summaryrefslogtreecommitdiff
path: root/system/libraries/drivers/Database/Pgsql.php
diff options
context:
space:
mode:
Diffstat (limited to 'system/libraries/drivers/Database/Pgsql.php')
-rw-r--r--system/libraries/drivers/Database/Pgsql.php538
1 files changed, 0 insertions, 538 deletions
diff --git a/system/libraries/drivers/Database/Pgsql.php b/system/libraries/drivers/Database/Pgsql.php
deleted file mode 100644
index c53c8439..00000000
--- a/system/libraries/drivers/Database/Pgsql.php
+++ /dev/null
@@ -1,538 +0,0 @@
-<?php defined('SYSPATH') OR die('No direct access allowed.');
-/**
- * PostgreSQL 8.1+ Database Driver
- *
- * $Id: Pgsql.php 4344 2009-05-11 16:41:39Z zombor $
- *
- * @package Core
- * @author Kohana Team
- * @copyright (c) 2007-2008 Kohana Team
- * @license http://kohanaphp.com/license.html
- */
-class Database_Pgsql_Driver extends Database_Driver {
-
- // Database connection link
- protected $link;
- protected $db_config;
-
- /**
- * Sets the config for the class.
- *
- * @param array database configuration
- */
- public function __construct($config)
- {
- $this->db_config = $config;
-
- Kohana::log('debug', 'PgSQL Database Driver Initialized');
- }
-
- public function connect()
- {
- // Check if link already exists
- if (is_resource($this->link))
- return $this->link;
-
- // Import the connect variables
- extract($this->db_config['connection']);
-
- // Persistent connections enabled?
- $connect = ($this->db_config['persistent'] == TRUE) ? 'pg_pconnect' : 'pg_connect';
-
- // Build the connection info
- $port = isset($port) ? 'port=\''.$port.'\'' : '';
- $host = isset($host) ? 'host=\''.$host.'\' '.$port : ''; // if no host, connect with the socket
-
- $connection_string = $host.' dbname=\''.$database.'\' user=\''.$user.'\' password=\''.$pass.'\'';
- // Make the connection and select the database
- if ($this->link = $connect($connection_string))
- {
- if ($charset = $this->db_config['character_set'])
- {
- echo $this->set_charset($charset);
- }
-
- // Clear password after successful connect
- $this->db_config['connection']['pass'] = NULL;
-
- return $this->link;
- }
-
- return FALSE;
- }
-
- public function query($sql)
- {
- // Only cache if it's turned on, and only cache if it's not a write statement
- if ($this->db_config['cache'] AND ! preg_match('#\b(?:INSERT|UPDATE|SET)\b#i', $sql))
- {
- $hash = $this->query_hash($sql);
-
- if ( ! isset($this->query_cache[$hash]))
- {
- // Set the cached object
- $this->query_cache[$hash] = new Pgsql_Result(pg_query($this->link, $sql), $this->link, $this->db_config['object'], $sql);
- }
- else
- {
- // Rewind cached result
- $this->query_cache[$hash]->rewind();
- }
-
- return $this->query_cache[$hash];
- }
-
- // Suppress warning triggered when a database error occurs (e.g., a constraint violation)
- return new Pgsql_Result(@pg_query($this->link, $sql), $this->link, $this->db_config['object'], $sql);
- }
-
- public function set_charset($charset)
- {
- $this->query('SET client_encoding TO '.pg_escape_string($this->link, $charset));
- }
-
- public function escape_table($table)
- {
- if (!$this->db_config['escape'])
- return $table;
-
- return '"'.str_replace('.', '"."', $table).'"';
- }
-
- public function escape_column($column)
- {
- if (!$this->db_config['escape'])
- return $column;
-
- if ($column == '*')
- return $column;
-
- // This matches any functions we support to SELECT.
- if ( preg_match('/(avg|count|sum|max|min)\(\s*(.*)\s*\)(\s*as\s*(.+)?)?/i', $column, $matches))
- {
- if ( count($matches) == 3)
- {
- return $matches[1].'('.$this->escape_column($matches[2]).')';
- }
- else if ( count($matches) == 5)
- {
- return $matches[1].'('.$this->escape_column($matches[2]).') AS '.$this->escape_column($matches[2]);
- }
- }
-
- // This matches any modifiers we support to SELECT.
