1
# vim: tabstop=4 shiftwidth=4 softtabstop=4
3
# Copyright 2010 OpenStack LLC.
6
# Licensed under the Apache License, Version 2.0 (the "License"); you may
7
# not use this file except in compliance with the License. You may obtain
8
# a copy of the License at
10
# http://www.apache.org/licenses/LICENSE-2.0
12
# Unless required by applicable law or agreed to in writing, software
13
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
14
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
15
# License for the specific language governing permissions and limitations
19
def limited(items, req):
20
"""Return a slice of items according to requested offset and limit.
23
req - wobob.Request possibly containing offset and limit GET variables.
24
offset is where to start in the list, and limit is the maximum number
27
If limit is not specified, 0, or > 1000, defaults to 1000.
30
offset = int(req.GET.get('offset', 0))
31
limit = int(req.GET.get('limit', 0))
34
limit = min(1000, limit)
35
range_end = offset + limit
36
return items[offset:range_end]