commandlink passing parameters

[aalves]

Hi,
I am trying to pass parameters from one page to another, first I used

<s:link>

but that did not send the form, then I used h:commandbutton but that did not send the pararmeters, and then I used h:commandLink, and it does not pass the parameters either,
I should get the uri with the parameters

myurl?param=param

, but that is not happening. what can I do?

This is my code:

 <div class="tableControl">

        <h:commandLink action="#{asignarPrecio.continuar}"
            rendered="#{asignarPrecio.previousExists}"
               value="#{messages.left}#{messages.left} First Page"
                  id="firstPage">
          <f:param name="firstResult" value="0"/>
        </h:commandLink>

        <h:commandLink action="#{asignarPrecio.continuar}"
            rendered="#{asignarPrecio.previousExists}"
               value="#{messages.left} Previous Page"
                  id="previousPage">
            <f:param name="firstResult"
                    value="#{asignarPrecio.previousFirstResult}"/>
        </h:commandLink>

        <h:commandLink action="#{asignarPrecio.continuar}"
            rendered="#{asignarPrecio.nextExists}"
               value="Next Page #{messages.right}"
                  id="nextPage">
            <f:param name="firstResult"
                    value="#{asignarPrecio.nextFirstResult}"/>
        </h:commandLink>

        <h:commandLink action="#{asignarPrecio.continuar}" rendered="#{asignarPrecio.nextExists}"
               value="Last Page #{messages.right}#{messages.right}"
                  id="lastPage">
            <f:param name="firstResult"
                    value="#{asignarPrecio.lastFirstResult}"/>
        </h:commandLink>

    </div>

when I get to the action I do not get the params needed to do the pagination.
What I am trying to do its to paginate a list of items into which I have to insert information.
Regards

[bobc75]

Since f:params are request parameters, you could add the requestParameter annotation to your backing bean for each param you want to pass:

@RequestParameter
int firstResult;

If you wanted to keep the firstResult value around across several requests, you'd have to then assign the value to a field in the (stateful or conversational) bean. Of course, if that is the case, you can just use hidden fields in your form.

[aalves]

Hi,
Thanks for the reply, the thing is that in the url the parameters do not appear, and the backing bean does not recover the values.
Whith s:link it worked, but with h:commandLink it doesnt.

[aalves]

Hi,
I think that I found the problem , the thing is that the parameters that I pass always have the same value, which is two.
Here is my code:

Backing object:

package es.jda.epsa.reserva.session;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Set;


import org.hibernate.annotations.Parameter;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.security.Restrict;
import org.jboss.seam.annotations.web.RequestParameter;
import org.jboss.seam.contexts.Contexts;
import org.jboss.seam.log.Log;
import org.jboss.seam.international.StatusMessages;

import es.jda.epsa.reserva.bean.DiasRecurso;
import es.jda.epsa.reserva.bean.HorariosRecurso;
import es.jda.epsa.reserva.bean.RecursoPrecio;
import es.jda.epsa.reserva.entity.Actividad;
import es.jda.epsa.reserva.entity.Dia;
import es.jda.epsa.reserva.entity.Horario;
import es.jda.epsa.reserva.entity.Periodo;
import es.jda.epsa.reserva.entity.Recurso;
import es.jda.epsa.reserva.entity.Tipodia;
import es.jda.epsa.reserva.utils.DateUtils;

@Name("asignarPrecio")
@Scope(ScopeType.PAGE)
public class AsignarPrecio
{
    @Logger private Log log;

    @In StatusMessages statusMessages;
    
    private List<Tipodia> tipoDias;
    
    private List<DiasRecurso> dias;
    
    private List<DiasRecurso> diasAux;
    
    private boolean rendered;
    
    private boolean previousExists;

    private boolean nextExists;
    
    private int previousFirstResult;

    private int nextFirstResult;

    private int lastFirstResult;
    
    private int eltosPag = 2;
    
    @RequestParameter
    private Integer firstResult;
      
    
    public AsignarPrecio() 
    {
         rendered = false;
         if(firstResult==null)
              firstResult=0;              
         Integer id = 19;//(Integer)Contexts.getSessionContext().get("idPeriodo");
         PeriodoService periodoService = new PeriodoService();
         TipodiaList tipodiaList = new TipodiaList();
         tipoDias = tipodiaList.getResultList();
         Periodo periodo = periodoService.find(id);
         Actividad actividad = periodo.getActividad();
         diasAux = new ArrayList<DiasRecurso>();
         Set<Dia> diasSet = periodo.getDias();
         //List<Dia> diasSet = periodoService.getDias(id);
         List<Recurso> recursos = new ArrayList<Recurso>(actividad.getRecursos());
         for(Dia dia : diasSet)
         {
              List<Horario> horarios = new ArrayList<Horario>(dia.getHorarios());
              System.out.println(parseDay(dia.getDia()));
              for(Horario h : horarios)
              {     
                   System.out.println(h.getInicio() + " " + h.getFin());
              }
         }
         for(Dia dia : diasSet)
         {
              List<Horario> horarios = new ArrayList<Horario>(dia.getHorarios());
              List<HorariosRecurso> horariosRecurso = new ArrayList<HorariosRecurso>();
              for(Horario horario : horarios)
              {
                   List<RecursoPrecio> recursosPrecio = new ArrayList<RecursoPrecio>();
                   for(Recurso rec : recursos)
                   {
                        recursosPrecio.add(new RecursoPrecio(rec));
                   }
                    HorariosRecurso hRecurso = new HorariosRecurso(horario, recursosPrecio);
                    horariosRecurso.add(hRecurso);

