idea.py 文件源码

def delete_idea(request):
    idea_id = request.matchdict['id']
    idea = Idea.get_instance(idea_id)

    if not idea:
        raise HTTPNotFound("Idea with id '%s' not found." % idea_id)
    if isinstance(idea, RootIdea):
        raise HTTPBadRequest("Cannot delete root idea.")
    num_childrens = len(idea.children)
    if num_childrens > 0:
        raise HTTPBadRequest("Idea cannot be deleted because it still has %d child ideas." % num_childrens)
    num_extracts = len(idea.extracts)
    if num_extracts > 0:
        raise HTTPBadRequest("Idea cannot be deleted because it still has %d extracts." % num_extracts)
    for link in idea.source_links:
        link.is_tombstone = True
    idea.is_tombstone = True
    # Maybe return tombstone() ?
    request.response.status = HTTPNoContent.code
    return HTTPNoContent()