-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');\r
-/**\r
- * CodeIgniter\r
- *\r
- * An open source application development framework for PHP 4.3.2 or newer\r
- *\r
- * @package CodeIgniter\r
- * @author ExpressionEngine Dev Team\r
- * @copyright Copyright (c) 2008, EllisLab, Inc.\r
- * @license http://codeigniter.com/user_guide/license.html\r
- * @link http://codeigniter.com\r
- * @since Version 1.0\r
- * @filesource\r
- */\r
-\r
-// ------------------------------------------------------------------------\r
-\r
-/**\r
- * Postgre Database Adapter Class\r
- *\r
- * Note: _DB is an extender class that the app controller\r
- * creates dynamically based on whether the active record\r
- * class is being used or not.\r
- *\r
- * @package CodeIgniter\r
- * @subpackage Drivers\r
- * @category Database\r
- * @author ExpressionEngine Dev Team\r
- * @link http://codeigniter.com/user_guide/database/\r
- */\r
-class CI_DB_postgre_driver extends CI_DB {\r
-\r
- var $dbdriver = 'postgre';\r
- \r
- var $_escape_char = '"';\r
-\r
- /**\r
- * The syntax to count rows is slightly different across different\r
- * database engines, so this string appears in each driver and is\r
- * used for the count_all() and count_all_results() functions.\r
- */\r
- var $_count_string = "SELECT COUNT(*) AS ";\r
- var $_random_keyword = ' RANDOM()'; // database specific random keyword\r
-\r
- /**\r
- * Connection String\r
- *\r
- * @access private\r
- * @return string\r
- */ \r
- function _connect_string()\r
- {\r
- $components = array(\r
- 'hostname' => 'host',\r
- 'port' => 'port',\r
- 'database' => 'dbname',\r
- 'username' => 'user',\r
- 'password' => 'password'\r
- );\r
- \r
- $connect_string = "";\r
- foreach ($components as $key => $val)\r
- {\r
- if (isset($this->$key) && $this->$key != '')\r
- {\r
- $connect_string .= " $val=".$this->$key;\r
- }\r
- }\r
- return trim($connect_string);\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Non-persistent database connection\r
- *\r
- * @access private called by the base class\r
- * @return resource\r
- */ \r
- function db_connect()\r
- { \r
- return @pg_connect($this->_connect_string());\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Persistent database connection\r
- *\r
- * @access private called by the base class\r
- * @return resource\r
- */ \r
- function db_pconnect()\r
- {\r
- return @pg_pconnect($this->_connect_string());\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Select the database\r
- *\r
- * @access private called by the base class\r
- * @return resource\r
- */ \r
- function db_select()\r
- {\r
- // Not needed for Postgre so we'll return TRUE\r
- return TRUE;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Set client character set\r
- *\r
- * @access public\r
- * @param string\r
- * @param string\r
- * @return resource\r
- */\r
- function db_set_charset($charset, $collation)\r
- {\r
- // @todo - add support if needed\r
- return TRUE;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Version number query string\r
- *\r
- * @access public\r
- * @return string\r
- */\r
- function _version()\r
- {\r
- return "SELECT version() AS ver";\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Execute the query\r
- *\r
- * @access private called by the base class\r
- * @param string an SQL query\r
- * @return resource\r
- */ \r
- function _execute($sql)\r
- {\r
- $sql = $this->_prep_query($sql);\r
- return @pg_query($this->conn_id, $sql);\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Prep the query\r
- *\r
- * If needed, each database adapter can prep the query string\r
- *\r
- * @access private called by execute()\r
- * @param string an SQL query\r
- * @return string\r
- */ \r
- function _prep_query($sql)\r
- {\r
- return $sql;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Begin Transaction\r
- *\r
- * @access public\r
- * @return bool \r
- */ \r
- function trans_begin($test_mode = FALSE)\r
- {\r
- if ( ! $this->trans_enabled)\r
- {\r
- return TRUE;\r
- }\r
- \r
- // When transactions are nested we only begin/commit/rollback the outermost ones\r
- if ($this->_trans_depth > 0)\r
- {\r
- return TRUE;\r
- }\r
-\r
- // Reset the transaction failure flag.\r
- // If the $test_mode flag is set to TRUE transactions will be rolled back\r
- // even if the queries produce a successful result.\r
- $this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE;\r
-\r
- return @pg_exec($this->conn_id, "begin");\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Commit Transaction\r
