Question

我在primefaces 3.3和jsf 2.0工作。我在删除lazy datamodel中的记录时遇到问题。由于排序和过滤在datatable中不能正常工作，我不得不使用lazydatamodel概念。现在保存（通过向导），编辑，排序和过滤工作正常。当我试图从datatable中删除记录时，对话框出现了，当我点击yes（命令按钮）删除记录时，而不是调用bean方法控件去加载惰性数据模型的方法。 clientUitility.java（managedbean）的deleterecord没有调用。任何人都可以通过传递客户端对象给我指导从数据表中删除记录这是代码段

clientMaster.xhtml

 <h:form id="cm">
                <p:growl life="5000" showDetail="true" showSummary="true" id="mymessage" />
                <p:wizard widgetVar="wiz" flowListener="#{clientUitility.onFlowProcess}" showNavBar="true" >
                    <p:tab id="personal" title="Personal" >
.....
.....// tab and columns
.....

                                        <p:commandButton id="addClient" immediate="true" value="Add Client" actionListener="#{clientUitility.save}" oncomplete="wiz.loadStep (wiz.cfg.steps [0], true)" update=":fce:clientList" > <!-- update="@parent,:cm:clientList" -->
                                        </p:commandButton>
                                    </p:column>
                                </p:row>
                            </p:panelGrid>
                        </p:panel>
                    </p:tab>
                </p:wizard>
            </h:form>
            <ui:include id="ce" src="ClientEditDatatable.xhtml"/>

ClientEditdatatable.xhtml

<h:form id="fce">


        <p:dataTable var="client" value="#{clientUitility.lazyModel}" id="clientList" editable="true" widgetVar="clientTable" rowKey="#{client.clientID}"
                     paginatorTemplate="{RowsPerPageDropdown} {FirstPageLink} {PreviousPageLink} {CurrentPageReport} {NextPageLink} {LastPageLink}"
                     paginator="true" rows="10" rowsPerPageTemplate="5,10,15" lazy="true">

            <p:column headerText="First Name" style="width:100px" filterBy="#{client.firstName}" sortBy="#{client.firstName}" >
                <p:cellEditor>
                    <f:facet name="output">
                        <h:outputText value="#{client.firstName}" />
                    </f:facet>
                    <f:facet name="input">
                        <p:inputText id="dtFirstName" value="#{client.firstName}" style="width:100%" label="FirstName" onkeyup="valid(this)" onblur="convertUpper(this.id)"  >
                            <f:validateLength for="dtFirstName" maximum="100" minimum="3"/>
                        </p:inputText>
                    </f:facet>
                </p:cellEditor>
            </p:column>
.....
..... // code of column
.....
            <p:ajax event="rowEdit" listener="#{clientUitility.editRowListner}" update=":cm:mymessage"/>
            <p:column headerText="Delete" style="width:50px">
                <p:commandButton id="deleteClient" value="Delete" onclick="confirmDeleteClient.show()" title="Delete this Client" styleClass="ui-icon-trash">
                    <f:setPropertyActionListener target="#{client}" value="#{clientUitility.client}"/>
                </p:commandButton>
            </p:column>
        </p:dataTable>
        <p:confirmDialog message="Delete client?" severity="alert" widgetVar="confirmDeleteClient" visible="false" appendToBody="true" >
            <p:commandButton value="Yes" update="clientList" immediate="true" oncomplete="confirmDeleteClient.hide()" actionListener="#{clientUitility.deleteRecord}" >
<f:setPropertyActionListener target="#{client}" value="#{client}"
            </p:commandButton>
            <p:commandButton value="No" onclick="confirmDeleteClient.hide()" type="button" />
        </p:confirmDialog>
        <br/>

