How to find specific path using Odoo 10 Xpath - xpath

Question

<group>
<field name="tax_id" widget="many2many_tags" domain="[('type_tax_use','=','sale'),('company_id','=',parent.company_id)]"
attrs="{'readonly': [('qty_invoiced', '>', 0)]}"/>
<label for="customer_lead"/>
<div>
<field name="customer_lead" class="oe_inline"/> days
</div>
<label for="analytic_tag_ids"/>
<div>
<field name="analytic_tag_ids" widget="many2many_tags"/>
</div>
</group>
</group>
############WANT TO INSERT HERE
<label for="name"/>
<field name="name"/>
<div groups="base.group_no_one">
<label for="invoice_lines"/>
<field name="invoice_lines"/>
</div>
<field name="state" invisible="1"/>
This is in sale_view.xml
I have tried
xpath expr="//label[#for='name'//field name='name']" position='before'
and also tried various other paths and the full path too
/odoo/record[7]/field[3]/form/sheet/notebook/page[1]/field[1]/form/group
and
/odoo/record[7]//form[2]/group
I do not understand why it cannot find this path and why does not accept a string as selector.
EDIT:
<record id="view_order_form" model="ir.ui.view">
<field name="model">sale.order</field>
<field name="inherit_id" ref="sale.view_order_form"/>
<field name="arch" type="xml">
<xpath expr="//form//form//label[#for='name']" position="before">
<div groups="base,group_no_one">
<label for="l_ids"/>
<field name="l_ids"/>
</div>
</xpath>
<field name="partner_id" position="after">
<button name="abc" string="abc" type="object"
class="oe_inline fa fa-arrow-right oe_link"/>
</field>
</field>
</record>
This is the Error:
Error context:
View `sale.order form`
[view_id: 687, xml_id: promo.view_order_form, model: sale.order, parent_id: 508]
2016-11-07 06:43:03,556 22642 CRITICAL odoo10 odoo.service.server: Failed to initialize database `odoo10`.
Traceback (most recent call last):
File "/home/maharshi/workspace/odoo-10.0/odoo/service/server.py", line 898, in preload_registries
registry = Registry.new(dbname, update_module=update_module)
File "/home/maharshi/workspace/odoo-10.0/odoo/modules/registry.py", line 78, in new
odoo.modules.load_modules(registry._db, force_demo, status, update_module)
File "/home/maharshi/workspace/odoo-10.0/odoo/modules/loading.py", line 333, in load_modules
force, status, report, loaded_modules, update_module)
File "/home/maharshi/workspace/odoo-10.0/odoo/modules/loading.py", line 235, in load_marked_modules
loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks)
File "/home/maharshi/workspace/odoo-10.0/odoo/modules/loading.py", line 177, in load_module_graph
env['ir.ui.view']._validate_module_views(module_name)
File "/home/maharshi/workspace/odoo-10.0/odoo/addons/base/ir/ir_ui_view.py", line 1171, in _validate_module_views
self.raise_view_error("Can't validate view:\n%s" % (e.message or repr(e)), vid)
File "/home/maharshi/workspace/odoo-10.0/odoo/addons/base/ir/ir_ui_view.py", line 445, in raise_view_error
raise ValueError(message)
ValueError: Can't validate view:
External ID must be fully qualified
Error context:
View `sale.order form`
This is the problem with most of the path i have tried to use.

Answer 1

It should be:
<label for="name" position="before">
<!-- your xml here -->
</label>
or
<xpath expr="//form//form//label[#for='name']" position="before">
<!-- your xml here -->
</xpath>
Edit:
Your record should look something like this:
<record id="view_order_form" model="ir.ui.view">
<field name="name">my.sale.order.form</field>
<field name="model">sale.order</field>
<field name="inherit_id" ref="sale.view_order_form" />
<field name="arch" type="xml">
<!-- one of the above here -->
</field>
</record