- *\r
- * @access public\r
- * @return bool \r
- */ \r
- function trans_commit()\r
- {\r
- if ( ! $this->trans_enabled)\r
- {\r
- return TRUE;\r
- }\r
-\r
- // When transactions are nested we only begin/commit/rollback the outermost ones\r
- if ($this->_trans_depth > 0)\r
- {\r
- return TRUE;\r
- }\r
-\r
- return @pg_exec($this->conn_id, "commit");\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Rollback Transaction\r
- *\r
- * @access public\r
- * @return bool \r
- */ \r
- function trans_rollback()\r
- {\r
- if ( ! $this->trans_enabled)\r
- {\r
- return TRUE;\r
- }\r
-\r
- // When transactions are nested we only begin/commit/rollback the outermost ones\r
- if ($this->_trans_depth > 0)\r
- {\r
- return TRUE;\r
- }\r
-\r
- return @pg_exec($this->conn_id, "rollback");\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Escape String\r
- *\r
- * @access public\r
- * @param string\r
- * @return string\r
- */\r
- function escape_str($str) \r
- { \r
- return pg_escape_string($str);\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Affected Rows\r
- *\r
- * @access public\r
- * @return integer\r
- */\r
- function affected_rows()\r
- {\r
- return @pg_affected_rows($this->result_id);\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Insert ID\r
- *\r
- * @access public\r
- * @return integer\r
- */\r
- function insert_id()\r
- {\r
- $v = $this->_version();\r
- $v = $v['server'];\r
- \r
- $table = func_num_args() > 0 ? func_get_arg(0) : null;\r
- $column = func_num_args() > 1 ? func_get_arg(1) : null;\r
- \r
- if ($table == null && $v >= '8.1')\r
- {\r
- $sql='SELECT LASTVAL() as ins_id';\r
- }\r
- elseif ($table != null && $column != null && $v >= '8.0')\r
- {\r
- $sql = sprintf("SELECT pg_get_serial_sequence('%s','%s') as seq", $table, $column);\r
- $query = $this->query($sql);\r
- $row = $query->row();\r
- $sql = sprintf("SELECT CURRVAL('%s') as ins_id", $row->seq);\r
- }\r
- elseif ($table != null)\r
- {\r
- // seq_name passed in table parameter\r
- $sql = sprintf("SELECT CURRVAL('%s') as ins_id", $table);\r
- }\r
- else\r
- {\r
- return pg_last_oid($this->result_id);\r
- }\r
- $query = $this->query($sql);\r
- $row = $query->row();\r
- return $row->ins_id;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * "Count All" query\r
- *\r
- * Generates a platform-specific query string that counts all records in\r
- * the specified database\r
- *\r
- * @access public\r
- * @param string\r
- * @return string\r
- */\r
- function count_all($table = '')\r
- {\r
- if ($table == '')\r
- return '0';\r
-\r
- $query = $this->query($this->_count_string . $this->_protect_identifiers('numrows'). " FROM " . $this->_protect_identifiers($table, TRUE, NULL, FALSE));\r
- \r
- if ($query->num_rows() == 0)\r
- return '0';\r
-\r
- $row = $query->row();\r
- return $row->numrows;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Show table query\r
- *\r
- * Generates a platform-specific query string so that the table names can be fetched\r
- *\r
- * @access private\r
- * @param boolean\r
- * @return string\r
- */\r
- function _list_tables($prefix_limit = FALSE)\r
- { \r
- $sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'"; \r
- \r
- if ($prefix_limit !== FALSE AND $this->dbprefix != '')\r
- {\r
- $sql .= " AND table_name LIKE '".$this->dbprefix."%'";\r
- }\r
- \r
- return $sql;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Show column query\r
- *\r
- * Generates a platform-specific query string so that the column names can be fetched\r
- *\r
- * @access public\r
- * @param string the table name\r
- * @return string\r
- */\r
- function _list_columns($table = '')\r
- {\r
- return "SELECT column_name FROM information_schema.columns WHERE table_name ='".$table."'";\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Field data query\r
- *\r
- * Generates a platform-specific query so that the column data can be retrieved\r
- *\r
- * @access public\r
- * @param string the table name\r
- * @return object\r
- */\r
- function _field_data($table)\r
- {\r
- return "SELECT * FROM ".$table." LIMIT 1";\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * The error message string\r
- *\r
- * @access private\r
- * @return string\r
- */\r
- function _error_message()\r
- {\r
- return pg_last_error($this->conn_id);\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * The error message number\r
- *\r
- * @access private\r
- * @return integer\r
- */\r
