Hi,

This is because, you defined domain or attributes for one2many field inside the tree view

INCORRECT :

<page string="Purchase Request">

<field name="order_line"> ----------- (one2many field)

<tree string="Purchase Req Order Lines" editable="bottom">

<field name="part_name" attrs="{'readonly':[('state','not in',('draft',))]}"/>

<field name="price_unit" attrs="{'readonly':[('state','not in',('draft',))]}"/>

<field name="sub_total" attrs="{'readonly':[('state','not in',('draft',))]}" />

</tree>

</field>

</page>

Correct :

<page string="Purchase Request">

<field name="order_line" attrs="{'readonly':[('state','not in',('draft',))]}"> ----------- (one2many field)

<tree string="Purchase Req Order Lines" editable="bottom">

<field name="part_name" />

<field name="price_unit"/>

<field name="sub_total" />

</tree>

</field>

</page>

- state field is present only in main class. Hope this may solve your problem

Hi,

You just need to define "state" field into tree/form view of the HR Contract model.

I hope this issue will resolve.

I know this is an old question, I'm answering if someone else happens to experience this.

I had the states attribute set in my class for another field, this attribute expects the state field to be defined in the file or though inheritance but I didn't have it and the view was not able to load because of this.