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<?php
/**
This file is part of the APP(ideas) database abstraction project (AiDb).
Copyright 2013, APPideas
AiDb is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
AiDb is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with AiDb (in the 'resources' directory). If not, see
<http://www.gnu.org/licenses/>.
http://appideas.com/abstract-your-database-introduction
*/
/**
* A class to manage Common needs. For this project, this is used as a gateway to the database layer.
*
* @package Ai_DatabaseAbstraction
*/
class AiCommon
{
// database connection info
// reset these to match your server
/**
* Database host name
* @var string
*/
protected $mDbHost = "localhost";
/**
* Database schema name
* @var string
*/
protected $mDbName = "mydatabase";
/**
* Database username
* @var string
*/
protected $mDbUser = "myusername";
/**
* Database password
* @var string
*/
protected $mDbPass = "mypasswd";
/**
* Database system utilized if the argument to the constructor is blank. This only ever needs to get reset through the constructor for testing.
* Under normal circumstances, leave the constructor argument blank, and this will be used.
* Valid values with the default distribution are 'pgsql' 'mysql' or 'oracle'
* @var string
*/
public $mAutoDbMethod = "mysql";
/**
* Database system utilized by instances of this class.
* @var string
*/
public $mDbMethod;
/**
* An instance of the database
* @var AiDb
*/
public $mDb;
/**
* Class constructor.
*
* Creates an instance
*
* @since Version 20120328
* @author Version 20120328, costmo
* @param string $dbMethod Specify a different DBMS to use. This is for testing only. Normal use would have $mAutoDbMethod defined and this class instantiated with a blank constructor.
*/
function __construct( $dbMethod = null )
{
$this->mDbMethod = (null === $dbMethod) ? strtolower( $this->mAutoDbMethod ) : strtolower( $dbMethod );
if( "mysql" === $this->mDbMethod )
{
require_once( "base/AiMysql.php" );
$this->mDb = new AiMysql( $this->mDbHost, $this->mDbUser, $this->mDbPass, $this->mDbName );
$this->mDb->connect();
}
else if( "pgsql" === $this->mDbMethod )
{
require_once( "base/AiPgsql.php" );
$this->mDb = new AiPgsql( $this->mDbHost, $this->mDbUser, $this->mDbPass, $this->mDbName );
$this->mDb->connect();
}
else if( "oracle" === $this->mDbMethod )
{
require_once( "base/AiOracle.php" );
$this->mDb = new AiOracle( $this->mDbHost, $this->mDbUser, $this->mDbPass, $this->mDbName );
$this->mDb->connect();
}
else
{
echo "FATAL ERROR: '" . $this->mDbMethod . "' is an unknown database connector.
I tried my best, but you fed me information that I don't comprehend.
Please consult your system administrator.";
exit();
}
// get our PHP version and define generic names for superglobal arrays
$phpVer = phpversion();
$split = explode( ".", $phpVer );
$major = (int) $split[0];
// force PHP version >= 5
if( !$major || $major < 5 )
{
echo "Sorry, PHP version must be at least 5.
Current version detected: " . $phpVer . "\n";
exit();
}
} // end constructor
} // end Common