- function _error_number()\r
- {\r
- return '';\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Escape the SQL Identifiers\r
- *\r
- * This function escapes column and table names\r
- *\r
- * @access private\r
- * @param string\r
- * @return string\r
- */\r
- function _escape_identifiers($item)\r
- {\r
- if ($this->_escape_char == '')\r
- {\r
- return $item;\r
- }\r
- \r
- if (strpos($item, '.') !== FALSE)\r
- {\r
- $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char; \r
- }\r
- else\r
- {\r
- $str = $this->_escape_char.$item.$this->_escape_char;\r
- }\r
- \r
- // remove duplicates if the user already included the escape\r
- return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * From Tables\r
- *\r
- * This function implicitly groups FROM tables so there is no confusion\r
- * about operator precedence in harmony with SQL standards\r
- *\r
- * @access public\r
- * @param type\r
- * @return type\r
- */\r
- function _from_tables($tables)\r
- {\r
- if ( ! is_array($tables))\r
- {\r
- $tables = array($tables);\r
- }\r
- \r
- return implode(', ', $tables);\r
- }\r
-\r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Insert statement\r
- *\r
- * Generates a platform-specific insert string from the supplied data\r
- *\r
- * @access public\r
- * @param string the table name\r
- * @param array the insert keys\r
- * @param array the insert values\r
- * @return string\r
- */\r
- function _insert($table, $keys, $values)\r
- { \r
- return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Update statement\r
- *\r
- * Generates a platform-specific update string from the supplied data\r
- *\r
- * @access public\r
- * @param string the table name\r
- * @param array the update data\r
- * @param array the where clause\r
- * @param array the orderby clause\r
- * @param array the limit clause\r
- * @return string\r
- */\r
- function _update($table, $values, $where, $orderby = array(), $limit = FALSE)\r
- {\r
- foreach($values as $key => $val)\r
- {\r
- $valstr[] = $key." = ".$val;\r
- }\r
- \r
- $limit = ( ! $limit) ? '' : ' LIMIT '.$limit;\r
- \r
- $orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):'';\r
- \r
- $sql = "UPDATE ".$table." SET ".implode(', ', $valstr);\r
-\r
- $sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : '';\r
-\r
- $sql .= $orderby.$limit;\r
- \r
- return $sql;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Truncate statement\r
- *\r
- * Generates a platform-specific truncate string from the supplied data\r
- * If the database does not support the truncate() command\r
- * This function maps to "DELETE FROM table"\r
- *\r
- * @access public\r
- * @param string the table name\r
- * @return string\r
- */ \r
- function _truncate($table)\r
- {\r
- return "TRUNCATE ".$table;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Delete statement\r
- *\r
- * Generates a platform-specific delete string from the supplied data\r
- *\r
- * @access public\r
- * @param string the table name\r
- * @param array the where clause\r
- * @param string the limit clause\r
- * @return string\r
- */ \r
- function _delete($table, $where = array(), $like = array(), $limit = FALSE)\r
- {\r
- $conditions = '';\r
-\r
- if (count($where) > 0 OR count($like) > 0)\r
- {\r
- $conditions = "\nWHERE ";\r
- $conditions .= implode("\n", $this->ar_where);\r
-\r
- if (count($where) > 0 && count($like) > 0)\r
- {\r
- $conditions .= " AND ";\r
- }\r
- $conditions .= implode("\n", $like);\r
- }\r
-\r
- $limit = ( ! $limit) ? '' : ' LIMIT '.$limit;\r
- \r
- return "DELETE FROM ".$table.$conditions.$limit;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
- /**\r
- * Limit string\r
- *\r
- * Generates a platform-specific LIMIT clause\r
- *\r
- * @access public\r
- * @param string the sql query string\r
- * @param integer the number of rows to limit the query to\r
- * @param integer the offset value\r
- * @return string\r
- */\r
- function _limit($sql, $limit, $offset)\r
- { \r
- $sql .= "LIMIT ".$limit;\r
- \r
- if ($offset > 0)\r
- {\r
- $sql .= " OFFSET ".$offset;\r
- }\r
- \r
- return $sql;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Close DB Connection\r
- *\r
- * @access public\r
- * @param resource\r
- * @return void\r
- */\r
- function _close($conn_id)\r
- {\r
- @pg_close($conn_id);\r
- }\r
-\r
-\r
-}\r
-\r
-\r
-/* End of file postgre_driver.php */\r
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author ExpressionEngine Dev Team
+ * @copyright Copyright (c) 2008, EllisLab, Inc.
