Use offset_linkid instead of offset to scan >1000 entities.
this is a first-cut. It works in all the ways I could make earlier
versions fail. It passes link_id as URL parameters. It also has a new
class LinkCreator which makes the main body of getListContents even easier
to write.
I wasn't sure if link_id's could have non alphanumeric characters; if so, they
need to be URL encoded/decoded.
I also need to go and remove any mention of raw offsets now, because we don't
use them.
I believe I've talked about this approach with a few of you and it sounded
reasonable. Feel free to roll-back/fix/amend/comment-for-me-to-fix. This is
my first big-logic-change to Melange.
Patch by: Dan Bentley
#!/usr/bin/python2.5
#
# Copyright 2008 the Melange authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""This module contains the Response Model."""
__authors__ = [
'"Todd Larsen" <tlarsen@google.com>',
]
from google.appengine.ext import db
import soc.models.linkable
import soc.models.quiz
import soc.models.user
class Response(soc.models.linkable.Linkable):
"""Model of a Response to a Quiz.
A Response is the "collection point" for a set of specific Answers to the
Questions that make up a Quiz.
In addition to the explicit ReferenceProperties in the Response Model, a
Response entity participates in these relationships:
answers) a 1:many relationship between Answer entities and this
Response. Each Answer points to the Response to which it is a part.
The collection of Answers that make up a Response is implemented as
the 'answers' back-reference Query of the Answer model 'response'
reference.
proposal) an optional 1:1 relationship where a Proposal placed its
Answers to a Quiz associated with the Proposal. This relation is
implemented as the 'proposal' back-reference Query of the Proposal
Model 'response' reference.
"""
#: a required many:1 relationship between Responses and a Quiz that
#: defines what Questions for which each Response collects Answers
#: (that is, there can be many Responses to the same Quiz)
quiz = db.ReferenceProperty(reference_class=soc.models.quiz.Quiz,
required=True, collection_name="responses")
#: a required many:1 relationship with a User that indicates which User
#: submitted the Response (answered the Questions in the Quiz)
respondent = db.ReferenceProperty(
reference_class=soc.models.user.User, required=True,
collection_name="responses")
# TODO(tlarsen): should 'respondent' be a ReferenceProperty to some Role
# instead?