LIL-607 Доступ к вкладке уроки работает неправильно

apps/course/templates/course/course.html

@@ -158,13 +158,13 @@
           {% else %}
           <a
             class="course__action btn btn_lg{% if only_lessons %} btn_stroke{% else %} btn_gray{% endif %}"
-            {% if paid %}
+            {% if paid or not course.price %}
             href="{% url 'course-only-lessons' course.id %}"
             {% else %}
             data-popup=".js-popup-course-lock"
             {% endif %}
             >УРОКИ
-            {% if not paid %}
+            {% if not paid and course.price %}
             <svg class="icon icon-lock">
               <use xlink:href="{% static 'img/sprite.svg' %}#icon-lock"></use>
             </svg>

apps/course/templates/course/course_only_lessons.html

@@ -154,10 +154,10 @@
           </a>
           {% else %}
           <a
-            href="{% if paid %}{% url 'course-only-lessons' course.id %}{% else %}#{% endif %}"
+            href="{% if paid or not course.price %}{% url 'course-only-lessons' course.id %}{% else %}#{% endif %}"
             class="course__action btn btn_lg{% if only_lessons %} btn_stroke{% else %} btn_gray{% endif %}"
             >УРОКИ
-            {% if not paid %}
+            {% if not paid and course.price %}
             <svg class="icon icon-lock">
               <use xlink:href="{% static 'img/sprite.svg' %}#icon-lock"></use>
             </svg>

apps/course/views.py

@@ -190,7 +190,8 @@ class CourseView(DetailView):
         response = super().get(request, *args, **kwargs)
         context = self.get_context_data()
         if (not request.user.is_authenticated and self.object.status != Course.PUBLISHED) or\
-                (request.user.is_authenticated and request.user.role < User.AUTHOR_ROLE and self.object.author != request.user and self.only_lessons and not context['paid']):
+                (request.user.is_authenticated and request.user.role != User.ADMIN_ROLE and self.object.author != request.user
+                 and self.only_lessons and self.object.price and not context['paid']):
             raise Http404
         return response
 
@@ -292,7 +293,15 @@ class LessonView(DetailView):
 
     def get(self, request, *args, **kwargs):
         response = super().get(request, *args, **kwargs)
-        if (self.object.course.status != Course.PUBLISHED and not
+        paid = self.object.course.payments.filter(
+            user=self.request.user,
+            status__in=[
+                Pingback.PINGBACK_TYPE_REGULAR,
+                Pingback.PINGBACK_TYPE_GOODWILL,
+                Pingback.PINGBACK_TYPE_RISK_REVIEWED_ACCEPTED,
+            ],
+        ).exists()
+        if ((self.object.course.status != Course.PUBLISHED or (self.object.course.price and not paid)) and not
                 (request.user.role == User.ADMIN_ROLE or
                  self.object.course.author == request.user)):
             raise Http404