Charles,
Thanks for the suggestion.
I've just checked up code that looks something like yours:
def ajaxButton(text: NodeSeq, func: () => JsCmd, attrs: (String,
String)*): Elem =
attrs.foldLeft(<button
onclick={makeAjaxCall(Str(mapFunc(func)+"=true")).toJsCmd+"; return false;"}
>{text}</button>)(_ % _)
All the various form element creation methods take an attrs vararg.
Also, note the use of foldLeft
Thanks,
David
On Tue, Nov 18, 2008 at 1:25 AM, Charles F. Munat <[EMAIL PROTECTED]> wrote:
>
> So I copied SHtml over for fun and renamed it FH (form helper). Then I
> tried messing with textarea first, just for fun. This can probably be
> done much better, but this works just fine:
>
> private def getAttrs(attrs: Tuple2[String, String]*) : MetaData = {
> attrs.toList match {
> case x :: xs =>
> new UnprefixedAttribute(x._1, x._2, getAttrs(xs: _*))
> case _ => Null
> }
> }
>
> def textarea(value: String, func: String => Any,
> attrs: Tuple2[String, String]*): Elem =
> textarea_*(value, SFuncHolder(func), attrs: _*)
>
> def textarea_*(value: String, func: AFuncHolder,
> attrs: Tuple2[String, String]*): Elem = {
> (<textarea name={mapFunc(func)}
> rows="8" cols="40">{value}</textarea>) %
> getAttrs(attrs: _*)
> }
>
> Now I can call it like this:
>
> FH.textarea(contact.message, contact.message = _, ("id", "myId"),
> ("class", "myClass"), ("rows", "12"))
>
> And I get this:
>
> <textarea id="myId" class="myClass" rows="12" cols="40"></textarea>
>
> (I added default rows and cols attributes because they are required for
> valid XHTML.)
>
> For what it's worth, this works much better for me.
>
> Chas.
>
> Charles F. Munat wrote:
> > Ha. Great minds stink alike. I just discovered this little setback
> > (after adding "id" attributes to about fifty checkboxes -- note to self:
> > check one before doing them all).
> >
> > I've been messing with the map but it's messing with me. I can grab the
> > right node pretty easily, but then I can't seem to add the MetaData.
> >
> > If you're looking to add an id, you can use checkbox_id:
> >
> > SHtml.checkbox_id(user.isStupid, user.isStupid = _, Full("isStupid"))
> >
> > which adds id="isStupid" to the checkbox input.
> >
> > Chas.
> >
> >
> >
> > Derek Chen-Becker wrote:
> >> For a really neat trick, how would I set the ID for a checkbox? The
> >> SHtml checkbox method returns a NodeSeq. I suppose I could just do a
> >> "map", but I was wondering if there was a simpler way.
> >>
> >> Thanks,
> >>
> >> Derek
> >>
> >> On Mon, Nov 17, 2008 at 4:54 PM, David Pollak
> >> <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
> >> wrote:
> >>
> >>
> >>
> >> On Mon, Nov 17, 2008 at 3:41 PM, Charles F. Munat <[EMAIL PROTECTED]
> >> <mailto:[EMAIL PROTECTED]>> wrote:
> >>
> >>
> >> Added:
> >>
> >>
> http://liftweb.net/index.php/FAQ#How_do_I_add_attributes_to_form_fields_created_with_SHtml_methods.3F
> >>
> >>
> >> Awesome! Thanks!
> >>
> >>
> >>
> >> Chas.
> >>
> >> Jorge Ortiz wrote:
> >> > Oops, it might be:
> >> >
> >> > SHtml.text(user.name <http://user.name> <http://user.name>,
> >> user.name <http://user.name> <http://user.name> = _) %
> >> > ("size" -> "24") %
> >> > ("maxlength" -> "48") %
> >> > ("id" -> "user_name") %
> >> > ("title" -> "Enter your name")
> >> >
> >> > One or both of those should work.
