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| Current Path : /var/www/web28/html/wp-content/plugins/matomo/app/libs/Zend/Db/Adapter/Pdo/ |
| Current File : //var/www/web28/html/wp-content/plugins/matomo/app/libs/Zend/Db/Adapter/Pdo/Pgsql.php |
<?php
namespace {
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Db
* @subpackage Adapter
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Pgsql.php 23775 2011-03-01 17:25:24Z ralph $
*/
/**
* @see Zend_Db_Adapter_Pdo_Abstract
*/
// require_once 'Zend/Db/Adapter/Pdo/Abstract.php';
/**
* Class for connecting to PostgreSQL databases and performing common operations.
*
* @category Zend
* @package Zend_Db
* @subpackage Adapter
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Db_Adapter_Pdo_Pgsql extends \Zend_Db_Adapter_Pdo_Abstract
{
/**
* PDO type.
*
* @var string
*/
protected $_pdoType = 'pgsql';
/**
* Keys are UPPERCASE SQL datatypes or the constants
* Zend_Db::INT_TYPE, Zend_Db::BIGINT_TYPE, or Zend_Db::FLOAT_TYPE.
*
* Values are:
* 0 = 32-bit integer
* 1 = 64-bit integer
* 2 = float or decimal
*
* @var array Associative array of datatypes to values 0, 1, or 2.
*/
protected $_numericDataTypes = array(\Zend_Db::INT_TYPE => \Zend_Db::INT_TYPE, \Zend_Db::BIGINT_TYPE => \Zend_Db::BIGINT_TYPE, \Zend_Db::FLOAT_TYPE => \Zend_Db::FLOAT_TYPE, 'INTEGER' => \Zend_Db::INT_TYPE, 'SERIAL' => \Zend_Db::INT_TYPE, 'SMALLINT' => \Zend_Db::INT_TYPE, 'BIGINT' => \Zend_Db::BIGINT_TYPE, 'BIGSERIAL' => \Zend_Db::BIGINT_TYPE, 'DECIMAL' => \Zend_Db::FLOAT_TYPE, 'DOUBLE PRECISION' => \Zend_Db::FLOAT_TYPE, 'NUMERIC' => \Zend_Db::FLOAT_TYPE, 'REAL' => \Zend_Db::FLOAT_TYPE);
/**
* Creates a PDO object and connects to the database.
*
* @return void
* @throws Zend_Db_Adapter_Exception
*/
protected function _connect()
{
if ($this->_connection) {
return;
}
parent::_connect();
if (!empty($this->_config['charset'])) {
$sql = "SET NAMES '" . $this->_config['charset'] . "'";
$this->_connection->exec($sql);
}
}
/**
* Returns a list of the tables in the database.
*
* @return array
*/
public function listTables()
{
// @todo use a better query with joins instead of subqueries
$sql = "SELECT c.relname AS table_name " . "FROM pg_class c, pg_user u " . "WHERE c.relowner = u.usesysid AND c.relkind = 'r' " . "AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname) " . "AND c.relname !~ '^(pg_|sql_)' " . "UNION " . "SELECT c.relname AS table_name " . "FROM pg_class c " . "WHERE c.relkind = 'r' " . "AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname) " . "AND NOT EXISTS (SELECT 1 FROM pg_user WHERE usesysid = c.relowner) " . "AND c.relname !~ '^pg_'";
return $this->fetchCol($sql);
}
/**
* Returns the column descriptions for a table.
*
* The return value is an associative array keyed by the column name,
* as returned by the RDBMS.
*
* The value of each array element is an associative array
* with the following keys:
*
* SCHEMA_NAME => string; name of database or schema
* TABLE_NAME => string;
* COLUMN_NAME => string; column name
* COLUMN_POSITION => number; ordinal position of column in table
* DATA_TYPE => string; SQL datatype name of column
* DEFAULT => string; default expression of column, null if none
* NULLABLE => boolean; true if column can have nulls
* LENGTH => number; length of CHAR/VARCHAR
* SCALE => number; scale of NUMERIC/DECIMAL
* PRECISION => number; precision of NUMERIC/DECIMAL
* UNSIGNED => boolean; unsigned property of an integer type
* PRIMARY => boolean; true if column is part of the primary key
* PRIMARY_POSITION => integer; position of column in primary key
* IDENTITY => integer; true if column is auto-generated with unique values
*
* @todo Discover integer unsigned property.