+ * @license http://codeigniter.com/user_guide/license.html
+ * @link http://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 ExpressionEngine Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_postgre_driver extends CI_DB {
+
+ var $dbdriver = 'postgre';
+
+ var $_escape_char = '"';
+
+ /**
+ * The syntax to count rows is slightly different across different
+ * database engines, so this string appears in each driver and is
+ * used for the count_all() and count_all_results() functions.
+ */
+ var $_count_string = "SELECT COUNT(*) AS ";
+ var $_random_keyword = ' RANDOM()'; // database specific random keyword
+
+ /**
+ * Connection String
+ *
+ * @access private
+ * @return string
+ */
+ function _connect_string()
+ {
+ $components = array(
+ 'hostname' => 'host',
+ 'port' => 'port',
+ 'database' => 'dbname',
+ 'username' => 'user',
+ 'password' => 'password'
+ );
+
+ $connect_string = "";
+ foreach ($components as $key => $val)
+ {
+ if (isset($this->$key) && $this->$key != '')
+ {
+ $connect_string .= " $val=".$this->$key;
+ }
+ }
+ return trim($connect_string);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Non-persistent database connection
+ *
+ * @access private called by the base class
+ * @return resource
+ */
+ function db_connect()
+ {
+ return @pg_connect($this->_connect_string());
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Persistent database connection
+ *
+ * @access private called by the base class
+ * @return resource
+ */
+ function db_pconnect()
+ {
+ return @pg_pconnect($this->_connect_string());
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * 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;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set client character set
+ *
+ * @access public
+ * @param string
+ * @param string
+ * @return resource
+ */
+ function db_set_charset($charset, $collation)
+ {
+ // @todo - add support if needed
+ return TRUE;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Version number query string
+ *
+ * @access public
+ * @return string
+ */
+ function _version()
+ {
+ return "SELECT version() AS ver";
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Execute the query
+ *
+ * @access private called by the base class
+ * @param string an SQL query
+ * @return resource
+ */
+ function _execute($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($str);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Affected Rows
+ *
+ * @access public
+ * @return integer
+ */
+ function affected_rows()
+ {
+ return @pg_affected_rows($this->result_id);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Insert ID
+ *
+ * @access public
+ * @return integer
+ */
+ function insert_id()
+ {
+ $v = $this->_version();
+ $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 = $this->query($this->_count_string . $this->_protect_identifiers('numrows'). " FROM " . $this->_protect_identifiers($table, TRUE, NULL, FALSE));
+
+ if ($query->num_rows() == 0)
+ return '0';
+
+ $row = $query->row();
+ return $row->numrows;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @access private
+ * @param boolean
+ * @return string
+ */
+ function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'";
+
+ if ($prefix_limit !== FALSE AND $this->dbprefix != '')
+ {
+ $sql .= " AND table_name LIKE '".$this->dbprefix."%'";
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @access public
+ * @param string the table name
+ * @return string
+ */
+ function _list_columns($table = '')
+ {
+ return "SELECT column_name FROM information_schema.columns WHERE table_name ='".$table."'";
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @access public
+ * @param string the table name
+ * @return object
+ */
+ function _field_data($table)
+ {
+ return "SELECT * FROM ".$table." LIMIT 1";
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * The error message string
+ *
+ * @access private
+ * @return string
+ */
+ function _error_message()
+ {
