<?php

/**
 * Copyright (c) 2008, SARL Adaltas. All rights reserved.
 * Code licensed under the BSD License:
 * http://porte.adaltas.com/en/developer/license.html
 */

/**
 * PorteOneToManyBelongsTo
 * 
 * @package    Porte
 * @subpackage plugin
 * @author     David Worms info(at)adaltas.com
 * @copyright  2008 Adaltas
 */
class PorteOneToManyBelongsTo{
	
	public static function getRecord($property,$record){
		// Deal with lazy loading if required
		if(!array_key_exists($property,$record->attributes)&&!$record->isNew())$record->load($record->getIdentifier(),array('force'=>true));
		$config = $record->porte->models->{$record->type}['properties'][$property];
		// if association not yet created and we got a foreign key then create the association
		if($record->isNew()||array_key_exists($property,$record->associations)){
			if(array_key_exists($property,$record->associations)||array_key_exists($property,$record->attributes)){
				$value = array_key_exists($property,$record->associations)?$record->associations[$property]:$record->attributes[$property];
				if(is_null($value)){
					// ok, we'll just return null
				}else if(is_int($value)){
					$instance = $record->porte->tables->get($config['belongs_to']['type'])->load($value);
					$record->associations[$property] = $instance;
				}else if(!is_object($value)&&!$value instanceof PorteRecord){
					unset($record->associations[$property]);
				}
			}else{
				$record->associations[$property] = null;
			}
			return $record->associations[$property];
		}else if(!isset($record->associations[$property])&&!empty($record->attributes[$property])){
			$recordAssoc = $record->porte->tables->{$config['belongs_to']['type']}->load($record->attributes[$property]);
			return $record->associations[$property] = $recordAssoc;
		// if association already set, return it
		}else if(array_key_exists('default',$config)){
			return $config['default'];
		}else{
			return $record->associations[$property] = null;
		}
	}
	
	/**
	 * Note, setting an associated record does not load the record if a primary key (or an 
	 * array) is provided.
	 * 
	 * @return PorteRecord The current record
	 * @param $property Object
	 * @param $record Object
	 * @param $assocRecord Object[optional]
	 */
	public static function setRecord($property,$record,$assocRecord=null){
		$config = $record->porte->models->{$record->type}['properties'][$property];
		$assocRecord = PorteAssociations::makeRecord($record,$config,'belongs_to',$assocRecord);
		$record->associations[$property] = $assocRecord;
		return $record;
	}
	
}

?>