How to check if 3 conditions meet using '&'?

Question

I need some field to be invisible if 3 conditions are met

How do I express that ?
I tried putting the '&' before, in between, several times, one time

It never works

Thanks

Mukundayi Mpapa T. · Accepted Answer

By default '&' is applied. this code should work if what you want is all these conditions to be true at the same time. But if you want either of this condition to be true, then use '|' instead. Then the syntax would be ['|','|',A,B,C].
I have noticed that in your sample code your are putting field in '' . Don't do that, write field name without '' , the same as you did for False.
So your code would be
attrs="{'invisible': [('firstField '!=', somevalueForFirstField),
('secondField', '!=', someVal

Apiuser · Answer

Hello,
'|' and '&' can be a little tricky.
Assuming you are on Odoo14, the correct way with 2 elements in your code would be:
attrs="{'invisible': ['&',
('firstField '!=', 'somevalueForFirstField'),
('secondField', '!=', 'someValueForSecondField')
]}" So i haven't tryed but maybe the third one needs another '&' in between the second and third element or the first and the second?

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