I created a module, let’s say, ‘MyModule’. When I go to the Admin -> System -> Configuration section of this module, I get this weird error. Fatal error: Class ‘Mage_MyModule_Helper_Data’ not found

Scenario I was creating a module. I already had one Grid displayed in admin. The Grid was being displayed by a Block class, for example: MyNamespace_MyModule_Block_Adminhtml_MyModule Now, I had to display another Grid using a new Block class. Let’s say, I created a new Block class: MyNamespace_MyModule_Block_Adminhtml_MyNewGrid I just copied code from MyNamespace_MyModule_Block_Adminhtml_MyModule and copied [...]

Scenario: I have a fresh installation of Magento 1.4. I already have installed the sample data for Magento. Now, when I go to the category listing page, no products are displayed. It says “There are no products matching the selection.“.

I got this error message when migrating my Magento files and database from one server to another. Notice: Undefined index: 0 in app/code/core/Mage/Core/Model/Mysql4/Config.php on line 92 Solution:

IFrames are not supported with XHTML 1.0 Strict Doctype. When you use IFrame and your doctype is XHTML 1.0 Strict, then you cannot pass the W3C Markup Validation test. You always get errors. The errors are like:-

Problem: I am using Magento 1.4. Homepage loads fine. When I go to category (product listing) page, it works fine. But when I go to any product detail page, I get the following error:- There has been an error processing your request

I was building a custom module in Magento. I had created a system.xml file for storing configuration data from admin. From the below system.xml file, you can see that I have created a section named ‘My Module Name‘ which can be accessed from Admin –> System –> Configuration. In the file below, I have just [...]

Scenario: While editing product programatically from frontend. I was trying to change the status of the product with the following code: Mage::getModel(‘catalog/product’)->load($product->getId())->setStatus(2)->save();

I’m human, Google ! I was googling something and google suddenly said sorry to me. It says my computer is sending automated queries. I was just googling “magento programmer developer nepal” by changing the word position at each time. I just googled this way for at most 5 times. Google help says the following thing [...]

Scenario: I am installing a fresh magento 1.3.2.1 in my Windows XP computer. I have Xampp installed. While installing magento, I had a problem at the configuration step where I had to fill database host, username, password etc. When I click continue after filling the required fields, the installation process doesn’t move forward. I am [...]

I was installing Magento 1.3.2.1 in my Windows XP computer. I am using Xampp. I encountered the following errors during the installation. PHP Extension “curl” must be loaded PHP Extension “mcrypt” must be loaded PHP Extension “pdo_mysql” must be loaded

Error: A potentially dangerous Request.Form value was detected from the client Scenario: When you put html tags in your form fields (textbox,textarea) like

Error description: Cannot insert the value NULL into column ‘SourceId’, table ‘Advisory.dbo.AdvDocSource’; column does not allow nulls. INSERT fails. The statement has been terminated. The ‘CompanyAdd’ procedure attempted to return a status of NULL, which is not allowed. A status of 0 will be returned instead. ——————————- This error occurs because the ‘SourceId’ column in [...]

This error might occur if you have selected your selection list (dropdownlist) multiple times. You can add multiple=”true” e.g. in your selection list so as to enable multiple item select. If you don’t want your selection list to be multiple select enabled then you have to check whether you have selected the selection list multiple [...]

Problem When you start your Windows Operating System, a popup appears related to updatemgr.exe stating that “The NTDVM CPU has encountered an illegal instruction”. This should be closed or ignored. I mean to say that there are two options with this error at a glance. Either you can close it or you can ignore it. [...]