introduce "all" query terms for Field, Value and Set indexes.

src/hurry/query/__init__.py

@@ -14,4 +14,5 @@
 """
 $Id$
 """
-from hurry.query.query import And, Or, Eq, NotEq, Between, In, Ge, Le, Text
+from hurry.query.query import All, And, Or, Eq, NotEq
+from hurry.query.query import Between, In, Ge, Le, Text

src/hurry/query/query.py

@@ -217,6 +217,12 @@ def apply(self, context=None):
         return difference(all, r)
 
 
+class All(FieldTerm):
+
+    def apply(self, context=None):
+        return self.getIndex(context).apply((None, None))
+
+
 class Between(FieldTerm):
 
     def __init__(self, index_id, min_value, max_value):

src/hurry/query/query.txt

@@ -121,6 +121,13 @@ easy::
 FieldIndex Queries
 ------------------
 
+We can query for all objects indexed in this index::
+
+  >>> from hurry.query import All
+  >>> f1 = ('catalog1', 'f1')
+  >>> displayQuery(All(f1))
+  [1, 2, 3, 4, 5, 6]
+
 Now for a query where f1 equals a::
 
   >>> from hurry.query import Eq
@@ -234,13 +241,21 @@ First let's set up some new data::
   ... Content(3, ['b'], 1),
   ... Content(4, ['c', 'd'], 2),
   ... Content(5, ['b', 'c'], 2),
-  ... Content(6, ['a', 'c'], 2)]
+  ... Content(6, ['a', 'c'], 2),
+  ... Content(7, ['z'], 2),
+  ... Content(8, [], 2)]  # no value, so not indexed.
 
 And catalog them now::
 
   >>> for entry in content:
   ...     catalog.index_doc(intid.register(entry), entry)
 
+We can query for all indexes objects:
+
+  >>> from hurry.query.set import All
+  >>> displayQuery(All(f1))
+  [1, 2, 3, 4, 5, 6, 7]
+
 Now do a a 'any of' query, which returns all documents that
 contain any of the values listed::
 
@@ -306,6 +321,11 @@ And catalog them now:
   >>> for entry in content:
   ...     catalog.index_doc(intid.register(entry), entry)
 
+We query for all indexes objects::
+
+  >>> f1 = ('catalog1', 'f1')
+  >>> displayQuery(value.All(f1))
+  [1, 2, 3, 4, 5, 6]
 
 Let's now query for all objects where ``f1`` equals 'a':
 

src/hurry/query/set.py

@@ -28,6 +28,12 @@ def getIndex(self, context):
         return index
 
 
+class All(SetTerm):
+
+    def apply(self, context=None):
+        return self.getIndex(context).apply({'any': None})
+
+
 class AnyOf(SetTerm):
 
     def __init__(self, index_id, values):

src/hurry/query/tests.py

@@ -15,7 +15,7 @@
 $Id$
 """
 import unittest
-from zope.testing import doctest
+import doctest
 
 def test_suite():
     return unittest.TestSuite((

src/hurry/query/value.py

@@ -59,6 +59,12 @@ def apply(self, context=None):
         return index.apply({'any_of': values})
 
 
+class All(ValueTerm):
+
+    def apply(self, context=None):
+        return self.getIndex(context).apply({'any': None})
+
+
 class Between(ValueTerm):
 
     def __init__(self, index_id, min_value=None, max_value=None,