portal/slicerequestview.py

   1 from django.template.loader      import render_to_string
   2 from django.shortcuts            import render
   3 from django.core.mail            import send_mail
   4
   5 from unfold.page                import Page
   6
   7 from manifold.core.query         import Query
   8 from manifold.manifoldapi        import execute_admin_query, execute_query
   9
  10 from portal.models               import PendingSlice
  11 from portal.actions              import authority_get_pi_emails
  12 from portal.forms                import SliceRequestForm
  13 from unfold.loginrequired        import LoginRequiredAutoLogoutView
  14 from ui.topmenu                  import topmenu_items_live, the_user
  15
  16 class SliceRequestView (LoginRequiredAutoLogoutView):
  17     def __init__ (self):
  18         self.user_email = ''
  19         self.errors = []
  20
  21     # because we inherit LoginRequiredAutoLogoutView that is implemented by redefining 'dispatch'
  22     # we cannot redefine dispatch here, or we'd lose LoginRequired and AutoLogout behaviours
  23     def post (self, request):
  24         return self.get_or_post (request, 'POST')
  25
  26     def get (self, request):
  27         return self.get_or_post (request, 'GET')
  28
  29     def get_or_post  (self, request, method):
  30         # Using cache manifold-tables to get the list of authorities faster
  31         authorities_query = Query.get('authority').select('name', 'authority_hrn')
  32         authorities = execute_admin_query(request, authorities_query)
  33         if authorities is not None:
  34             authorities = sorted(authorities)
  35
  36         user_query  = Query().get('local:user').select('email')
  37         user_email = execute_query(self.request, user_query)
  38         self.user_email = user_email[0].get('email')
  39
  40         user_query  = Query().get('user').select('user_hrn').filter_by('user_hrn','==','$user_hrn')
  41         user_hrn = execute_query(self.request, user_query)
  42         self.user_hrn = user_hrn[0].get('user_hrn')
  43
  44         page = Page(request)
  45         page.add_css_files ( [ "http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" ] )
  46
  47         if method == 'POST':
  48             self.errors = []
  49
  50             # The form has been submitted
  51             slice_name = request.POST.get('slice_name', '')
  52             authority_hrn = request.POST.get('authority_hrn', '')
  53             number_of_nodes = request.POST.get('number_of_nodes', '')
  54             purpose = request.POST.get('purpose', '')
  55             email = self.user_email
  56             user_hrn = self.user_hrn
  57             cc_myself = True
  58
  59             if (authority_hrn is None or authority_hrn == ''):
  60                 self.errors.append('Please, select an authority')
  61             # What kind of slice name is valid?
  62             if (slice_name is None or slice_name == ''):
  63                 self.errors.append('Slice Name is mandatory')
  64
  65             if (purpose is None or purpose == ''):
  66                 self.errors.append('Purpose is mandatory')
  67
  68             if not self.errors:
  69                 ctx = {
  70                     'email': email,
  71                     'slice_name': slice_name,
  72                     'authority_hrn': authority_hrn,
  73                     'number_of_nodes': number_of_nodes,
  74                     'purpose': purpose,
  75                 }
  76                 s = PendingSlice(
  77                     slice_name      = slice_name,
  78                     user_hrn        = user_hrn,
  79                     authority_hrn   = authority_hrn,
  80                     number_of_nodes = number_of_nodes,
  81                     purpose         = purpose
  82                 )
  83                 s.save()
  84
  85                 # The recipients are the PI of the authority
  86                 recipients = authority_get_pi_emails(request, authority_hrn)
  87
  88                 if cc_myself:
  89                     recipients.append(email)
  90                 msg = render_to_string('slice-request-email.txt', ctx)
  91                 #print "email, msg, email, recipients", email , msg, email, recipients
  92                 send_mail("Onelab user %s requested a slice"%email , msg, email, recipients)
  93
  94                 return render(request,'slice-request-ack-view.html') # Redirect after POST
  95
  96         template_env = {
  97           'topmenu_items': topmenu_items_live('Request a slice', page),
  98           'errors': self.errors,
  99           'slice_name': request.POST.get('slice_name', ''),
 100           'authority_hrn': request.POST.get('authority_hrn', ''),
 101           'number_of_nodes': request.POST.get('number_of_nodes', ''),
 102           'purpose': request.POST.get('purpose', ''),
 103           'email': self.user_email,
 104           'user_hrn': self.user_hrn,
 105           'cc_myself': True,
 106           'authorities': authorities,
 107         }
 108         template_env.update(page.prelude_env ())
 109         return render(request, 'slicerequest_view.html',template_env)
 110