Browsing articles tagged with "magento Archives - Page 21 of 21 - Kalpesh Mehta"
Jun 8, 2011
kalpesh

Override/Rewrite Magento core blocks and controllers

After spending many hours in rewriting block and controller of Magento core module, I finally came up with a solution.
Here I am going to rewrite block: Mage/Adminhtml/Block/Sales/Shipment/Grid.php
and controller: Mage/Adminhtml/controllers/Sales/ShipmentController.php

First you will need to make a xml file for your new module at app/etc/modules directory
CompanyName_Adminhtml.xml

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<?xml version="1.0"?>
<config>
    <modules>
        <CompanyName_Adminhtml>
            <active>true</active>
            <codePool>local</codePool>
        </CompanyName_Adminhtml>
    </modules>
</config>

Then, make folders in your app/code/local directory as follows:
– CompanyName
-> Block
—> Sales
—-> Shipment
——> Grid.php
-> controllers
—> Sales
—-> ShipmentController.php
-> etc
—> config.xml

In etc/config.xml, your code should look like below:

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<?xml version="1.0"?>
<config>
    <modules>
        <CompanyName_Adminhtml>
            <version>0.1.0</version>
        </CompanyName_Adminhtml>
    </modules>

    <global>
    <blocks>
        <adminhtml>
            <rewrite>
                <sales_shipment_grid>CompanyName_Adminhtml_Block_Sales_Shipment_Grid</sales_shipment_grid>
            </rewrite>
        </adminhtml>
    </blocks>

    <routers>
            <adminhtml>
           <rewrite>
                  <sales_shipment>
                      <from><![CDATA[#^/admin/sales_shipment/$#]]></from>
                      <to>/admin/sales_shipment/</to>
                  </sales_shipment>
            </rewrite>
       </adminhtml>
        </routers>
   </global>

    <admin>
        <routers>
            <adminhtml>
                <args>
                    <modules>
                        <CompanyName_Adminhtml before="Mage_Adminhtml">CompanyName_Adminhtml</CompanyName_Adminhtml>
                    </modules>
                </args>
            </adminhtml>
        </routers>
    </admin>

</config>

In ShipmentController.php, you should start like this:

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require_once("Mage/Adminhtml/controllers/Sales/ShipmentController.php");
class CompanyName_Adminhtml_Sales_ShipmentController extends Mage_Adminhtml_Sales_ShipmentController
{
  //controller methods goes here..
}

require_once is necessary as magento is not going to load controllers as it does for blocks and models

In block Grid.php, start the file like below:

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class CompanyName_Adminhtml_Block_Sales_Shipment_Grid extends Mage_Adminhtml_Block_Widget_Grid
{
  // block methods goes here..
}

That’s it! Now you should get your local Grid.php and ShipmentController.php loading instead of core’s.

Jun 6, 2011
kalpesh

Magento: Get all the values of a Magento EAV for a particular attribute code

If you have ever wondered how to get all the values of any EAV attribute for products in Magento, then this is the workaround for you:

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$attribute = Mage::getModel('eav/config')->getAttribute('catalog_product', 'color'); //here, "color" is the attribute_code
$allOptions = $attribute->getSource()->getAllOptions(true, true);
foreach ($allOptions as $instance) {
    $myArray[$instance['value']] = $instance['label'];
}
Mage::log($myArray);

You will get list of all colors in an array called “myArray” in value => label format.

Jun 5, 2011
kalpesh

Magento 1.5: Cannot login to admin panel after fresh install

After installing magento 1.5, I tried to login to the admin panel with correct username and password, but it does not let me in without any error message. This is due to cookie problem in magento and can be fixed as below:

Open this file in your favorite editor: app/code/core/Mage/Core/Model/Session/Abstract/Varien.php

Comment lines that says like (probably line number 81 to 83)

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$this->getCookie()->getDomain(),
$this->getCookie()->isSecure(),
$this->getCookie()->getHttponly()

to

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//$this->getCookie()->getDomain(),
//$this->getCookie()->isSecure(),
//$this->getCookie()->getHttponly()

Now you could login to your admin panel without any problem.

Welcome to my Blog

Kalpesh MehtaHelping Magento developers in their day-to-day development problems since 2011. Most of the problems and solutions here are my own experiences while working on different projects. Enjoy the blog and don't forget to throw comments and likes/+1's/tweets on posts you like. Thanks for visiting!

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