From e7962bb00d575059de002c6bf0a72ee752f26388 Mon Sep 17 00:00:00 2001
From: Ivlev Denis <di-erz@yandex.ru>
Date: Tue, 30 Jan 2018 13:40:11 +0300
Subject: [PATCH] Add comments handler

---
 apps/course/views.py | 57 ++++++++++++++++++++++++++++++++++++++++----
 project/urls.py      |  3 ++-
 2 files changed, 55 insertions(+), 5 deletions(-)

diff --git a/apps/course/views.py b/apps/course/views.py
index 466f9b54..6521837f 100644
--- a/apps/course/views.py
+++ b/apps/course/views.py
@@ -1,10 +1,10 @@
 from django.contrib.auth.decorators import login_required
 from django.http import JsonResponse
-from django.template import loader
-from django.views.generic import View, DetailView, ListView
+from django.template import loader, Context, Template
+from django.views.generic import View, CreateView, DetailView, ListView
 from django.views.decorators.csrf import csrf_exempt
 from django.views.decorators.http import require_http_methods
-from .models import Course, Like, Lesson
+from .models import Course, Like, Lesson, CourseComment, LessonComment
 from .filters import CourseFilter
 
 
@@ -18,7 +18,7 @@ def likes(request, course_id):
         return JsonResponse({
             'success': False,
             'errors': ['Course with id f{cource_id} not found']
-        })
+        }, status=400)
     else:
         course_user_likes = course.likes.filter(user=request.user)
         if course_user_likes.exists():
@@ -37,6 +37,55 @@ def likes(request, course_id):
         })
 
 
+@login_required
+@csrf_exempt
+@require_http_methods(['POST'])
+def coursecomment(request, course_id):
+    try:
+        course = Course.objects.get(id=course_id)
+    except Course.DoesNotExist:
+        return JsonResponse({
+            'success': False,
+            'errors': ['Course with id f{cource_id} not found']
+        }, status=400)
+    else:
+        reply_to = request.POST.get('reply_id', None)
+        comment = request.POST.get('comment', '')
+        if not comment:
+            return JsonResponse({
+                'success': False,
+                'errors': ['Comment can not be empty']
+            }, status=400)
+
+        if not reply_to:
+            coursecomment = CourseComment.objects.create(
+                author=request.user,
+                content=comment,
+                course=course,
+            )
+        else:
+            try:
+                _coursecomment = CourseComment.objects.get(id=reply_to)
+            except CourseComment.DoesNotExist:
+                return JsonResponse({
+                    'success': False,
+                    'errors': ['CourseComment with id f{reply_to} not found']
+                }, status=400)
+            else:
+                coursecomment = CourseComment.objects.create(
+                    author=request.user,
+                    content=comment,
+                    course=course,
+                    parrent=_coursecomment,
+                )
+        ctx = {'node': coursecomment}
+        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 495632dd..0822252b 100644
--- a/project/urls.py
+++ b/project/urls.py
@@ -18,7 +18,7 @@ from django.urls import path, include
 from django.views.generic import TemplateView
 from django.conf import settings
 
-from apps.course.views import CoursesView, likes, CourseView, LessonView
+from apps.course.views import CoursesView, likes, coursecomment, CourseView, LessonView
 
 urlpatterns = [
     path('admin/', admin.site.urls),
@@ -26,6 +26,7 @@ urlpatterns = [
     path('courses/', CoursesView.as_view(), name='courses'),
     path('course/<int:pk>/', CourseView.as_view(), name='course'),
     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('', TemplateView.as_view(template_name="templates/lilcity/main.html"), name='index'),
 ]