Odoo表单视图创建新表单而不是显示现有表单

Every time when I click on My module menu it jump to new form instead of showing existing, I assigned access rule to my module and disable create and edit but still didn't work, what I want is when I click on my module menu it should open an existing form or I can use domain like user_id field = user.name.Every time when I click on My module menu it ju