385 lines
9.2 KiB
PHP
385 lines
9.2 KiB
PHP
<?php
|
|
/**
|
|
* FuzeWorks Framework Database Component.
|
|
*
|
|
* The FuzeWorks PHP FrameWork
|
|
*
|
|
* Copyright (C) 2013-2018 TechFuze
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
* @author TechFuze
|
|
* @copyright Copyright (c) 2013 - 2018, TechFuze. (http://techfuze.net)
|
|
* @license https://opensource.org/licenses/MIT MIT License
|
|
*
|
|
* @link http://techfuze.net/fuzeworks
|
|
* @since Version 1.1.4
|
|
*
|
|
* @version Version 1.1.4
|
|
*/
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Converted from CodeIgniter.
|
|
*
|
|
* @package FuzeWorks
|
|
* @subpackage Drivers
|
|
* @category Database
|
|
* @author EllisLab Dev Team
|
|
* @link https://codeigniter.com/user_guide/database/
|
|
* @license http://opensource.org/licenses/MIT MIT License
|
|
*/
|
|
class FW_DB_pdo_pgsql_driver extends FW_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;
|
|
|
|
if ( ! empty($this->username))
|
|
{
|
|
$this->dsn .= ';username='.$this->username;
|
|
empty($this->password) OR $this->dsn .= ';password='.$this->password;
|
|
}
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Database connection
|
|
*
|
|
* @param bool $persistent
|
|
* @return object
|
|
*/
|
|
public function db_connect($persistent = FALSE)
|
|
{
|
|
$this->conn_id = parent::db_connect($persistent);
|
|
|
|
if (is_object($this->conn_id) && ! empty($this->schema))
|
|
{
|
|
$this->simple_query('SET search_path TO '.$this->schema.',public');
|
|
}
|
|
|
|
return $this->conn_id;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* 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);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Determines if a query is a "write" type.
|
|
*
|
|
* @param string An SQL query string
|
|
* @return bool
|
|
*/
|
|
public function is_write_type($sql)
|
|
{
|
|
if (preg_match('#^(INSERT|UPDATE).*RETURNING\s.+(\,\s?.+)*$#i', $sql))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
return parent::is_write_type($sql);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* "Smart" Escape String
|
|
*
|
|
* Escapes data based on type
|
|
*
|
|
* @param string $str
|
|
* @return mixed
|
|
*/
|
|
public function escape($str)
|
|
{
|
|
if (is_bool($str))
|
|
{
|
|
return ($str) ? 'TRUE' : 'FALSE';
|
|
}
|
|
|
|
return parent::escape($str);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* ORDER BY
|
|
*
|
|
* @param string $orderby
|
|
* @param string $direction ASC, DESC or RANDOM
|
|
* @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;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* List 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 LOWER("table_name") = '.$this->escape(strtolower($table));
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Returns an object with field data
|
|
*
|
|
* @param string $table
|
|
* @return array
|
|
*/
|
|
public function field_data($table)
|
|
{
|
|
$sql = 'SELECT "column_name", "data_type", "character_maximum_length", "numeric_precision", "column_default"
|
|
FROM "information_schema"."columns"
|
|
WHERE LOWER("table_name") = '.$this->escape(strtolower($table));
|
|
|
|
if (($query = $this->query($sql)) === FALSE)
|
|
{
|
|
return FALSE;
|
|
}
|
|
$query = $query->result_object();
|
|
|
|
$retval = array();
|
|
for ($i = 0, $c = count($query); $i < $c; $i++)
|
|
{
|
|
$retval[$i] = new stdClass();
|
|
$retval[$i]->name = $query[$i]->column_name;
|
|
$retval[$i]->type = $query[$i]->data_type;
|
|
$retval[$i]->max_length = ($query[$i]->character_maximum_length > 0) ? $query[$i]->character_maximum_length : $query[$i]->numeric_precision;
|
|
$retval[$i]->default = $query[$i]->column_default;
|
|
}
|
|
|
|
return $retval;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* 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 : '');
|
|
}
|
|
|
|
}
|