Allow programming groups to score exercises remotely

app/controllers/remote_evaluation_controller.rb

@@ -54,6 +54,7 @@ class RemoteEvaluationController < ApplicationController
     validation_token = remote_evaluation_params[:validation_token]
     if (remote_evaluation_mapping = RemoteEvaluationMapping.find_by(validation_token:))
       @current_user = remote_evaluation_mapping.user
+      @current_contributor = remote_evaluation_mapping.programming_group || remote_evaluation_mapping.user
       @submission = Submission.create(build_submission_params(cause, remote_evaluation_mapping))
       feedback = @submission.calculate_score(remote_evaluation_mapping.user)
       {message: I18n.t('exercises.editor.run_success'), status: 201, feedback:}
@@ -80,7 +81,7 @@ class RemoteEvaluationController < ApplicationController
     files_attributes = remote_evaluation_params[:files_attributes]
     submission_params = remote_evaluation_params.except(:validation_token)
     submission_params[:exercise] = remote_evaluation_mapping.exercise
-    submission_params[:user] = remote_evaluation_mapping.user
+    submission_params[:contributor] = current_contributor
     submission_params[:study_group_id] = remote_evaluation_mapping.study_group_id
     submission_params[:cause] = cause
     submission_params[:files_attributes] =

app/controllers/submissions_controller.rb

@@ -358,17 +358,17 @@ class SubmissionsController < ApplicationController
   end
 
   def create_remote_evaluation_mapping
-    user = @submission.user
-    exercise_id = @submission.exercise_id
+    programming_group = current_contributor if current_contributor.programming_group?
 
     remote_evaluation_mapping = RemoteEvaluationMapping.create(
-      user:,
-      exercise_id:,
+      user: current_user,
+      programming_group:,
+      exercise: @submission.exercise,
       study_group_id: session[:study_group_id]
     )
 
     # create .co file
-    path = "tmp/#{user.id}.co"
+    path = "tmp/#{current_user.id}.co"
     # parse validation token
     content = "#{remote_evaluation_mapping.validation_token}\n"
     # parse remote request url

app/models/remote_evaluation_mapping.rb

@@ -5,6 +5,7 @@ class RemoteEvaluationMapping < ApplicationRecord
   include Creation
   before_create :generate_token, unless: :validation_token?
   belongs_to :exercise
+  belongs_to :programming_group, optional: true
   belongs_to :study_group, optional: true
 
   def generate_token