[Zope] Multiple Selection with "Checkboxes":

[richard.bendit@gmx.net]

Here is a my complete example with integers and strings, just drop it to a
DTML
method an test it.
Best regards 
   Arno

<dtml-var standard_html_header>
<dtml-call "REQUEST.set('selectedITEMS',['a','b','c'])">
<dtml-in selectedITEMS>
<dtml-var "_['sequence-item']">
</dtml-in>

<dtml-call "REQUEST.set('List_available_items',['a','b','c'])">
<dtml-in selectedITEMS>
<dtml-var "_['sequence-item']">
</dtml-in>

<p>

<dtml-call "REQUEST.set('List_selected_items',['a','b'])">

<dtml-in List_available_items>
<input type=checkbox name=ap_selection:list value="<dtml-var
"_['sequence-item']">"
         <dtml-if expr="_['sequence-item'] in List_selected_items">
                         checked (<dtml-var "_['sequence-item']">)
                 </dtml-if>
 >
<dtml-var sequence-item><br>
</dtml-in>

<hr>

<dtml-call "REQUEST.set('selectedITEMS',[1,2,3])">
<dtml-in selectedITEMS>
<dtml-var "_['sequence-item']">
</dtml-in>

<dtml-call "REQUEST.set('List_available_items',[1,2,3])">
<dtml-in selectedITEMS>
<dtml-var "_['sequence-item']">
</dtml-in>

<p>

<dtml-call "REQUEST.set('List_selected_items',[1,2])">

<dtml-in List_available_items>
<input type=checkbox name=ap_selection:list value="<dtml-var
"_['sequence-item']">"
         <dtml-if expr="_['sequence-item'] in List_selected_items">
                         checked (<dtml-var "_['sequence-item']">)
                 </dtml-if>
 >
<dtml-var sequence-item><br>
</dtml-in>

<dtml-var standard_html_footer>




>On Wed, 25 Jul 2001, you
wrote: > Do you think it is because the value are stored in that type:
> [value1,value2,...] values are integers ?
> 
> 
> Regards
> 
> 
> Richard
> 
> -----Ursprüngliche Nachricht-----
> Von: Arno Gross [mailto:zope@consotec.de]
> Gesendet: Mittwoch, 25. Juli 2001 13:59
> An: rbendit@netbooster.de; Richard Bendit; dieter@handshake.de;
> toneman@phil.uu.nl; zope-dev@zope.org; zope@zope.org
> Betreff: Re: [Zope] Multiple Selection with "Checkboxes":
> 
> 
> You can try:
> 
> <dtml-in List_available_items>
> <input type=checkbox name=ap_selection:list value="<dtml-var
> "_['sequence-item']">"
>          <dtml-if expr="_['sequence-item'] in List_selected_items">
>                          checked (<dtml-var "_['sequence-item']">)
>                  </dtml-if>
>  >
> <dtml-var sequence-item><br>
> </dtml-in>
> 
> You have a list and you must ask for membership (with 'in'), also you can
> save
> one <dtml-in>.
> 
> Best regards
>    Arno
> 
> >On Wed, 25 Jul 2001, Richard Bendit wrote:
> > What i use is:
> >
> > 1. UpdateForm (DTML-Method)
> > 2. List_available_items (ZSQL-Method)
> >    "select ap_id,ap_docname from AliasPages where proj_id=<dtml-sqlvar
> > proj_id type=int>"
> > 3. List_selected_items (ZSQL-Method)
> >    "select ap_selection from Projects where proj_id=<dtml-sqlvar proj_id
> > type=int>"
> >
> > Problem: I want that the Checkboxes are "CHECKED" if "available_items"
==
> > "selected_items"
> >
> > I am not sure if my dtml is wrong or the sql-method: ! See the TIP at
the
> > end of this mail !
> >
> > ****************************
> > Here the: "UpdateForm"
> > ****************************
> >
> > <dtml-call "REQUEST.set('selectedITEMS',[])">
> > <dtml-in List_SelectedALIASPAGES>
> >   <dtml-call "selectedITEMS.append(proj_id)">
> > </dtml-in>
> >
> > <dtml-in List_available_items>
> >       <input type=checkbox name=ap_selection:list value="<dtml-var
> > sequence-item>"
> > 		<dtml-call expr="REQUEST.set(selectedAP,_['sequence-item'])">
> > 		<dtml-in List_selected_items>
> > 			<dtml-if expr="_['sequence-item'] == selectedITEMS">
> > 				checked
> > 			</dtml-if>>
> > 		</dtml-in>
> >       <dtml-var sequence-item><br>
> > </dtml-in>
> >    </TD>
> > </TR><dtml-comment>colname:ap_selection,table:Projects</dtml-comment>
> >
> > ****************************
> >
> > Here a tip i found:
> >
> > "How to construct such a query?
> > If you know, that your values do not contain quotes (i.e. '),
> > then you can use "_.string.join" like this:
> >
> >      select ... where
> >      col in ( <dtml-var "_.string.join(multiple_selection,',')"> )"
> >
> >
> >
> > I recognized that a lot of USERS have these problems with "Multiple
> > Selections". So if you will help to find a good way to manage this i
will
> > post a "How-To" in Zope and i wanted to create an ADD-ON for the great
> > product "ZNolk".
> >
> >
> >
> > THANX you all for your time.
> >
> >
> >
> > REGARDS
> >
> >
> >
> > Richard
> >
> >
> > _______________________________________________
> > Zope maillist  -  Zope@zope.org
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