Using attr attribute form/field (composite and, or)

Question

Good day.
I am relatively new to odoo.
This is my idea,
- if draft and pending, btn1 is invisible
-if draft or  pending, btn_1 is invisible.

My worry is how to put "and" and "or" in attr.
This is my model
status = fields.Selection(selection=[('draft', 'Creating New Reservation'), ('pending', 'Pending'),('checkedin','Checked In'),('checkedout', 'Checked Out'),('paid', 'Paid'),('cancelled', 'Cancelled')], string="Status of Reservation")   and my form button
<button name='btn1_method' string='btn1

Axel Mendoza · Answer

@Fongoh Tayong
Domains are a combination of tuples and operators '&' and '|' in a polish notation.
for 'and' is the same domain that you post because and is the default operator between domain tuples. It's the char & (& for xml) and could be represented like this:
<button name='btn1_method' string='btn1'  type='object'
attrs=" {'invisible': [*'&',*('status', '=', 'pending'),('status', '=', 'draft')]}" />   for 'or' it uses the char '|' and you could do it like:
<button name='btn2_method'

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