fef-questionnaire/questionnaire/__init__.py

93 lines
2.3 KiB
Python

"""
questionnaire - Django Questionnaire App
========================================
Create flexible questionnaires.
Author: Robert Thomson <git AT corporatism.org>
"""
from django.conf import settings
from django.dispatch import Signal
import os, os.path
import imp
__all__ = [ 'question_proc', 'answer_proc', 'add_type', 'AnswerException',
'questionset_done', 'questionnaire_done', ]
QuestionChoices = []
QuestionProcessors = {} # supply additional information to the templates
Processors = {} # for processing answers
questionset_done = Signal(providing_args=["runinfo", "questionset"])
questionnaire_done = Signal(providing_args=["runinfo", "questionnaire"])
class AnswerException(Exception):
"Thrown from an answer processor to generate an error message"
pass
def question_proc(*names):
"""
Decorator to create a question processor for one or more
question types.
Usage:
@question_proc('typename1', 'typename2')
def qproc_blah(request, question):
...
"""
def decorator(func):
global QuestionProcessors
for name in names:
QuestionProcessors[name] = func
return func
return decorator
def answer_proc(*names):
"""
Decorator to create an answer processor for one or more
question types.
Usage:
@question_proc('typename1', 'typename2')
def qproc_blah(request, question):
...
"""
def decorator(func):
global Processors
for name in names:
Processors[name] = func
return func
return decorator
def add_type(id, name):
"""
Register a new question type in the admin interface.
At least an answer processor must also be defined for this
type.
Usage:
add_type('mysupertype', 'My Super Type [radio]')
"""
global QuestionChoices
QuestionChoices.append( (id, name) )
import questionnaire.qprocessors # make sure ours are imported first
add_type('sameas', 'Same as Another Question (put sameas=question.number in checks or sameasid=question.id)')
for app in settings.INSTALLED_APPS:
try:
app_path = __import__(app, {}, {}, [app.split('.')[-1]]).__path__
except AttributeError:
continue
try:
imp.find_module('qprocessors', app_path)
except ImportError:
continue
__import__("%s.qprocessors" % app)