/**
* Method used to update rows in the DB. Rows are selected based
* on selectCriteria and updated using values in updateValues.
* <p>
* Use this method for performing an update of the kind:
* <p>
* WHERE some_column = some value AND could_have_another_column =
* another value AND so on.
*
* @param $selectCriteria A Criteria object containing values used in where
* clause.
* @param $updateValues A Criteria object containing values used in set
* clause.
* @param PropelPDO $con The PropelPDO connection object to use.
* @return int The number of rows affected by last update statement. For most
* uses there is only one update statement executed, so this number
* will correspond to the number of rows affected by the call to this
* method. Note that the return value does require that this information
* is returned (supported) by the Propel db driver.
* @throws PropelException
*/
public static function doUpdate(Criteria $selectCriteria, Criteria $updateValues, PropelPDO $con)
{
$db = Propel::getDB($selectCriteria->getDbName());
$dbMap = Propel::getDatabaseMap($selectCriteria->getDbName());
// Get list of required tables, containing all columns
$tablesColumns = $selectCriteria->getTablesColumns();
if (empty($tablesColumns)) {
$tablesColumns = array($selectCriteria->getPrimaryTableName() => array());
}
// we also need the columns for the update SQL
$updateTablesColumns = $updateValues->getTablesColumns();
$affectedRows = 0;
// initialize this in case the next loop has no iterations.
foreach ($tablesColumns as $tableName => $columns) {
$whereClause = array();
$params = array();
$stmt = null;
try {
$sql = 'UPDATE ';
if ($queryComment = $selectCriteria->getComment()) {
$sql .= '/* ' . $queryComment . ' */ ';
}
// is it a table alias?
if ($tableName2 = $selectCriteria->getTableForAlias($tableName)) {
$udpateTable = $tableName2 . ' ' . $tableName;
$tableName = $tableName2;
} else {
$udpateTable = $tableName;
}
if ($db->useQuoteIdentifier()) {
$sql .= $db->quoteIdentifierTable($udpateTable);
} else {
$sql .= $udpateTable;
}
$sql .= " SET ";
$p = 1;
foreach ($updateTablesColumns[$tableName] as $col) {
$updateColumnName = substr($col, strrpos($col, '.') + 1);
// add identifiers for the actual database?
if ($db->useQuoteIdentifier()) {
$updateColumnName = $db->quoteIdentifier($updateColumnName);
}
if ($updateValues->getComparison($col) != Criteria::CUSTOM_EQUAL) {
$sql .= $updateColumnName . '=:p' . $p++ . ', ';
} else {
$param = $updateValues->get($col);
$sql .= $updateColumnName . ' = ';
if (is_array($param)) {
if (isset($param['raw'])) {
$raw = $param['raw'];
$rawcvt = '';
// parse the $params['raw'] for ? chars
for ($r = 0, $len = strlen($raw); $r < $len; $r++) {
if ($raw[$r] == '?') {
$rawcvt .= ':p' . $p++;
} else {
$rawcvt .= $raw[$r];
}
}
$sql .= $rawcvt . ', ';
} else {
$sql .= ':p' . $p++ . ', ';
}
if (isset($param['value'])) {
$updateValues->put($col, $param['value']);
}
} else {
$updateValues->remove($col);
$sql .= $param . ', ';
}
}
}
$params = self::buildParams($updateTablesColumns[$tableName], $updateValues);
$sql = substr($sql, 0, -2);
if (!empty($columns)) {
foreach ($columns as $colName) {
$sb = "";
$selectCriteria->getCriterion($colName)->appendPsTo($sb, $params);
$whereClause[] = $sb;
}
$sql .= " WHERE " . implode(" AND ", $whereClause);
}
$stmt = $con->prepare($sql);
// Replace ':p?' with the actual values
self::populateStmtValues($stmt, $params, $dbMap, $db);
$stmt->execute();
$affectedRows = $stmt->rowCount();
$stmt = null;
// close
} catch (Exception $e) {
if ($stmt) {
$stmt = null;
}
// close
Propel::log($e->getMessage(), Propel::LOG_ERR);
throw new PropelException(sprintf('Unable to execute UPDATE statement [%s]', $sql), $e);
}
}
// foreach table in the criteria
return $affectedRows;
}
