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How to load an PIL.Image element in a Binary field?

denied permissions binary

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3055 Представления

Gaston Carrera

Hello!,

I have a binary fields and i need to fill it with a Image previously edited with PIL library, so for that i override default_get() function,

mapa=fields.Binary('')

@api.model

def default_get(self, fields):

resul = super(ModelMap, self).default_get(fields)

filepath='/odoo/odoo-server/addons/my_module/static/src/img/'

mapa = Image.open(filepath+'Map_odoo.png').convert('RGB')

**here i process mapa object**

until here its all ok, but now i try first:

mapa.save(filepath+'Mapa_odoo_temp.png')

resul['mapa']=filepath+'Mapa_odoo_temp.png'

but doesnt work, raise a "Permission denied" because i cannot create that file , not in the module path and in any other path either, and idk how solve this...

fo that i try another way,

map2=open(filepath+"Mapa_odoo_temp.png", "wb")

map2.write(base64.decodebytes(mapa))

map2.close()

resul['mapa']=filepath+'Mapa_odoo_temp.png'

but doesnt work too

so finally try giving the image directly

resul['mapa']=mapa

but this dont crash but dont display the image "the image cannot be loaded" or something similar.

Could somebody tell me how i could do? so thanks.

Cybrosys Techno Solutions Pvt.Ltd

Лучший ответ

Hi,

To fill a binary field with an image processed using the PIL library in Odoo, you need to convert the image to a base64 encoded string and then assign it to the binary field.

Here's how you can modify your default_get function:

from PIL import Image

import base64

from io import BytesIO

from odoo import api, fields, models

class ModelMap(models.Model):

_name = 'model.map'

mapa = fields.Binary('Map Image')

@api.model

def default_get(self, fields):

resul = super(ModelMap, self).default_get(fields)

filepath = '/odoo/odoo-server/addons/my_module/static/src/img/'

with Image.open(filepath + 'Map_odoo.png').convert('RGB') as mapa:

mapa = mapa.resize((100, 100))

buffer = BytesIO()

mapa.save(buffer, format='PNG')

image_base64 = base64.b64encode(buffer.getvalue()).decode('utf-8')

resul['mapa'] = image_base64

return result

Hope it helps

Gaston Carrera

Автор

Yes! its perfect, so thanks. its solved.

Gaston Carrera

Автор

Sorry i need to ask again, because this work, but dont apply the changes when i do "mapa.save(buffer, format='PNG')"... you know what can be?

Gaston Carrera

Автор

add info: if i apply a "resize((64,64))" after all yes this make effect, but for some reason dont read good the ImageDraw chages (apply lines) and some changes pixel-by-pixel that i made in the image in array mode.
Important to say that all this proces work fine when i do out of odoo, in a python script directly

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