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imagesodoo12.0
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Paulo Matos

Hi everyone,

I have a field of type image in Odoo 12, declared as:

image = fields.Binary("Image", attachment=True,)

On the form view I added the code for the user to choose an image.

What I need to do is, on both create and write methods, check if there is an image attached to the field and if not, set a default image to that field.

What I have tried (for write method as an example):

@api.model
def write(self, vals, context=None
        if not vals.get(self.image, False):
        get_image = "/mymodule/static/img/noimage.jpg"
        vals['image'] = get_image
return super(mymodule_model, self).write(vals)

Using this code i get the error: AttributeError: 'list' object has no attribute 'get'

also tried..

    @api.model
    def write(self, vals, contect=None):
        if (self.image == False):
            get_imae = "/mymodule/static/img/noimage.jpg"
            vals['image'] = get_image
     return super(mymodule_model, self).write(vals)

...and does not work either!

How can I test if the image field is empty and if so, have Odoo to save a default image to the database.

Thank you in advance

Regards

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Mitul Shingala
Best Answer

Hello 

try with below code, this will helps you.

from odoo import api, fields, models,  tools
from odoo.modules import get_module_resource
import base64

class your_class(models.Model):
    _name = 'your.class'
    
    @api.model
    def _get_default_image_value(self):
        image = False
        img_path = get_module_resource('your_modulename', 'static/img', 'avatar.png') # your default image path
        if img_path:
            with open(img_path, 'rb') as f: # read the image from the path
                image = f.read()
        if image: # if the file type is .jpg then you don't need this whole if condition.
            image = tools.image_colorize(image) 
        return tools.image_resize_image_big(base64.b64encode(image))
    
    @api.model
    def create(self, vals):
        if not vals.get('image'):
            vals['image'] = self._get_default_image_value()
        return super(your_class, self).create(vals)
    
    @api.multi
    def write(self, vals):
        res = super(your_class, self).write(vals)
        if not self.image:
            self.image = self._get_default_image_value()
        return res

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Paulo Matos
Author

Thank you @Mitul

I had to remove the line "image = tools.image_colorize(image)". Using this line, Odoo generates an error: on the "image = tools.image_colorize(image)". The error is: "ValueError: bad transparency mask".

I think it's related to the fact that I am using a .jpg and not a .png image file.

Can you please comment your code on "_get_default_image_value" so I can understand what exactly it does?

Thank you in advance. +1 for you.

Mitul Shingala

i have update my answer.

Paulo Matos
Author

Great @Mitul. Thank you once again

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Pablo Guerra
Best Answer

check this code

if not vals.get('image', False):

or

if self.image == False:


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