'Display sum of numbers in the groups in odoo-12

I have created two fields and defined their views in the tree view. I added the attribute sum to the field view to show the sum, but it only works in the tree view, not in the group. How can I also display the sum in the groups?

This is the python part:

quantity_in = fields.Float('Quantity In', compute='get_qty_in')
quantity_out = fields.Float('Quantity Out', compute='get_qty_in')

and this is the xml part of the fields view:

<record id="stock_move_inherit_view" model="ir.ui.view">
  <field name="name">stock.move.inherit.view</field>
  <field name="model">stock.move.line</field>
  <field name="inherit_id" ref="stock.view_move_line_tree"/>
  <field name="arch" type="xml">
    <xpath expr="//field[@name='qty_done']" position="before">
      <field name="quantity_in" sum="Total In Quantity"/>
      <field name="quantity_out" sum="Total Out Quantity"/>
      <field name="quantity_total"/>
    </xpath>
  </field>
</record>

Solution 1:^[1]

Computed fields needs to be stored to make the sum work fine in the grouping.

quantity_in = fields.Float('Quantity In', compute='get_qty_in', store=True)

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Solution 1	Henry Ecker

'Display sum of numbers in the groups in odoo-12

Solution 1:[1]

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Related Questions

Solution 1:^[1]