# -*- coding: utf-8 -*-
#
# django-ldapdb
-# Copyright (C) 2009-2010 Bolloré telecom
+# Copyright (c) 2009-2010, Bolloré telecom
+# All rights reserved.
+#
# 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.
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice,
+# this list of conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
#
-# 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.
+# 3. Neither the name of Bolloré telecom nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
from copy import deepcopy
from django.db.models.sql.where import WhereNode as BaseWhereNode, Constraint as BaseConstraint, AND, OR
import ldapdb
-
+from ldapdb.backends.ldap import compiler
from ldapdb.models.fields import CharField
def get_lookup_operator(lookup_type):
"""
An object that can be passed to WhereNode.add() and knows how to
pre-process itself prior to including in the WhereNode.
+
+ NOTES:
+ - we redefine this class, because when self.field is None calls
+ Field().get_db_prep_lookup(), which short-circuits our LDAP-specific code.
"""
- def process(self, lookup_type, value):
+ def process(self, lookup_type, value, connection):
"""
Returns a tuple of data suitable for inclusion in a WhereNode
instance.
try:
if self.field:
- params = self.field.get_db_prep_lookup(lookup_type, value)
+ params = self.field.get_db_prep_lookup(lookup_type, value,
+ connection=connection, prepared=True)
db_type = self.field.db_type()
else:
- params = CharField().get_db_prep_lookup(lookup_type, value)
+ params = CharField().get_db_prep_lookup(lookup_type, value,
+ connection=connection, prepared=True)
db_type = None
except ObjectDoesNotExist:
raise EmptyShortCircuit
obj = Constraint(obj.alias, obj.col, obj.field)
super(WhereNode, self).add((obj, lookup_type, value), connector)
- def as_sql(self):
+ def as_sql(self, qn=None, connection=None):
bits = []
for item in self.children:
- if isinstance(item, WhereNode):
- bits.append(item.as_sql())
+ if hasattr(item, 'as_sql'):
+ sql, params = item.as_sql(qn=qn, connection=connection)
+ bits.append(sql)
continue
+
constraint, lookup_type, y, values = item
comp = get_lookup_operator(lookup_type)
- if hasattr(constraint, "col"):
- # django 1.2
- clause = "(%s%s%s)" % (constraint.col, comp, values)
+ if lookup_type == 'in':
+ equal_bits = [ "(%s%s%s)" % (constraint.col, comp, value) for value in values ]
+ clause = '(|%s)' % ''.join(equal_bits)
else:
- # django 1.1
- (table, column, db_type) = constraint
- equal_bits = [ "(%s%s%s)" % (column, comp, value) for value in values ]
- if len(equal_bits) == 1:
- clause = equal_bits[0]
- else:
- clause = '(|%s)' % ''.join(equal_bits)
- if self.negated:
- bits.append('(!%s)' % clause)
- else:
- bits.append(clause)
+ clause = "(%s%s%s)" % (constraint.col, comp, values)
+
+ bits.append(clause)
+
+ if not len(bits):
+ return '', []
+
if len(bits) == 1:
- return bits[0]
+ sql_string = bits[0]
elif self.connector == AND:
- return '(&%s)' % ''.join(bits)
+ sql_string = '(&%s)' % ''.join(bits)
elif self.connector == OR:
- return '(|%s)' % ''.join(bits)
+ sql_string = '(|%s)' % ''.join(bits)
else:
raise Exception("Unhandled WHERE connector: %s" % self.connector)
+ if self.negated:
+ sql_string = ('(!%s)' % sql_string)
+
+ return sql_string, []
+
class Query(BaseQuery):
- def results_iter(self):
- # FIXME: use all object classes
- filterstr = '(objectClass=%s)' % self.model.object_classes[0]
- filterstr += self.where.as_sql()
- filterstr = '(&%s)' % filterstr
- attrlist = [ x.db_column for x in self.model._meta.local_fields if x.db_column ]
+ def __init__(self, *args, **kwargs):
+ super(Query, self).__init__(*args, **kwargs)
+ self.connection = ldapdb.connection
+
+ def _ldap_filter(self):
+ filterstr = ''.join(['(objectClass=%s)' % cls for cls in self.model.object_classes])
+ sql, params = self.where.as_sql()
+ filterstr += sql
+ return '(&%s)' % filterstr
+ def get_count(self, using):
try:
vals = ldapdb.connection.search_s(
self.model.base_dn,
- ldap.SCOPE_SUBTREE,
- filterstr=filterstr,
- attrlist=attrlist,
+ self.model.search_scope,
+ filterstr=self._ldap_filter(),
+ attrlist=[],
)
- except:
- raise self.model.DoesNotExist
-
- # perform sorting
- if self.extra_order_by:
- ordering = self.extra_order_by
- elif not self.default_ordering:
- ordering = self.order_by
- else:
- ordering = self.order_by or self.model._meta.ordering
- def getkey(x):
- keys = []
- for k in ordering:
- attr = self.model._meta.get_field(k).db_column
- keys.append(x[1].get(attr, '').lower())
- return keys
- vals = sorted(vals, key=lambda x: getkey(x))
-
- # process results
- for dn, attrs in vals:
- row = []
- for field in iter(self.model._meta.fields):
- if field.attname == 'dn':
- row.append(dn)
- else:
- row.append(attrs.get(field.db_column, None))
- yield row
+ except ldap.NO_SUCH_OBJECT:
+ return 0
+
+ number = len(vals)
+
+ # apply limit and offset
+ number = max(0, number - self.low_mark)
+ if self.high_mark is not None:
+ number = min(number, self.high_mark - self.low_mark)
+
+ return number
+
+ def get_compiler(self, using=None, connection=None):
+ return compiler.SQLCompiler(self, ldapdb.connection, using)
+
+ def has_results(self, using):
+ return self.get_count(using) != 0
class QuerySet(BaseQuerySet):
- def __init__(self, model=None, query=None):
+ def __init__(self, model=None, query=None, using=None):
if not query:
- query = Query(model, None, WhereNode)
- super(QuerySet, self).__init__(model, query)
+ query = Query(model, WhereNode)
+ super(QuerySet, self).__init__(model=model, query=query, using=using)
+
+ def delete(self):
+ "Bulk deletion."
+ try:
+ vals = ldapdb.connection.search_s(
+ self.model.base_dn,
+ self.model.search_scope,
+ filterstr=self.query._ldap_filter(),
+ attrlist=[],
+ )
+ except ldap.NO_SUCH_OBJECT:
+ return
+
+ # FIXME : there is probably a more efficient way to do this
+ for dn, attrs in vals:
+ ldapdb.connection.delete_s(dn)
projects / matthijs / upstream / django-ldapdb.git / blobdiff