* fix: return empty result if no valid terms given

2005-12-13 08:42:47 +00:00
parent 606464ec98
commit aad2efc4ef
1 changed files with 4 additions and 1 deletions
@@ -39,7 +39,10 @@ class InvertedIndex(object):
    def query(self, terms, txn = None):
        def proc(txn):
            docs = [ self.get_term(x, txn) for x in terms ]
-            return reduce(lambda x,y: x.intersection(y), docs)
+            if docs:
+                return reduce(lambda x,y: x.intersection(y), docs)
+            else:
+                return set()
        return self.d.txn_proc(proc, txn)

    def list_terms(self, txn= None):