Le mercredi 15 avril 2009 à 20:02 +0300, Serkan Camurcuoglu a écrit :
> sorry for my previous post.. what i've previously done is:
>
> - add a filtertoolbar to your datatable
> - make some of your columns IFilteredColumn, for example I've used
> TextFilteredPropertyColumn but there are also others
> - make your dataprovider implement IFilterStateLocator
> - implement the filtering logic by checking the current state of the
> filter in your iterator method
> - no need to change html
>
> I'm not sure if that's the best way to do it, but it may help you get
> started..
Thx for your help!
I'am currently trying to figure how to use TextFilteredPropertyColumn
and what model he needs.
my dataProvider is a list of, say, Incident with firstName, lastName,
and age
My non filtered columns are :
final IColumn[] columns = new IColumn[3];
int col = 0;
columns[col++] = new PropertyColumn(new Model("firstName"),
"firstName", "firstName");
columns[col++] = new PropertyColumn(new Model("lastName"), "lastName",
"lastName");
columns[col++] = new PropertyColumn(new Model("age"), "age", "age");
Now I want to filter of lastname so I replace the PropertyColumn by a :
columns[col++] = new TextFilteredPropertyColumn(new
ResourceModel("lastName"), "lastName" "lastName");
?? but I got an error ...
......
Ok I think I have understood :
the getFilterModel method of TextFilteredPropertyColumn return a
PropertyModel bases on the form model. The form model is
FilterStateModel based on the IFilterStateLocator. So the
TextFilteredPropertyColumn set a property of the object used as the
"getFilterState" of the IFilterStateLocator.
So I just need to create a POJO and use it as the structure to store the
filter state. I can use a People (I filter on the same column) but I
prefer to use another class (I have some multicolumns filter..)
So :
1/ create a POJO FilterState with a string property name
"filterdFirstName" (I use voluntary another attr name id order to be
clear)
2/ set the initial filter State on the provider :
provider.setFilterState(new IncidentFilter());
3/ transform column in instances of IFilteredColumn, like
TextFilteredPropertyColumn but be careful, the property is target and
instanca of the FilterState ! that is what I was missing!
new TextFilteredPropertyColumn(new Model("object."filterdFirstName""),
"author", "author");
"object" is the property name of the filtestate in the FilterStateModel
(which is an instance of IncidentFilter
""filterdFirstName" is the property of I want to set in the
IncidentFilter
4/ implements IFilterStateLocator in the DataProvider
public Object getFilterState() {
return filter;
}
public void setFilterState(final Object state) {
filter = (IncidentFilter) state;
}
5/and use the filter in the iterator of the DataProvider
for (final Incident incident : list) {
if ((filter.getAuthor() != null)
&& !
incident.getAuthor().toLowerCase().contains(filter.getAuthor().toLowerCase())) {
continue;
}
filteredList.add(incident);
}
-(this is some bad code (prefer filter in the DAO, use internal var to
limit .toLowerCase calls...) : just to learn wicket filter? after I
delete all and restart)
6/ And voilà it works!
Awesome!! Just have to get the trick.
>
>
>
> Serkan Camurcuoglu wrote:
> > you can try FilterToolbar
> >
> >
> > Julien Graglia wrote:
> >> Hi,
> >>
> >> I try to filter rows of a datatable : I already have sort the rows very
> >> easily (using a SortableDataProvider) but now I need to filter some
> >> columns.. which seems to me a rather "classic" task.
> >>
> >> I have found classes in
> >> org.apache.wicket.extensions.markup.html.repeater.data.table.filter like
> >> ChoiceFilter and IFilterStateLocator but I did not find any examples. It
> >> seems to me that is what I need but I dont figure out how to use it
> >>
> >> I only found a post with a very short code like : final
> >> DefaultDataTable table = new DefaultDataTable("datatable",
> >> columns, provider, 30);
> >> final FilterForm form = new FilterForm("filter-form", provider);
> >> table.addTopToolbar(new FilterToolbar(table, form, provider));
> >> form.add(table);
> >> form.add(new GoAndClearFilter("filter-buttons", form));
> >> add(form);
> >>
> >> but I dont know what html comes with that and how to implements the
> >> filter.
> >>
> >> I have google that the "phonebook" application is using filter but I
> >> can't get it.
> >> I have to say that I dont know how to start with only the javadoc (how
> >> to write html? simple example?)
> >>
> >> I you have a piece of code of how to use filter and
> >> IFilterStateLocator...
> >>
> >> thx,
> >>
> >>
> >
> >
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> >
>
>
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--
Julien Graglia
NetCeler
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