1 Reply Latest reply on May 9, 2011 11:27 AM by sukharevd

    Passing parameters between pages

    sukharevd
    sukharevd May 9, 2011 9:55 AM

      Hello,

      it must be very newbie question, but I'm completely stuck passing parameters from one page to another. There is a bean with request scope and in navigation rules I'm using redirect. As far as I understood it's bad not to use this <redirect />, but still I don't want to change scope of my beans. How can I pass them in this case?

       

      Now I have following:

      <?xml version="1.0" encoding="UTF-8"?>
<faces-config version="2.0" ... >
    <navigation-rule>
        <from-view-id>/categories.xhtml</from-view-id>
        <navigation-case>
            <from-outcome>Add Category</from-outcome>
            <to-view-id>/category_edit.xhtml</to-view-id>
            <redirect />
        </navigation-case>

        <navigation-case>
            <from-outcome>Edit Category</from-outcome>
            <to-view-id>/category_edit.xhtml</to-view-id>
            <redirect />
        </navigation-case>
    </navigation-rule>

    ...

     <application>
        <el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
        <locale-config>
            <default-locale>en</default-locale>
        </locale-config>
        <resource-bundle>
            <base-name>messages</base-name>
            <var>messages</var>
        </resource-bundle>
    </application>
</faces-config>

       

      categories.xhtml:

      <html ...>
    <ui:composition template="WEB-INF/pages/template.xhtml">
        <ui:define name="body">
            <f:view>
                <h:form id="categoryForm">
                    <rich:extendedDataTable rowKeyVar="rkv" frozenColCount="1"
                        id="table" rows="40"
                        columnClasses="col" value="#{categoryController.all}"
                        var="item" sortMode="single">

                        <f:facet name="header">
                            <b>Category List</b>
                        </f:facet>

                        <rich:column sortExpression="#{item.title}">
                            <f:facet name="header">
                                <b>Category</b>
                            </f:facet>
                            <h:outputText value="#{item.title}" />
                        </rich:column>

                        ...

                        <rich:column sortExpression="#{item.parent}">
                            <f:facet name="header">
                                <b>Parent</b>
                            </f:facet>
                            <h:outputText  value="#{item.parent}" />
                        </rich:column>

                        <rich:column sortExpression="#{item.id}">
                            <f:facet name="header">
                                <b>Actions</b>
                            </f:facet>

                            <a4j:commandLink value="Edit" action="Edit Category">
                                <f:setPropertyActionListener value="#{item}" target="#{categoryController.category}" />
                            </a4j:commandLink>
                            <h:outputText value=" " />

                            <a4j:commandLink value="Delete" action="#{categoryController.delete}" render="categoryForm">
                                <f:setPropertyActionListener value="#{item}" target="#{categoryController.category}" />
                            </a4j:commandLink>

                        </rich:column>
                    </rich:extendedDataTable>
                    <a4j:commandButton value="Add Category" action="Add Category"/>
                    </h:form>
            </f:view>

        </ui:define>
    </ui:composition>

</html>

       

      So when I press "Edit" appears ./category_edit.xhtml but with empty fields I don't know how to deal with this.

        • 1. Re: Passing parameters between pages
          sukharevd
          sukharevd May 9, 2011 11:27 AM (in response to sukharevd)

          I solved my problem usign HTML GET method.

          <?xml version="1.0" encoding="UTF-8"?>
<faces-config version="2.0" ...">

<!-- CATEGORY -->
    <navigation-rule>
        <from-view-id>/categories.xhtml</from-view-id>
        ...
        <navigation-case>
            <from-outcome>Edit Category</from-outcome>
                <to-view-id>/category_edit.xhtml</to-view-id>
                <redirect include-view-params="true">
                    <view-param>
                    <name>id</name>
                    <value>#{categoryController.category.id}</value>
                    </view-param>
                </redirect>
        </navigation-case>
    </navigation-rule>
    ...
</faces-config>

           

          category_edit.xhtml:

          <html ...>
<f:metadata>
    <f:viewParam name="id" value="#{categoryController.category.id}"/>
</f:metadata>

<ui:composition template="WEB-INF/pages/template.xhtml">
    <ui:define name="body">
        <h:form>
...
</html>

           

          Also I had to rewrite some getters to obtain the whole object from database by it's id, but it was easy.

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