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Viewing changes to lib/lp/answers/model/question.py

[r=wallyworld][bug=816261] Move bugs subscriptions_list to apps and
        add IQuestion.canBeUnsubscribedBy

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lib/lp/answers/model/question.py
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from lp.answers.model.questionreopening import create_questionreopening
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from lp.answers.model.questionsubscription import QuestionSubscription
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from lp.app.enums import ServiceUsage
 
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from lp.app.errors import UserCannotUnsubscribePerson
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from lp.app.interfaces.launchpad import ILaunchpadCelebrities
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from lp.bugs.interfaces.buglink import IBugLinkTarget
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from lp.bugs.interfaces.bugtask import BugTaskStatus
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        Store.of(sub).flush()
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        return sub
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    def unsubscribe(self, person):
 
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    def unsubscribe(self, person, unsubscribed_by):
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        """See `IQuestion`."""
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        # See if a relevant subscription exists, and if so, delete it.
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        for sub in self.subscriptions:
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            if sub.person.id == person.id:
 
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                if not sub.canBeUnsubscribedByUser(unsubscribed_by):
 
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                    raise UserCannotUnsubscribePerson(
 
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                        '%s does not have permission to unsubscribe %s.' % (
 
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                            unsubscribed_by.displayname,
 
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                            person.displayname))
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                store = Store.of(sub)
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                sub.destroySelf()
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                store.flush()