Max length Rule doesn't work for {exp:channel:form}

Question

I have this form tag

{exp:channel:form
    channel="xxxxx"
    class="form-horizontal row-fluid"
    date_picker="no"
    error_handling="inline"
    include_assets="no"
    include_jquery="no"
    return="/foo/bar/"
    rules:title="required|max_length[5]"
}

I am trying to limit title to 5 characters. However, it does not seem to work since I was able to post titles with more than 5 characters without the form complaining.

Answer 1

The documentation (user guide, channel form) does seem to mention (custom) fields. (a quick look at the source of channel:form lib indicates the same).

You could validate length with the help of a little bit of javascript, and/or report a bug (feature request) at EllisLab that rules should also apply to default fields.