LazyClientDataModel.java

public class LazyClientDataModel extends LazyDataModel<ClientBean> {
private List<ClientBean> datasource;
public LazyClientDataModel(List<ClientBean> datasource) {
    this.datasource = datasource;
}
@Override
public ClientBean getRowData(String rowKey) {
    for(ClientBean client : datasource) {
        if(Integer.toString(client.getclientID()).equals(rowKey))
            return client;
    }
    return null;
}
@Override
public Object getRowKey(ClientBean client) {
    return Integer.toString(client.getclientID());
}
@Override
public List<ClientBean> load(int first, int pageSize, String sortField, SortOrder sortOrder, Map<String,String> filters) {
    List<ClientBean> data = new ArrayList<ClientBean>();
    //filter
    for(ClientBean client : datasource) {
        boolean match = true;
        for(Iterator<String> it = filters.keySet().iterator(); it.hasNext();) {
            try {
                String filterProperty = it.next();
                String filterValue = filters.get(filterProperty);
                String fieldValue = String.valueOf(client.getClass().getField(filterProperty).get(client));
                if(filterValue == null || fieldValue.toLowerCase().startsWith(filterValue.toLowerCase())) {
                    match = true;
                } else {
                    match = false;
                    break;
                }
            } catch(Exception e) {
                match = false;
            }
        }
        if(match) {
            data.add(client);
        }
    }
    //sort
    if(sortField != null) {
        Collections.sort(data, new LazySorter(sortField, sortOrder));
    }
    //rowCount
    int dataSize = data.size();
    this.setRowCount(dataSize);
    //paginate
    if(dataSize > pageSize) {
        try {
            return data.subList(first, first + pageSize);
        }
        catch(IndexOutOfBoundsException e) {
            return data.subList(first, first + (dataSize % pageSize));
        }
    }else {
        return data;
    }
}
}

clientUitility.java（managedbean）

public class ClientUitility {
private LazyDataModel<ClientBean> lazyModel;
private ClientBean client = new ClientBean();
private List<ClientBean> clientAll;// = new ArrayList<ClientBean>();

/** Creates a new instance of ClientUitility */
public ClientUitility() {
    client = new ClientBean();
    clientAll = new ArrayList<ClientBean>();
    //int userID = Integer.parseInt(FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("USER_ID").toString());
    clientAll = ClientService.GenerateClientList(1);
    lazyModel = new LazyClientDataModel(clientAll);
}
// setter and getter of client 
// getter for lazymodel
public void deleteRecord(ActionEvent actionEvent) {
    try {
        System.out.println("Delete record Called....");
        int ClientID = client.getclientID();            
        ClientService.DeleteClient(client);
        client = new ClientBean();
        clientAll = ClientService.GenerateClientList(1);
        lazyModel = new LazyClientDataModel(clientAll);
        FacesMessage msg = new FacesMessage("Client Deleted", "");
        FacesContext.getCurrentInstance().addMessage(null, msg);
    } catch (Exception e) {
        e.printStackTrace();
    }
public void save(ActionEvent actionEvent) {
    System.out.println("Save record Called....");
    ClientService.AddClient(client);
    client = new ClientBean();
    clientAll = ClientService.GenerateClientList(1);
    lazyModel = new LazyClientDataModel(clientAll);
    FacesMessage msg = new FacesMessage("Client Created", "");
    FacesContext.getCurrentInstance().addMessage(null, msg);
}
}

Answer 1

这是预期的行为，因为您正在使用appendToBody =“true”。您应该在确认对话框中添加一个表单。

<p:confirmDialog message="Delete client?" severity="alert" widgetVar="confirmDeleteClient" visible="false" appendToBody="true" >
  <h:form>
    <p:commandButton value="Yes" update="clientList" immediate="true" oncomplete="confirmDeleteClient.hide()" actionListener="#{clientUitility.deleteRecord}" >
      <f:setPropertyActionListener target="#{client}" value="#{client}"
    </p:commandButton>
   <p:commandButton value="No" onclick="confirmDeleteClient.hide()" type="button" />
  </h:form>
</p:confirmDialog>

Answer 2

删除属性类型=“按钮”

Answer 3

我改变了PF 3.2而不是PF 3.3，它运行顺畅。请检查此链接：http://forum.primefaces.org/viewtopic.php?f=3&t=22216。它在PF3.3中的错误。无需更改项目中的任何内容。

Answer 4

您还可以使用在confirmDialog之外定义的remoteCommand组件，它仍然在表单内部（当您使用appendToBody = true时）。

primefaces：确认对话框按钮不调用managedbean方法

4 个答案: