearchRelationship::RELATIONSHIP_SUBSCRIBER);
$join[] = $this->joinRelationship(
$conn,
$query,
'projectPHIDs',
PhabricatorSearchRelationship::RELATIONSHIP_PROJECT);
$join[] = $this->joinRelationship(
$conn,
$query,
'repository',
PhabricatorSearchRelationship::RELATIONSHIP_REPOSITORY);
$select = implode(', ', $select);
$join = array_filter($join);
foreach ($join as $key => $clause) {
$join[$key] = ' JOIN '.$clause;
}
$join = implode(' ', $join);
if ($where) {
$where = 'WHERE '.implode(' AND ', $where);
} else {
$where = '';
}
return qsprintf(
$conn,
'SELECT %Q FROM %T document %Q %Q LIMIT 1000',
$select,
$document_table,
$join,
$where);
}
protected function joinRelationship(
AphrontDatabaseConnection $conn,
PhabricatorSavedQuery $query,
$field,
$type,
$is_existence = false) {
$sql = qsprintf(
$conn,
'%T AS %C ON %C.phid = document.phid AND %C.relation = %s',
id(new PhabricatorSearchDocumentRelationship())->getTableName(),
$field,
$field,
$field,
$type);
if (!$is_existence) {
$phids = $query->getParameter($field, array());
if (!$phids) {
return null;
}
$sql .= qsprintf(
$conn,
' AND %C.relatedPHID in (%Ls)',
$field,
$phids);
}
return $sql;
}
private function compileQuery($raw_query) {
$compiler = PhabricatorSearchDocument::newQueryCompiler();
return $compiler
->setQuery($raw_query)
->compileQuery();
}
public function indexExists() {
return true;
}
}

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