[JBoss Seam] - h:SelectManyListbox, s:SelectItems and Many-to-Many mapping
by ovistanciu
Hello.
Not sure if I'm addressing a known bug, but here it goes.
I'm using Seam 2.0.0.GA, JBoss AS 4.2.2, JDK 1.5
I have a Many-to-Many mapping:
Location entity:
| private Collection<UserGroup> userGroups;
|
| @ManyToMany(TargetEntity=ro.ebsoft.doorcontrol.applogic.entity.UserGroup.class,
| cascade={CascadeType.MERGE, CascadeType.PERSIST})
| @JoinTable(name="UserGroup_Location",
| joinColumns={@JoinColumn(name="locationId")}, inverseJoinColumns={@JoinColumn(name="userGroupId")})
| public Collection<UserGroup> getUserGroups() {
| return userGroups;
| }
|
| public void setUserGroups(Collection<UserGroup> userGroups) {
| this.userGroups = userGroups;
| }
|
and UserGroup entity
| private Collection<Location> locations = null;
|
| @ManyToMany(
| cascade={CascadeType.PERSIST, CascadeType.MERGE},
| mappedBy="userGroups",
| targetEntity=Location.class
| )
| public Collection<Location> getLocations() {
| return locations;
| }
|
| public void setLocations(Collection<Location> locations) {
| this.locations = locations;
| }
|
|
When adding a new UserGroup, a user can select any number of locations for the group.
userGroup.xhtml :
| <h:selectManyListbox id="locationsListBox" value="#{userGroupHome.instance.locations}"
| disabled="#{not s:hasRole('admin')}">
| <s:convertEntity/>
| <s:selectItems value="#{locationList.resultList}" var="location" label="#{location.locationName}"/>
| </h:selectManyListbox>
|
When I try to save a new group (for instance, with the 2 top locations from the listbox), there's a failed validation. Faces Message: Conversion Error setting value '0 1' for '#{userGroupHome.instance.locations}'.
I understand there's a problem binding a Set to a h:selectManyListBox (should use ArrayList). When trying to change Collection<Location> locations; to ArrayList<Location> locations; Hibernate notifies that it does not support it (mapping many to many to something else than a Collection).
What to do? Does anyone have a fix for this problem?
Thank you for your time.
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4126217#4126217
Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4126217
18 years, 2 months
[JBoss Seam] - Re: @DataModel vs. EL
by mykey
Naa. That didn't solve it (T_T) Still the same - wrong - status message. Furtheremore, the @In is needed, because the new state has to be entered to the database.
This is the JSF that is shown after inscription.startEdit():
|
| <!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"
| template="layout/template.xhtml">
|
| <ui:define name="body">
|
| <h:messages />
| <h:form>
| <s:validateAll>
| <fieldset>
| <legend><h:outputText value="Persoenliche Daten"/></legend>
| <h:panelGrid columns="2">
| <h:outputText value="Vorname:"/><h:inputText value="#{inscribben.givenName}" required="true"/>
| <h:outputText value="Nachname:"/><h:inputText value="#{inscribben.familyName}" required="true"/>
| <h:outputText value="Geburtsdatum:"/><rich:calendar value="#{inscribben.dateOfBirth}" datePattern="MM-dd-yyyy"/>
| <h:outputText value="Freiwillige Angaben" style="font-weight: bold" /><h:outputText value="" />
| <h:outputText value="Name des Kindergartens:"/><h:inputText value="#{inscribben.kindergarten}" />
| </h:panelGrid>
| </fieldset>
| <fieldset>
| <legend><h:outputText value="Daten des Repraesentanten" /></legend>
| <h:panelGrid columns="2">
| <h:outputText value="Vorname:" /><h:inputText value="#{inscribben.representative.givenName}" required="true"/>
| <h:outputText value="Nachname:" /><h:inputText value="#{inscribben.representative.familyName}" required="true"/>
| <h:outputText value="Hauptstrasse:" /><h:inputText value="#{inscribben.representative.homeAdr.mainStreet}" required="true"/>
| <h:outputText value="Querstrasse:" /><h:inputText value="#{inscribben.representative.homeAdr.transvStreet}" required="true"/>
| <h:outputText value="Hausnummer:" /><h:inputText value="#{inscribben.representative.homeAdr.houseNo}" required="true"/>
| <h:outputText value="Stadt:" /><h:inputText value="#{inscribben.representative.homeAdr.city}" required="true"/>
| <h:outputText value="Freiwillige Angaben" style="font-weight: bold" /><h:outputText value="" />
| <h:outputText value="Telefonnummer:" /><h:inputText value="#{inscribben.representative.telephone}" />
| <h:outputText value="Mobiltelefonnummer:" /><h:inputText value="#{inscribben.representative.cellphone}" />
| </h:panelGrid>
| </fieldset>
| <fieldset>
| <legend><h:outputText value="Ueberwachen der Einschreibung" /></legend>
| <h:panelGrid columns="2">
| <h:outputText value="Benehmen" /><h:selectBooleanCheckbox value="#{inscribben.behavior}" required="true"/>
| <h:outputText value="Auslastung" /><h:selectBooleanCheckbox value="#{inscribben.utilization}" required="true"/>
| <h:outputText value="Sprache" /><h:selectBooleanCheckbox value="#{inscribben.language}" required="true"/>
| <h:outputText value="Materialien" /><h:selectBooleanCheckbox value="#{inscribben.materials}" required="true"/>
| </h:panelGrid>
| </fieldset>
| <fieldset>
| <legend><h:outputText value="Evaluation" /></legend>
| <h:panelGrid columns="6">
| <h:outputText value="Prozent" style="font-weight: bold" />
| <h:outputText value="Perzentil" style="font-weight: bold" />
| <h:outputText value="Rang" style="font-weight: bold" />
| <h:outputText value="Durchschnitt" style="font-weight: bold" />
| <h:outputText value="Aequivalenz" style="font-weight: bold" />
| <h:outputText value="Ergebnis" style="font-weight: bold" />
|
| <h:inputText value="#{inscribben.percentage}" />
| <h:inputText value="#{inscribben.percentil}" />
| <h:inputText value="#{inscribben.rank}" />
| <h:inputText value="#{inscribben.mean}" />
|
| <h:selectOneListbox value="#{inscribben.equivalence}" size="1">
| <f:selectItem itemLabel="" itemValue="" />
| <f:selectItem itemLabel="buena" itemValue="buena" />
| <f:selectItem itemLabel="regular" itemValue="regular" />
| </h:selectOneListbox>
| <h:outputText value="-" rendered="#{inscribben.percentage eq null or inscribben.percentil eq null or inscribben.rank eq null or inscribben.mean eq null or inscribben.equivalence eq null}" />
| </h:panelGrid>
| </fieldset>
| </s:validateAll>
| <h:commandButton action="#{inscription.finishEdit}" value="OK" />
| <s:button action="home" value="back" />
|
| </ui:define>
| </ui:composition>
|
|
It just displays input-boxes for all properties of the EntityBean. But, to me, it doesn't look like the problem lies in the JSF.
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4126214#4126214
Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4126214
18 years, 2 months