summaryrefslogtreecommitdiffstats
path: root/library/vendor/Zend/Db/Adapter/Pdo/Pgsql.php
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--library/vendor/Zend/Db/Adapter/Pdo/Pgsql.php333
1 files changed, 333 insertions, 0 deletions
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 @@
+<?php
+/**
+ * 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) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id$
+ */
+
+
+/**
+ * @see Zend_Db_Adapter_Pdo_Abstract
+ */
+
+
+/**
+ * Class for connecting to PostgreSQL databases and performing common operations.
+ *
+ * @category Zend
+ * @package Zend_Db
+ * @subpackage Adapter
+ * @copyright Copyright (c) 2005-2015 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)
+ {
+ $sql = "SELECT
+ a.attnum,
+ n.nspname,
+ c.relname,
+ a.attname AS colname,
+ t.typname AS type,
+ a.atttypmod,
+ FORMAT_TYPE(a.atttypid, a.atttypmod) AS complete_type,
+ d.adsrc AS default_value,
+ a.attnotnull AS notnull,
+ a.attlen AS length,
+ co.contype,
+ ARRAY_TO_STRING(co.conkey, ',') AS conkey
+ FROM pg_attribute AS a
+ JOIN pg_class AS c ON a.attrelid = c.oid
+ JOIN pg_namespace AS n ON c.relnamespace = n.oid
+ JOIN pg_type AS t ON a.atttypid = t.oid
+ LEFT OUTER JOIN pg_constraint AS co ON (co.conrelid = c.oid
+ AND a.attnum = ANY(co.conkey) AND co.contype = 'p')
+ LEFT OUTER JOIN pg_attrdef AS d ON d.adrelid = c.oid AND d.adnum = a.attnum
+ WHERE a.attnum > 0 AND c.relname = ".$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);
+ }
+
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-06 17:33:53 +0000