I created my_product module. I have added few fields in product_product and product_template tables.

using the folling code I can add a new page . Now I want to fields from product_product table in the page.

I neither get any error nor see my field. What am I doing wrong ?

------

    <data>
     <record id="product_normal_form_view_inherit" model="ir.ui.view">
            <field name="name">orion.product.form</field>
            <field name="model">product.template</field>
        <field name="inherit_id" ref="product.product_template_form_view"/>
            <field name="arch" type="xml">
            <xpath expr="//page[@string='Sales']" position="after">
            <page name="orion" string="Orion">
         <group colspan="4">
                    <group>
               <field name="drawing_details" />
             </group>
        </group>
        </page>
    </xpath>     
    </field>
        </record>
     <record id="product_normal_form_view_inherit1" model="ir.ui.view">
            <field name="name">orion.product.form1</field>
            <field name="model">product.product</field>
        <field name="inherit_id" ref="product_normal_form_view_inherit"/>
            <field name="arch" type="xml">
        <field name="drawing_details" position="before">
            <field name="product.selectmodelyn" />
                </field>
        </field>
        </record>