How to redirect my custom module url after admin login

Question

What I want:
Admin should redirect my custom module url('adminhtml_module1/testimonial/index') instead of dashboard page after successfully admin login.

Any idea ? How can I do this ?

Answer 1

Short answer:

The redirect is done to the page selected in System > Configuration > Admin > Startup Page.

If you already defined a menu node for your admin page, you should be able to select it form the dropdown.

Further information:

The dropdown consists of system config values form the source model adminhtml/system_config_source_admin_page built in app/code/core/Mage/Adminhtml/Model/System/Config/Source/Admin/Page.php

This iterates through all <menu> nodes from the admin config entries.

The corresponding XML config node is admin/startup/page where the corresponding URL for the redirect is retreived in Mage_Admin_Model_User.

The actual redirect happens in Mage_Adminhtml_IndexController:

/**
 * Admin area entry point
 * Always redirects to the startup page url
 */
public function indexAction()
{
    $session = Mage::getSingleton('admin/session');
    $url = $session->getUser()->getStartupPageUrl();
    if ($session->isFirstPageAfterLogin()) {
        // retain the "first page after login" value in session (before redirect)
        $session->setIsFirstPageAfterLogin(true);
    }
    $this->_redirect($url);
}