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-rw-r--r--system/drivers/DB_postgre.php581
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diff --git a/system/drivers/DB_postgre.php b/system/drivers/DB_postgre.php
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--- a/system/drivers/DB_postgre.php
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-<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
-/**
- * Code Igniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package CodeIgniter
- * @author Rick Ellis
- * @copyright Copyright (c) 2006, pMachine, Inc.
- * @license http://www.codeignitor.com/user_guide/license.html
- * @link http://www.codeigniter.com
- * @since Version 1.0
- * @filesource
- */
-
-// ------------------------------------------------------------------------
-
-/**
- * Postgre Database Adapter Class
- *
- * Note: _DB is an extender class that the app controller
- * creates dynamically based on whether the active record
- * class is being used or not.
- *
- * @package CodeIgniter
- * @subpackage Drivers
- * @category Database
- * @author Rick Ellis
- * @link http://www.codeigniter.com/user_guide/libraries/database/
- */
-class CI_DB_postgre extends CI_DB {
-
- /**
- * Non-persistent database connection
- *
- * @access private called by the base class
- * @return resource
- */
- function db_connect()
- {
- $port = ($this->port == '') ? '' : " port=".$this->port;
-
- return pg_connect("host=".$this->hostname.$port." dbname=".$this->database." user=".$this->username." password=".$this->password);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Persistent database connection
- *
- * @access private called by the base class
- * @return resource
- */
- function db_pconnect()
- {
- $port = ($this->port == '') ? '' : " port=".$this->port;
-
- return pg_pconnect("host=".$this->hostname.$port." dbname=".$this->database." user=".$this->username." password=".$this->password);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Select the database
- *
- * @access private called by the base class
- * @return resource
- */
- function db_select()
- {
- // Not needed for Postgre so we'll return TRUE
- return TRUE;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Execute the query
- *
- * @access private called by the base class
- * @param string an SQL query
- * @return resource
- */
- function _execute($sql)
- {
- $sql = $this->_prep_query($sql);
- return @pg_query($this->conn_id, $sql);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Prep the query
- *
- * If needed, each database adapter can prep the query string
- *
- * @access private called by execute()
- * @param string an SQL query
- * @return string
- */
- function _prep_query($sql)
- {
- return $sql;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Begin Transaction
- *
- * @access public
- * @return bool
- */
- function trans_begin($test_mode = FALSE)
- {
- if ( ! $this->trans_enabled)
- {
- return TRUE;
- }
-
- // When transactions are nested we only begin/commit/rollback the outermost ones
- if ($this->_trans_depth > 0)
- {
- return TRUE;
- }
-
- // Reset the transaction failure flag.
- // If the $test_mode flag is set to TRUE transactions will be rolled back
- // even if the queries produce a successful result.
- $this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE;
-
- return @pg_exec($this->conn_id, "begin");
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Commit Transaction
- *
- * @access public
- * @return bool
- */
- function trans_commit()
- {
- if ( ! $this->trans_enabled)
- {
- return TRUE;
- }
-
- // When transactions are nested we only begin/commit/rollback the outermost ones
- if ($this->_trans_depth > 0)
- {
- return TRUE;
- }
-
- return @pg_exec($this->conn_id, "commit");
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Rollback Transaction
- *
- * @access public
- * @return bool
- */
- function trans_rollback()
- {
- if ( ! $this->trans_enabled)
- {
- return TRUE;
- }
-
- // When transactions are nested we only begin/commit/rollback the outermost ones
- if ($this->_trans_depth > 0)
- {
- return TRUE;
- }
-
- return @pg_exec($this->conn_id, "rollback");
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Escape String
- *
- * @access public
- * @param string
- * @return string
- */
- function escape_str($str)
- {
- return pg_escape_string($str);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Close DB Connection
- *
- * @access public
- * @param resource
- * @return void
- */
- function destroy($conn_id)
- {
- pg_close($conn_id);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Affected Rows
- *
- * @access public
- * @return integer
- */
- function affected_rows()
- {
- return @pg_affected_rows($this->result_id);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Insert ID
- *
- * @access public
- * @return integer
- */
- function insert_id()
- {
- $v = pg_version($this->conn_id);
- $v = $v['server'];
-
- $table = func_num_args() > 0 ? func_get_arg(0) : null;
- $column = func_num_args() > 1 ? func_get_arg(1) : null;
-
- if ($table == null && $v >= '8.1')
- {
- $sql='SELECT LASTVAL() as ins_id';
- }
- elseif ($table != null && $column != null && $v >= '8.0')
- {
- $sql = sprintf("SELECT pg_get_serial_sequence('%s','%s') as seq", $table, $column);
- $query = $this->query($sql);
- $row = $query->row();
- $sql = sprintf("SELECT CURRVAL('%s') as ins_id", $row->seq);
- }
- elseif ($table != null)
- {
- // seq_name passed in table parameter
- $sql = sprintf("SELECT CURRVAL('%s') as ins_id", $table);
- }
- else
- {
- return pg_last_oid($this->result_id);
- }
- $query = $this->query($sql);
- $row = $query->row();
- return $row->ins_id;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * "Count All" query
- *
- * Generates a platform-specific query string that counts all records in
- * the specified database
- *
- * @access public
- * @param string
- * @return string
- */
- function count_all($table = '')
- {
- if ($table == '')
- return '0';
-
- $query = $this->query('SELECT COUNT(*) AS numrows FROM "'.$this->dbprefix.$table.'"');
-
- if ($query->num_rows() == 0)
- return '0';
-
- $row = $query->row();
- return $row->numrows;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * The error message string
- *
- * @access public
- * @return string
- */
- function error_message()
- {
- return pg_last_error($this->conn_id);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * The error message number
- *
- * @access public
- * @return integer
- */
- function error_number()
- {
- return '';
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Escape Table Name
- *
- * This function adds backticks if the table name has a period
- * in it. Some DBs will get cranky unless periods are escaped.
