what does attachment=True do odoo 13

Question

I created a custom module in which I have this field

record_file = fields.Binary(string='file', attachment=True, help='Upload the file')

from what I understand attachment=True should save my images or pdfs to ir.attachment but am not seeing any there

am I doing something wrong

Answer 1

You are not doing something wrong, ir.attachment records are hidden when the value of res_field (a Char field) is set.

When you upload the file and save, an attachment is created and the value of the res_field is set to record_file which makes it invisible under Attachments.

You can check that the methods _search and read_group was overridden to add res_field=False in the domain if not present.

Note that the default value for the attachment parameter is True so you do not need to useattachment=True.

Edit:

From Binary field documentation:

attachment (bool) – whether the field should be stored as ir_attachment or in a column of the model’s table (default: True).