<?php

class kDBTagProcessor extends TagProcessor {
	
	/**
	 * Prints list content using block specified
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function PrintList($params)
	{
		$list =& $this->Application->recallObject( $this->getPrefixSpecial(), $this->Prefix.'_List',$params);
		$id_field = $this->Application->getUnitOption($this->Prefix,'IDField');
		//<inp:cand_MapField field="candidate_id" var_name="cand_id"/>
		
		/*$parser =& $this->Application->recallObject('TemplateParser');
		
		// only useful in case in inside prinklist block we have another
		// tagprocessor who wants to findout out printlist prefix and special
		$parser->SetParam('prefix', $this->Prefix);
		$parser->SetParam('special', $this->Special);*/
		
		$list->Query();
		$o = '';
		$list->GoFirst();
		
		$block_params=$this->prepareTagParams($params);
		$block_params['name']=$params['block'];
		$block_params['pass_params']='true';
		
		while (!$list->EOL()) 
		{
			$this->Application->SetVar( $this->getPrefixSpecial().'_id', $list->GetDBField($id_field) );
			$o.= $this->Application->ParseBlock($block_params, 1);
			$list->GoNext();
		}
		return $o;	
	}
	
	/**
	 * Append prefix and special to tag
	 * params (get them from tagname) like
	 * they were really passed as params
	 *
	 * @param Array $tag_params
	 * @return Array
	 * @access protected
	 */
	function prepareTagParams($tag_params)
	{
		$ret=$tag_params;
		$ret['Prefix']=$this->Prefix;
		$ret['Special']=$this->Special;
		$ret['PrefixSpecial']=$this->getPrefixSpecial();
		return $ret;
	}
	
	/**
	 * Get's reuested field value
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function Field($params)
	{
		$field = $params['field'];
		$object =& $this->Application->recallObject($this->getPrefixSpecial(),$this->Prefix, $params);
		
		$value = $object->GetField($field);
		
		if (isset($params['nl2br'])) $value = nl2br($value);
		
		return $value;
	}
	
	/**
	 * Print grid pagination using
	 * block names specified
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function PrintPages($params)
	{
		$prefix_special=$this->getPrefixSpecial();
		$object =& $this->Application->recallObject($prefix_special,$this->Prefix.'_List',$params);
		$total = $object->GetTotalPages();
		
		$o = '';
		
		$this->Application->SetVar($prefix_special.'_event','');
		$this->Application->SetVar($prefix_special.'_id','');
		
		$current_page = $this->Application->RecallVar($prefix_special.'_page');
		
		$block_params=$this->prepareTagParams($params);
		
		for ($i=1; $i<=$total; $i++)
		{
			$this->Application->SetVar($prefix_special.'_page',$i);
			$block = $params[ (($i==$current_page)?'active':'inactive').'_block' ];
			$block_params['name']=$block;
			$block_params['page']=$i;
			$o .= $this->Application->ParseBlock($block_params, 1);
		}
		
		return $o;
	}
	
	/*function MapField($params)
	{
		$object =& $this->Application->recallObject($this->Prefix.'.'.$this->Special);
		$value = $object->GetField($params['field']);
		$this->Application->SetVar($params['var_name'],$value);
	}*/

	/**
	 * Returns input field name to
	 * be placed on form (for correct
	 * event processing)
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function InputName($params)
	{
		$prefix_special=$this->getPrefixSpecial();
		$item = $this->Application->recallObject($prefix_special);
		return $prefix_special.'['.$item->GetID().']['.$params['field'].']';
	}
	

	
}

?>