- *
- * @access public
- * @param string the table name
- * @return string
- */
- function escape_table($table)
- {
- if (stristr($table, '.'))
- {
- $table = '"'.preg_replace("/\./", '"."', $table).'"';
- }
-
- return $table;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Field data query
- *
- * Generates a platform-specific query so that the column data can be retrieved
- *
- * @access public
- * @param string the table name
- * @return object
- */
- function _field_data($table)
- {
- $sql = "SELECT * FROM ".$this->escape_table($table)." LIMIT 1";
- $query = $this->query($sql);
- return $query->field_data();
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Insert statement
- *
- * Generates a platform-specific insert string from the supplied data
- *
- * @access public
- * @param string the table name
- * @param array the insert keys
- * @param array the insert values
- * @return string
- */
- function _insert($table, $keys, $values)
- {
- return "INSERT INTO ".$this->escape_table($table)." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Update statement
- *
- * Generates a platform-specific update string from the supplied data
- *
- * @access public
- * @param string the table name
- * @param array the update data
- * @param array the where clause
- * @return string
- */
- function _update($table, $values, $where)
- {
- foreach($values as $key => $val)
- {
- $valstr[] = $key." = ".$val;
- }
-
- return "UPDATE ".$this->escape_table($table)." SET ".implode(', ', $valstr)." WHERE ".implode(" ", $where);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Delete statement
- *
- * Generates a platform-specific delete string from the supplied data
- *
- * @access public
- * @param string the table name
- * @param array the where clause
- * @return string
- */
- function _delete($table, $where)
- {
- return "DELETE FROM ".$this->escape_table($table)." WHERE ".implode(" ", $where);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Version number query string
- *
- * @access public
- * @return string
- */
- function _version()
- {
- return "SELECT version() AS ver";
- }
-
- /**
- * Show table query
- *
- * Generates a platform-specific query string so that the table names can be fetched
- *
- * @access public
- * @return string
- */
- function _show_tables()
- {
- return "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'";
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Show columnn query
- *
- * Generates a platform-specific query string so that the column names can be fetched
- *
- * @access public
- * @param string the table name
- * @return string
- */
- function _show_columns($table = '')
- {
- return "SELECT column_name FROM information_schema.columns WHERE table_name ='".$this->escape_table($table)."'";
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Limit string
- *
- * Generates a platform-specific LIMIT clause
- *
- * @access public
- * @param string the sql query string
- * @param integer the number of rows to limit the query to
- * @param integer the offset value
- * @return string
- */
- function _limit($sql, $limit, $offset)
- {
- $sql .= "LIMIT ".$limit;
-
- if ($offset > 0)
- {
- $sql .= " OFFSET ".$offset;
- }
-
- return $sql;
- }
-
-}
-
-
-
-/**
- * Postgres Result Class
- *
- * This class extends the parent result class: CI_DB_result
- *
- * @category Database
- * @author Rick Ellis
- * @link http://www.codeigniter.com/user_guide/libraries/database/
- */
-class CI_DB_postgre_result extends CI_DB_result {
-
- /**
- * Number of rows in the result set
- *
- * @access public
- * @return integer
- */
- function num_rows()
- {
- return @pg_num_rows($this->result_id);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Number of fields in the result set
- *
- * @access public
- * @return integer
- */
- function num_fields()
- {
- return @pg_num_fields($this->result_id);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Field data
- *
- * Generates an array of objects containing field meta-data
- *
- * @access public
- * @return array
- */
- function field_data()
- {
- $retval = array();
- for ($i = 0; $i < $this->num_fields(); $i++)
- {
- $F = new stdClass();
- $F->name = pg_field_name($this->result_id, $i);
- $F->type = pg_field_type($this->result_id, $i);
- $F->max_length = pg_field_size($this->result_id, $i);
- $F->primary_key = $i == 0;
- $F->default = '';
-
- $retval[] = $F;
- }
-
- return $retval;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Result - associative array
- *
- * Returns the result set as an array
- *
- * @access private
- * @return array
- */
- function _fetch_assoc()
- {
- return pg_fetch_assoc($this->result_id);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Result - object
- *
- * Returns the result set as an object
- *
- * @access private
- * @return object
- */
- function _fetch_object()
- {
- return pg_fetch_object($this->result_id);
- }
-
-}
-
-?> \ No newline at end of file
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-24 17:41:31 +0100