Odoo is the world's easiest all-in-one management software.
It includes hundreds of business apps:

CRM
e-Commerce
Księgowość
Zapasy
PoS
Projekt
MRP

All apps

Wszystkie posty Osoby Odznaki

Tagi (Zobacz wszystko)

odoo accounting v14 pos v15

O tym forum

Pomoc

compute field not working properly

python model compute technical

2 Odpowiedzi

5277 Widoki

Sagar Shah

Hi have a Image field setup for compute, and it depends on 2 fields, however I noticed when one of the 2 fields is edited it triggers compute but doesn't pass the value of other field properly and hence the compute logic fails, wanted to know if this is a known issue?

from odoo import api, models, fields
from PIL import Image
import io
import base64
import qrcode
import lnurl

class custom_info(models.Model):

_inherit = 'hr.employee'
employee_ln_address = fields.Char(string="Employee lightning address : ", required=False)
employee_ln_qr_image = fields.Image(compute="_compute_ln_qr_image",string="Employee lightning QR code")

@api.depends('image_1920','employee_ln_address')
def _compute_ln_qr_image(self):
for record in self:
record.employee_ln_qr_image=False
if record.image_1920:
logo = Image.open(io.BytesIO(base64.b64decode(record.image_1920)))
basewidth = 200
wpercent = (basewidth/float(logo.size[0]))
hsize = int((float(logo.size[1])*float(wpercent)))
logo = logo.resize((basewidth, hsize), Image.ANTIALIAS)
QRcode =qrcode.QRCode(error_correction=qrcode.constants.ERROR_CORRECT_H)
if record.employee_ln_address:
lnusr,lndomain = record.employee_ln_address.split('@')
qrmessage = 'lightning:'+lnurl.encode('https://'+lndomain+'/.well-known/lnurlp/'+lnusr)
QRcode.add_data(qrmessage)
QRcode.make()
QRcolor = 'Black'
QRimg = QRcode.make_image(fill_color=QRcolor, back_color="white").convert('RGB')# adding color to QR code
pos = ((QRimg.size[0] - logo.size[0]) // 2,(QRimg.size[1] - logo.size[1]) // 2)
QRimg.paste(logo, pos)
QRinMem = io.BytesIO()
QRimg.save(QRinMem,"JPEG")
QRinMem.seek(0)
record.employee_ln_qr_image=base64.b64encode(QRinMem.read())

Ray Carnes (ray)

I would post the code for "logic for compute" to give people more clues.

Sagar Shah

Autor

have updated the full code for compute now

Jort de Vreeze

I have done something similar for a project where I created QR codes to be printed by a label printer. What worked for me was the following:

Change the field from field.Image(compute='_compute_ln_qr_image') to field.Binary(compute='_compute_ln_qr_image')

The remainder of your code is similar like for my project code. Try to add logging (e.g., _logger.info(Image Size:{QRimg.size}') so you can check whether the QR code generated is a valid image.

In your view you should use the image widget:

[field name="employee_ln_qr_image" widget="image" readonly="True"/]

I hope this helps!

Sagar Shah

Autor

Thanks tried it but didn't work. The problem is one of the fields that the QR field depends on is a image field, I'm trying to embed the employee Avatar in the QR code, and that seems to be the problem. If I edit the Avatar and it trigger compute it works fine, but if I edit the other field on which the compute is dependent it tirggers compute method but for some reason doesn't pass the value of the other image field that it depends on

shubham shiroya

try this way:

you can use the @api.onchange decorator instead of @api.depends to trigger the compute method when the employee_ln_address field is modified. The @api.onchange decorator ensures that the compute method receives the correct value of the modified field.

@api.onchange('employee_ln_address')
def _onchange_employee_ln_address(self):
for record in self:
record.employee_ln_qr_image = False
if record.image_1920:
# Your compute logic goes here
# ...

By using the @api.onchange decorator, the _onchange_employee_ln_address method will be triggered whenever the employee_ln_address field is modified, ensuring that the compute logic receives the correct value.

Make sure to remove the @api.depends decorator from the _compute_ln_qr_image method.

Sagar Shah

Autor

Thanks, i tried onchange as well but same behavior, I am not sure but something specific to image fields, other fields i don't see any issue

Podoba Ci się ta dyskusja? Dołącz do niej!

Stwórz konto dzisiaj, aby cieszyć się ekskluzywnymi funkcjami i wchodzić w interakcje z naszą wspaniałą społecznością!

Zarejestruj się

Powiązane posty	Odpowiedzi	Widoki
How to get a person's age from his date of birth in Odoo? Rozwiązane python compute	2 maj 20	6877
What is active_id? Rozwiązane python technical	2 sty 24	13837
Loading a Model Object with data loaded from an API python model	1 mar 15	9036
v16: why Odoo raise this error - compute to get Length Rozwiązane model compute odoo16features	2 paź 23	4654
How product lines comes in sale order lines when you validate a delivery order directly from delivery? python technical v14	0 maj 21	2112

To pytanie dostało ostrzeżenie

Podoba Ci się ta dyskusja? Dołącz do niej!