add restful actions for tutorials

app/assets/javascripts/lectures.coffee

@@ -305,11 +305,16 @@ $(document).on 'turbolinks:load', ->
       $('#newLectureSort').hide()
     return
 
+  $(document).on 'click', '#cancelNewTutorial', ->
+    $('.tutorialRow[data-id="0"]').remove()
+    return
+
   return
 
 # clean up everything before turbolinks caches
 $(document).on 'turbolinks:before-cache', ->
   $('.lecture-tag').removeClass('badge-warning').addClass('badge-light')
   $('.lecture-lesson').removeClass('badge-info').addClass('badge-secondary')
   $(document).off 'change', '#lecture_course_id'
+  $(document).off 'click', '#cancelNewTutorial'
   return

app/controllers/tutorials_controller.rb

@@ -0,0 +1,42 @@
+# TutorialsController
+class TutorialsController < ApplicationController
+  before_action :set_tutorial, only: [:edit, :destroy, :update, :cancel_edit]
+  authorize_resource
+
+  def new
+    @tutorial = Tutorial.new
+    lecture = Lecture.find_by_id(params[:lecture_id])
+    @tutorial.lecture = lecture
+  end
+
+  def create
+    @tutorial = Tutorial.new(tutorial_params)
+    @tutorial.save
+  end
+
+  def edit
+  end
+
+  def update
+    @tutorial.update(tutorial_params)
+  end
+
+  def destroy
+    @tutorial.destroy
+  end
+
+  def cancel_edit
+  end
+
+  private
+
+  def set_tutorial
+    @tutorial = Tutorial.find_by_id(params[:id])
+    return if @tutorial.present?
+    redirect_to :root, alert: I18n.t('controllers.no_tutorial')
+  end
+
+  def tutorial_params
+    params.require(:tutorial).permit(:title, :tutor_id, :lecture_id)
+  end
+end

app/models/ability.rb

@@ -104,6 +104,13 @@ def initialize(user)
 
       cannot :read, Term
 
+      can :new, Tutorial
+
+      can [:edit, :create, :update, :destroy,
+           :cancel_edit_tutorial], Tutorial do |tutorial|
+        tutorial.lecture.edited_by?(user)
+      end
+
       cannot :read, User
       can :update, User do |u|
         user == u

app/views/lectures/edit/_exercise_classes.html.erb

@@ -19,6 +19,36 @@
        aria-labelledby="heading"
        data-parent="#lectureAccordion">
     <div class="card-body">
+      <div class="row mb-3">
+        <div class="col-12 text-center">
+          <%= link_to t('admin.tutorial.new'),
+                      new_tutorial_path(params: { lecture_id: lecture.id }),
+                      class: 'btn btn-sm btn-primary',
+                      remote: true %>
+        </div>
+      </div>
+      <div class="row border border-botttom py-2 mx-3"
+           id="tutorialListHeader">
+        <div class="col-4">
+          <h6>
+            <%= t('basics.title') %>
+          </h6>
+        </div>
+        <div class="col-4">
+          <h6>
+            <%= t('basics.tutor') %>
+          </h6>
+        </div>
+        <div class="col-4">
+          <h6>
+            <%= t('basics.action') %>
+          </h6>
+        </div>
+      </div>
+      <% lecture.tutorials.each do |t| %>
+        <%= render partial: 'tutorials/row',
+                   locals: { tutorial: t } %>
+      <% end %>
     </div>
   </div>
 </div>

app/views/tutorials/_form.html.erb

@@ -0,0 +1,33 @@
+<%= form_with model: tutorial do |f| %>
+  <div class="form-row tutorialRow py-2 mx-3 border"
+       data-id="<%= tutorial.id.to_i %>">
+    <div class="form-group col-4">
+      <%= f.text_field :title,
+                       class: 'form-control' %>
+    </div>
+    <div class="form-group col-4">
+      <%= f.select :tutor_id,
+                   options_for_select(User.select_editors, tutorial.tutor_id),
+                   {},
+                   { class: 'form-control' } %>
+    </div>
+    <div class="form-group col-4">
+      <%= f.submit t('buttons.save'),
+                   class: 'btn btn-sm btn-primary ml-2' %>
+      <% if tutorial.persisted? %>
+        <%= link_to t('buttons.cancel'),
+                    cancel_edit_tutorial_path(tutorial),
+                    class: 'btn btn-sm btn-secondary',
+                    remote: true %>
+      <% else %>
+        <button class="btn btn-sm btn-secondary"
+                id="cancelNewTutorial"
+                role="button">
+          <%= t('buttons.cancel') %>
+        </button>
+      <% end %>
+    </div>
+  </div>
+  <%= f.hidden_field :lecture_id,
+                     value: tutorial.lecture.id %>
+<% end %>

