Mfrhtyj

I am working with Magento 1.9.2 and I am rewriting a custom extension trying to add new custom tab at the order view page in the admin panel.

This is the part in the config.xml pointing to the layout file:

<adminhtml>        

    <layout>

        <updates>

            <mageworx_ordersedit>

                <file>mageworx_ordersedit.xml</file>

            </mageworx_ordersedit>

        </updates>

    </layout>

    <events>

        <core_block_abstract_to_html_after>

            <observers>

                <mw_add_coupon_block>

                    <type>singleton</type>

                    <class>mageworx_ordersedit/observer</class>

                    <method>insertCouponBlock</method>

                </mw_add_coupon_block>

            </observers>

        </core_block_abstract_to_html_after>

    </events>

    <translate>

        <modules>

            <MageWorx_OrdersEdit>

                <files>

                    <default>MageWorx_OrdersEdit.csv</default>

                </files>

            </MageWorx_OrdersEdit>

        </modules>

    </translate>

</adminhtml>

Here is the content in /app/design/adminhtml/default/default/layout/mageworx_ordersedit.xml

<adminhtml_sales_order_view>

    <reference name="head">

        <action method="addCss" ifconfig="mageworx_ordersmanagement/ordersedit/enabled"><name>css/mageworx/ordersedit/styles.css</name></action>



        <action method="addItem" ifconfig="mageworx_ordersmanagement/ordersedit/show_thumbnails"><type>js_css</type><name>mageworx/lightbox/css/lightbox.css</name><params/></action>

        <action method="addItem" ifconfig="mageworx_ordersmanagement/ordersedit/show_thumbnails"><type>js_css</type><name>mageworx/lightbox/css/lightbox-ie.css</name><params/><if>lt IE 8</if></action>

        <action method="addItem" ifconfig="mageworx_ordersmanagement/ordersedit/show_thumbnails"><type>js</type><name>mageworx/lightbox/js/lightbox.js</name><params/><if/></action>



        <action method="addItem"><type>js</type><name>mageworx/ordersedit/order_edit.js</name><params/><if/></action>



        <action method="addJs"><file>mage/adminhtml/product/composite/configure.js</file></action>

        <action method="addJs"><file>varien/configurable.js</file></action>

    </reference>



    <!--  Replace standard "Order History" block  -->

    <block type="mageworx_ordersedit/adminhtml_sales_order_history" name="order_history" template="mageworx/ordersedit/sales-order-view-history.phtml" />

    <reference name="order_tab_info">

        <action method="unsetChild"><name>order_history</name></action>

        <action method="append"><block>order_history</block></action>

    </reference>

    <!--//  Replace standard "Order History" block  -->



    <reference name="order_items">

        <action method="addColumnRender" ifconfig="mageworx_ordersmanagement/ordersedit/show_thumbnails"><column>name</column><block>adminhtml/sales_items_column_name</block><template>mageworx/ordersedit/sales-items-column-name.phtml</template></action>

        <action method="addColumnRender" ifconfig="mageworx_ordersmanagement/ordersedit/show_thumbnails"><column>name</column><block>adminhtml/sales_items_column_name_grouped</block><template>mageworx/ordersedit/sales-items-column-name.phtml</template><type>grouped</type></action>

    </reference>



    <reference name="content">

        <block type="mageworx_ordersedit/adminhtml_sales_order_edit_wrapper" name="oredrspro_js" template="mageworx/ordersedit/edit/wrapper.phtml" />

    </reference>



    <reference name="avanspayment">

        <action method="addTab">

            <name>mageworx_ordersedit_sales_order_edit_avanspayment</name>

             <block>mageworx_ordersedit/adminhtml_sales_order_edit_avanspayment</block>

        </action>

    </reference>        



</adminhtml_sales_order_view>

I have added this:

    <reference name="avanspayment">

        <action method="addTab">

            <name>mageworx_ordersedit_sales_order_edit_avanspayment</name>

             <block>mageworx_ordersedit/adminhtml_sales_order_edit_avanspayment</block>

        </action>

    </reference>

Then in: Mageworx/OrdersEdit/Block/Adminhtml/Sales/Order/Edit/Avanspayment.php i have this:

<?php

class Mageworx_OrdersEdit_Block_Adminhtml_Sales_Order_Edit_Avanspayment

    extends Mage_Adminhtml_Block_Template

    implements Mage_Adminhtml_Block_Widget_Tab_Interface

{

    protected $_chat = null;



    protected function _construct()

    {

        parent::_construct();

        $this->setTemplate('mageworx/ordersedit/edit/avanspayment.phtml');

    }



    public function getTabLabel() {

        return $this->__('Add New Tab ');

    }



    public function getTabTitle() {

        return $this->__('Add New Tab Title');

    }



    public function canShowTab() {

        return true;

    }



    public function isHidden() {

        return false;

    }



    public function getOrder(){

        return Mage::registry('current_order');

    }

} 

?>

Then in: /app/design/adminhtml/default/default/template/mageworx/ordersedit/edit/avanspayment.phtml i have added this:

This is custom text to test!

The problem is that nothing appears as new additional tab in the order view page.

Where is my mistake? I see no errors on the orders view page but the tab is not showed either.