Create course certification PDF view

courses/certification/views.py

@@ -3,9 +3,12 @@ from rest_framework.response import Response
 from rest_framework.decorators import action
 
 from django.views.generic import DetailView
+from django.views.generic.detail import SingleObjectMixin
 from django.urls import resolve
 from django.http import Http404
 
+from django_renderpdf.views import PDFView
+
 from courses.permissions import IsProfessorCoordinatorOrAdminPermissionOrReadOnly
 
 from courses.certification.serializers import (
@@ -246,3 +249,29 @@ class CourseCertificationDetailView(DetailView):
         url_name = resolve(self.request.path_info).url_name
 
         return super().render_to_response(context, **response_kwargs)
+
+
+class CourseCertificationPDFView(PDFView, SingleObjectMixin):
+    model = CourseCertification
+    template_name = 'certificate.html'
+    slug_field = "link_hash"
+    serializer_class = CourseCertificationSerializer
+
+    def get_context_data(self, *args, **kwargs):
+        """Pass some extra context to the template."""
+
+        self.object = self.get_object()
+        context = super().get_context_data(*args, **kwargs)
+
+        certificate = self.object
+
+        if not certificate.course_student.can_emmit_receipt():
+            raise Http404
+
+        if certificate:
+            context['cert_template'] = CertificateTemplate.objects.get(
+                course=certificate.course_student.course,
+                document_type=certificate.type,
+            )
+
+        return context
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