multiple things regarding ticketcc

- generate ticketcc_string in view_ticket() and followup_edit(), and not in ticket_desc_table.html
- added 'subscribe' button to ticket_desc_table.html, which allows user to subscribe him/herself to the ticket whilst viewing it.
- added 'HELPDESK_AUTO_SUBSCRIBE_ON_TICKET_RESPONSE' option, to automatically cc the current user if (s)he responds to a ticket.

helpdesk/settings.py

@@ -66,6 +66,9 @@ HELPDESK_FOLLOWUP_MOD = getattr(settings, 'HELPDESK_FOLLOWUP_MOD', False)
 # show custom welcome message in dashboard?
 HELPDESK_CUSTOM_WELCOME = getattr(settings, 'HELPDESK_CUSTOM_WELCOME', False)
 
+# auto-subscribe user to ticket if (s)he responds to a ticket?
+HELPDESK_AUTO_SUBSCRIBE_ON_TICKET_RESPONSE = getattr(settings, 'HELPDESK_AUTO_SUBSCRIBE_ON_TICKET_RESPONSE', False)
+
 
 
 ''' options for public pages '''

helpdesk/templates/helpdesk/ticket_desc_table.html

@@ -34,7 +34,7 @@
 
 <tr class='{% cycle rowcolors %}'>
     <th>{% trans "Copies To" %}</th>
-    <td>{% for ticketcc in ticket.ticketcc_set.all %}{{ ticketcc.display }}{% if not forloop.last %}, {% endif %}{% endfor %} <strong><a class='tooltip' href='{% url helpdesk_ticket_cc ticket.id %}'>{% trans "Manage" %}<span>{% trans "Click here to add / remove people who should receive an e-mail whenever this ticket is updated." %}</span></a></strong></td>
+    <td>{{ ticketcc_string }} <strong><a class='tooltip' href='{% url helpdesk_ticket_cc ticket.id %}'>{% trans "Manage" %}<span>{% trans "Click here to add / remove people who should receive an e-mail whenever this ticket is updated." %}</span></a></strong>{% if SHOW_SUBSCRIBE %}, <strong><a class='tooltip' href='?subscribe'>{% trans "Subscribe" %}<span>{% trans "Click here to subscribe yourself to this ticket, if you want to receive an e-mail whenever this ticket is updated." %}</span></a></strong>{% endif %}</td>
 </tr>
 
 {% if tags_enabled %}

helpdesk/views/staff.py

@@ -151,12 +151,13 @@ def followup_edit(request, ticket_id, followup_id):
                                       'public': followup.public,
                                       'new_status': followup.new_status,
                                       })
-        
+        ticketcc_string, SHOW_SUBSCRIBE = return_ticketccstring_and_show_subscribe(request.user, ticket)
         return render_to_response('helpdesk/followup_edit.html',
             RequestContext(request, {
                 'followup': followup,
                 'ticket': ticket,
                 'form': form,
+                'ticketcc_string': ticketcc_string,
         }))
     elif request.method == 'POST':
         form = EditFollowUpForm(request.POST)
@@ -211,6 +212,13 @@ def view_ticket(request, ticket_id):
         }
         return update_ticket(request, ticket_id)
 
+    if request.GET.has_key('subscribe'):
+        # Allow the user to subscribe him/herself to the ticket whilst viewing it.
+        ticketcc_string, SHOW_SUBSCRIBE = return_ticketccstring_and_show_subscribe(request.user, ticket)
+        if SHOW_SUBSCRIBE:
+            subscribe_staff_member_to_ticket(ticket, request.user)
+        return HttpResponseRedirect(reverse('helpdesk_view', args=[ticket.id]))
+
     if request.GET.has_key('close') and ticket.status == Ticket.RESOLVED_STATUS:
         if not ticket.assigned_to:
             owner = 0
@@ -229,6 +237,8 @@ def view_ticket(request, ticket_id):
 
         return update_ticket(request, ticket_id)
 
+
+    ticketcc_string, SHOW_SUBSCRIBE = return_ticketccstring_and_show_subscribe(request.user, ticket)
     return render_to_response('helpdesk/ticket.html',
         RequestContext(request, {
             'ticket': ticket,
@@ -236,10 +246,56 @@ def view_ticket(request, ticket_id):
             'priorities': Ticket.PRIORITY_CHOICES,
             'preset_replies': PreSetReply.objects.filter(Q(queues=ticket.queue) | Q(queues__isnull=True)),
             'tags_enabled': HAS_TAG_SUPPORT,
+            'ticketcc_string': ticketcc_string,
+            'SHOW_SUBSCRIBE': SHOW_SUBSCRIBE,
         }))
 view_ticket = staff_member_required(view_ticket)
 
 
+def return_ticketccstring_and_show_subscribe(user, ticket):
+    ''' used in view_ticket() and followup_edit()'''
+    # create the ticketcc_string and check whether current user is already 
+    # subscribed
+    username = user.username.upper()
+    useremail = user.email.upper()
+    strings_to_check = list()
+    strings_to_check.append(username)
+    strings_to_check.append(useremail)
+
+    ticketcc_string = ''
+    all_ticketcc = ticket.ticketcc_set.all()
+    counter_all_ticketcc = len(all_ticketcc) - 1
+    SHOW_SUBSCRIBE = True
+    for i, ticketcc in enumerate(all_ticketcc):
+        ticketcc_this_entry = str(ticketcc.display)
+        ticketcc_string = ticketcc_string + ticketcc_this_entry
+        if i < counter_all_ticketcc:
+            ticketcc_string = ticketcc_string + ', '
+        if strings_to_check.__contains__(ticketcc_this_entry.upper()):
+            SHOW_SUBSCRIBE = False
+
+    # check whether current user is a submitter or assigned to ticket
+    assignedto_username = str(ticket.assigned_to).upper()
+    submitter_email = ticket.submitter_email.upper()
+    strings_to_check = list()
+    strings_to_check.append(assignedto_username)
+    strings_to_check.append(submitter_email)
+    if strings_to_check.__contains__(username) or strings_to_check.__contains__(useremail):
+        SHOW_SUBSCRIBE = False
+
+    return ticketcc_string, SHOW_SUBSCRIBE
+
+
+def subscribe_staff_member_to_ticket(ticket, user):
+    ''' used in view_ticket() and update_ticket() '''
+    ticketcc = TicketCC()
+    ticketcc.ticket = ticket
+    ticketcc.user = user
+    ticketcc.can_view = True
+    ticketcc.can_update = True
+    ticketcc.save()
+
+
 def update_ticket(request, ticket_id, public=False):
     if not (public or (request.user.is_authenticated() and request.user.is_active and (request.user.is_staff or helpdesk_settings.HELPDESK_ALLOW_NON_STAFF_TICKET_UPDATE))):
         return HttpResponseForbidden(_('Sorry, you need to login to do that.'))
@@ -468,6 +524,12 @@ def update_ticket(request, ticket_id, public=False):
 
     ticket.save()
 
+    # auto subscribe user if enabled
+    if helpdesk_settings.HELPDESK_AUTO_SUBSCRIBE_ON_TICKET_RESPONSE:
+        ticketcc_string, SHOW_SUBSCRIBE = return_ticketccstring_and_show_subscribe(request.user, ticket)
+        if SHOW_SUBSCRIBE:
+            subscribe_staff_member_to_ticket(ticket, request.user)
+
     return return_to_ticket(request.user, helpdesk_settings, ticket)