searchutil.inc.php
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<?php
require_once(KT_LIB_DIR . '/browse/Criteria.inc');
class KTSearchUtil {
function _oneCriteriaSetToSQL($aOneCriteriaSet) {
$aSQL = array();
$aJoinSQL = array();
$criteria_set = array();
foreach ($aOneCriteriaSet as $order => $dataset) {
$type = KTUtil::arrayGet($dataset, "type");
$sql = KTUtil::arrayGet($dataset, "sql");
if (!empty($type)) {
$oCriterion = Criteria::getCriterionByNumber($dataset["type"]);
if (PEAR::isError($oCriterion)) {
return PEAR::raiseError('Invalid criteria specified.');
}
$criteria_set[] = array($oCriterion, $dataset["data"]);
} else if (!empty($sql)) {
$criteria_set[] = $sql;
} else {
return PEAR::raiseError('Invalid criteria specified.');
}
}
foreach ($criteria_set as $oCriterionPair) {
$oCriterion = $oCriterionPair[0];
$aReq = $oCriterionPair[1];
if (is_object($oCriterion)) {
$res = $oCriterion->searchSQL($aReq);
if (!is_null($res)) {
$aSQL[] = $res;
}
$res = $oCriterion->searchJoinSQL();
if (!is_null($res)) {
$aJoinSQL[] = $res;
}
} else {
$aSQL[] = array($oCriterion, $aReq);
}
}
$aCritParams = array();
$aCritQueries = array();
foreach ($aSQL as $sSQL) {
if (is_array($sSQL)) {
$aCritQueries[] = '('.$sSQL[0].')';
$aCritParams = array_merge($aCritParams , $sSQL[1]);
} else {
$aCritQueries[] = '('.$sSQL.')';
}
}
if (count($aCritQueries) == 0) {
return PEAR::raiseError("No search criteria were specified");
}
return array($aCritQueries, $aCritParams, $aJoinSQL);
}
function criteriaSetToSQL($aCriteriaSet, $iRecurseLevel = 0) {
$aJoinSQL = array();
$aSearchStrings = array();
$aParams = array();
foreach ($aCriteriaSet["subgroup"] as $k => $aOneCriteriaSet) {
$aValues = KTUtil::arrayGet($aOneCriteriaSet, "values");
$aSubgroup = KTUtil::arrayGet($aOneCriteriaSet, "subgroup");
if (!empty($aValues)) {
list($aThisCritQueries, $aThisParams, $aThisJoinSQL) = KTSearchUtil::_oneCriteriaSetToSQL($aOneCriteriaSet["values"]);
$aJoinSQL = array_merge($aJoinSQL, $aThisJoinSQL);
$aParams = array_merge($aParams, $aThisParams);
$tabs = str_repeat("\t", ($iRecurseLevel + 2));
$aSearchStrings[] = "\n$tabs(\n$tabs\t" . join("\n " . KTUtil::arrayGet($aOneCriteriaSet, 'join', "AND") . " ", $aThisCritQueries) . "\n$tabs)";
} else if (!empty($aSubgroup)) {
list($sThisSearchString, $aThisParams, $sThisJoinSQL) =
KTSearchUtil::criteriaSetToSQL($aOneCriteriaSet, $iRecurseLevel + 1);
$aJoinSQL[] = $sThisJoinSQL;
$aParams = array_merge($aParams, $aThisParams);
$aSearchStrings[] = $sThisSearchString;
}
}
$sJoinSQL = join(" ", $aJoinSQL);
$tabs = str_repeat("\t", $iRecurseLevel + 1);
$sSearchString = "\n$tabs(" . join("\n$tabs\t" . $aCriteriaSet['join'] . " ", $aSearchStrings) . "\n$tabs)";
return array($sSearchString, $aParams, $sJoinSQL);
}
function permissionToSQL($oUser, $sPermissionName) {
if (is_null($oUser)) {
return array("", array(), "");
}
$oPermission =& KTPermission::getByName('ktcore.permissions.read');
$sPermissionLookupsTable = KTUtil::getTableName('permission_lookups');
$sPermissionLookupAssignmentsTable = KTUtil::getTableName('permission_lookup_assignments');
$sPermissionDescriptorsTable = KTUtil::getTableName('permission_descriptors');
$sJoinSQL = "
INNER JOIN $sPermissionLookupsTable AS PL ON D.permission_lookup_id = PL.id
INNER JOIN $sPermissionLookupAssignmentsTable AS PLA ON PL.id = PLA.permission_lookup_id AND PLA.permission_id = ?
