Apache Wicket › Users forum

Table repeater: repeat across row AND column

Classic

List

Threaded

3 messages Options

akarypid

Table repeater: repeat across row AND column

Hello,

I am trying to create a web page that lists contact addresses in a table.
My repeater can easily lay out one address per row, but I need to be able
to list 2 addresses per row (actually, ideally I'd like to list N
addresses per row). The problem is that ListView's operation
[populateItem()] only provides you with one item to work with. So with
this markup:

<html xmlns:wicket>
<body>
<wicket:panel>
<table wicket:id="addressesTable" style="width: 100%;">
<tr wicket:id="addresses">
<td wicket:id="address" style="width: 50%;"></td>

</tr>
</table>
</wicket:panel>
</body>
</html>

If I uncomment the second cell above, I need to be able to access the
"next" item, something like:

final ListView<Address> rowContainer = new ListView<Address>(
"addresses", model) {
private static final long serialVersionUID = 1L;

@Override
protected void populateItem(ListItem<Address> item) {
Address a = item.getModelObject();
AddressPanel ap = new AddressPanel("address",
new CompoundPropertyModel<Address>(
new AddressLoadableDetachableModel(a.getId())));
item.add(ap);
/*
// DOES SUCH AN API EXIST?
//
if (item.hasNext()) {
item.next();
a = item.getModelObject();
AddressPanel ap2 = new AddressPanel("address2",
new CompoundPropertyModel<Address>(
new AddressLoadableDetachableModel(a.getId())));
item.add(ap2);
}
*/
}
};

My only solution currently is that I convert the list of addresses to a
list of address tuples (pairs), so that I am able to repeat over pairs of
addresses. In short, I am just wondering if there is a better way to do
this rather than (pseudocode):

List<Address> addresses = myRepository.loadAddressList();
List<Tuple<Address,Address>> addressPairs = convertToPairs(addresses);
// Make the above repeater iterate over "List<Tuple<Address,Address>>"
having access
// to two addresses per repetition

Any pointers on this? Thank you in advance.

---------------------------------------------------------------------
To unsubscribe, e-mail: [hidden email]
For additional commands, e-mail: [hidden email]

Martin Grigorov-4

Re: Table repeater: repeat across row AND column

I like your current approach better than what you want to do.
Anyway here is how to do it:

int currIndex = item.getIndex();

ListItem nextItem = get(Integer.toString(currIndex + 1));
if (nextItem != null) {
...
}

On Sun, May 1, 2011 at 6:51 PM, Alexandros Karypidis <[hidden email]> wrote:

> Hello,
>
> I am trying to create a web page that lists contact addresses in a table. My
> repeater can easily lay out one address per row, but I need to be able to
> list 2 addresses per row (actually, ideally I'd like to list N addresses per
> row). The problem is that ListView's operation [populateItem()] only
> provides you with one item to work with. So with this markup:
>
> <html xmlns:wicket>
> <body>
> <wicket:panel>
> <table wicket:id="addressesTable" style="width:
> 100%;">
> <tr wicket:id="addresses">
> <td wicket:id="address" style="width:
> 50%;"></td>
> 
> </tr>
> </table>
> </wicket:panel>
> </body>
> </html>
>
> If I uncomment the second cell above, I need to be able to access the "next"
> item, something like:
>
> final ListView<Address> rowContainer = new ListView<Address>(
> "addresses", model) {
> private static final long serialVersionUID = 1L;
>
> @Override
> protected void populateItem(ListItem<Address> item) {
> Address a = item.getModelObject();
> AddressPanel ap = new AddressPanel("address",
> new CompoundPropertyModel<Address>(
> new
> AddressLoadableDetachableModel(a.getId())));
> item.add(ap);
> /*
> // DOES SUCH AN API EXIST?
> //
> if (item.hasNext()) {
> item.next();
> a = item.getModelObject();
> AddressPanel ap2 = new AddressPanel("address2",
> new CompoundPropertyModel<Address>(
> new
> AddressLoadableDetachableModel(a.getId())));
> item.add(ap2);
> }
> */
> }
> };
>
> My only solution currently is that I convert the list of addresses to a list
> of address tuples (pairs), so that I am able to repeat over pairs of
> addresses. In short, I am just wondering if there is a better way to do this
> rather than (pseudocode):
>
> List<Address> addresses = myRepository.loadAddressList();
> List<Tuple<Address,Address>> addressPairs = convertToPairs(addresses);
> // Make the above repeater iterate over "List<Tuple<Address,Address>>"
> having access
> // to two addresses per repetition
>
> Any pointers on this? Thank you in advance.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [hidden email]
> For additional commands, e-mail: [hidden email]
>
>

--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com

Igor Vaynberg-2

Re: Table repeater: repeat across row AND column

In reply to this post by akarypid

see GridView

-igor

On Sun, May 1, 2011 at 9:51 AM, Alexandros Karypidis <[hidden email]> wrote:

---------------------------------------------------------------------
To unsubscribe, e-mail: [hidden email]
For additional commands, e-mail: [hidden email]