[Seaside] Re: Q on "html select" and how to get selected item in an
squeakman at gmail.com
Thu Oct 13 15:44:39 UTC 2011
Thanks Bob and John,
I have done as you suggested and it does work.
Here is what the my code now looks like:
list: self listOfStocks;
" Ajax Callback 1 "
onChange: (html scriptaculous request
triggerForm: (html scriptaculous element up: 'form'));
"Ajax Callback 2"
onChange: (html scriptaculous evaluator callback: [:s | s refresh]);
"non Ajax Callback "
callback: [:selStock | self selectedStock: selStock]
If I understand things correctly, on change causes "Ajax Callback 1" to
be called which causes "non Ajax Callback" to be called where the
selected stock is updated.
This works but I also want to re-render the page without having to use a
Submit button. I thought that the "non Ajax Callback" would have caused
the entire page to be re-rendered but that does not happen.
The "Ajax Callback 2" forces the re-rendering of the page.
One last question to wrap this up: "Is this the prescribed way to do
Thank you very much,
On 13/10/2011 10:40 AM, John McKeon wrote:
> I would add that to get the callback to occur via AJAX add:
> onChange: (html jQuery ajax serializeThisWithHidden)
> And in an attempt to make it clearer:
> The parameter in the list: message is a collection of *objects* and the
> callback :value will be the selected object. If you give it a collection
> of string representations of your Stock objects, you will get back the
> selected string representation. But if you give it a collection of
> Stocks in this case, you will get back the selected Stock object.
> Seaside handles the bookwork for you in determining which object in the
> collection was selected. You don't need to deal with the selected index
> if you don't want to.
> On Thu, Oct 13, 2011 at 10:16 AM, Bob Arning <arning at charm.net
> <mailto:arning at charm.net>> wrote:
> We had a very similar question on 28-29 Sept (see "Using the select
> tag"). The end result was something like:
> (html select)
> list: self genders;
> selected: self contact gender;
> enabled: [:ea | ea notNil];
> labels: [:ea | ea ifNil: ['---'] ifNotNil: [ea printableVersion]];
> callback: [:value | self contact gender: value].
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