feat(purchase/views.py): add purchase and refund views

purchase/views.py

@@ -1,3 +1,21 @@
-from django.shortcuts import render
+from django.shortcuts import redirect, render
+from django.urls import reverse
 
-# Create your views here.
+from home.models import CoursePage
+from purchase.models import CoursePurchase
+
+
+def mock_purchase_course(request, course_id):
+    course = CoursePage.objects.get(id=course_id)
+
+    course.mock_purchase(request.user)
+
+    return redirect(course.url)
+
+
+def mock_refund_purchase(request, purchase_id):
+    purchase = CoursePurchase.objects.get(id=purchase_id)
+
+    purchase.mock_refund()
+
+    return redirect(purchase.course.url)