              }
              DiasRecurso diasRecurso = new DiasRecurso(parseDay(dia.getDia()).toUpperCase(),horariosRecurso);
              diasAux.add(diasRecurso);
         }
         dias=diasAux;
         for(DiasRecurso dia : diasAux)
         {
              System.out.println(dia.getDia());
              List<HorariosRecurso> hRec = dia.getHorariosRecurso();
              for(HorariosRecurso hr : hRec)
              {
                   System.out.println(hr.getHorario().getInicio() + " " + hr.getHorario().getFin());
                   List<RecursoPrecio> recPre = hr.getRecursos();
                   for(RecursoPrecio r : recPre)
                   {
                        System.out.println(r.getRecurso().getNombre());
                   }
              }
         }
     }
       
    public void continuar()
    {
          if(firstResult==null)
          {
               firstResult=0;
          }
          for(DiasRecurso dia : dias)
          {
               List<HorariosRecurso> horariosRecursosAux = dia.getHorariosRecurso();
               Iterator<DiasRecurso> itDias = diasAux.iterator();
               boolean enc=false;
               while (itDias.hasNext() && !enc)
               {
                    DiasRecurso d = itDias.next();
                    if(d.getDia()==dia.getDia())
                    {
                         enc=true;
                         d.setHorariosRecurso(horariosRecursosAux);
                    }
               }
          }
         dias = new ArrayList<DiasRecurso>(diasAux.subList(firstResult, firstResult+eltosPag));
         rendered = true;
    }

    @Restrict("#{s:hasRole('admin')}")
    public String asignarPrecio()
    {
         for(DiasRecurso dia : dias)
         {
              
         }
         return "";
    }

    public void siguiente()
    {
          if(firstResult==null)
          {
               firstResult=0;
          }
         dias=diasAux.subList(firstResult, firstResult+eltosPag);
    }
    // add additional action methods
   
    public void setDias(List<DiasRecurso> dias)
    {
         this.dias=dias;
    }
    
    public List<DiasRecurso> getDias()
    {
         return this.dias;
    }

     public List<Tipodia> getTipoDias() {
          return tipoDias;
     }

     public void setTipoDias(List<Tipodia> tipoDias) {
          this.tipoDias = tipoDias;
     }
    
     public String parseDay(Date day)
     {
          DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
          String dateStr=dateFormat.format(day);
          dateStr = DateUtils.getDay(day) + " " + dateStr;
          return dateStr;
     }
     
    public void setRendered(boolean rendered)
    {
         this.rendered=rendered;
    }
    
    public boolean getRendered()
    {
         return rendered;
    }

     public boolean getPreviousExists() {
          if(firstResult==null)
          {
               firstResult=0;
          }
          if(firstResult>0)
               return true;
          return false;
     }

     public void setPreviousExists(boolean previousExists) {
          this.previousExists = previousExists;
     }

     public boolean isNextExists() {
          if(firstResult==null)
          {
               firstResult=0;
          }
          if((firstResult+eltosPag)<diasAux.size())
               return true;
          return false;
     }

     public void setNextExists(boolean nextExists) {
          this.nextExists = nextExists;
     }

     public int getPreviousFirstResult() {
          if(firstResult==null)
          {
               firstResult=0;
          }
          return firstResult-eltosPag;
     }

     public void setPreviousFirstResult(int previousFirstResult) {
          this.previousFirstResult = previousFirstResult;
     }

     public int getNextFirstResult() {
          if(firstResult==null)
          {
               firstResult=0;
          }
          return firstResult+eltosPag;
     }

     public void setNextFirstResult(int nextFirstResult) {
          this.nextFirstResult = nextFirstResult;
     }

     public int getLastFirstResult() {
          return diasAux.size()-eltosPag;
     }

     public void setLastFirstResult(int lastFirstResult) {
          this.lastFirstResult = lastFirstResult;
     }

     public List<DiasRecurso> getDiasAux() {
          return diasAux;
     }

     public void setDiasAux(List<DiasRecurso> diasAux) {
          this.diasAux = diasAux;
     }

     public int getEltosPag() {
          return eltosPag;
     }

     public void setEltosPag(int eltosPag) {
          this.eltosPag = eltosPag;
     }

     public int getFirstResult() {
          return firstResult;
     }

     public void setFirstResult(int firstResult) {
          this.firstResult = firstResult;
     }
     
}

The xthml page:

<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
    xmlns:s="http://jboss.com/products/seam/taglib"
    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:rich="http://richfaces.org/rich"
    xmlns:a="http://richfaces.org/a4j"
    xmlns:c="http://java.sun.com/jstl/core"
    template="layout/template.xhtml">

