Odoo 11 store attachments to other db

问题

In Odoo 11 I want to store the attachment in a different database. So to achieve that I need to get the file once uploaded. So for that I have made my code like this

import logging
from odoo import fields
from odoo import models,api
import base64

_logger = logging.getLogger(__name__)

class AttachmentStorage(models.Model):

    _name = "attachment.storage"
    _inherit = 'ir.attachment'

    @api.model
    def _file_write(self, value, checksum):
        bin_value = base64.b64decode(value)
        printf(bin_value)
        fname, full_path = self._get_path(bin_value, checksum)
        printf(full_path)

But here when I am updating or adding any profile image of an employee(as I am using hr module) this doesn't showing any thing even I am doing printf.

So can someone tell me how to achieve this? I want to store all the attachments in the different db.

NOTE: I have installed Odoo using docker on my local system

来源：https://stackoverflow.com/questions/56544393/odoo-11-store-attachments-to-other-db