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How to override field-specific saving behaviour

Hannes Smit
on 7/29/13, 12:00 PM 2,339 views

In some cases you might want to manage which values get written into the database.

Some examples: Say, I want to save a phone number which always must be in the format 'XX-XXXXXXXX' Or a zip code in the format 'XXXX XX' Or you just may want to strip certain characters like trailing spaces.

The given examples are typically 'char' fields.

Which methods or __init__ parameters of these fields can I use to hook in a sort of pre-processing method?

So I expect something like this:

def preprocess(self, cr, uid, id, name, value, context=None):
    value = value.strip()
    super(my_field, self).preprocess(cr, uid, id, name, value, context=context)
... in _columns:

    'column1': fields.char('Phone', size=11, preprocess=preprocess),

Another option I thought of was making a function field with its own fnct and fnct_inv, and with a store=True. But I'm not sure how to make this fnct method in such a way that it behaves like a normal field.

Note: I'm interested in field-specific callbacks, not in write() and create() overrides.


Grover Menacho

--Grover Menacho--
| 5 7 8
La Paz, Bolivia
--Grover Menacho--

Odoo Developer

Grover Menacho
On 7/29/13, 1:20 PM

I'm not sure if I am understanding your question, anyways you can override write or create functions.

Here you can check and modify the values that are received before storing them.

def write(self, cr, uid, ids, values, context=None):
#Check and modify what you want on values
    return super(name_class, self).write(cr, uid, ids, values, context=context)

def create(self, cr, uid, values, context=None):
#Check and modify what you want on values
    return super(name_class, self).create(cr, uid, values, context=context)

I know that. But I want a field-specific callback. (Look at the base class of fields.char and see a 'set()' method. Something like that, if that is the right place...

Hannes Smit
on 7/30/13, 5:13 AM

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Asked: 7/29/13, 12:00 PM
Seen: 2339 times
Last updated: 3/16/15, 8:10 AM