Ttdfjt

I've been searching for a solution to this. Basically what is happening here is each item in the inventory has it's own shipping price set.

When these items are added to a cart, the shipping is calculated and returned by the model shipping/carrier_flatrate, then added to an array.

I can't seem to find where this is totaled up. I've heard that the arrays can be sorted wrong in some cases, however, this seems to be a different situation causing this entirely. Any ideas are greatly appreciated.

I've been searching Google for days trying to make sense of this.

I believe you are looking for

app/code/core/Mage/Shipping/Model/Carrier/Flatrate.php

Which looks like

 public function collectRates(Mage_Shipping_Model_Rate_Request $request)
 
 if (!$this->getConfigFlag('active')) 
 return false;
 

 $freeBoxes = 0;
 if ($request->getAllItems()) 
 foreach ($request->getAllItems() as $item) $item->getParentItem()) 
 continue;
 

 if ($item->getHasChildren() && $item->isShipSeparately()) 
 foreach ($item->getChildren() as $child) 
 if ($child->getFreeShipping() && !$child->getProduct()->isVirtual()) 
 $freeBoxes += $item->getQty() * $child->getQty();
 
 
 elseif ($item->getFreeShipping()) 
 $freeBoxes += $item->getQty();
 
 
 
 $this->setFreeBoxes($freeBoxes);

 $result = Mage::getModel('shipping/rate_result');
 if ($this->getConfigData('type') == 'O') // per order
 $shippingPrice = $this->getConfigData('price');
 elseif ($this->getConfigData('type') == 'I') // per item
 $shippingPrice = ($request->getPackageQty() * $this->getConfigData('price')) - ($this->getFreeBoxes() * $this->getConfigData('price'));
 else 
 $shippingPrice = false;
 

 $shippingPrice = $this->getFinalPriceWithHandlingFee($shippingPrice);

 if ($shippingPrice !== false) $request->getPackageQty() == $this->getFreeBoxes()) 
 $shippingPrice = '0.00';
 


 $method->setPrice($shippingPrice);
 $method->setCost($shippingPrice);

 $result->append($method);
 

 return $result;
 

If there is custom code involved in calculating the shipping rates, I would look for a module that is rewriting the collectRates method, there is also a couple other events they could have hooked into to re-calculate the shipping costs, I would also look at the config.xml files of any custom modules that have been written.

Hope this helps