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I have the following requirement for a shipping module in Magento: on the shipping method step on one page checkout in Magento, the user should be able to add additional options to a particular method (are there any fragile items, pick up from warehouse, add insurance etc.). Based on that, I have to recalculate shipping costs. In essence, I need to get the submitted options, make an API call, and represent the new costs to the user. Currently I have overriden Checkout_OnepageController successfully. How can I repeat that step?

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You can recalculate totals by using collectTotals() method in app/code/core/Mage/Sales/Model/Quote/Address.php by getting the quote. For example:

$this->getQuote()->collectTotals();

Regards,

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  • Thanks for the quick answer Marceli, but i need to add to the costs to the shipping methods alone.Basically i need to add some costs in collectRates method in the custom carrier object.To do that i will use the parameters submitted in the $_POST array and then redisplay the new values to the customer, but in order to do that i need to submit co-shipping-method-form first (via additional button).
    – Evgeni Ivanov
    Mar 6, 2013 at 14:47
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    Check collectShippingRates() method in the same file maybe this will help you.
    – Marceli Po
    Mar 6, 2013 at 14:54
  • Yes, i am just playing with this method.It seems that there is no other way to achieve what i want.Thank again Marceli!
    – Evgeni Ivanov
    Mar 6, 2013 at 15:32

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