I haven't seen enough code to really understand what you are doing
wrong. Storing your search criteria in the session is a reasonable
approach. Don't store your search results in the session though, that
would be a scalability nightmare...
Here is fully functioning code that accepts search parameters in an
object on one page and transfers the object to another for rendering.
ListPerson.tml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<html xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";
xmlns="http://www.w3.org/1999/xhtml";
xml:lang="en"
lang="en">
<head>
<title>List</title>
</head>
<body>
<h1 t:type="if" test="filterPerson">Search Results:
${filterPerson?.name} ${filterPerson?.age}</h1>
<h1 t:type="unless" test="filterPerson">All People:</h1>
<table>
<tr t:type="loop" source="people" value="person">
<td>${person.name}</td>
<td>${person.age}</td>
</tr>
</table>
<t:if test="filterPerson"><a href="#" t:type="eventLink"
t:event="clearFilter">Clear Filter</a><br/></t:if>
<a href="#" t:type="pageLink" t:page="person/search">Search</a>
</body>
************* ListPerson.java
package usr.joshcan.tapestry.pages.person;
import org.apache.tapestry5.annotations.Persist;
import org.apache.tapestry5.annotations.Property;
import org.apache.tapestry5.ioc.annotations.Inject;
import usr.joshcan.support.Person;
import usr.joshcan.tapestry.services.PersonSource;
import java.util.List;
/**
* User: joshcanfield
* Date: Oct 6, 2009
*/
public class ListPerson {
@Property
private List<Person> _people;
@Property
private Person _person;
@Property
@Persist
private Person _filterPerson;
@Inject
private PersonSource _source;
public void setFilter(Person person) {
_filterPerson = person;
}
void setupRender() {
if (_filterPerson != null) {
_people = _source.find(_filterPerson);
} else {
_people = _source.find();
}
}
void onClearFilter() {
_filterPerson = null;
}
}
************** SearchPerson.tml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<html xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";
xmlns="http://www.w3.org/1999/xhtml";
xml:lang="en"
lang="en">
<head>
<title>Search People</title>
</head>
<body>
<t:form t:id="searchForm">
<t:label for="name">Name</t:label>
<t:textfield t:id="name"/>
<br/>
<t:label for="age">age</t:label>
<t:textfield t:id="age"/>
<br/>
<t:submit value="search"/>
</t:form>
</body>
</html>
**************** SearchPerson.java
package usr.joshcan.tapestry.pages.person;
import org.apache.tapestry5.annotations.InjectPage;
import org.apache.tapestry5.annotations.Property;
import usr.joshcan.support.Person;
/**
* User: joshcanfield
* Date: Oct 6, 2009
*/
public class SearchPerson {
@Property
private String _name;
@Property
private Integer _age;
@InjectPage
private ListPerson _listPerson;
ListPerson onSuccessFromSearchForm() {
_listPerson.setFilter(new Person(_name, _age));
return _listPerson;
}
}
**** for completeness PersonSource.java (bound as a service in AppModule)
package usr.joshcan.tapestry.services;
import usr.joshcan.support.Person;
import java.util.ArrayList;
import java.util.List;
/**
* User: joshcanfield
* Date: Oct 6, 2009
*/
public class PersonSource {
private static final List<Person> _source = new ArrayList<Person>();
{
_source.add(new Person("John", 24));
_source.add(new Person("Jane", 52));
_source.add(new Person("Fred", 27));
_source.add(new Person("Bill", 95));
}
public List<Person> find() {
return _source;
}
public List<Person> find(Person filter) {
List<Person> filtered = new ArrayList<Person>();
for (Person p : _source) {
if (filter.getName() != null) {
if (p.getName().contains(filter.getName())) {
filtered.add(p);
}
}
if (filter.getAge() != null) {
if (p.getAge().equals(filter.getAge())) {
filtered.add(p);
}
}
}
return filtered;
}
}
Josh
On Tue, Oct 6, 2009 at 2:48 AM, 976 <amsc...@gmail.com> wrote:
>
> I'm totally new to Tapestry (2 days playing with it), but I'm stuck with
> quite simple problem;( (At least I guess so).
>
> What I want to to is to create 4 pages for Client entity:
> - list (list all clients or ones from search result)
> - edit
> - add
> - find
>
> Didn't have any problems with first three, but having problems with last
> one.
>
> I've created SearchClient, AddClient, ListClients pages (java+tml).
>
> What I want to do is to input search criteria on SearchClient and list the
> results in ListClients and I don't really now how to pass data between
> pages.
> First of all AddClient and SearchClient have
>
> @IncludePage
> private ListClients listClients;
> and AddClient has:
> public Object onSuccess() {
> clientService.addClient(client);
> return listClients;
> }
>
> which works just fine.
>
> In SearchClient I firstly tried to retrieve data onSuccess and pass the
> collection to onActivate method of ListClients but passing it didn't work;(
> Can't get the idea of what happens there, but what I wanted to do show
> collection passed from SearchClient if it existed and list all if it didnt.
> And always came up with list of all clients.
>
> Later I tried putting in SearchClient:
> Object onSuccess() {
> listClients.setClient(client);
> return listClients;
> }
>
> Still - this client was always null in the following:
> public void onActivate(){
> if(client==null){
> clients = clientService.getClients();
> }else{
> clients = clientService.getClientByCriteria(client);
> }
> }
>
> After doing some search I tried doing @Persist on client property in, but it
> turned out to ALWAYS be set which wasn't also good as couldn't list all
> clients - always one from criteria.
>
> So I tried @Persist("flash") - and the behavior of this one I can't even
> describe;)
>
> I really tried to google the solution for search screen + results screen but
> with no luck.
>
> Is this onActivate() approach good at all or should I use some other way of
> passing data between pages?
> As I said - what I want to accomplish is to list clients from search screen
> and if this criteria was not created at all (list all clients from dirrenent
> link) I want to list them all.
>
>
> Will be very grateful for any help.
> bwt. I made sure to look over all info on tapestry main page;( + other
> googled examples/tutorials
>
> Thanks,
> Adam
>
> --
> View this message in context:
> http://www.nabble.com/passing-values-between-pages-%28search--%3E-result%29-tp25765698p25765698.html
> Sent from the Tapestry - User mailing list archive at Nabble.com.
>
>
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