[Seaside] Using the select tag

Olivier Auverlot olivier.auverlot at gmail.com
Thu Sep 29 19:09:58 UTC 2011


Thank Boris but I don't know if your example can resolve my question. 
The problem is not to produce labels but setting a unique value for each 
line of the select tag and read this value in my seaside application.

It's possible that we have the same problem with the radio and checkbox tags

In web application, it's a very common practice to dissociate the 
information displayed for the user and the data exchanged between the 
client and the server.

http://www.w3schools.com/tags/att_option_value.asp

I used this approach in all my previous web applications with many 
programming languages (C, Rebol, Perl, PHP, ...). Why not with Pharo and 
Seaside ? .

In fact in the callback, I think that the server code must not work with 
the label value but with the value of the tag. It's not the same thing.

Olivier ;-)


> Olivier,
>
> No, you have a way of separately providing display ‘labels’ for your 
> actual objects in the list,
>
> (html select)
>
> list: self countries;
>
> selected: country;
>
> enabled: [:ea | ea notNil];
>
> labels: [:ea | ea ifNil: ['---'] ifNotNil: [ea name]];
>
> callback: [:value | country := value].
>
> -Boris
>
> *From:*seaside-bounces at lists.squeakfoundation.org 
> [mailto:seaside-bounces at lists.squeakfoundation.org] *On Behalf Of 
> *Olivier Auverlot
> *Sent:* Thursday, September 29, 2011 9:16 AM
> *To:* Seaside - general discussion
> *Subject:* Re: [Seaside] Using the select tag
>
> Hi Boris,
>
> This means that I must analyze the choice of the user from the text 
> that is displayed on the screen. ok :-(
>
> But how can I must doing if my application supports many languages ?
>
> Olivier ;-)
>
> The framework will pass an actual 'selected' object from your 'list' into the callback, what it puts in the 'value' in the HTML should be completely irrelevant to you.
>   
> -Boris
>   
>   
> -----Original Message-----
> From:seaside-bounces at lists.squeakfoundation.org  <mailto:seaside-bounces at lists.squeakfoundation.org>  [mailto:seaside-bounces at lists.squeakfoundation.org] On Behalf Of Olivier Auverlot
> Sent: Thursday, September 29, 2011 9:00 AM
> To: Seaside - general discussion
> Subject: Re: [Seaside] Using the select tag
>   
> if I can't set and read the value of an option tag. How can I know the index of the selected line ?
>   
> Olivier ;-)
>
>     2011/9/29 Olivier Auverlot<olivier.auverlot at gmail.com>  <mailto:olivier.auverlot at gmail.com>:
>
>         Hi,
>
>           
>
>         I need to use a drop-down menu in a seaside application. In the
>
>         examples that I have found, the displayed values are initialized with #list:
>
>           
>
>         html  select
>
>                  list:  #(#Male  #Female);
>
>                  selected:  self  contact  gender;
>
>                  callback:  [  :value  |
>
>                          value  =  #Male
>
>                          ifTrue:  [  self  contact  beMale  ]
>
>                          ifFalse:  [  self  contact  beFemale  ]  ].
>
>           
>
>         In the browser, I get this HTML code :
>
>           
>
>         <select  name="3"><option  value="1"selected="selected">Male</option><option
>
>            value="2">Female</option></select>
>
>           
>
>         My problem is how to set the values for each<option>   tag ? I would
>
>         get something like :
>
>     Why do you want to do this?
>
>       
>
>     Cheers
>
>     Philippe
>
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