Not sure of mako syntax, but any input that failed validation will
have a .note attribute set to the error message. Otherwise it will be
none.
In web.py templates, it would look something like this:
<tr>
<th>Input label</th>
<td>$f.email.render()
$if f.email.note:
<span class="error">$f.email.note</span>
</td>
</tr>
I'm guessing that transfers fairly easily over to mako syntax.
-Justin
On Jan 30, 12:25 am, David Shieh <[email protected]> wrote:
> Hi all,
>
> I used mako for template engine in my app, and I faced a problem of
> form error rendering. I used individual field rendering, and it can't
> show any form error message. Here's my handler codes:
>
> def POST(self, slug):
> f = commentForm()
> d['entry'], d['p'] = self.getEntry(slug)
> if f.validates():
> db.insert('comments',
> createdTime=datetime.now().strftime("%Y-%m-%d %H:
> %M"),
> entryId=d['entry'].entryId, **f.d)
> db.update('entries',
> where="id=%s" % d['entry'].entryId,
> commentNum=int(d['entry'].commentNum)+1)
> raise web.seeother('/entry/%s/' % slug)
> else:
> d['f'] = f
> d['usedTime'] = time.time() - d['startTime']
> return render.entry(**d)
>
> and here's the template codes:
>
> <form action="/entry/${ entry.entry_slug }/"
> method="POST">
> <table>
> <tr>
> <th>昵称(*)</th>
> <td>${ f.username.render() }</td>
> </tr>
> <tr>
> <th>Email地址(*)</th>
> <td>${ f.email.render() }</td>
> </tr>
> <tr>
> <th>个人网站</th>
> <td>${ f.url.render() }</td>
> </tr>
> <tr>
> <th>留言内容(*)</th>
> <td>${ f.comment.render() }</td>
> </tr>
> <tr>
> <th> </th>
> <td><input type="submit" value="发表留言"
> style="width:auto;" /></td>
> </tr>
> </table>
> </form>
>
> when I submited an empty form or made some field error, it can't show
> any error message. so wired. When I changed f.xxx.render() to f.render
> () in template, it can show error message, I don't know why.
> Any ideas?
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