From f0be7241b51ae0ca935483d936915246afda5172 Mon Sep 17 00:00:00 2001
From: Ivlev Denis <di-erz@yandex.ru>
Date: Wed, 31 Jan 2018 17:15:53 +0300
Subject: [PATCH] LIL-120. Add lesson comments view

---
 apps/course/views.py | 49 ++++++++++++++++++++++++++++++++++++++++++++
 project/urls.py      |  2 ++
 2 files changed, 51 insertions(+)

diff --git a/apps/course/views.py b/apps/course/views.py
index 38d3f921..8f5c7d14 100644
--- a/apps/course/views.py
+++ b/apps/course/views.py
@@ -87,6 +87,55 @@ def coursecomment(request, course_id):
         })
 
 
+@login_required
+@csrf_exempt
+@require_http_methods(['POST'])
+def lessoncomment(request, Lesson):
+    try:
+        lesson = Lesson.objects.get(id=lesson_id)
+    except Lesson.DoesNotExist:
+        return JsonResponse({
+            'success': False,
+            'errors': ['Lesson with id f{lesson_id} not found']
+        }, status=400)
+    else:
+        reply_to = request.POST.get('reply_id', 0)
+        comment = request.POST.get('comment', '')
+        if not comment:
+            return JsonResponse({
+                'success': False,
+                'errors': ['Comment can not be empty']
+            }, status=400)
+
+        if not int(reply_to):
+            lessoncomment = LessonComment.objects.create(
+                author=request.user,
+                content=comment,
+                course=course,
+            )
+        else:
+            try:
+                _lessoncomment = LessonComment.objects.get(id=reply_to)
+            except LessonComment.DoesNotExist:
+                return JsonResponse({
+                    'success': False,
+                    'errors': ['CourseComment with id f{reply_to} not found']
+                }, status=400)
+            else:
+                lessoncomment = LessonComment.objects.create(
+                    author=request.user,
+                    content=comment,
+                    course=course,
+                    parent=_lessoncomment,
+                )
+        ctx = {'node': lessoncomment, 'user': request.user}
+        html = loader.render_to_string('course/blocks/comment.html', ctx)
+        return JsonResponse({
+            'success': True,
+            'comment': html,
+        })
+
+
 class CourseView(DetailView):
     model = Course
     context_object_name = 'course'
diff --git a/project/urls.py b/project/urls.py
index 701135a6..30854945 100644
--- a/project/urls.py
+++ b/project/urls.py
@@ -21,6 +21,7 @@ from django.conf import settings
 from apps.course.views import (
     CoursesView, likes, coursecomment, 
     CourseView, LessonView, SearchView,
+    lessoncomment,
 )
 from apps.user.views import UserView
 
@@ -32,6 +33,7 @@ urlpatterns = [
     path('course/<int:course_id>/like', likes, name='likes'),
     path('course/<int:course_id>/comment', coursecomment, name='coursecomment'),
     path('lesson/<int:pk>/', LessonView.as_view(), name='lesson'),
+    path('lesson/<int:lesson_id>/comment', lessoncomment, name='lessoncomment'),
     path('search/', SearchView.as_view(), name='search'),
     path('user/<int:pk>/', UserView.as_view(), name='user'),
     path('', TemplateView.as_view(template_name="templates/lilcity/main.html"), name='index'),