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-rw-r--r--system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php359
1 files changed, 359 insertions, 0 deletions
diff --git a/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php
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index 000000000..45165213f
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+++ b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php
@@ -0,0 +1,359 @@
+<?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 or newer
+ *
+ * NOTICE OF LICENSE
+ *
+ * Licensed under the Open Software License version 3.0
+ *
+ * This source file is subject to the Open Software License (OSL 3.0) that is
+ * bundled with this package in the files license.txt / license.rst. It is
+ * also available through the world wide web at this URL:
+ * http://opensource.org/licenses/OSL-3.0
+ * 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
+ * licensing@ellislab.com so we can send you a copy immediately.
+ *
+ * @package CodeIgniter
+ * @author EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
+ * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ * @link http://codeigniter.com
+ * @since Version 3.0.0
+ * @filesource
+ */
+defined('BASEPATH') OR exit('No direct script access allowed');
+
+/**
+ * PDO PostgreSQL Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver {
+
+ /**
+ * Sub-driver
+ *
+ * @var string
+ */
+ public $subdriver = 'pgsql';
+
+ /**
+ * Database schema
+ *
+ * @var string
+ */
+ public $schema = 'public';
+
+ // --------------------------------------------------------------------
+
+ /**
+ * ORDER BY random keyword
+ *
+ * @var array
+ */
+ protected $_random_keyword = array('RANDOM()', 'RANDOM()');
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Class constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array $params
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'pgsql:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname);
+
+ empty($this->port) OR $this->dsn .= ';port='.$this->port;
+ empty($this->database) OR $this->dsn .= ';dbname='.$this->database;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Insert ID
+ *
+ * @param string $name
+ * @return int
+ */
+ public function insert_id($name = NULL)
+ {
+ if ($name === NULL && version_compare($this->version(), '8.1', '>='))
+ {
+ $query = $this->query('SELECT LASTVAL() AS ins_id');
+ $query = $query->row();
+ return $query->ins_id;
+ }
+
+ return $this->conn_id->lastInsertId($name);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * ORDER BY
+ *
+ * @param string $orderby
+ * @param string $direction ASC or DESC
+ * @param bool $escape
+ * @return object
+ */
+ public function order_by($orderby, $direction = '', $escape = NULL)
+ {
+ $direction = strtoupper(trim($direction));
+ if ($direction === 'RANDOM')
+ {
+ if ( ! is_float($orderby) && ctype_digit((string) $orderby))
+ {
+ $orderby = ($orderby > 1)
+ ? (float) '0.'.$orderby
+ : (float) $orderby;
+ }
+
+ if (is_float($orderby))
+ {
+ $this->simple_query('SET SEED '.$orderby);
+ }
+
+ $orderby = $this->_random_keyword[0];
+ $direction = '';
+ $escape = FALSE;
+ }
+
+ return parent::order_by($orderby, $direction, $escape);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool $prefix_limit
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = 'SELECT "table_name" FROM "information_schema"."tables" WHERE "table_schema" = \''.$this->schema."'";
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ return $sql.' AND "table_name" LIKE \''
+ .$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string $table
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SELECT "column_name" FROM "information_schema"."columns" WHERE "table_name" = '.$this->escape($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @param string $table
+ * @return string
+ */
+ protected function _field_data($table)
+ {
+ return 'SELECT * FROM '.$this->protect_identifiers($table).' LIMIT 1';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @param string $table
+ * @param array $values
+ * @return string
+ */
+ protected function _update($table, $values)
+ {
+ $this->qb_limit = FALSE;
+ $this->qb_orderby = array();
+ return parent::_update($table, $values);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update_Batch statement
+ *
+ * Generates a platform-specific batch update string from the supplied data
+ *
+ * @param string $table Table name
+ * @param array $values Update data
+ * @param string $index WHERE key
+ * @return string
+ */
+ protected function _update_batch($table, $values, $index)
+ {
+ $ids = array();
+ foreach ($values as $key => $val)
+ {
+ $ids[] = $val[$index];
+
+ foreach (array_keys($val) as $field)
+ {
+ if ($field !== $index)
+ {
+ $final[$field][] = 'WHEN '.$val[$index].' THEN '.$val[$field];
+ }
+ }
+ }
+
+ $cases = '';
+ foreach ($final as $k => $v)
+ {
+ $cases .= $k.' = (CASE '.$index."\n"
+ .implode("\n", $v)."\n"
+ .'ELSE '.$k.' END), ';
+ }
+
+ $this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE);
+
+ return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @param string $table
+ * @return string
+ */
+ protected function _delete($table)
+ {
+ $this->qb_limit = FALSE;
+ return parent::_delete($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * LIMIT
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @param string $sql SQL Query
+ * @return string
+ */
+ protected function _limit($sql)
+ {
+ return $sql.' LIMIT '.$this->qb_limit.($this->qb_offset ? ' OFFSET '.$this->qb_offset : '');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * WHERE, HAVING
+ *
+ * Called by where(), or_where(), having(), or_having()
+ *
+ * @param string 'qb_where' or 'qb_having'
+ * @param mixed
+ * @param mixed
+ * @param string
+ * @param bool
+ * @return object
+ */
+ protected function _wh($qb_key, $key, $value = NULL, $type = 'AND ', $escape = NULL)
+ {
+ $qb_cache_key = ($qb_key === 'qb_having') ? 'qb_cache_having' : 'qb_cache_where';
+
+ if ( ! is_array($key))
+ {
+ $key = array($key => $value);
+ }
+
+ // If the escape value was not set will will base it on the global setting
+ is_bool($escape) OR $escape = $this->_protect_identifiers;
+
+ foreach ($key as $k => $v)
+ {
+ $prefix = (count($this->$qb_key) === 0 && count($this->$qb_cache_key) === 0)
+ ? $this->_group_get_type('')
+ : $this->_group_get_type($type);
+
+ if (is_null($v) && ! $this->_has_operator($k))
+ {
+ // value appears not to have been set, assign the test to IS NULL
+ $k .= ' IS NULL';
+ }
+
+ if ( ! is_null($v))
+ {
+ if (is_bool($v))
+ {
+ $v = ' '.($v ? 'TRUE' : 'FALSE');
+ }
+ elseif ($escape === TRUE)
+ {
+ $v = ' '.(is_int($v) ? $v : $this->escape($v));
+ }
+
+ if ( ! $this->_has_operator($k))
+ {
+ $k .= ' = ';
+ }
+ }
+
+ $this->{$qb_key}[] = array('condition' => $prefix.$k.$v, 'escape' => $escape);
+ if ($this->qb_caching === TRUE)
+ {
+ $this->{$qb_cache_key}[] = array('condition' => $prefix.$k.$v, 'escape' => $escape);
+ $this->qb_cache_exists[] = substr($qb_key, 3);
+ }
+
+ }
+
+ return $this;
+ }
+
+}
+
+/* End of file pdo_pgsql_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php */ \ No newline at end of file
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-07-22 22:12:10 +0200