+ return pg_last_error($this->conn_id);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * The error message number
+ *
+ * @access private
+ * @return integer
+ */
+ function _error_number()
+ {
+ return '';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Escape the SQL Identifiers
+ *
+ * This function escapes column and table names
+ *
+ * @access private
+ * @param string
+ * @return string
+ */
+ function _escape_identifiers($item)
+ {
+ if ($this->_escape_char == '')
+ {
+ return $item;
+ }
+
+ if (strpos($item, '.') !== FALSE)
+ {
+ $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char;
+ }
+ else
+ {
+ $str = $this->_escape_char.$item.$this->_escape_char;
+ }
+
+ // remove duplicates if the user already included the escape
+ return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From Tables
+ *
+ * This function implicitly groups FROM tables so there is no confusion
+ * about operator precedence in harmony with SQL standards
+ *
+ * @access public
+ * @param type
+ * @return type
+ */
+ function _from_tables($tables)
+ {
+ if ( ! is_array($tables))
+ {
+ $tables = array($tables);
+ }
+
+ return implode(', ', $tables);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Insert statement
+ *
+ * Generates a platform-specific insert string from the supplied data
+ *
+ * @access public
+ * @param string the table name
+ * @param array the insert keys
+ * @param array the insert values
+ * @return string
+ */
+ function _insert($table, $keys, $values)
+ {
+ return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @access public
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @param array the orderby clause
+ * @param array the limit clause
+ * @return string
+ */
+ function _update($table, $values, $where, $orderby = array(), $limit = FALSE)
+ {
+ foreach($values as $key => $val)
+ {
+ $valstr[] = $key." = ".$val;
+ }
+
+ $limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
+
+ $orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):'';
+
+ $sql = "UPDATE ".$table." SET ".implode(', ', $valstr);
+
+ $sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : '';
+
+ $sql .= $orderby.$limit;
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Truncate statement
+ *
+ * Generates a platform-specific truncate string from the supplied data
+ * If the database does not support the truncate() command
+ * This function maps to "DELETE FROM table"
+ *
+ * @access public
+ * @param string the table name
+ * @return string
+ */
+ function _truncate($table)
+ {
+ return "TRUNCATE ".$table;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @access public
+ * @param string the table name
+ * @param array the where clause
+ * @param string the limit clause
+ * @return string
+ */
+ function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ {
+ $conditions = '';
+
+ if (count($where) > 0 OR count($like) > 0)
+ {
+ $conditions = "\nWHERE ";
+ $conditions .= implode("\n", $this->ar_where);
+
+ if (count($where) > 0 && count($like) > 0)
+ {
+ $conditions .= " AND ";
+ }
+ $conditions .= implode("\n", $like);
+ }
+
+ $limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
+
+ return "DELETE FROM ".$table.$conditions.$limit;
+ }
+
+ // --------------------------------------------------------------------
+ /**
+ * Limit string
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @access public
+ * @param string the sql query string
+ * @param integer the number of rows to limit the query to
+ * @param integer the offset value
+ * @return string
+ */
+ function _limit($sql, $limit, $offset)
+ {
+ $sql .= "LIMIT ".$limit;
+
+ if ($offset > 0)
+ {
+ $sql .= " OFFSET ".$offset;
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Close DB Connection
+ *
+ * @access public
+ * @param resource
+ * @return void
+ */
+ function _close($conn_id)
+ {
+ @pg_close($conn_id);
+ }
+
+
+}
+
+
+/* End of file postgre_driver.php */
/* Location: ./system/database/drivers/postgre/postgre_driver.php */
\ No newline at end of file
git://git.onelab.eu / www-register-wizard.git / blobdiff