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Odoo Development: Set attributes conditionally

November 24, 2021

Attributes such as invisible can be set on fields, widgets and buttons based on a condition. By using the attrs attribute the field and condition can be passed to the element. Here is an example: attrs="{'invisible': [('active', '=', True)]}".

But how do we achive this for tree elements where attrs is not available?

The solution is simple, we are adding a inherited view that sets the property conditionally. In our scenario we want to enable the delete action only if a user is member of a specific group.

This example is based on the Odoo App Certificate Planner.

First set the delete property of tree element to false.

views/specification.xml

<odoo>
	
  <record model="ir.ui.view" id="specification_list">
    <field name="name">Specification List</field>
    <field name="model">certificate_planer.specification</field>
    <field name="arch" type="xml">
      <tree limit="200" delete="false">
        <field name="name"/>
      </tree>
    </field>
  </record>

  ...

Then add an inherited record.

  ...

  <record id="specification_delete_rule" model="ir.ui.view">
    <field name="name">specification_delete_rule</field>
    <field name="groups_id" eval="[(4,ref('group_certificate_planer_administrator'))]"/>
    <field name="model">certificate_planer.specification</field>
    <field name="inherit_id" ref="specification_list"/>
    <field name="arch" type="xml">
      <xpath expr="//tree" position='attributes'>
        <attribute name='delete'>true</attribute>
      </xpath>
    </field>
  </record>

</odoo>

With this strategy an condition can be applied to any view element.

Categories: Odoo
Tags: odoo , development , tutorial
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