Change forms.py, models.py, test_models.py and templates

- Add help text for timezone field in user registration form
- Add new method in course model to get days remaining to start a course
- Show start time and end time of a course to the students
- Disallow to enroll to a course which is not active
- Add model test for the new course method

1 files changed, 8 insertions, 0 deletions

diff --git a/yaksh/models.py b/yaksh/models.py
index f065190..2e759ee 100644
--- a/yaksh/models.py
+++ b/yaksh/models.py
@@ -722,6 +722,14 @@ class Course(models.Model):
             percent = round((count / len(modules)))
         return percent
 
+    def days_remain_to_start(self):
+        """ Get the days remaining for the start of the course """
+        if timezone.now() < self.start_enroll_time:
+            remaining_days = (self.start_enroll_time - timezone.now()).days + 1
+        else:
+            remaining_days = 0
+        return remaining_days
+
     def __str__(self):
         return self.name