import code

[matthijs/upstream/django-ldapdb.git] / ldapdb / query.py

diff --git a/ldapdb/query.py b/ldapdb/query.py
new file mode 100644 (file)
index 0000000..aa615c2
--- /dev/null
+++ b/ldapdb/query.py
@@ -0,0 +1,74 @@
+# -*- coding: utf-8 -*-
+# 
+# django-ldapdb
+# Copyright (C) 2009 Bolloré telecom
+# See AUTHORS file for a full list of contributors.
+# 
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+# -*- coding: utf-8 -*-
+
+from copy import deepcopy
+import ldap
+
+from django.db.models.query import QuerySet as BaseQuerySet
+from django.db.models.query_utils import Q
+from django.db.models.sql import BaseQuery
+from django.db.models.sql.where import WhereNode
+from granadilla.db import connection as ldap_connection
+
+def compile(q):
+    filterstr = ""
+    for item in q.children:
+        if isinstance(item, WhereNode):
+            filterstr += compile(item)
+            continue
+        table, column, type, x, y, values = item
+        if q.negated:
+            filterstr += "(!(%s=%s))" % (column,values[0])
+        else:
+            filterstr += "(%s=%s)" % (column,values[0])
+    return filterstr
+
+class Query(BaseQuery):
+    def results_iter(self):
+        # FIXME: use all object classes
+        filterstr = '(objectClass=%s)' % self.model._meta.object_classes[0]
+        filterstr += compile(self.where)
+        filterstr = '(&%s)' % filterstr
+        attrlist = [ x.db_column for x in self.model._meta.local_fields if x.db_column ]
+
+        try:
+            vals = ldap_connection.search_s(
+                self.model._meta.dn,
+                ldap.SCOPE_SUBTREE,
+                filterstr=filterstr,
+                attrlist=attrlist,
+            )
+        except:
+            raise self.model.DoesNotExist
+
+        for dn, attrs in vals:
+            row = [dn]
+            for field in iter(self.model._meta.fields):
+                row.append(attrs.get(field.db_column, None))
+            yield row
+
+class QuerySet(BaseQuerySet):
+    def __init__(self, model=None, query=None):
+        if not query:
+            query = Query(model, None)
+        super(QuerySet, self).__init__(model, query)
+