Whoops, typo int he HTML file. should read <div id="wrapper"> not <div
jwcid="wrapper">
Nonetheless, I have decided to use the @Persist as my solution.
@Persist("session") was undesirable, but @Persist("flash") will do the trick
for now. Although I still don't understand why I need it. :-(
--
Peter Beshai - Using Tapestry 4.11
Pure Mathematics Student
University of Waterloo
From: "Peter Beshai" <[EMAIL PROTECTED]>
Reply-To: "Tapestry users" <users@tapestry.apache.org>
To: users@tapestry.apache.org
Subject: Autocompleter behaviour with "multi-staged" page
Date: Tue, 07 Nov 2006 13:08:16 -0500
I am running into some strange behaviour with the Autocompleter component.
Say I have a page with two stages -- i.e., I submit a form on the first
page and it reloads the same page but shows a different part -- and I have
an autocompleter on the second stage, it will not work unless I persist the
'stage' flag.
I currently have the stage flag stored in a hidden field on the forms in
both the first and second stages. While this has worked fine for every
other part of my form, the autocompleter doesn't seem to like it.
This may seem vague, so hopefully the source shown below will clear things
up. Does anyone have any ideas on how I can fix this _without_ having to
persist the stage flag? Thanks!
------------------------------------
TestAutocompleter.html:
------------------------------------
<html jwcid="shell">
<body jwcid="@Body">
<div jwcid="wrapper">
<div jwcid="@If" condition="ognl:stage==1">
<form jwcid="@Form">
<input type="hidden" jwcid="@Hidden" value="ognl:stage" />
<select jwcid="categoriesAutocompleter"></select>
<input type="submit" jwcid="stage1Submit" class="submitButton" />
</form>
</div>
<div jwcid="@If" condition="ognl:stage==2">
<form jwcid="@Form">
<input type="hidden" jwcid="@Hidden" value="ognl:stage" />
<select jwcid="categoriesAutocompleter2"></select>
<input type="submit" jwcid="stage2Submit" class="submitButton" />
</form>
</div>
</div>
</body>
</html>
--------------------------------------
TestAutocompleter.java::
--------------------------------------
package com.novelis.fileupload.page;
import java.util.HashMap;
import java.util.Map;
import org.apache.hivemind.util.Defense;
import org.apache.tapestry.annotations.Component;
import org.apache.tapestry.annotations.InitialValue;
import org.apache.tapestry.dojo.form.Autocompleter;
import org.apache.tapestry.dojo.form.IAutocompleteModel;
import org.apache.tapestry.form.Submit;
import org.apache.tapestry.html.BasePage;
import org.apache.tapestry.html.Shell;
public abstract class TestAutocompleter extends BasePage {
@Component(bindings = {
"title='Autocompleter Test'",
"doctype='html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\"
\"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\";'",
})
public abstract Shell getShell();
@Component(bindings = {"action=listener:nextStage","value='Next
Stage'"})
public abstract Submit getStage1Submit();
@Component(bindings = {"action=listener:resetStage","value='Reset'"})
public abstract Submit getStage2Submit();
@Component(bindings = {"model=categoriesModel", "value=newCategory"})
public abstract Autocompleter getCategoriesAutocompleter2();
@Component(bindings = {"model=categoriesModel", "value=newCategory"})
public abstract Autocompleter getCategoriesAutocompleter();
/** Values */
public abstract String getNewCategory();
// Uncommenting the line below will make it work.
// @Persist
@InitialValue("1")
public abstract int getStage();
public abstract void setStage(int stage);
/** Listeners */
public void nextStage() {
System.out.println("next stage: " + (getStage()+1));
setStage(getStage()+1);
}
public void resetStage() {
System.out.println("resetting");
setStage(1);
}
public IAutocompleteModel getCategoriesModel() {
Map<String, String> testMap = new HashMap<String, String>();
testMap.put("category1", "The First Category");
testMap.put("category2", "The Second Category");
testMap.put("category3", "The Third Category");
testMap.put("category4", "The Fourth Category");
return new CategoryAutocompleteModel(testMap);
}
// Basic AutocompleteModel that works with a String, String map.
// The first String is the key(and value) and the second is the label.
private class CategoryAutocompleteModel implements IAutocompleteModel {
private Map<String, String> _values;
public CategoryAutocompleteModel(Map<String, String> values)
{
Defense.notNull(values, "Value list can't be null.");
_values = values;
}
public Map filterValues(String match)
{
Map<Object, String> ret = new HashMap<Object, String>();
if (match == null)
return ret;
String filter = match.trim().toLowerCase();
for (Map.Entry<String, String> entry: _values.entrySet()) {
String label = getLabelFor(entry.getKey());
int length = filter.length();
if(label.length() >= length &&
label.toLowerCase().substring(0,length).equals(filter))
ret.put(getPrimaryKey(entry.getKey()), label);
}
return ret;
}
public String getLabelFor(Object value) {
return _values.get(value);
}
// value and primary key are the same thing
public Object getPrimaryKey(Object value) {
return value;
}
// value and primary key are the same thing
public Object getValue(Object primaryKey) {
return primaryKey;
}
}
}
--
Peter Beshai - Using Tapestry 4.1.1
Pure Mathematics Student
University of Waterloo
--
Peter Beshai - Using Tapestry 4.1.1
Pure Mathematics Student
University of Waterloo
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