Hello,

I'm using Odoo10. I'm trying to make a new tree view and add a button. When I click on this button I'd like to open a view.
But I have an error and I can't find any answer in the manual or on line.

Here is the piece of code that generate the error :

<record model="ir.ui.view" id="mrp_prod_tree_view">
    <field name="name">mrp.prod.tree</field>
    <field name="model">mrp.bom.line</field>
    <field name="type">tree</field>
    <field name="arch" type="xml">
        <tree string="Bill of Materials" editable="bottom" version="7.0">
            <field name="sequence" invisible="1"/>
            <field name="product_id"/>
            <field name="product_qty"/>
            <button name="open_form" string="Open Form" type="object" icon="fa-pencil" class="oe_highlight"/>
        </tree>
    </field>
</record>

The python code :

@api.multi
def open_form(self):
    print(self.id)
    if self.id:
        return {
            'view_mode': 'form',
            'view_type': 'form',
            'res_model': 'mrp.production',
            'res_id': self.id,
            'type': 'ir.actions.act_window',
            'target': 'current',
            'context': self.env.context
        }
    else:
        return False

The error is :

TypeError: dict.field.attrs.modifiers is undefined