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<?php
namespace Bitrix\Main\DB;
class OracleDbConnection
extends DbConnection
{
private $transaction = OCI_COMMIT_ON_SUCCESS;
/**********************************************************
* SqlHelper
**********************************************************/
/**
* @return SqlHelper
*/
protected function createSqlHelper()
{
return new OracleSqlHelper($this);
}
/***********************************************************
* Connection and disconnection
***********************************************************/
protected function connectInternal()
{
if ($this->isConnected)
return;
if (($this->dbOptions & self::PERSISTENT) != 0)
$connection = oci_pconnect($this->dbLogin, $this->dbPassword, $this->dbName);
else
$connection = oci_connect($this->dbLogin, $this->dbPassword, $this->dbName);
if (!$connection)
throw new ConnectionException('Oracle connect error', $this->getErrorMessage());
$this->isConnected = true;
$this->resource = $connection;
global $DB, $USER, $APPLICATION;
if ($fn = \Bitrix\Main\Loader::getPersonal("php_interface/after_connect.php"))
include($fn);
}
protected function disconnectInternal()
{
if (!$this->isConnected)
return;
$this->isConnected = false;
oci_close($this->resource);
}
/*********************************************************
* Query
*********************************************************/
/**
* @param $sql
* @param array|null $arBinds
* @param $offset
* @param $limit
* @param \Bitrix\Main\Diag\SqlTrackerQuery|null $trackerQuery
* @return resource
* @throws SqlException|\Bitrix\Main\ArgumentException
*/
protected function queryInternal($sql, array $arBinds = null, $offset = 0, $limit = 0, \Bitrix\Main\Diag\SqlTrackerQuery $trackerQuery = null)
{
$this->connectInternal();
$offset = intval($offset);
$limit = intval($limit);
if ($offset > 0 && $limit <= 0)
throw new \Bitrix\Main\ArgumentException("Limit should be set if offset is set");
$bindsKeys = array();
if (!empty($arBinds))
{
$binds1 = $binds2 = "";
foreach ($arBinds as $key => $value)
{
if (strlen($value) > 0)
{
if ($binds1 != "")
{
$binds1 .= ",";
$binds2 .= ",";
}
$bindsKeys[] = $key;
$binds1 .= $key;
$binds2 .= ":".$key;
}
}
if ($binds1 != "")
$sql .= " RETURNING ".$binds1." INTO ".$binds2;
}
if ($limit > 0)
{
if (preg_match("#\\sROWNUM\\W#i", $sql))
throw new \Bitrix\Main\ArgumentException("Duplicate limit settings");
if ($offset <= 0)
{
$sql =
"SELECT * ".
"FROM (".$sql.") ".
"WHERE ROWNUM <= ".$limit."";
}
else
{
$sql =
"SELECT * ".
"FROM (".
" SELECT rownum_query_alias.*, ROWNUM rownum_alias ".
" FROM (".$sql.") rownum_query_alias ".
" WHERE ROWNUM <= ".($offset + $limit - 1)." ".
") ".
"WHERE rownum_alias >= ".$offset."";
}
}
if ($trackerQuery != null)
$trackerQuery->startQuery($sql, $arBinds);
$result = oci_parse($this->resource, $sql);
if (!$result)
{
if ($trackerQuery != null)
$trackerQuery->finishQuery();
throw new SqlException("", $this->getErrorMessage());
}
$executionMode = $this->transaction;
$clob = array();
if (!empty($arBinds))
{
$executionMode = OCI_DEFAULT;
foreach ($bindsKeys as $key)
{
$clob[$key] = oci_new_descriptor($this->resource, OCI_D_LOB);
oci_bind_by_name($result, ":".$key, $clob[$key], -1, OCI_B_CLOB);
}
}
if (!oci_execute($result, $executionMode))
{
if ($trackerQuery != null)
$trackerQuery->finishQuery();
throw new SqlException("", $this->getErrorMessage());
}
if (!empty($arBinds))
{
if (oci_num_rows($result) > 0)
foreach ($bindsKeys as $key)
$clob[$key]->save($arBinds[$key]);
if ($this->transaction == OCI_COMMIT_ON_SUCCESS)
oci_commit($this->resource);
foreach ($bindsKeys as $key)
$clob[$key]->free();
}
if ($trackerQuery != null)
$trackerQuery->finishQuery();
$this->lastQueryResult = $result;
return $result;
}
/**
* Adds row to table and returns ID of added row
*
* @param string $tableName
* @param array $data
* @param string $identity
* @return integer
*/
public function add($tableName, array $data, $identity = "ID")
{
if($identity !== null && !isset($data[$identity]))
$data[$identity] = $this->getIdentity("sq_".$tableName);
$insert = $this->getSqlHelper()->prepareInsert($tableName, $data);
$binds = array();
foreach($insert[2] as $name)
if(isset($data[$name]))
$binds[$name] = $data[$name];
$sql =
"INSERT INTO ".$tableName."(".$insert[0].") ".
