from odoo import models, fields class HrDocument(models.Model): _name = 'hr.document' _description = 'Documents Template ' name = fields.Char(string='Document Name', required=True, copy=False, help='You can give your' 'Document name here.') note = fields.Text(string='Note', copy=False, help="Note") attach_id = fields.Many2many('ir.attachment', 'attach_rel', 'doc_id', 'attach_id3', string="Attachment", help='You can attach the copy of your document', copy=False)