Do you get the same behavior when removing the ckeditor widget from the field? Your validator worked for me and the __call__ method was hit.
On Jul 16, 5:07 pm, MikeEllis <[email protected]> wrote: > I've got a controller that presents the user with a ckeditor field > that lets them use a limited set of html markup. The editor returns > an empty paragraph if they press Submit without typing anything, ie, > '<p></p>' , and my app needs to reject that. So I wrote a custom > validator as follows: > > _striptags = re.compile(r'<[^<]*?/?>') > _nbsp = re.compile(r' ') > > def isEmptyHtml(text): > """ Checks to see if text is empty after removing > HTML tags and leading/trailing whitespace incl. newlines. > """ > t = _striptags.sub('',text) > return 0 == len(_nbsp.sub('',t).strip()) > > class IS_NOT_EMPTY_HTML(Validator): > def __init__(self, error_message='Enter some text'): > debug('in __init__') > self.error_message = error_message > > def __call__(self, value): > debug('value=%s'%value) > if isEmptyHtml(value): > debug('empty!') > return (value, self.error_message) > else: > debug('not empty') > return (value, None) > > It's a little ugly, but it seems to do what I need and appears to work > correctly when I test it on the command line. > > Now here's the problem. When I try to use it in a form, an instance > gets assigned to the field but the instance never gets called. I see > the log message from the __init__() method, but never the one from the > __call__() method. My controller is shown below. > > def edititem(): > ---- <snip> ------ > fields = [Field("edited", 'string', default=itemtext, > requires=IS_NOT_EMPTY_HTML(), > widget=ckeditor_basic, > ) > ] > form = SQLFORM.factory(*fields) > if form.accepts(request.vars, session): > session.flash = 'Edit accepted.' > ----- etc ---- > > This one's really got me stumped. That usually means I've done > something brain dead and just can't see it. > > I've spent over an hour carefully stepping into the calls with winpdb > and inspecting the variables along the way. > > I've verified that > - field.requires ends up containing an <IS_NOT_EMPTY_HTML object > > - the object is valid. I'm able to eval it in winpdb command line > with empty and non-empty strings. > > I got kind of lost stepping through form.accepts and FORM.accepts in > sqlhtml.py but so far haven't spotted the place where it decides not > to call the requires method. What am I doing wrong? FWIW I'm > running web2py 1.92. > > Thanks, > Mike
