#summary Answer entity model
#labels Phase-Design,Contents-Skeleton,Design-Model

_*Eventually, this topic should be populated by the output of*_ `pydoc`.

{{{
class Answer(db.Model):
  """Model of a specific Answer to a Question in a specific Review.

  An Answer entity participates in a number of relationships:

   question)  a required many:1 relationship, where each of many Answers is
     a specific answer to a single Question.  An Answer must always be
     associated with a Question in order to be interpreted. 

     The back-reference in the Question model is a Query named 'answers'.  It
     is currently unclear how useful this back-reference will be, since the
     same question could be used in multiple different Review "templates".
     Given this, 'answers' currently only exists for completeness.

   review)  a required many:1 relationship, where each of many Answers to
     different Questions represents the answer set of a specific Review.
     The back-reference in the Review model is a Query named 'answers' which
     represents all of the specific answers to questions in that Review.

  short:  db.StringProperty storing the "short" answer to the  question;
    the interpretation of this value depends on the Question entity
    referred to by 'question'.  Answers can be indexed, filtered, and
    sorted by their "short" answer.  Depending on the Question type, some
    Answers will use only 'short', some only 'long', and some both.

  long:  db.TextProperty storing the "long" answer to the question; the
    interpretation of this value depends on the Question entity referred
    to by 'question'.

  picks:  db.ListProperty of short strings from the list of possible
    picks in the question.pick_choices list.
  """
  question = db.ReferenceProperty(reference_class=Question, required=True,
                                  collection_name="answers")

  review = db.ReferenceProperty(reference_class=Review, required=True,
                                collection_name="answers")

  short = db.StringProperty()
  long = db.TextProperty()
  picks = db.ListProperty(item_type=str)
}}}

----
_Copyright 2008 Google Inc._
_This work is licensed under a_
[http://soc.googlecode.com/svn/wiki/html/licenses/cc-by-attribution-2_5.html Creative Commons Attribution 2.5 License].
[http://creativecommons.org/licenses/by/2.5/ http://soc.googlecode.com/svn/wiki/html/licenses/cc-by-2_5-88x31.png]