如何在Firebase Web中创建两个用户组

Question

I am developing a web app which uses Firebase Authentication and Real-time Database. The sign-in method is via Google and then if the user is new he/she will be ask if whether he/she is a teacher or student.

Teacher: can create classrooms and add students using their user.uid. Each classroom has a unique classroom id. Can view the list of their students.

Student: can view their classroom, and classmates.

So How do I code two different types of users in Firebase for my web app? What will be the rules to use in the database?

Answer 1

[UPDATED]

You could try this the simple way:

1. Create a JSON object to store the users information in a field depends on the usage:

   • a field isTeacher of type boolean (assume you won't add other user type) or
   • a field userType of object contain all the feature types (isTeacher: boolean , isStudent: boolean , isHeadmaster:boolean , etc.) or
   • a field of userType of type string

2. Create a method or condition to check the field of the user document whether is true for a particular user type / compare string (depends which one you use) by using if or switch case

3. Under each case / condition, show the elements of the web according to their privilege.

4. After signed-in, before the page load, do the checking using the function created