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\Zend_Db::INT_TYPE, \Zend_Db::BIGINT_TYPE => \Zend_Db::BIGINT_TYPE, \Zend_Db::FLOAT_TYPE => \Zend_Db::FLOAT_TYPE, 'INT' => \Zend_Db::INT_TYPE, 'INTEGER' => \Zend_Db::INT_TYPE, 'MEDIUMINT' => \Zend_Db::INT_TYPE, 'SMALLINT' => \Zend_Db::INT_TYPE, 'TINYINT' => \Zend_Db::INT_TYPE, 'BIGINT' => \Zend_Db::BIGINT_TYPE, 'SERIAL' => \Zend_Db::BIGINT_TYPE, 'DEC' => \Zend_Db::FLOAT_TYPE, 'DECIMAL' => \Zend_Db::FLOAT_TYPE, 'DOUBLE' => \Zend_Db::FLOAT_TYPE, 'DOUBLE PRECISION' => \Zend_Db::FLOAT_TYPE, 'FIXED' => \Zend_Db::FLOAT_TYPE, 'FLOAT' => \Zend_Db::FLOAT_TYPE); /** * Override _dsn() and ensure that charset is incorporated in mysql * @see Zend_Db_Adapter_Pdo_Abstract::_dsn() */ protected function _dsn() { $dsn = parent::_dsn(); if (isset($this->_config['charset'])) { $dsn .= ';charset=' . $this->_config['charset']; } return $dsn; } /** * Creates a PDO object and connects to the database. * * @return void * @throws Zend_Db_Adapter_Exception */ protected function _connect() { if ($this->_connection) { return; } if (!empty($this->_config['charset'])) { $initCommand = "SET NAMES '" . $this->_config['charset'] . "'"; if (!empty($this->_config['collation'])) { $initCommand .= " COLLATE '" . $this->_config['collation'] . "'"; } $this->_config['driver_options'][1002] = $initCommand; // 1002 = PDO::MYSQL_ATTR_INIT_COMMAND } parent::_connect(); } /** * @return string */ public function getQuoteIdentifierSymbol() { return "`"; } /** * Returns a list of the tables in the database. * * @return array */ public function listTables() { return $this->fetchCol('SHOW TABLES'); } /** * 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 * * @param string $tableName * @param string $schemaName OPTIONAL * @return array */ public function describeTable($tableName, $schemaName = null) { // @todo use INFORMATION_SCHEMA someday when MySQL's // implementation has reasonably good performance and // the version with this improvement is in wide use. if ($schemaName) { $sql = 'DESCRIBE ' . $this->quoteIdentifier("{$schemaName}.{$tableName}", \true); } else { $sql = 'DESCRIBE ' . $this->quoteIdentifier($tableName, \true); } $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); $field = 0; $type = 1; $null = 2; $key = 3; $default = 4; $extra = 5; $desc = array(); $i = 1; $p = 1; foreach ($result as $row) { list($length, $scale, $precision, $unsigned, $primary, $primaryPosition, $identity) = array(null, null, null, null, \false, null, \false); if (\preg_match('/unsigned/', $row[$type])) { $unsigned = \true; } if (\preg_match('/^((?:var)?char)\$(\\d+)\$/', $row[$type], $matches)) { $row[$type] = $matches[1]; $length = $matches[2]; } else { if (\preg_match('/^decimal\$(\\d+),(\\d+)\$/', $row[$type], $matches)) { $row[$type] = 'decimal'; $precision = $matches[1]; $scale = $matches[2]; } else { if (\preg_match('/^float\$(\\d+),(\\d+)\$/', $row[$type], $matches)) { $row[$type] = 'float'; $precision = $matches[1]; $scale = $matches[2]; } else { if (\preg_match('/^((?:big|medium|small|tiny)?int)\$(\\d+)\$/', $row[$type], $matches)) { $row[$type] = $matches[1]; // The optional argument of a MySQL int type is not precision // or length; it is only a hint for display width. } } } } if (\strtoupper($row[$key]) == 'PRI') { $primary = \true; $primaryPosition = $p; if ($row[$extra] == 'auto_increment') { $identity = \true; } else { $identity = \false; } ++$p; } $desc[$this->foldCase($row[$field])] = array( 'SCHEMA_NAME' => null, // @todo 'TABLE_NAME' => $this->foldCase($tableName), 'COLUMN_NAME' => $this->foldCase($row[$field]), 'COLUMN_POSITION' => $i, 'DATA_TYPE' => $row[$type], 'DEFAULT' => $row[$default], 'NULLABLE' => (bool) ($row[$null] == 'YES'), 'LENGTH' => $length, 'SCALE' => $scale, 'PRECISION' => $precision, 'UNSIGNED' => $unsigned, 'PRIMARY' => $primary, 'PRIMARY_POSITION' => $primaryPosition, 'IDENTITY' => $identity, ); ++$i; } return $desc; } /** * Adds an adapter-specific LIMIT clause to the SELECT statement. * * @param string $sql * @param integer $count * @param integer $offset OPTIONAL * @throws Zend_Db_Adapter_Exception * @return string */ public function limit($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; } } }