Merge pull request #11 from zopefoundation/REF-91-hurry-query-intids

Add ``Ids`` term that queries for intids.

CHANGES.txt

@@ -4,7 +4,7 @@ CHANGES
 3.0.1 (unreleased)
 ------------------
 
-- Nothing changed yet.
+- Add ``Ids`` term that queries for intids.
 
 
 3.0.0 (2018-01-19)
@@ -24,7 +24,7 @@ CHANGES
 
   Major:
   o Remove unsupported transaction_cache
-  
+
   Minor:
   o Clarify HURRY_QUERY_TIMING environment and searchResults(timing=) type
   o Fix TimingAwareCaching.report() output typo

src/hurry/query/__init__.py

@@ -14,6 +14,6 @@
 """
 $Id$
 """
-from hurry.query.query import All, And, Or, Eq, NotEq, Difference, Objects
+from hurry.query.query import All, And, Or, Eq, NotEq, Difference, Objects, Ids
 from hurry.query.query import Between, In, Ge, Le, Text
 from hurry.query.query import no_results

src/hurry/query/query.py

@@ -445,6 +445,18 @@ def key(self, context=None):
         return ('objects', self.ids(context))
 
 
+class Ids(Term):
+
+    def __init__(self, *ids):
+        self.ids = ids
+
+    def apply(self, cache, context=None):
+        return IFSet(self.ids)
+
+    def key(self, context=None):
+        return ('ids', self.ids)
+
+
 class IndexTerm(Term):
 
     def __init__(self, catalog_name__and__index_name):

src/hurry/query/query.txt

@@ -777,3 +777,17 @@ queries::
   >>> from hurry.query import Objects
   >>> displayResult(Objects(content))
   [<Content "1">, <Content "2">, <Content "3">, <Content "4">, <Content "5">, <Content "6">]
+
+There is a special term that allows querying objects by intid::
+
+  >>> from hurry.query import Ids
+  >>> displayResult(Ids())
+  []
+
+  >>> all_intids = [intid.getId(x) for x in content]
+  >>> displayResult(Ids(*all_intids))
+  [<Content "1">, <Content "2">, <Content "3">, <Content "4">, <Content "5">, <Content "6">]
+
+  >>> odd_intids = [intid.getId(x) for x in content if x.id % 2]
+  >>> displayResult(Ids(*odd_intids))
+  [<Content "1">, <Content "3">, <Content "5">]