From 8ca6cc32b2c789a3149861159ad258f2cb9491e3 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 14:39:39 +0200 Subject: Adding upstream version 2.11.4. Signed-off-by: Daniel Baumann --- library/vendor/Zend/Db/Adapter/Pdo/Pgsql.php | 333 +++++++++++++++++++++++++++ 1 file changed, 333 insertions(+) create mode 100644 library/vendor/Zend/Db/Adapter/Pdo/Pgsql.php (limited to 'library/vendor/Zend/Db/Adapter/Pdo/Pgsql.php') diff --git a/library/vendor/Zend/Db/Adapter/Pdo/Pgsql.php b/library/vendor/Zend/Db/Adapter/Pdo/Pgsql.php new file mode 100644 index 0000000..060ed28 --- /dev/null +++ b/library/vendor/Zend/Db/Adapter/Pdo/Pgsql.php @@ -0,0 +1,333 @@ + 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) + { + $sql = "SELECT + a.attnum, + n.nspname, + c.relname, + a.attname AS colname, + t.typname AS type, + a.atttypmod, + FORMAT_TYPE(a.atttypid, a.atttypmod) AS complete_type, + d.adsrc AS default_value, + a.attnotnull AS notnull, + a.attlen AS length, + co.contype, + ARRAY_TO_STRING(co.conkey, ',') AS conkey + FROM pg_attribute AS a + JOIN pg_class AS c ON a.attrelid = c.oid + JOIN pg_namespace AS n ON c.relnamespace = n.oid + JOIN pg_type AS t ON a.atttypid = t.oid + LEFT OUTER JOIN pg_constraint AS co ON (co.conrelid = c.oid + AND a.attnum = ANY(co.conkey) AND co.contype = 'p') + LEFT OUTER JOIN pg_attrdef AS d ON d.adrelid = c.oid AND d.adnum = a.attnum + WHERE a.attnum > 0 AND c.relname = ".$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 ($count <= 0) { + /** + * @see Zend_Db_Adapter_Exception + */ + throw new Zend_Db_Adapter_Exception("LIMIT argument count=$count is not valid"); + } + + $offset = intval($offset); + if ($offset < 0) { + /** + * @see Zend_Db_Adapter_Exception + */ + throw new Zend_Db_Adapter_Exception("LIMIT argument offset=$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); + } + +} -- cgit v1.2.3