provide basic waiting list functionality; clear client name on checkout

git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@3424 fd906abe-77d9-0310-91a1-e0d9ade77398

organize/browser/service.py

@@ -1,5 +1,5 @@
 #
-#  Copyright (c) 2007 Helmut Merz helmutm@cy55.de
+#  Copyright (c) 2009 Helmut Merz helmutm@cy55.de
 #
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
@@ -303,7 +303,7 @@ class ServiceView(BaseView):
         context = self.context
         if not context.allowDirectRegistration:
             return False
-        return (self.capacityAvailable()
+        return (self.capacityAvailable() or self.context.waitingList
                 or self.getClientName() in context.registrations)
 
     def capacityAvailable(self):
@@ -331,8 +331,9 @@ class ServiceView(BaseView):
     def getRegistrationInfo(self, reg):
         registration = self.getRegistrations()[reg]
         state = IStateful(registration).getStateObject()
-        number=registration.number
-        return dict(number=number, state=state.name, stateTitle=state.title)
+        return dict(number=registration.number,
+                    numberWaiting=registration.numberWaiting,
+                    state=state.name, stateTitle=state.title)
 
     @Lazy
     def registeredTotalSubmitted(self):
@@ -345,6 +346,18 @@ class ServiceView(BaseView):
                 total += reg.number
         return total
 
+    @Lazy
+    def registeredTotalsSubmitted(self):
+        # TODO: clean-up temporary registrations
+        # return self.context.getNumberRegistered()
+        total = totalWaiting = 0
+        for reg in self.getRegistrations().values():
+            state = IStateful(reg).getStateObject()
+            if state.name != 'temporary':
+                total += reg.number
+                totalWaiting += reg.numberWaiting
+        return dict(number=total, numberWaiting=totalWaiting)
+
     def update(self):
         newClient = False
         nextUrl = None
@@ -424,7 +437,7 @@ class RegistrationTemplateView(BaseView):
         return (svc.category, svc.getClassification(), svc.start)
 
     def allowRegistration(self, service):
-        return (self.capacityAvailable(service)
+        return (self.capacityAvailable(service) or service.waitingList
                 or service in self.getRegisteredServices())
 
     def capacityAvailable(self, service):

organize/interfaces.py

@@ -350,6 +350,8 @@ class IRegistration(Interface):
     timeStamp = Attribute('An integer denoting the time of registration.')
     number = Attribute('The number of objects (e.g. persons) registered '
                 '- usually == 1.')
+    numberWaiting = Attribute('The number of objects registered that are '
+                'on the waiting list.')
 
 
 class IRegistrationTemplate(Interface):

organize/service.py

@@ -102,12 +102,14 @@ class Registration(object):
     implements(IRegistration)
 
     number = 1
+    numberWaiting = 0
 
-    def __init__(self, client, service, number=1):
+    def __init__(self, client, service, number=1, numberWaiting=0):
         self.client = client
         self.service = service
         self.timeStamp = int(time())
         self.number = number
+        self.numberWaiting = numberWaiting
 
 
 class PersistentRegistration(Registration, Persistent):
@@ -167,13 +169,20 @@ class Service(object):
 
     def register(self, client, number=1):
         clientName = client.__name__
+        numberWaiting = 0
+        if (self.waitingList and self.availableCapacity >= 0
+                    and number > self.availableCapacity):
+            numberWaiting = number - self.availableCapacity
+            number = self.availableCapacity
         if clientName in self.registrations:
             reg = self.registrations[clientName]
             if number != reg.number:
                 reg.number = number
                 # TODO: set timeStamp
+            if numberWaiting != reg.numberWaiting:
+                reg.numberWaiting = numberWaiting
             return reg
-        reg = self.registrationFactory(client, self, number)
+        reg = self.registrationFactory(client, self, number, numberWaiting)
         self.registrations[clientName] = reg
         return reg
 
@@ -289,7 +298,8 @@ class ClientRegistrations(object):
                     oldN = oldReg.number or 0
             else:
                 oldN = 0
-            if svc.capacity and svc.capacity > 0 and svc.availableCapacity < n - oldN:
+            if (not svc.waitingList and svc.capacity and svc.capacity > 0
+                    and svc.availableCapacity < n - oldN):
                 error = registrationErrors['capacity_exceeded']
                 entry = self.errors.setdefault(svc.token, [])
                 entry.append(error)
@@ -396,14 +406,13 @@ def getCheckoutRule(sender):
     """
     checkoutRule = Rule('checkout')
     checkoutRule.events.append(eventTypes['service.checkout'])
-    #checkoutRule.actions.append(Action('message',
-    #                  parameters=dict(messageName='feedback_text')))
     checkoutRule.actions.append(Action('sendmail',
                       parameters=dict(sender=sender,
                                       messageName='feedback_text')))
     checkoutRule.actions.append(Action('redirect',
                       parameters=dict(viewName='message_view.html',
-                                      messageName='feedback_html')))
+                                      messageName='feedback_html',
+                                      clearClient=True)))
     return checkoutRule