我设置的数据库由普通用户和具有两种用户类型（具有不同权限）的管理员访问。我应该有2张ER图吗？我已经解决的关系如下：
user m books n bookings
user m views n fixtures
user m creates n orders
user m views n results
user m creates 1 user
admin 1 adds m blogs
admin 1 manages m bookings
admin 1 adds m fixtures
admin 1 creates m orders
admin 1 updates m results
admin 1 creates 1 user ````