- if ( ! preg_match('/\b(?:all|distinct)\s/i', $column))
- {
- if (stripos($column, ' AS ') !== FALSE)
- {
- // Force 'AS' to uppercase
- $column = str_ireplace(' AS ', ' AS ', $column);
-
- // Runs escape_column on both sides of an AS statement
- $column = array_map(array($this, __FUNCTION__), explode(' AS ', $column));
-
- // Re-create the AS statement
- return implode(' AS ', $column);
- }
-
- return preg_replace('/[^.*]+/', '"$0"', $column);
- }
-
- $parts = explode(' ', $column);
- $column = '';
-
- for ($i = 0, $c = count($parts); $i < $c; $i++)
- {
- // The column is always last
- if ($i == ($c - 1))
- {
- $column .= preg_replace('/[^.*]+/', '"$0"', $parts[$i]);
- }
- else // otherwise, it's a modifier
- {
- $column .= $parts[$i].' ';
- }
- }
- return $column;
- }
-
- public function regex($field, $match, $type, $num_regexs)
- {
- $prefix = ($num_regexs == 0) ? '' : $type;
-
- return $prefix.' '.$this->escape_column($field).' ~* \''.$this->escape_str($match).'\'';
- }
-
- public function notregex($field, $match, $type, $num_regexs)
- {
- $prefix = $num_regexs == 0 ? '' : $type;
-
- return $prefix.' '.$this->escape_column($field).' !~* \''.$this->escape_str($match) . '\'';
- }
-
- public function limit($limit, $offset = 0)
- {
- return 'LIMIT '.$limit.' OFFSET '.$offset;
- }
-
- public function compile_select($database)
- {
- $sql = ($database['distinct'] == TRUE) ? 'SELECT DISTINCT ' : 'SELECT ';
- $sql .= (count($database['select']) > 0) ? implode(', ', $database['select']) : '*';
-
- if (count($database['from']) > 0)
- {
- $sql .= "\nFROM ";
- $sql .= implode(', ', $database['from']);
- }
-
- if (count($database['join']) > 0)
- {
- foreach($database['join'] AS $join)
- {
- $sql .= "\n".$join['type'].'JOIN '.implode(', ', $join['tables']).' ON '.$join['conditions'];
- }
- }
-
- if (count($database['where']) > 0)
- {
- $sql .= "\nWHERE ";
- }
-
- $sql .= implode("\n", $database['where']);
-
- if (count($database['groupby']) > 0)
- {
- $sql .= "\nGROUP BY ";
- $sql .= implode(', ', $database['groupby']);
- }
-
- if (count($database['having']) > 0)
- {
- $sql .= "\nHAVING ";
- $sql .= implode("\n", $database['having']);
- }
-
- if (count($database['orderby']) > 0)
- {
- $sql .= "\nORDER BY ";
- $sql .= implode(', ', $database['orderby']);
- }
-
- if (is_numeric($database['limit']))
- {
- $sql .= "\n";
- $sql .= $this->limit($database['limit'], $database['offset']);
- }
-
- return $sql;
- }
-
- public function escape_str($str)
- {
- if (!$this->db_config['escape'])
- return $str;
-
- is_resource($this->link) or $this->connect();
-
- return pg_escape_string($this->link, $str);
- }
-
- public function list_tables()
- {
- $sql = 'SELECT table_schema || \'.\' || table_name FROM information_schema.tables WHERE table_schema NOT IN (\'pg_catalog\', \'information_schema\')';
- $result = $this->query($sql)->result(FALSE, PGSQL_ASSOC);
-
- $retval = array();
- foreach ($result as $row)
- {
- $retval[] = current($row);
- }
-
- return $retval;
- }
-
- public function show_error()
- {
- return pg_last_error($this->link);
- }
-
- public function list_fields($table)
- {
- $result = NULL;
-
- foreach ($this->field_data($table) as $row)
- {
- // Make an associative array
- $result[$row->column_name] = $this->sql_type($row->data_type);
-
- if (!strncmp($row->column_default, 'nextval(', 8))
- {
- $result[$row->column_name]['sequenced'] = TRUE;
- }
-
- if ($row->is_nullable === 'YES')
- {
- $result[$row->column_name]['null'] = TRUE;
- }
- }
-
- if (!isset($result))
- throw new Kohana_Database_Exception('database.table_not_found', $table);
-
- return $result;
- }
-
- public function field_data($table)
- {
- // http://www.postgresql.org/docs/8.3/static/infoschema-columns.html
- $result = $this->query('
- SELECT column_name, column_default, is_nullable, data_type, udt_name,
- character_maximum_length, numeric_precision, numeric_precision_radix, numeric_scale
- FROM information_schema.columns
- WHERE table_name = \''. $this->escape_str($table) .'\'
- ORDER BY ordinal_position
- ');
-
- return $result->result_array(TRUE);
- }
-
-} // End Database_Pgsql_Driver Class
-
-/**
- * PostgreSQL Result
- */
-class Pgsql_Result extends Database_Result {
-
- // Data fetching types
- protected $fetch_type = 'pgsql_fetch_object';
- protected $return_type = PGSQL_ASSOC;
-
- /**
- * Sets up the result variables.
