basic support for time spend of tikets and follow-ups

helpdesk/models.py

@@ -17,6 +17,7 @@ from django.utils import timezone
 from django.utils.translation import ugettext_lazy as _, ugettext
 from io import StringIO
 import re
+import datetime
 
 import uuid
 
@@ -301,6 +302,17 @@ class Queue(models.Model):
             return u'%s <%s>' % (self.title, self.email_address)
     from_address = property(_from_address)
 
+    @property
+    def time_spent(self):
+        """Return back total time spent on the ticket. This is calculated value
+        based on total sum from all FollowUps
+        """
+        total = datetime.timedelta(0)
+        for val in self.ticket_set.all():
+            if val.time_spent:
+                total = total + val.time_spent
+        return total
+
     def prepare_permission_name(self):
         """Prepare internally the codename for the permission and store it in permission_name.
         :return: The codename that can be used to create a new Permission object.
@@ -497,6 +509,17 @@ class Ticket(models.Model):
         default=mk_secret,
     )
 
+    @property
+    def time_spent(self):
+        """Return back total time spent on the ticket. This is calculated value
+        based on total sum from all FollowUps
+        """
+        total = datetime.timedelta(0)
+        for val in self.followup_set.all():
+            if val.time_spent:
+                total = total + val.time_spent
+        return total
+
     def send(self, roles, dont_send_to=None, **kwargs):
         """
         Send notifications to everyone interested in this ticket.
@@ -771,6 +794,11 @@ class FollowUp(models.Model):
 
     objects = FollowUpManager()
 
+    time_spent = models.DurationField(
+        help_text=_("Time spent on this follow up"),
+        blank=True, null=True
+    )
+
     class Meta:
         ordering = ('date',)
         verbose_name = _('Follow-up')