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# Copyright 2009 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
""" Karma for the Answer Tracker. """
__metaclass__ = type
__all__ = [
'assignKarmaUsingQuestionContext',
]
from canonical.database.sqlbase import block_implicit_flushes
from lp.answers.enums import QuestionAction
from lp.registry.interfaces.distribution import IDistribution
from lp.registry.interfaces.person import IPerson
from lp.registry.interfaces.product import IProduct
def assignKarmaUsingQuestionContext(person, question, actionname):
"""Assign Karma with the given actionname to the given person.
Use the given question's context as the karma context.
"""
person.assignKarma(
actionname, product=question.product,
distribution=question.distribution,
sourcepackagename=question.sourcepackagename)
@block_implicit_flushes
def question_created(question, event):
"""Assign karma to the user which created <question>."""
assignKarmaUsingQuestionContext(
question.owner, question, 'questionasked')
@block_implicit_flushes
def question_modified(question, event):
"""Check changes made to <question> and assign karma to user if needed."""
user = IPerson(event.user)
old_question = event.object_before_modification
if old_question.description != question.description:
assignKarmaUsingQuestionContext(
user, question, 'questiondescriptionchanged')
if old_question.title != question.title:
assignKarmaUsingQuestionContext(
user, question, 'questiontitlechanged')
QuestionAction2KarmaAction = {
QuestionAction.REQUESTINFO: 'questionrequestedinfo',
QuestionAction.GIVEINFO: 'questiongaveinfo',
QuestionAction.SETSTATUS: None,
QuestionAction.COMMENT: 'questioncommentadded',
QuestionAction.ANSWER: 'questiongaveanswer',
QuestionAction.CONFIRM: None,
QuestionAction.EXPIRE: None,
QuestionAction.REJECT: 'questionrejected',
QuestionAction.REOPEN: 'questionreopened',
}
@block_implicit_flushes
def question_comment_added(questionmessage, event):
"""Assign karma to the user which added <questionmessage>."""
question = questionmessage.question
karma_action = QuestionAction2KarmaAction.get(questionmessage.action)
if karma_action:
assignKarmaUsingQuestionContext(
questionmessage.owner, question, karma_action)
def get_karma_context_parameters(context):
"""Return the proper karma context parameters based on the object."""
# XXX flacoste 2007-07-13 bug=125849:
# This should go away once bug #125849 is fixed.
params = dict(product=None, distribution=None)
if IProduct.providedBy(context):
params['product'] = context
elif IDistribution.providedBy(context):
params['distribution'] = context
else:
raise AssertionError('Unknown karma context: %r' % context)
return params
@block_implicit_flushes
def faq_created(faq, event):
"""Assign karma to the user who created the FAQ."""
context = get_karma_context_parameters(faq.target)
faq.owner.assignKarma('faqcreated', **context)
@block_implicit_flushes
def faq_edited(faq, event):
"""Assign karma to user who edited a FAQ."""
user = IPerson(event.user)
old_faq = event.object_before_modification
context = get_karma_context_parameters(faq.target)
if old_faq.content != faq.content or old_faq.title != faq.title:
user.assignKarma('faqedited', **context)
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