Add week navigation to time sheet view

tailbone/views/timesheet.py

@@ -41,10 +41,20 @@ class TimeSheetView(View):
     """
 
     def __call__(self):
+        date = None
+        if 'date' in self.request.GET:
+            try:
+                date = datetime.datetime.strptime(self.request.GET['date'], '%Y-%m-%d').date()
+            except ValueError:
+                self.request.session.flash("The specified date is not valid: {}".format(self.request.GET['date']), 'error')
+        if not date:
+            date = localtime(self.rattail_config).date()
+        return self.render(date)
+
+    def render(self, date):
         employee = self.request.user.employee
         assert employee
-        today = localtime(self.rattail_config).date()
-        sunday = get_sunday(today)
+        sunday = get_sunday(date)
 
         weekdays = [sunday]
         for i in range(1, 7):
@@ -103,9 +113,9 @@ class TimeSheetView(View):
 
 def includeme(config):
 
+    config.add_tailbone_permission('timesheet', 'timesheet.view', "View Time Sheet")
+
     # current user's time sheet
     config.add_route('timesheet', '/timesheet/')
     config.add_view(TimeSheetView, route_name='timesheet',
-                    renderer='/timesheet/index.mako',
-                    permission='timesheet.view')
-    config.add_tailbone_permission('timesheet', 'timesheet.view', "View Time Sheet")
+                    renderer='/timesheet/index.mako', permission='timesheet.view')