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module DeclarativePolicy
PREFERRED_SCOPE_KEY = :"DeclarativePolicy.preferred_scope"
class << self
def with_preferred_scope(scope, &b)
Thread.current[PREFERRED_SCOPE_KEY], old_scope = scope, Thread.current[PREFERRED_SCOPE_KEY]
yield
ensure
Thread.current[PREFERRED_SCOPE_KEY] = old_scope
end
def preferred_scope
Thread.current[PREFERRED_SCOPE_KEY]
end
def user_scope(&b)
with_preferred_scope(:user, &b)
end
def subject_scope(&b)
with_preferred_scope(:subject, &b)
end
def preferred_scope=(scope)
Thread.current[PREFERRED_SCOPE_KEY] = scope
end
end
end
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