New user type: temporary user

[Hironsan]

I'm thinking of dividing users into the following four types:

• Superuser
• Staff
• General user
• (New) Temporary user

Description:

• Superuser is the administrator of the Django application, not the project administrator of doccano. Basically it is created by Django's createsuperuser command.
• Staff can sign in to the admin site just like a superuser, but with more limited permissions. A superuser or a staff can create them on the admin site.
• General users cannot sign in to the admin site, but they can create projects. A superuser or a staff can create them on the admin site.
• Temporary user is a user who can neither sign in to the admin site nor create a project. This user is mainly for annotators(cloud workers). The project administrators of doccano can create them on the project members page.

The permissions per user types are as follows:

	Super User	Staff	General User	Temporary User
Admin Site
Login	✓	✓
Other operations	✓	dependes on permissions
ProjectList
Create	✓	✓	✓
List	✓	✓	✓	✓

This will help resolve Issue #920. In addition, this will allow staff and general users to create projects.

P.S.

• Within each project, the roles assigned to each user determine the permissions.
• There are three roles: Administrator, Annotator, and Auditor. The auditor is the current Approver.

	Administrator	Annotator	Auditor
ProjectDetail
View	✓	✓	✓
Update	✓
Delete	✓
LabelList
Create	✓
List	✓	✓	✓
Import	✓
LabelDetail
View	✓	✓	✓
Update	✓
Delete	✓
DocumentList
Create	✓
List	✓	✓	✓
Import	✓
Export	✓
DocumentDetail
View	✓	✓	✓
Update	✓
Delete	✓
AnnotationList
Create	✓	✓	✓
List	✓	✓	✓
AnnotationDetail
View	✓	✓	✓
Update	✓	✓	✓
Delete	✓	✓	✓
UserList
List	✓
RoeList
Create
List	✓	✓	✓
RoleMappingList
Create	✓
List	✓
RoleMappingDetail
View	✓
Update	✓
Delete	✓
Statistics
View	✓
ApproveLabels
Update	✓		✓

[br-dr3]

I do like the idea, but I think we can use more intuitive name. I don't think that "General Users" should be a good name to someone that is able to create projects. I guess this is a admin feature.

Maybe the actual names are easily to think: Admins -> Admins Approvers -> Staff and what you called General Users (Maybe third party users..) Annotators -> what you called Temporary Users

And the idea to have users been created inside Doccano frontend are awesome. I put a question recently to ask about it. #930 I didn't want to discuss, but I disagree that just because you prioritized Annotation feature, that this shouldn't be important. If a production environment be controlled by a consulting enterprise, you would need a admin to create users. If there is 1000 users and so on, this would be a big issue to have only admin creating it.

[youichiro]

I'm planning to add a new role for Temporary User. It's an annotator role that can't create projects. I can't think of a good name for it. For example, temporary_annotator? What do you think?

[Hironsan]

Candidates:

• Guest User/Annotator
• Temporary User/Annotator
• Anonymous User/Annotator

"Guest" is my favorite 🐈