";
$aGroups = GroupUtil::listGroupsForUserExpand($oUser);
$aPermissionDescriptors = KTPermissionDescriptor::getByGroups($aGroups, array('ids' => true));
$sPermissionDescriptors = DBUtil::paramArray($aPermissionDescriptors);
$sSQLString = "PLA.permission_descriptor_id IN ($sPermissionDescriptors)";
$aParams = array($oPermission->getId());
$aParams = array_merge($aParams, $aPermissionDescriptors);
return array($sSQLString, $aParams, $sJoinSQL);
}
function criteriaToLegacyQuery($aCriteriaSet, $oUser, $sPermissionName) {
global $default;
$aOptions = array(
'select' => "F.name AS folder_name, F.id AS folder_id, D.id AS document_id, D.name AS document_name, D.filename AS file_name, 'View' AS view",
'join' => "INNER JOIN $default->folders_table AS F ON D.folder_id = F.id",
);
return KTSearchUtil::criteriaToQuery($aCriteriaSet, $oUser, $sPermissionName, $aOptions);
}
function criteriaToQuery($aCriteriaSet, $oUser, $sPermissionName, $aOptions = null) {
global $default;
$sSelect = KTUtil::arrayGet($aOptions, 'select', 'D.id AS document_id');
$sInitialJoin = KTUtil::arrayGet($aOptions, 'join', '');
list($sSQLSearchString, $aCritParams, $sCritJoinSQL) = KTSearchUtil::criteriaSetToSQL($aCriteriaSet);
$sToSearch = KTUtil::arrayGet($aOrigReq, 'fToSearch', 'Live'); // actually never present in this version.
list ($sPermissionString, $aPermissionParams, $sPermissionJoin) = KTSearchUtil::permissionToSQL($oUser, $sPermissionName);
//$sQuery = DBUtil::compactQuery("
$aPotentialWhere = array($sPermissionString, 'SL.name = ?', "($sSQLSearchString)");
$aWhere = array();
foreach ($aPotentialWhere as $sWhere) {
if (empty($sWhere)) {
continue;
}
if ($sWhere == "()") {
continue;
}
$aWhere[] = $sWhere;
}
$sWhere = "";
if ($aWhere) {
$sWhere = "\tWHERE " . join(" AND ", $aWhere);
}
$sQuery = ("
SELECT
$sSelect
FROM
$default->documents_table AS D
INNER JOIN $default->status_table AS SL on D.status_id=SL.id
$sInitialJoin
$sCritJoinSQL
$sPermissionJoin
$sWhere");
// GROUP BY D.id
$aParams = array();
$aParams = array_merge($aParams, $aPermissionParams);
$aParams[] = $sToSearch;
$aParams = array_merge($aParams, $aCritParams);
return array($sQuery, $aParams);
}
function testConditionOnDocument($oSearch, $oDocument) {
$oSearch =& KTUtil::getObject('KTSavedSearch', $oSearch);
$iDocumentId = KTUtil::getId($oDocument);
$aCriteriaSet = array(
"join" => "AND",
"subgroup" => array(
$oSearch->getSearch(),
array(
"join" => "AND",
"values" => array(
array(
"sql" => array("D.id = ?", array($iDocumentId)),
),
),
),
),
);
$aOptions = array('select' => 'COUNT(DISTINCT(D.id)) AS cnt');
$aQuery = KTSearchUtil::criteriaToQuery($aCriteriaSet, null, null, $aOptions);
$cnt = DBUtil::getOneResultKey($aQuery, 'cnt');
if (PEAR::isError($cnt)) {
return $cnt;
}
if (is_null($cnt)) {
return false;
}
if (!is_numeric($cnt)) {
return PEAR::raiseError("Non-integer returned when looking for count");
}
return $cnt > 0;
}
}