Changeset 5090 for main/waeup.sirp/trunk/src/waeup/sirp

Timestamp:

30 Mar 2010, 13:27:36 (15 years ago)

Author:

uli

Message:

• Fix imports.

• Add an hurry.query-like query component that supports also retrival of (less expensive to compute) BTree result sets instead of complete lists of ZODB objects.

File:

• main/waeup.sirp/trunk/src/waeup/sirp/catalog.py (modified) (1 diff)

main/waeup.sirp/trunk/src/waeup/sirp/catalog.py

@@ -1 @@
-import os
+"""Components to help cataloging and searching objects.
+"""
 import grok
-from grok import index
-from hurry.query.query import Query, Text
 from hurry.query import Eq
+from hurry.query.interfaces import IQuery
+from hurry.query.query import Query
+from zope.catalog.catalog import ResultSet
+from zope.intid.interfaces import IIntIds
+
 from waeup.sirp.app import University
 from waeup.sirp.interfaces import IQueryResultItem
 from waeup.sirp.student.interfaces import IStudent
+
+class WAeUPQuery(Query):
+     """A hurry.query-like query that supports also ``apply``.
+     """
+     grok.implements(IQuery)
+
+     def apply(self, query):
+          """Get a catalog's BTree set of intids conforming to a query.
+          """
+          return query.apply()
+
+     def searchResults(self, query):
+          """Get a set of ZODB objects conforming to a query.
+          """
+          results = self.apply(query)
+          if results is not None:
+               uidutil = getUtility(IIntIds)
+               results = ResultSet(results, uidutil)
+          return results