HELP with unit_price of the product

<?php
defined('_JEXEC') or die('Restricted access');
require_once (JPATH_SITE.'/templates/xxxxx/includes/webserviceCall.php');

class plgChangedPrice extends JPlugin
{
	function plgChangedPrice(&$subject, $config)
	{
		parent::__construct($subject, $config);

		$this->reportError = new treatErrors;
		if(!isset($this->params))
		{
			$plugin = JPluginHelper::getPlugin('hikashop', 'history');
			jimport('joomla.html.parameter');
			if(version_compare(JVERSION,'2.5','<'))
			{
				$this->params = new JParameter($plugin->params);
			}
			else
			{
				$this->params = new JRegistry($plugin->params);
			}
		}
	}

	function onHikashopBeforeDisplayView(&$view)
	{
		$pIncludeScales = true;
		$price			= new stdClass;
		$sess 			= JFactory::getSession();
		
		$price->price_currency_id = hikashop_getCurrency();
		$price->price_min_quantity = 1;
		
		if($view->getName() == 'product' && !$sess->get('user')->guest)
		{
			if($view->getLayout() == 'show')
			{
				$view->element->product_code = strrpos($view->element->product_code, '-') > 0 ? substr($view->element->product_code, strrpos($view->element->product_code, '-')+1, strlen($view->element->product_code)) : $view->element->product_code;
				$prodCode = new cPriceListProductInput($view->element->product_code, $view->element->product_min_per_order);
				$pProductList[] = $prodCode;
			}
			else
			{
				foreach ($view->rows as $key => $val)
				{
					$view->rows[$key]->product_code = strrpos($val->product_code, '-') > 0 ? substr($val->product_code, strrpos($val->product_code, '-')+1, strlen($val->product_code)) : $val->product_code;
					$prodCode = new cPriceListProductInput($view->rows[$key]->product_code, $val->product_min_per_order);
					$pProductList[] = $prodCode;
				}
			}
			$this->reportError->postError();

			if(!$sess->get('user')->guest && $sess->has('userINAInfo'))
			{
				$user = $sess->get('userINAInfo');
				$iWS = new cInapaws;
				$iPL = $iWS->ProductPriceList($user['customers_ISIAccount'], $pIncludeScales, $pProductList);
				$iCA = $iWS->CheckAvailability($user['customers_ISIAccount'], $user['entry_postcode'], $prodCode->id, $prodCode->qtd);

				if($view->getLayout() == 'show')
				{
					if(empty($view->element->prices))
					{
						$view->element->prices = array($price);
					}
					if($iPL[0]->WebPrice > 0)
					{
						$view->element->price_value = $iPLt[0]->WebPrice;
						
						foreach($view->element->prices as $k => $garbage)
						{
							$view->element->prices[$k]->price_value 			= $iPL[0]->WebPrice;
							$view->element->prices[$k]->price_value_with_tax 	= $iPL[0]->WebPrice;
							$view->element->amount 								= $iPL[0]->WebPrice;	
						}
					}
					$view->element->product_quantity = $iCA[0]->Warehouse[0]->Expedition.'h';
				}
				else
				{
					if(count($view->rows) > 0)
					{
						foreach($iPL as $keyW=>$wsVal)
						{
							foreach($view->rows as $keyP=>$prodVal)
							{
								if($view->rows[$keyP]->product_code == $iPL[$keyW]->id)
								{
									if($wsVal->WebPrice != 0)
									{
										if(empty($view->rows[$keyP]->prices))
										{
											$view->rows[$keyP]->prices = array($price);
										}
										
										$view->rows[$keyP]->price_value = $wsVal->WebPrice;
										
										foreach($view->rows[$keyP]->prices as $k => $garbage)
										{										
											$view->rows[$keyP]->prices[$k]->price_value = $wsVal->WebPrice;
											$view->rows[$keyP]->prices[$k]->price_value_with_tax = $wsVal->WebPrice;
											$view->rows[$keyP]->amount = $iPL[0]->WebPrice;
										}
									}
								}
								unset($price);								
								$price = new stdClass;								
								$price->price_currency_id 	= hikashop_getCurrency();
								$price->price_min_quantity 	= 1;
							}
						}
					}
				}
			}
			$this->reportError->postError();
		}
	}
?>