fix handling of US dates in all cases

src/pfwbged/collection/overrides.zcml

@@ -19,6 +19,14 @@
     for="*"
     />
 
+  <browser:page
+    name="querybuildernumberofresults"
+    class=".searchview.QueryBuilder"
+    permission="zope2.View"
+    attribute="number_of_results"
+    for="*"
+    />
+
   <browser:page
     name="querybuilderjsonconfig"
     class=".searchview.RegistryConfiguration"

src/pfwbged/collection/searchview.py

@@ -406,20 +406,26 @@ class ContentListingView(BrowserView):
 
 
 class QueryBuilder(plone.app.querystring.querybuilder.QueryBuilder):
-    def _makequery(self, *args, **kwargs):
-        for i, param in enumerate(kwargs.get('query', [])):
+    def __call__(self, query, *args, **kwargs):
+        for i, param in enumerate(query):
             if param.get('o', '').startswith('plone.app.querystring.operation.date'):
                 date = param.get('v')
                 try:
                     param = dict(param.copy())
                     param['v'] = datetime.datetime.strptime(date, '%d/%m/%Y').strftime('%Y-%m-%d')
-                    kwargs.get('query')[i] = param
+                    query[i] = param
                 except ValueError:
                     pass
-        results = plone.app.querystring.querybuilder.QueryBuilder._makequery(self, *args, **kwargs)
-        if isinstance(results, ContentListing):
+        return plone.app.querystring.querybuilder.QueryBuilder.__call__(self,
+                query, *args, **kwargs)
+
+    def _makequery(self, query, *args, **kwargs):
+        results = plone.app.querystring.querybuilder.QueryBuilder._makequery(self, query, *args, **kwargs)
+        if isinstance(results, ContentListing) and kwargs.get('limit') != 1:
             # results may have been padded with None, but ContentListing
             # doesn't like that.
+            # we do not touch the list in the casse of limit == 1 as it's used
+            # to compute the number of results, and we want the correct number.
             results._basesequence = [x for x in results._basesequence if x is not None]
         return results