Magento - How to create custom Customer Tab and submit a form

If you ever needed to create a custom Customer tab and put some information there, as well as submit a form, this should give you enough information to accomplish this task.

Create Module declaration

app/etc/modules/Russellalbin_Customertab.xml

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

Create the module configuration file

app/etc/local/Russellalbin/Customertab/etc/config.xml

<config>
 <modules>
 <Russellalbin_Customertab>
 <version>0.0.1</version>
 </Russellalbin_Customertab>
 </modules>
 <adminhtml>
 <layout>
 <updates>
 <customertab>
 <file>customertab.xml</file>
 </customertab>
 </updates>
 </layout>
 </adminhtml>
 <admin>
 <routers>
 <adminhtml>
 <args>
 <modules>
 <russellalbin_customertab before="Mage_Adminhtml">Russellalbin_Customertab_Adminhtml</russellalbin_customertab>
 </modules>
 </args>
 </adminhtml>
 </routers>
 </admin>
 <global>
 <blocks>
 <customertab>
 <class>Russellalbin_Customertab_Block</class>
 </customertab>
 </blocks>
 </global>
</config>

Create the Block for this new Customertab

app/code/local/Russellalbin/Customertab/Block/Adminhtml/Customer/Edit/Tab/Action.php

<?php
/**
* Adminhtml customer action tab
*
*/
class Russellalbin_Customertab_Block_Adminhtml_Customer_Edit_Tab_Action
extends Mage_Adminhtml_Block_Template
implements Mage_Adminhtml_Block_Widget_Tab_Interface
{

public function __construct()
{
$this->setTemplate('customertab/action.phtml'); }
 public function getCustomtabInfo(){
 $customer = Mage::registry('current_customer');
$customtab='Mail Order Comics Pull List';
return $customtab;
}
 /**
* Return Tab label
*
* @return string
*/
public function getTabLabel()
{
return $this->__('Customer Pull List');
}
 /**
* Return Tab title
*
* @return string
*/
public function getTabTitle()
{
return $this->__('Pull List Tab');
}
 /**
* Can show tab in tabs
*
* @return boolean
*/
public function canShowTab()
{
$customer = Mage::registry('current_customer');
return (bool)$customer->getId();
}
 /**
* Tab is hidden
*
* @return boolean
*/
public function isHidden()
{
return false;
}
 /**
* Defines after which tab, this tab should be rendered
*
* @return string
*/
public function getAfter()
{
return 'tags';
}
 }
?>

Create the controller to be used when we post the form from our new tab/page

app/code/local/Russellalbin/Customertab/controllers/Adminhtml/CustomertabController.php

<?php
class Russellalbin_Customertab_Adminhtml_CustomertabController extends Mage_Adminhtml_Controller_Action
{
 function resetAction()
 {
 $params = array();
 $path = 'customer';
 $customer_id = (int)$this->getRequest()->getParam('customer_id');

if($customer_id)
 {
 // Do your stuff here


 $params['id'] = $customer_id;
 $params['back'] = 'edit';
 $params['tab'] = 'customer_edit_tab_action';
 $path = 'adminhtml/customer/edit/';
 }

$params['_store'] = Mage::getModel('core/store')->load(0);

$url = Mage::getModel('adminhtml/url')->getUrl($path, $params);
 Mage::app()
 ->getResponse()
 ->setRedirect($url);

Mage::app()
 ->getResponse()
 ->sendResponse();

exit;
 }

}

Create the Adminhtml design xml

app/design/adminhtml/default/default/layout/customertab.xml

<?xml version="1.0"?>
<layout version="0.1.0">
 <adminhtml_customer_edit>
 <reference name="customer_edit_tabs">
 <action method="addTab"><name>customer_edit_tab_action</name><block>customertab/adminhtml_customer_edit_tab_action</block></action>
 </reference>
 </adminhtml_customer_edit>
</layout>

Create the phtml file for our new content and form

app/design/adminhtml/default/default/template/customertab/action.phtml

<div id="customer_info_tabs_customer_edit_tab_action_content">
<div class="entry-edit">
<div class="entry-edit-head">
<h4 class="icon-head head-edit-form fieldset-legend">Pull List</h4>
</div>
<div id="group_fields4" class="fieldset fieldset-wide">
<div class="hor-scroll">
<h2>This is my form and content that I can submit and return back to this page and tab</h2>
<div><form action="&lt;?php echo $this-&gt;getUrl('adminhtml/customertab/reset/', array('customer_id'=&gt;$customer_id)); ?&gt;" method="get"><input type="submit" value="Post This Form" /></form></div>
</div>
</div>
</div>
</div>