Add ct_id to course serializer

courses/serializers.py

@@ -13,6 +13,7 @@ from .models import (
     Unit,
     Lesson
 )
+from .certification.models import CertificateTemplate
 
 
 User = get_user_model()
@@ -37,6 +38,7 @@ class CourseSerializer(serializers.ModelSerializer):
     is_user_coordinator = serializers.SerializerMethodField()
     is_assistant_or_coordinator = serializers.SerializerMethodField()
     track = serializers.SerializerMethodField()
+    ct_id = serializers.SerializerMethodField()
 
     class Meta:
         model = Course
@@ -46,7 +48,7 @@ class CourseSerializer(serializers.ModelSerializer):
                   'start_date', 'home_published', 'authors_names', 'has_started',
                   'min_percent_to_complete', 'is_user_assistant', 'is_user_coordinator',
                   'is_assistant_or_coordinator', 'professors', 'track', 'forum_id',
-                  'informations', 'description', 'lang', 'course_load')
+                  'informations', 'description', 'lang', 'course_load', 'ct_id',)
 
     @staticmethod
     def get_home_thumbnail_url(obj):
@@ -69,6 +71,12 @@ class CourseSerializer(serializers.ModelSerializer):
             return {'name': course_track.first().name, 'home_position': course_track.first().home_position }
         return {}
 
+    def get_ct_id(self, obj):
+        ct = CertificateTemplate.objects.filter(course=obj).first()
+        if ct:
+            return ct.id
+        return None
+
     def update(self, instance, validated_data):
         intro_video_data = validated_data.pop('intro_video', None)