class.arStorage.php

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<?php
require_once(dirname(__FILE__) . '/../class.ActiveRecord.php');

abstract class arStorage extends ActiveRecord
{

    protected $external_model_for_storage;


    public static function getInstance(&$model)
    {
        arFieldCache::storeFromStorage(get_called_class(), $model);
        $storage = self::getCalledClass();
        $method = self::_toCamelCase('get_' . $storage->getArFieldList()->getPrimaryFieldName());
        $storage->setExternalModelForStorage($model);
        $storage->{$storage->getArFieldList()->getPrimaryFieldName()} = $model->{$method}();
        if ($storage->{$storage->getArFieldList()->getPrimaryFieldName()}) {
            $storage->read();
        }
        $storage->mapFromActiveRecord();

        return $storage;
    }


    public function create()
    {
        $this->mapToActiveRecord();
        parent::create();
    }


    public function update()
    {
        $this->mapToActiveRecord();
        parent::update();
    }


    public function read()
    {
        parent::read();
        $this->mapFromActiveRecord();
    }


    protected function mapToActiveRecord()
    {
        foreach (array_keys($this->getArFieldList()->getArrayForConnector()) as $key) {
            $this->{$key} = $this->getValueForStorage($key);
        }
    }


    protected function mapFromActiveRecord()
    {
        foreach (array_keys($this->getArFieldList()->getArrayForConnector()) as $key) {
            $this->setValueToModel($key, $this->{$key});
        }
    }


    public function getValueForStorage($key)
    {
        $method = self::_toCamelCase('get_' . $key);

        return $this->getExternalModelForStorage()->{$method}();
    }


    public function setValueToModel($key, $value)
    {
        $method = self::_toCamelCase('set_' . $key);

        return $this->getExternalModelForStorage()->{$method}($value);
    }




    //
    // Setter & Getter
    //

    public function setExternalModelForStorage($model)
    {
        $this->external_model_for_storage = $model;
    }


    public function getExternalModelForStorage()
    {
        return $this->external_model_for_storage;
    }
}

?>