add context route

Author: loiswells97

app/controllers/api/projects_controller.rb

@@ -5,7 +5,7 @@
 module Api
   class ProjectsController < ApiController
     before_action :authorize_user, only: %i[create update index destroy]
-    before_action :load_project, only: %i[show update destroy]
+    before_action :load_project, only: %i[show update destroy context]
     before_action :load_projects, only: %i[index]
     load_and_authorize_resource
     before_action :verify_lesson_belongs_to_school, only: :create
@@ -52,6 +52,10 @@ def destroy
       head :ok
     end
 
+    def context
+      render :context, formats: [:json]
+    end
+
     private
 
     def verify_lesson_belongs_to_school

app/models/ability.rb

@@ -85,7 +85,7 @@ def define_school_teacher_abilities(user:, school:)
     can(%i[create], Project) do |project|
       school_teacher_can_manage_project?(user:, school:, project:)
     end
-    can(%i[read update], Project, school_id: school.id, lesson: { visibility: %w[teachers students] })
+    can(%i[read update context], Project, school_id: school.id, lesson: { visibility: %w[teachers students] })
     can(%i[read], Project,
         remixed_from_id: Project.where(school_id: school.id, remixed_from_id: nil, lesson_id: Lesson.where(school_class_id: ClassTeacher.where(teacher_id: user.id).select(:school_class_id))).pluck(:id))
   end
@@ -96,7 +96,7 @@ def define_school_student_abilities(user:, school:)
     # Ensure no access to ClassMember resources, relationships otherwise allow access in some circumstances.
     can(%i[read], Lesson, school_id: school.id, visibility: 'students', school_class: { students: { student_id: user.id } })
     can(%i[read create update], Project, school_id: school.id, user_id: user.id, lesson_id: nil)
-    can(%i[read], Project, lesson: { school_id: school.id, school_class: { students: { student_id: user.id } } })
+    can(%i[read context], Project, lesson: { school_id: school.id, school_class: { students: { student_id: user.id } } })
     can(%i[show_finished set_finished], SchoolProject, project: { user_id: user.id, lesson_id: nil }, school_id: school.id)
   end
 

app/views/api/projects/context.json.jbuilder

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+json.call(
+  @project,
+  :identifier,
+  :school_id,
+  :lesson_id
+)
+
+json.class_id(@project.lesson.school_class_id)

config/routes.rb

@@ -34,6 +34,7 @@
 
     resources :projects, only: %i[index show update destroy create] do
       get :finished, on: :member, to: 'school_projects#show_finished'
+      get :context , on: :member, to: 'projects#context'
       put :finished, on: :member, to: 'school_projects#set_finished'
       resource :remix, only: %i[show create], controller: 'projects/remixes'
       resources :remixes, only: %i[index], controller: 'projects/remixes'