Magento – Dynamically calculated prices save after add to cart

cartproduct

We tried to update the product price after addto cart. I done the following code but cant get the item product price.

In app/etc/modules

 <?xml version="1.0"?>
<config>
  <modules>
    <test_Productoptions>
      <active>true</active>
      <codePool>local</codePool>
      <version>0.1.0</version>
       <depends>
            <Mage_Checkout />
       </depends>
    </test_Productoptions>
  </modules>
</config>

In app/code/local/test/productoptions/etc

0.0.1

Test_Productoptions_Model

        <checkout_cart_product_add_after>
            <observers>
                <priceupdate_observer>
                    <type>singleton</type>
                    <class>test_productoptions/observer</class>
                    <method>updatePrice</method>
                </priceupdate_observer>
            </observers>
        </checkout_cart_product_add_after>
    </events>
</frontend>

I Write the observer in app/code/local/test/productoptions/model

<?php
class Test_Productoptions_Model_Observer
{

    public function _construct()
      {
      }

    public function getNewPrice()
      {
        //Your new functionality here
        //
        $newprice = "";

        return $newprice;
      }

     public function updatePrice( Varien_Event_Observer $observer ) 
     {

        $quote_item  = $observer->getQuoteItem();
        $product     = $quote_item->getProduct();
        $quantity    = $product->getQty();

       echo $quote_item->getPrice();
      die();

     }
}

In this $quote_item->getPrice() is return null value. How to get the currently added product price from quote.

Best Answer

First set this code in config.xml

<checkout_cart_product_add_after>
    <observers>
        <custom_catalog_price_observer>
            <type>singleton</type>
            <class>productoptions/observer</class>
            <method>setProductCustomPrice</method>
        </custom_catalog_price_observer>
    </observers>
</checkout_cart_product_add_after>

You should use below method in Observer

public function setProductCustomPrice($observer)
{
    // Get the quote item
    $item = $observer->getQuoteItem();
    // Ensure we have the parent item, if it has one
    $item = ( $item->getParentItem() ? $item->getParentItem() : $item );
    // Load the custom price

    $org_price = $item->getProduct()->getFinalPrice();

    //SET YOUR CUSTOM PRICE HERE
    $custom_price = $org_price + 15;

    $price = $custom_price;
    // Set the custom price
    $item->setCustomPrice($price);
    $item->setOriginalCustomPrice($price);
    // Enable super mode on the product.
    $item->getProduct()->setIsSuperMode(true);
}

Replace this line $custom_price = $org_price + 15; with your custom price logic

Related Solutions

Magento – Dynamically calculated prices save before add to cart

You don't need to save price for product.

Just pass your dynamic price with in post parameter and set your dynamic price for product in observer event.

You can use an observer class to listen to checkout_cart_product_add_after, and use a product’s “Super Mode” to set custom prices against the quote item.

In your /app/code/local/{namespace}/{yourmodule}/etc/config.xml:

<config>
    ...
    <frontend>
        ...
        <events>
            <checkout_cart_product_add_after>
                <observers>
                    <unique_event_name>
                        <class>{{modulename}}/observer</class>
                        <method>modifyPrice</method>
                    </unique_event_name>
                </observers>
            </checkout_cart_product_add_after>
        </events>
        ...
    </frontend>
    ...
</config>

And then create an Observer class at /app/code/local/{namespace}/{yourmodule}/Model/Observer.php

 class <namespace>_<modulename>_Model_Observer
{
    public function modifyPrice(Varien_Event_Observer $obs)
    {
        // Get the quote item
        $item = $obs->getQuoteItem();
        // Ensure we have the parent item, if it has one
        $item = ( $item->getParentItem() ? $item->getParentItem() : $item );
        // Load the custom price
        $price = "your custom price logic";
        // Set the custom price
        $item->setCustomPrice($price);
        $item->setOriginalCustomPrice($price);
        // Enable super mode on the product.
        $item->getProduct()->setIsSuperMode(true);
    }



}

Magento – Redirect to same product URL after error from Add To Cart

You would need to write an extension that adds a good bit of info that isn't passed by default. There's no Magento setting that would achieve this.

If you look at the addProduct function in app\code\Core\Mage\Checkout\Model\Cart.php, the $requestInfo only includes the product id, which in turn is used later on the get the url that you are returned to. There's no way of Magento knowing which category you're coming from because the only thing passed in the product id.

Inside of that function you will see a comment stating "String we can get if prepare process has error". The code right below this is where the redirect url is generated using $product->getUrlModel()->getUrl..

There are several ways you could extend this to get the result you want. One way would be to get the first category for the product and change the way the $redirectUrl is generated so that it always includes that category.

Another method might be to pass along the referer url that's available in the initial request which would be located in the addAction function in app\code\core\Mage\Checkout\controllers\CartController.php. You could add it as part of the params that gets passed to the addProduct function in the Model. The referer url will have the category as part of the url.

Best Answer

Related Solutions

Magento – Dynamically calculated prices save before add to cart

Magento – Redirect to same product URL after error from Add To Cart

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