<?php
/**
* Base
*
* Desciption
* @package kernel4
*/
class kBase {
	/**
	* Holds reference to global KernelApplication instance
	* @access public
	* @var kApplication
	*/
	var $Application;

	/**
	 * Prefix, that was used
	 * to create an object
	 *
	 * @var string
	 * @access public
	 */
	var $Prefix='';
	
	/**
	 * Special, that was used
	 * to create an object
	 *
	 * @var string
	 * @access public
	 */
	var $Special='';
	
	/**
	 * Set's prefix and special
	 *
	 * @param string $prefix
	 * @param string $special
	 * @access public
	 */
	function Init($prefix,$special)
	{
		$prefix=explode('_',$prefix,2);
		$this->Prefix=$prefix[0];
		$this->Special=$special;
	}
	
	/**
	 * Returns joined prefix
	 * and special if any
	 *
	 * @return string
	 * @access protected
	 */
	function getPrefixSpecial()
	{
		return rtrim($this->Prefix.'.'.$this->Special,'.');
	}
	
	/**
	 * Set's application
	 *
	 * @return kBase
	 * @access public
	 */
	function kBase()
	{
		$this->Application =& kApplication::Instance();
	}
}

class kDBBase extends kBase {
	/**
	* Description
	*
	* @var DBConnection
	* @access public
	*/
	var $Conn;
	
	/**
	* Description
	*
	* @var string Name of primary key field for the item
	* @access public
	*/
	var $IDField;
	
	/**
	* Holds SELECT, FROM, JOIN parts of SELECT query
	*
	* @var string
	* @access public
	*/
	var $SelectClause;
	
	/**
	* Display queries executed by the class
	*
	* @var bool 
	* @access public
	*/
	var $DisplayQueries = false;
	
	/**
	 * Object that holds all
	 * formatters created
	 *
	 * @var kItemFormatter
	 * @access private
	 */
	var $ItemFormatter;
	
	/**
	* Description
	*
	* @var string Item' database table name, without prefix
	* @access public
	*/
	var $TableName;
	
	function kDBBase()
	{
		parent::kBase();
		$this->Conn =& $this->Application->GetADODBConnection();
	}
	
	/**
	* Set current item' database table name
	*
	* @access public
	* @param string $table_name
	* @return void
	*/
	function setTableName($table_name)
	{
		$this->TableName = $table_name;
	}
	
	/**
	* Sets SELECT part of list' query
	*
	* @access public
	* @param string $sql SELECT and FROM [JOIN] part of the query up to WHERE
	* @return void
	*/
	function SetSelectSQL($sql)
	{
		$this->SelectClause = $sql;
	}
	
	function GetSelectSQL()
	{
		return sprintf($this->SelectClause,$this->TableName);
	}
	
	/**
	* Sets ID Field name used as primary key for loading items
	*
	* @access public
	* @param string $field_name
	* @return void
	* @see kDBBase::IDField
	*/
	function setIDField($field_name)
	{
		$this->IDField = $field_name;
	}
	
	/**
	 * Returns formatted field value
	 *
	 * @param string $field
	 * @return string
	 * @access public
	 */
	function GetField($field)
	{
		
	}
	
	/**
	 * Returns unformatted field value
	 *
	 * @param string $field
	 * @return string
	 * @access public
	 */
	function GetDBField($field)
	{
		
	}
	
	/**
	 * Returns ID of currently processed record
	 *
	 * @return int
	 * @access public
	 */
	function GetID()
	{
		return $this->GetDBField($this->IDField);
	}
}

?>