"VALUES (".$insert[1].")";
$this->queryExecute($sql, $binds);
return $data[$identity];
}
public function getIdentity($name = "")
{
$name = preg_replace("/[^A-Za-z0-9_]+/i", "", $name);
$name = trim($name);
if($name == '')
throw new \Bitrix\Main\ArgumentNullException("name");
$sql = "SELECT ".$name.".NEXTVAL FROM DUAL";
return $this->queryScalar($sql);
}
/**
* @param $result
* @param \Bitrix\Main\Diag\SqlTrackerQuery $trackerQuery
* @return OracleDbResult
*/
protected function createDbResult($result, \Bitrix\Main\Diag\SqlTrackerQuery $trackerQuery = null)
{
return new OracleDbResult($this, $result, $trackerQuery);
}
public function getAffectedRowsCount()
{
return oci_num_rows($this->lastQueryResult);
}
/*********************************************************
* DDL
*********************************************************/
public function isTableExists($tableName)
{
if (empty($tableName))
return false;
$result = $this->queryScalar("
SELECT COUNT(TABLE_NAME)
FROM USER_TABLES
WHERE TABLE_NAME LIKE UPPER('".$this->getSqlHelper()->forSql($tableName)."')
");
return ($result > 0);
}
public function isIndexExists($tableName, array $arColumns)
{
return $this->getIndexName($tableName, $arColumns) !== null;
}
public function getIndexName($tableName, array $arColumns, $strict = false)
{
if (!is_array($arColumns) || empty($arColumns))
return null;
$isFunc = false;
$arIndexes = array();
$result = $this->query("SELECT * FROM USER_IND_COLUMNS WHERE TABLE_NAME = upper('".$this->getSqlHelper()->forSql($tableName)."')");
while ($ar = $result->fetch())
{
$arIndexes[$ar["INDEX_NAME"]][$ar["COLUMN_POSITION"] - 1] = $ar["COLUMN_NAME"];
if (strncmp($ar["COLUMN_NAME"], "SYS_NC", 6) === 0)
$isFunc = true;
}
if ($isFunc)
{
$result = $this->query("SELECT * FROM USER_IND_EXPRESSIONS WHERE TABLE_NAME = upper('".$this->getSqlHelper()->forSql($tableName)."')");
while ($ar = $result->fetch())
$arIndexes[$ar["INDEX_NAME"]][$ar["COLUMN_POSITION"] - 1] = $ar["COLUMN_EXPRESSION"];
}
$columns = implode(",", $arColumns);
foreach ($arIndexes as $key => $arKeyColumn)
{
ksort($arKeyColumn);
$keyColumn = implode(",", $arKeyColumn);
if ($strict)
{
if ($keyColumn === $columns)
return $key;
}
else
{
if (substr($keyColumn, 0, strlen($columns)) === $columns)
return $key;
}
}
return null;
}
public function getTableFields($tableName)
{
if (!array_key_exists($tableName, $this->tableColumnsCache))
{
$this->tableColumnsCache[$tableName] = array();
$sql = "SELECT *
FROM USER_TAB_COLUMNS
WHERE UPPER(TABLE_NAME) = UPPER('".$this->getSqlHelper()->forSql($tableName)."')";
$result = $this->query($sql);
while ($ar = $result->fetch())
{
$ar["NAME"] = $ar["COLUMN_NAME"];
$ar["TYPE"] = $ar["DATA_TYPE"];
$this->tableColumnsCache[$tableName][$ar["COLUMN_NAME"]] = $ar;
}
}
return $this->tableColumnsCache[$tableName];
}
/*********************************************************
* Transaction
*********************************************************/
public function startTransaction()
{
$this->transaction = OCI_DEFAULT;
}
public function commitTransaction()
{
$this->connectInternal();
OCICommit($this->resource);
$this->transaction = OCI_COMMIT_ON_SUCCESS;
}
public function rollbackTransaction()
{
$this->connectInternal();
OCIRollback($this->resource);
$this->transaction = OCI_COMMIT_ON_SUCCESS;
}
/*********************************************************
* Type, version, cache, etc.
*********************************************************/
protected function getErrorMessage()
{
if ($this->isConnected)
$error = oci_error($this->resource);
else
$error = oci_error();
if (!$error)
return "";
$result = sprintf("[%s] %s", $error["code"], $error["message"]);
if (!empty($error["sqltext"]))
$result .= sprintf(" (%s)", $error["sqltext"]);
return $result;
}
public function getType()
{
return "oracle";
}
public function getVersion()
{
if ($this->version == null)
{
$version = $this->queryScalar('SELECT BANNER FROM v$version');
if ($version != null)
{
$version = trim($version);
$this->versionExpress = (strpos($version, "Express Edition") > 0);
preg_match("#[0-9]+\\.[0-9]+\\.[0-9]+#", $version, $arr);
$this->version = $arr[0];
}
}
return array($this->version, $this->versionExpress);
}
}