<ui:define name="body">

      <h:form id="asignarPrecioForm1" rendered="#{!asignarPrecio.rendered}">

        <rich:panel>
            <f:facet name="header">asignarPrecio</f:facet>

           <ui:repeat id="dias"  value="#{asignarPrecio.dias}" var="diasRecurso">
                     <div class="prop">
                          <s:label styleClass="name"><i>#{diasRecurso.dia}</i></s:label>
                     </div>
                     <s:decorate template="layout/edit.xhtml" >
                         <ui:define name="label">Tipo Dia</ui:define>
                         <h:selectOneMenu value="#{diasRecurso.tipodia}"  required="true" >
                                   <s:selectItems value="#{asignarPrecio.tipoDias}" var="tipo" label="#{tipo.tipo}"/>
                                   <s:convertEntity/>
                       </h:selectOneMenu>                         
                     </s:decorate>
                     <s:decorate id="grupo" template="layout/edit.xhtml">
                          <ui:define name="label">Todas las horas tienen el mismo precio</ui:define>
                           <h:selectBooleanCheckbox value="#{diasRecurso.mismoPrecio}" />
                  </s:decorate>  
                </ui:repeat>

            <div style="clear:both"/>

        </rich:panel>

        <div class="actionButtons">
            <h:commandButton id="continuar" value="Continuar" action="#{asignarPrecio.continuar()}" />
        </div>

    </h:form>
    
    <h:form id="asignarPrecioForm2" rendered="#{asignarPrecio.rendered}">

        <rich:panel>
            <f:facet name="header">asignarPrecio</f:facet>

           <ui:repeat id="dias"  value="#{asignarPrecio.dias}" var="diasRecurso">
                          <div class="prop">
                               <s:label styleClass="name"><i>#{diasRecurso.dia} #{diasRecurso.mismoPrecio}</i></s:label>
                          </div>
                          <s:div rendered="#{diasRecurso.mismoPrecio}">
                                    <ui:repeat value="#{horariosRecursos.get(0).recursos}" var="recurso">
                                              <div class="prop">     
                                                   <s:label styleClass="name">#{recurso.recurso.nombre}</s:label><br/>
                                              </div>
                                              <s:decorate template="layout/edit.xhtml" >
                                                    <ui:define name="label">Precio</ui:define>
                                                    <h:inputText id="precio" required="true" value="#{recurso.precio}"/><bt/>
                                              </s:decorate>
                                   </ui:repeat>
                          </s:div>
                          <s:div rendered="#{!diasRecurso.mismoPrecio}">
                                     <ui:repeat value="#{diasRecurso.horariosRecurso}" var="horariosRecurso">
                                           <div class="prop">
                                                <s:label styleClass="name">De #{horariosRecurso.horario.inicio} a #{horariosRecurso.horario.fin}</s:label><br/>
                                           </div>
                                           <ui:repeat value="#{horariosRecurso.recursos}" var="recurso">
                                                   <div class="prop">     
                                                        <s:label styleClass="name">#{recurso.recurso.nombre}</s:label><br/>
                                                   </div>
                                                   <s:decorate template="layout/edit.xhtml" >
                                                         <ui:define name="label">Precio</ui:define>
                                                         <h:inputText id="precio" required="true" value="#{recurso.precio}"/><bt/>
                                                   </s:decorate>
                                           </ui:repeat>
                                    </ui:repeat>
                         </s:div>
                </ui:repeat>

            <div style="clear:both"/>

        </rich:panel>
        
        
    <div class="tableControl">

        <h:commandLink action="#{asignarPrecio.continuar}"
            rendered="#{asignarPrecio.previousExists}"
               value="#{messages.left}#{messages.left} First Page"
                  id="firstPage">
          <f:param name="firstResult" value="0"/>
        </h:commandLink>

        <h:commandLink action="#{asignarPrecio.continuar}"
            rendered="#{asignarPrecio.previousExists}"
               value="#{messages.left} Previous Page"
                  id="previousPage">
            <f:param name="firstResult"
                    value="#{asignarPrecio.previousFirstResult}"/>
        </h:commandLink>

        <h:commandLink action="#{asignarPrecio.continuar}"
            rendered="#{asignarPrecio.nextExists}"
               value="Next Page #{messages.right}"
                  id="nextPage">
            <f:param name="firstResult"
                    value="#{asignarPrecio.nextFirstResult}"/>
        </h:commandLink>

        <h:commandLink action="#{asignarPrecio.continuar}" rendered="#{asignarPrecio.nextExists}"
               value="Last Page #{messages.right}#{messages.right}"
                  id="lastPage">
            <f:param name="firstResult"
                    value="#{asignarPrecio.lastFirstResult}"/>
        </h:commandLink>

    </div>

        <div class="actionButtons">
            <h:commandButton id="asignarPrecio" value="asignarPrecio" action="#{asignarPrecio.asignarPrecio}" />
        </div>

    </h:form>

</ui:define>

</ui:composition>