oe7.解决自定义附件字段下载时无文件名

https://www.odoo.com/forum/Help-1/question/One2Many-Attachment-Field-Download-Error-38407

   I'm in Dan's team. I managed to fix this bug by editing /addons/web/controllers/main.py file. Search the saveas_ajax function. Arround the line nr 1307 you will find this:

    if filename_field:
        fields.append(filename_field)
    if data:
        res = { field: data }
    elif id:
        res = Model.read([int(id)], fields, context)[0]

edit it to this:

    if filename_field:
        fields.append(filename_field)
    if data:
        res = { field: data }        # FIX
        if filename_field:
            filename_name = Model.read([int(id)], [filename_field], context)
            res[filename_field] = filename_name and filename_name[0] and filename_name[0][filename_field] or ''
    elif id:
        res = Model.read([int(id)], fields, context)[0]