article.py 文件源码

def diff(request, revision_id, other_revision_id=None):

    revision = get_object_or_404(models.ArticleRevision, id=revision_id)

    if not other_revision_id:
        other_revision = revision.previous_revision

    baseText = other_revision.content if other_revision else ""
    newText = revision.content

    differ = difflib.Differ(charjunk=difflib.IS_CHARACTER_JUNK)
    diff = differ.compare(baseText.splitlines(1), newText.splitlines(1))

    other_changes = []

    if not other_revision or other_revision.title != revision.title:
        other_changes.append((_('New title'), revision.title))

    return dict(diff=list(diff), other_changes=other_changes)

# TODO: Throw in a class-based view