Add api v8 endpoint for deleting users

Author: Redande

app/controllers/api/v8/users_controller.rb

@@ -191,6 +191,28 @@ def update
         }, status: :bad_request
       end
 
+      def destroy
+        unauthorize_guest! if current_user.guest?
+
+        user = User.find(params[:id])
+        authorize! :destroy, user
+
+        if user.destroy
+          RecentlyChangedUserDetail.where(username: user.login).delete_all
+          RecentlyChangedUserDetail.deleted.create!(
+            new_value: true,
+            email: user.email,
+            username: user.login,
+            user_id: user.id
+          )
+          Doorkeeper::AccessToken.where(resource_owner_id: user.id).delete_all
+
+          render json: { success: true, message: 'User deleted.' }
+        else
+          render json: { success: false, errors: user.errors }, status: :bad_request
+        end
+      end
+
       def set_password_managed_by_courses_mooc_fi
         only_admins!
 

config/routes.rb

@@ -55,7 +55,7 @@
         resources :recently_changed_user_details, only: :index
       end
 
-      resources :users, only: %i[show create update] do
+      resources :users, only: %i[show create update destroy] do
         resources :request_deletion, only: [:create], module: :users
         resources :assistantships, module: :users, only: :index
         resources :teacherships, module: :users, only: :index