> >> >
> >> > --j
> >> >
> >> > On Mon, Nov 17, 2008 at 12:27 PM, Jorge Ortiz
> >> <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
> >> > <mailto:[EMAIL PROTECTED]
> >> <mailto:[EMAIL PROTECTED]>>> wrote:
> >> >
> >> > Try:
> >> >
> >> > SHtml.text(user.name <http://user.name>
> >> <http://user.name>, user.name <http://user.name>
> >> > <http://user.name> = _) %
> >> > ("size", "24") %
> >> > ("maxlength", "48") %
> >> > ("id", "user_name") %
> >> > ("title", "Enter your name")
> >> >
> >> > That should work.
> >> >
> >> > --j
> >> >
> >> > On Mon, Nov 17, 2008 at 12:21 PM, Charles F. Munat
> >> <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
> >> > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>>
> >> wrote:
> >> >
> >> >
> >> > I spend a lot of time writing % new
> >> UnprefixedAttribute(...) to add
> >> > attributes to SHtml form elements (input, textarea,
> >> select, etc.).
> >> >
> >> > It would be nice if the relevant SHtml methods would
> >> permit optional
> >> > extra parameters in the form of tuples where contents
> >> are name-value
> >> > pairs that get translated to attributes. I don't
> >> think this
> >> > would be a
> >> > breaking change.
> >> >
> >> > In other words, instead of:
> >> >
> >> > SHtml.text(user.name <http://user.name>
> >> <http://user.name>, user.name <http://user.name>
> >> > <http://user.name> = _) %
> >> > new UnprefixedAttribute("size", "24",
> >> > new UnprefixedAttribute("maxlength", "48",
> >> > new UnprefixedAttribute("id", "user_name",
> >> > new UnprefixedAttribute("title", "Enter your
> >> name", Null)
> >> > )
> >> > )
> >> > )
> >> >
> >> > I could do:
> >> >
> >> > SHtml.text(user.name <http://user.name>
> >> <http://user.name>, user.name <http://user.name>
> >> > <http://user.name> = _,
> >> > ("size", "24"),
> >> > ("maxlength", "48"),
> >> > ("id", "user_name"),
> >> > ("title", "Enter your name")
> >> > )
> >> >
> >> > Which is a hell of a lot cleaner and faster, and I
> >> don't have to
> >> > import
> >> > UnprefixedAttribute and remember the % and the new
> >> keywords.
> >> >
> >> > Or is this already possible and I'm missing it?
> >> >
> >> > I have an online survey with 43 questions on 5 pages
> >> involving
> >> > more than
> >> > 150 database fields. The snippet is already over 700
> >> lines and
> >> > growing.
> >> > It's just unmanageable.
> >> >
> >> > Another thing: the <label> element is a very
> >> important part of
> >> > accessibility to persons with disabilities, but it
> >> needs a "for"
> >> > attribute that references the "id" attribute of the
> input
> >> > element (or
> >> > textarea, etc.). The current SHtml output (unlike
> >> Rails) does not
> >> > generate an id attribute, so they have to be added by
> >> hand. Has
> >> > anyone
> >> > given any thought to automatically-generated id
> >> elements on form
> >> > fields?
> >> > Better yet, some way to integrate labels?
> >> >
> >> > Ideally, I would do something like this:
> >> >
> >> > <survey:name label="Your name"/>
> >> >
> >> > Or this:
> >> >
> >> > <survey:name>Your name</survey:name>
> >> >
> >> > and bind would allow me to generate this:
> >> >
> >> > <label for="id123">Your name
> >> > <input type="text" id="id123" value=""
> >> > name="F1226951216428645000_I0G"/>
> >> > </label>
> >> >
> >> > What do others think? Is this already possible?
> >> >
> >> > Chas.
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > >
> >>
> >>
> >>
> >>
> >>
> >> --
> >> Lift, the simply functional web framework http://liftweb.net
> >> Collaborative Task Management http://much4.us
> >> Follow me: http://twitter.com/dpp
> >> Git some: http://github.com/dpp
> >>
> >>
> >>
> >>
> >>
> >
> > >
>
> >
>
--
Lift, the simply functional web framework http://liftweb.net
Collaborative Task Management http://much4.us
Follow me: http://twitter.com/dpp
Git some: http://github.com/dpp
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