*
* @param string $tableName
* @param string $schemaName OPTIONAL
* @return array
*/
public function describeTable($tableName, $schemaName = null)
{
$sql = "SELECT\n a.attnum,\n n.nspname,\n c.relname,\n a.attname AS colname,\n t.typname AS type,\n a.atttypmod,\n FORMAT_TYPE(a.atttypid, a.atttypmod) AS complete_type,\n d.adsrc AS default_value,\n a.attnotnull AS notnull,\n a.attlen AS length,\n co.contype,\n ARRAY_TO_STRING(co.conkey, ',') AS conkey\n FROM pg_attribute AS a\n JOIN pg_class AS c ON a.attrelid = c.oid\n JOIN pg_namespace AS n ON c.relnamespace = n.oid\n JOIN pg_type AS t ON a.atttypid = t.oid\n LEFT OUTER JOIN pg_constraint AS co ON (co.conrelid = c.oid\n AND a.attnum = ANY(co.conkey) AND co.contype = 'p')\n LEFT OUTER JOIN pg_attrdef AS d ON d.adrelid = c.oid AND d.adnum = a.attnum\n WHERE a.attnum > 0 AND c.relname = " . $this->quote($tableName);
if ($schemaName) {
$sql .= " AND n.nspname = " . $this->quote($schemaName);
}
$sql .= ' ORDER BY a.attnum';
$stmt = $this->query($sql);
// Use FETCH_NUM so we are not dependent on the CASE attribute of the PDO connection
$result = $stmt->fetchAll(\Zend_Db::FETCH_NUM);
$attnum = 0;
$nspname = 1;
$relname = 2;
$colname = 3;
$type = 4;
$atttypemod = 5;
$complete_type = 6;
$default_value = 7;
$notnull = 8;
$length = 9;
$contype = 10;
$conkey = 11;
$desc = array();
foreach ($result as $key => $row) {
$defaultValue = $row[$default_value];
if ($row[$type] == 'varchar' || $row[$type] == 'bpchar') {
if (\preg_match('/character(?: varying)?(?:\\((\\d+)\\))?/', $row[$complete_type], $matches)) {
if (isset($matches[1])) {
$row[$length] = $matches[1];
} else {
$row[$length] = null;
// unlimited
}
}
if (\preg_match("/^'(.*?)'::(?:character varying|bpchar)\$/", $defaultValue, $matches)) {
$defaultValue = $matches[1];
}
}
list($primary, $primaryPosition, $identity) = array(\false, null, \false);
if ($row[$contype] == 'p') {
$primary = \true;
$primaryPosition = \array_search($row[$attnum], \explode(',', $row[$conkey])) + 1;
$identity = (bool) \preg_match('/^nextval/', $row[$default_value]);
}
$desc[$this->foldCase($row[$colname])] = array(
'SCHEMA_NAME' => $this->foldCase($row[$nspname]),
'TABLE_NAME' => $this->foldCase($row[$relname]),
'COLUMN_NAME' => $this->foldCase($row[$colname]),
'COLUMN_POSITION' => $row[$attnum],
'DATA_TYPE' => $row[$type],
'DEFAULT' => $defaultValue,
'NULLABLE' => (bool) ($row[$notnull] != 't'),
'LENGTH' => $row[$length],
'SCALE' => null,
// @todo
'PRECISION' => null,
// @todo
'UNSIGNED' => null,
// @todo
'PRIMARY' => $primary,
'PRIMARY_POSITION' => $primaryPosition,
'IDENTITY' => $identity,
);
}
return $desc;
}
/**
* Adds an adapter-specific LIMIT clause to the SELECT statement.
*
* @param string $sql
* @param integer $count
* @param integer $offset OPTIONAL
* @return string
*/
public function limit($sql, $count, $offset = 0)
{
$count = \intval($count);
if ($count <= 0) {
/**
* @see Zend_Db_Adapter_Exception
*/
// require_once 'Zend/Db/Adapter/Exception.php';
throw new \Zend_Db_Adapter_Exception("LIMIT argument count={$count} is not valid");
}
$offset = \intval($offset);
if ($offset < 0) {
/**
* @see Zend_Db_Adapter_Exception
*/
// require_once 'Zend/Db/Adapter/Exception.php';
throw new \Zend_Db_Adapter_Exception("LIMIT argument offset={$offset} is not valid");
}
$sql .= " LIMIT {$count}";
if ($offset > 0) {
$sql .= " OFFSET {$offset}";
}
return $sql;
}
/**
* Return the most recent value from the specified sequence in the database.
* This is supported only on RDBMS brands that support sequences
* (e.g. Oracle, PostgreSQL, DB2). Other RDBMS brands return null.
*
* @param string $sequenceName
* @return string
*/
public function lastSequenceId($sequenceName)
{
$this->_connect();
$sequenceName = \str_replace($this->getQuoteIdentifierSymbol(), '', (string) $sequenceName);
$value = $this->fetchOne("SELECT CURRVAL(" . $this->quote($this->quoteIdentifier($sequenceName, \true)) . ")");
return $value;
}
/**
* Generate a new value from the specified sequence in the database, and return it.
* This is supported only on RDBMS brands that support sequences
* (e.g. Oracle, PostgreSQL, DB2). Other RDBMS brands return null.
*
* @param string $sequenceName
* @return string
*/
public function nextSequenceId($sequenceName)
{
$this->_connect();
$sequenceName = \str_replace($this->getQuoteIdentifierSymbol(), '', (string) $sequenceName);
$value = $this->fetchOne("SELECT NEXTVAL(" . $this->quote($this->quoteIdentifier($sequenceName, \true)) . ")");
return $value;
}
/**
* Gets the last ID generated automatically by an IDENTITY/AUTOINCREMENT column.
*
* As a convention, on RDBMS brands that support sequences
* (e.g. Oracle, PostgreSQL, DB2), this method forms the name of a sequence
* from the arguments and returns the last id generated by that sequence.
* On RDBMS brands that support IDENTITY/AUTOINCREMENT columns, this method
* returns the last value generated for such a column, and the table name
* argument is disregarded.
*
* @param string $tableName OPTIONAL Name of table.
* @param string $primaryKey OPTIONAL Name of primary key column.
* @return string
*/
public function lastInsertId($tableName = null, $primaryKey = null)
{
if ($tableName !== null) {
$sequenceName = $tableName;
if ($primaryKey) {
$sequenceName .= "_{$primaryKey}";
}
$sequenceName .= '_seq';
return $this->lastSequenceId($sequenceName);
}
return $this->_connection->lastInsertId($tableName);
}
}
}
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