app/views/tutorials/_row.html.erb

@@ -0,0 +1,32 @@
+<div class="row tutorialRow py-2 mx-3 border" data-id="<%= tutorial.id.to_i %>">
+  <div class="col-4">
+    <%= tutorial.title %>
+  </div>
+  <div class="col-4">
+    <%= tutorial.tutor.name %>
+  </div>
+  <div class="col-4">
+    <%= link_to edit_tutorial_path(tutorial),
+                class: 'text-dark',
+                data: { toggle: 'tooltip',
+                        placement: 'botttom' },
+                style: 'text-decoration: none;',
+                title: t('buttons.edit'),
+                remote: true do %>
+      <i class="far fa-lg fa-edit mr-2">
+      </i>
+    <% end %>
+    <%= link_to tutorial_path(tutorial),
+                class: 'text-dark',
+                data: { toggle: 'tooltip',
+                        placement: 'botttom',
+                        confirm: t('confirmation.generic') },
+                style: 'text-decoration: none;',
+                title: t('buttons.delete'),
+                method: :delete,
+                remote: true do %>
+      <i class="fas fa-lg fa-trash-alt">
+      </i>
+    <% end %>
+  </div>
+</div>

app/views/tutorials/cancel_edit.coffee

@@ -0,0 +1,3 @@
+$('.tutorialRow[data-id="<%= @tutorial.id %>')
+  .replaceWith('<%= j render partial: "tutorials/row",
+                      locals: { tutorial: @tutorial } %>')

app/views/tutorials/create.coffee

@@ -0,0 +1,3 @@
+$('.tutorialRow[data-id="0"')
+  .replaceWith('<%= j render partial: "tutorials/row",
+                      locals: { tutorial: @tutorial } %>')

app/views/tutorials/destroy.coffee

@@ -0,0 +1 @@
+$('.tutorialRow[data-id="<%= @tutorial.id %>"').remove()

app/views/tutorials/edit.coffee

@@ -0,0 +1,3 @@
+$('.tutorialRow[data-id="<%= @tutorial.id %>"')
+  .replaceWith('<%= j render partial: "tutorials/form",
+                      locals: { tutorial: @tutorial } %>')

app/views/tutorials/new.coffee

@@ -0,0 +1,3 @@
+$('#tutorialListHeader')
+  .after('<%= j render partial: "tutorials/form",
+                       locals: { tutorial: @tutorial } %>')

app/views/tutorials/update.coffee

@@ -0,0 +1,3 @@
+$('.tutorialRow[data-id="<%= @tutorial.id %>')
+  .replaceWith('<%= j render partial: "tutorials/row",
+                      locals: { tutorial: @tutorial } %>')

config/locales/de.yml

@@ -1744,6 +1744,8 @@ de:
       export_probes: Quizdaten exportieren
       start: Startdatum
       end: Enddatum
+    tutorial:
+      new: 'Neues Tutorium anlegen'
   profile:
     account: 'Account'
     name: 'Anzeigename'
@@ -2485,6 +2487,7 @@ de:
     programs: 'Studiengänge'
     visibility: 'Zusatzmaterialien'
     exercise_classes: 'Übungsbetrieb'
+    tutor: 'TutorIn'
   access:
     unpublished: 'unveröffentlicht'
     all: 'frei'
@@ -2670,6 +2673,7 @@ de:
     no_subject: 'Ein Fach mit der angeforderten id existiert nicht.'
     no_program: 'Ein Studiengang mit der angeforderten id existiert nicht.'
     no_division: 'Ein Teilbereich mit der angeforderten id existiert nicht.'
+    no_tutorial: 'Ein Tutorium mit der angeforderten id existiert nicht.'
   activerecord:
     errors:
       no_valid_url: 'Das ist keine gültige URL.'

config/locales/en.yml

@@ -1633,6 +1633,8 @@ en:
       export_probes: Export Probes
       start: Start Date
       end: End Date
+    tutorial:
+      new: 'Add tutorial'
   profile:
     account: 'Account'
     name: 'Display name'
@@ -2344,6 +2346,7 @@ en:
     programs: 'Programs'
     visibility: 'Additional material'
     exercise_classes: 'Exercise Classes'
+    tutor: 'Tutor'
   warnings:
     save_before: 'Before you continue, you need to save or discard your changes'
     unsaved_changes: >
@@ -2525,6 +2528,7 @@ en:
     no_answer: 'There is no subject with this id.'
     no_program: 'There is no program with this id.'
     no_division: 'There is no division with this id.'
+    no_tutorial: 'There is no tutorial with this id.'
   activerecord:
     errors:
       no_valid_url: 'This is not a valid URL.'

config/routes.rb

@@ -280,6 +280,11 @@
                            as: 'postprocess_tags'
   resources :tags
 
+  get 'tutorials/:id/cancel_edit', to: 'tutorials#cancel_edit',
+                                   as: 'cancel_edit_tutorial'
+
+  resources :tutorials, only: [ :new, :edit, :create, :update, :destroy]
+
   get 'sections/list_tags', to: 'sections#list_tags',
                              as: 'list_section_tags'
   get 'sections/:id/display', to: 'sections#display',