No, 15 getters would most likely be ridiculous. What I still don't know
is will this page be displaying all 15 at once (in different tables), or
will it display only 1 based on a choice made by the user?
If one, the separate your logic for extracting the selected one from the
list, possibly in an action handler or onActivate (if the selection is
made by a PageLink and context).
If you are going to display more than one on the same page, then provide
that collection as a single List by a getter. Your template can then use
Loop (and conditional If components if needed) to display them.
Any clearer?
You are welcome for the help :-). T5 is great but still young and a bit
weak in documentation, so the community has to make up for that. I've
received much help from this list.
chris
Hibowl wrote:
Ok, in fact I want all the objects from the list, but not in the same table,
that's why I dont think a Loop is usuable, because I won't display them one
after the other.
But even if I provide a getter for my object, I don't think I can tell my
page which object for the List to render (because it changes).
Now, I have instanciated all the 15 Objects of the list, and I provide 15
getters... But I don't think it's very optimal !!
Thanks a lot for your help Chris !!
Chris Lewis-5 wrote:
Ok, but _how_ do you want to get this object? It seems like you only
want one of them from the List, so you won't need to Loop. If that's
right then you need only to provide a getter for your object (this
assumes your page knows which specific object is desired).
Hibowl wrote:
I'm maybe not very clear, I will try to describe better.
I have an ArrayList from Fichier, and I'd like to display their IDs.
Start.java :
private ArrayList<Fichier> _listeFichiers;
private Fichier _fichier;
//+getters/setters
Fichier.java :
private fichierId;
...
//+getters/setters
Start.html : I have several tables with Fichier descriptions, and there
is a
cell where I want to display the Id of the Fichier :
<table id="tbFichiers" summary="Fichiers">
<tr>
<th id="th1" class="colonnefichiers"> # Numéro Ordre </th>
<th id="th2">
# Description
</th>
<th id="th3" class="colonneavancement">Avancement</th>
<th id="th4" class="colonnenotifications">Etat </th>
</tr>
<tr>
<td class="tdlft" headers="th1"><t:pagelink page="fichiers/detail"
context=${fichier.id} onmouseover="return overlib('Afficher détails
fichier
50.');" onmouseout="return nd();"><strong>Fichier
50</strong></t:pagelink>
javascript:void(0); ? </td>
<td class="tdlft" headers="th2">alerte</td>
<td headers="th3"><strong>Fichier Id : ${fichier.id}</strong></td>
<td headers="th4"><strong>Etat </strong></td>
</tr>
.......
</table>
My problem is how to display the Id of the fichier, I would like to
specify
the index in the array, so that it could render the good id.
Am I clear enough ?
thanks :)
Chris Lewis-5 wrote:
I'm sorry I'm afraid I don't understand your situation. If you could
explain what exactly you are trying to do, maybe I can help.
chris
Hibowl wrote:
Hi,
thanks for your answer. I tried with the loop, but I need to display
only
one value. I think I could use the index parameter for Loop, but I
don't
see
how to link it with my List.
http://www.nabble.com/T5%3A-How-to-acces-to-an-array-from-loop--tf3599642.html#a10054876
Here is an example, but how can I use it with my example ?
Thank you for your help !
Chris Lewis-5 wrote:
This is a pretty basic operation that you can learn by doing the T5
tutorial.
It sounds like you want to enumerate a list and display something for
each iteration - a String property from each Fichier instance. To do
this you need the T5 Loop
<http://tapestry.apache.org/tapestry5/tapestry-core/component-parameters.html#orgapachetapestrycorelibcomponentsloop>
component. Your page provides the List (any Iterable), but must also
provide a property for holding a member of the List for each iteration
(the value parameter of the Loop). So in your page you need:
//The Iterable.
private ArrayList<Fichier> listeFichiers;
//The "current" element.
private Fichier fichier;
//now you need at least a getter for your list, and both a getter and
a
setter for fichier.
In your template you can now:
<t:loop source="listeFichiers" value="fichier">
${fichier.field}
</t:loop>
Note that ${fichier.field} will result in a call to the method
Fichier#getField.
Hibowl wrote:
Hi,
I'd like to access the values of a List from my html page, but I
don't
know
how to do that...
Start.java :
private ArrayList<Fichier> listeFichiers;
(getter/setter).
Start.html :
I want to display a field from Fichier (type String). But how can I
access
to it ? Is there a way to use such a ${listeFichiers...} with a
parameter
?
Thank you for any help !