- *
- * @param resource query result
- * @param resource database link
- * @param boolean return objects or arrays
- * @param string SQL query that was run
- */
- public function __construct($result, $link, $object = TRUE, $sql)
- {
- $this->link = $link;
- $this->result = $result;
-
- // If the query is a resource, it was a SELECT, SHOW, DESCRIBE, EXPLAIN query
- if (is_resource($result))
- {
- // Its an DELETE, INSERT, REPLACE, or UPDATE query
- if (preg_match('/^(?:delete|insert|replace|update)\b/iD', trim($sql), $matches))
- {
- $this->insert_id = (strtolower($matches[0]) == 'insert') ? $this->insert_id() : FALSE;
- $this->total_rows = pg_affected_rows($this->result);
- }
- else
- {
- $this->current_row = 0;
- $this->total_rows = pg_num_rows($this->result);
- $this->fetch_type = ($object === TRUE) ? 'pg_fetch_object' : 'pg_fetch_array';
- }
- }
- else
- {
- throw new Kohana_Database_Exception('database.error', pg_last_error().' - '.$sql);
- }
-
- // Set result type
- $this->result($object);
-
- // Store the SQL
- $this->sql = $sql;
- }
-
- /**
- * Magic __destruct function, frees the result.
- */
- public function __destruct()
- {
- if (is_resource($this->result))
- {
- pg_free_result($this->result);
- }
- }
-
- public function result($object = TRUE, $type = PGSQL_ASSOC)
- {
- $this->fetch_type = ((bool) $object) ? 'pg_fetch_object' : 'pg_fetch_array';
-
- // This check has to be outside the previous statement, because we do not
- // know the state of fetch_type when $object = NULL
- // NOTE - The class set by $type must be defined before fetching the result,
- // autoloading is disabled to save a lot of stupid overhead.
- if ($this->fetch_type == 'pg_fetch_object')
- {
- $this->return_type = (is_string($type) AND Kohana::auto_load($type)) ? $type : 'stdClass';
- }
- else
- {
- $this->return_type = $type;
- }
-
- return $this;
- }
-
- public function as_array($object = NULL, $type = PGSQL_ASSOC)
- {
- return $this->result_array($object, $type);
- }
-
- public function result_array($object = NULL, $type = PGSQL_ASSOC)
- {
- $rows = array();
-
- if (is_string($object))
- {
- $fetch = $object;
- }
- elseif (is_bool($object))
- {
- if ($object === TRUE)
- {
- $fetch = 'pg_fetch_object';
-
- // NOTE - The class set by $type must be defined before fetching the result,
- // autoloading is disabled to save a lot of stupid overhead.
- $type = (is_string($type) AND Kohana::auto_load($type)) ? $type : 'stdClass';
- }
- else
- {
- $fetch = 'pg_fetch_array';
- }
- }
- else
- {
- // Use the default config values
- $fetch = $this->fetch_type;
-
- if ($fetch == 'pg_fetch_object')
- {
- $type = (is_string($type) AND Kohana::auto_load($type)) ? $type : 'stdClass';
- }
- }
-
- if ($this->total_rows)
- {
- pg_result_seek($this->result, 0);
-
- while ($row = $fetch($this->result, NULL, $type))
- {
- $rows[] = $row;
- }
- }
-
- return $rows;
- }
-
- public function insert_id()
- {
- if ($this->insert_id === NULL)
- {
- $query = 'SELECT LASTVAL() AS insert_id';
-
- // Disable error reporting for this, just to silence errors on
- // tables that have no serial column.
- $ER = error_reporting(0);
-
- $result = pg_query($this->link, $query);
- $insert_id = pg_fetch_array($result, NULL, PGSQL_ASSOC);
-
- $this->insert_id = $insert_id['insert_id'];
-
- // Reset error reporting
- error_reporting($ER);
- }
-
- return $this->insert_id;
- }
-
- public function seek($offset)
- {
- if ($this->offsetExists($offset) AND pg_result_seek($this->result, $offset))
- {
- // Set the current row to the offset
- $this->current_row = $offset;
-
- return TRUE;
- }
-
- return FALSE;
- }
-
- public function list_fields()
- {
- $field_names = array();
-
- $fields = pg_num_fields($this->result);
- for ($i = 0; $i < $fields; ++$i)
- {
- $field_names[] = pg_field_name($this->result, $i);
- }
-
- return $field_names;
- }
-
- /**
- * ArrayAccess: offsetGet
- */
- public function offsetGet($offset)
- {
- if ( ! $this->seek($offset))
- return FALSE;
-
- // Return the row by calling the defined fetching callback
- $fetch = $this->fetch_type;
- return $fetch($this->result, NULL, $this->return_type);
- }
-
-} // End Pgsql_Result Class
-
-/**
- * PostgreSQL Prepared Statement (experimental)
- */
-class Kohana_Pgsql_Statement {
-
- protected $link = NULL;
- protected $stmt;
-
- public function __construct($sql, $link)
- {
- $this->link = $link;
-
- $this->stmt = $this->link->prepare($sql);
-
- return $this;
- }
-
- public function __destruct()
- {
- $this->stmt->close();
- }
-
- // Sets the bind parameters
- public function bind_params()
- {
- $argv = func_get_args();
- return $this;
- }
-
- // sets the statement values to the bound parameters
- public function set_vals()
- {
- return $this;
- }
-
- // Runs the statement
- public function execute()
- {
- return $this;
- }
-}
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-13 13:06:33 +0000