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From "Stephen Friedrich (JIRA)" <...@myfaces.apache.org>
Subject [jira] Created: (TRINIDAD-750) PPR does not R: Table rows are not refreshed
Date Mon, 01 Oct 2007 21:22:50 GMT
PPR does not R: Table rows are not refreshed
--------------------------------------------

                 Key: TRINIDAD-750
                 URL: https://issues.apache.org/jira/browse/TRINIDAD-750
             Project: MyFaces Trinidad
          Issue Type: Bug
            Reporter: Stephen Friedrich
            Priority: Critical


I try to implement a table with inline editing.
In a checkbox above the table I initially select a value (a department in my real app) which
populates the table via autosubmit.

However I have not managed to get it working. PPR does not recognize that it must update the
individual table rows.
It only adds/removes rows if the row count changed, but is always showing the very same value,
even if they changed on the server.

I coded an example to show the problem:

Simple bean:
{code}package com.corejsf;

public class Datum {
    private String name;
    private int count;

    public Datum(String name, int count) {
        this.name = name;
        this.count = count;
    }

    public String getName() { return name; }
    public void setName(String name) { this.name = name; }

    public int getCount() { return count; }
    public void setCount(int count) { this.count = count; }
}{code}

Bean that provides the table date (you may just replace the seam component definition with
a JSF managed bean:
{code}package com.corejsf;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;

import java.util.Random;

@Name("tableData")
@Scope(ScopeType.SESSION)
public class TableData {
    private Random random = new Random();
    private Datum[] data;
    private String selectedValue = "2";

    public TableData() {
        refresh();
    }

    public Datum[] getData() { return data; }

    public void setSelectedValue(String selectedValue) {
        this.selectedValue = selectedValue;
        refresh();
    }

    public String getSelectedValue() { return selectedValue; }

    public void refresh() {
        int i = random.nextInt(4);
        int length = i == 3 ? 4 : 3;

        data = new Datum[length];
        for (int i1 = 0; i1 < data.length; i1++) {
            data[i1] = new Datum(Character.toString((char) ('A' + random.nextInt(26))), random.nextInt(100)
+ 1);
        }
    }
}
{code}

This is my page (using facelets). When you change the selection in the dropwdown the table
data is randomly changed and sometimes the row count is changed from 3 to 4 or back. PPR is
working somehow: The table will add/delete the additional row. But it will never show current
values:

{code:html}<?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="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:tr="http://myfaces.apache.org/trinidad"
      xmlns:trh="http://myfaces.apache.org/trinidad/html">

    <trh:head/>

    <trh:body>
        <tr:messages globalOnly="true"/>

        <tr:form>
            <tr:subform id="selectForm">
                <tr:selectOneChoice id="selectId" value="#{tableData.selectedValue}" autoSubmit="true">
                    <f:selectItem itemLabel="Eins" itemValue="1"/>
                    <f:selectItem itemLabel="Zwei" itemValue="2"/>
                </tr:selectOneChoice>
            </tr:subform>


            <tr:subform>
                <tr:table value="#{tableData.data}" var="datum" partialTriggers=":selectForm:selectId">
                    <tr:column headerText="Name">
                        <tr:inputText value="#{datum.name}"/>
                    </tr:column>

                    <tr:column headerText="Count">
                        <h:inputText value="#{datum.count}"/>
                    </tr:column>

                </tr:table>
            </tr:subform>
        </tr:form>
    </trh:body>
</html>{code}

This is the same page using only pure JSF without PPR, no autosubmit. It is working fine:
{code:html}<?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="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:tr="http://myfaces.apache.org/trinidad"
      xmlns:trh="http://myfaces.apache.org/trinidad/html">

    <trh:head title="m/score/engine"/>

    <trh:body>
        <tr:messages globalOnly="true"/>

        <h:form>
            <h:selectOneMenu value="#{tableData.selectedValue}">
                <f:selectItem itemLabel="Eins" itemValue="1"/>
                <f:selectItem itemLabel="Zwei" itemValue="2"/>
            </h:selectOneMenu>
            <tr:commandButton text="Refresh Table"/>
        </h:form>


        <h:form>
            <h:dataTable value="#{tableData.data}" var="datum">
                <h:column>
                    <f:facet name="header">
                        <h:outputText value="Name"/>
                    </f:facet>
                    <h:inputText value="#{datum.name}"/>
                </h:column>

                <h:column>
                    <f:facet name="header">
                        <h:outputText value="Count"/>
                    </f:facet>
                    <h:inputText value="#{datum.count}"/>
                </h:column>

            </h:dataTable>
        </h:form>
    </trh:body>
</html>
{code}

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