Changeset 9196 for main/waeup.kofa/trunk/src/waeup/kofa/hostels/hostel.py

Timestamp:

18 Sep 2012, 10:42:09 (12 years ago)

Author:

Henrik Bettermann

Message:

Show number of occupied beds on hostels page.

Add clearHostel method. Not yet tested.

File:

• main/waeup.kofa/trunk/src/waeup/kofa/hostels/hostel.py (modified) (1 diff)

main/waeup.kofa/trunk/src/waeup/kofa/hostels/hostel.py

@@ -40 +40 @@
         target = self.__name__
         return grok.getSite()['hostels'].logger_info(ob_class,target,comment)
+
+    @property
+    def bed_statistics(self):
+        total = len(self.keys())
+        booked = 0
+        for value in self.values():
+            if value.owner != NOT_OCCUPIED:
+                booked += 1
+        return {'booked':booked, 'total':total}
+
+    def clearHostel(self):
+        """Remove all beds.
+
+        This methods is pretty fast and optimized. Use it instead of
+        removing all items manually yourself.
+        """
+        # This internal function is implemented in C and thus much
+        # faster as we could do it in pure Python.
+        self._SampleContainer__data.clear()
+        # The length attribute is 'lazy'. See `zope.container` for details.
+        # This way we make sure, the next time len() is called, it returns
+        # the real value and not a cached one.
+        del self.__dict__['_BTreeContainer__len']
 
     def addBed(self, bed):