deform_reduction.py

#!/usr/bin/env python


import colander
import deform
from deform.widget import TextAreaWidget, SequenceWidget


class AnswerEditSchema(colander.Schema):
    answer_title = colander.SchemaNode(
        colander.String(),
        validator=colander.Length(1, 384),
        title=u"Title",
        missing=u'',
        widget=deform.widget.TextAreaWidget(),
    )

class QuestionEditSchema(colander.Schema):
    question_title = colander.SchemaNode(
        colander.String(),
        validator=colander.Length(2),
        title=u"Title",
        widget=deform.widget.TextAreaWidget(),
    )
    answers = colander.SchemaNode(
        colander.Sequence(),
        AnswerEditSchema(
            title=u"Answer",
            name=u"answer"
        ),
        widget=SequenceWidget(min_len=2),
        title=u"Answers",
    )

schema = QuestionEditSchema().bind()
form = deform.Form(schema=schema)
post_values = [('_charset_', u'UTF-8'), ('question_title', u'english title'), ('__start__', u'answers:sequence'), ('__start__', u':mapping'), ('title', u''), ('__end__', u':mapping'), ('__start__', u':mapping'), ('title', u'english wrong answer'), ('__end__', u':mapping'), ('__end__', u'answers:sequence'), ('submit', u'submit')]

app_struct = form.validate(post_values)
# app_struct = {'answers': [{'answer_title': 'fnord1'}, {'answer_title': u'english wrong answer'}], 'question_title': 'fnord2'}
print 'app_struct:\t', app_struct
app_struct['answers'][0]['answer_title'] = 'fnord1'
app_struct['question_title'] = 'fnord2'
print 'new app struct:\t', app_struct
rendered = form.render(app_struct)
assert 'fnord1' in rendered, "form.render() does not respect app_struct['answers'][0]['answer_title']"
assert 'fnord2' in rendered, "form.render() does not respect app_struct['question_title']"