How to check module enable or not from system advance tab in xml

Question

I am adding a tab in product page in admin. I want to check module is enable or not before adding tab from xml.

System -> Configuration -> Advanced

Only in case of module enable then we want to add some xml to include. but in case of writing ifconfig we are getting true if module enable.

is there any else condition for that ?

Answer 1

System -> Configuration -> Advanced is just for showing the module output or not. Even "disable" module on thispage, the module still run on background.

To truly disable a module, you should go to app/etc/modules/Module_Name.xml and set active to false. So that:

<active>false</active>

If you want to add dependency inside a module, you can add the following code:

<depends>
      <Module_Name />
</depends>

Answer 2

Right way to disable any module from xml file. You need to change in app/etc/modules/module_name.xml change "true" to "false" in active tag.

Answer 3

Using your tab interface Mage_Adminhtml_Block_Widget_Tab_Interface allows you to control the display via the method canShowTab.

public function canShowTab()
{
    return Mage::helper('Core')->isModuleEnabled('Vendor_Module');
}