Primefaces datatable用于显示不可更新的数据库视图结果?

很好的一天

是否有可能(我似乎被困在无法单击“勾选”接受行编辑)使用Primefaces数据表来显示不可更新Postgres视图的结果,但在onRowEdit事件中有自定义代码,可以将更改正确保存到DB中?

或者必须将Primefaces/JSF数据表链接到可更新的实体映射,以便使用它来“更新”和显示信息?

我已经在了。xhtml文件:

 <p:dataTable id="conf_data_table" var="confRoomBookingDisplay" style="width: auto" rowIndexVar="rowid" editingRow="true"
                             value="#{conferenceRoomBookingView.conferenceRoomBookingList}" editable="true"
                             editMode="row" widgetVar="cellBookings">
                    <f:facet name="header">
                        Venue Booking
                    </f:facet>

                    <p:ajax event="rowEdit" listener="#{conferenceRoomBookingView.onRowEdit}"
                            update=":create_new_booking:growl"/>
                    <p:ajax event="rowEditCancel" listener="#{conferenceRoomBookingView.onRowCancel}"
                            update=":create_new_booking:growl"/>

                    <p:column headerText="Booking Ref" style="width: 10%; text-align: center">
                        <p:outputLabel value="#{ConferenceRoomBooking.conferenceRoomBookingAid}"
                                       style="text-align: center"/>
                    </p:column>

                    <p:column headerText="Time Slot" style="width: 10%; text-align: center">
                        <p:outputLabel value="#{ConferenceRoomBooking.timeSlot}" style="text-align: center"/>
                    </p:column>

                    <p:column headerText="Booked For" style="width: 15%; alignment: center">
                        <p:outputLabel value="#{ConferenceRoomBooking.empShortNameSurname}"
                                       style="text-align: left"/>
                    </p:column>


                    <p:column headerText="Booking Comment" style="width: 60%; alignment: center">
                        <p:cellEditor>
                            <f:facet name="output">
                                <h:outputText value="#{ConferenceRoomBooking.conferenceRoomBookingComment}"/>
                            </f:facet>
                            <f:facet name="input">
                                <p:inputText value="#{ConferenceRoomBooking.conferenceRoomBookingComment}"
                                             style="width:98%"/>
                            </f:facet>
                        </p:cellEditor>
                    </p:column>

                    <p:column style="width: 5%">
                        <p:rowEditor />
                    </p:column>

                </p:dataTable>

然后在我的@RequestScoped(javax.enterprise.context.RequestScoped)上,命名为backing bean(我也使用了@ViewScoped-org.omnifaces.cdi注释)。

事件代码如下所示:

public void onRowEdit(RowEditEvent event) {
    conferenceRoomBookingAid = (((ConferenceRoomBookingEntity) event.getObject()).getConferenceRoomBookingAid());
    String msgEdit = Long.toString(conferenceRoomBookingAid);
    FacesMessage msg = new FacesMessage("Booking Edited for Reference ID:", msgEdit);
    FacesContext.getCurrentInstance().addMessage(null, msg);
    confRoomService.persistComment(How do I get my updated value from the event???);
}

public void onRowCancel(RowEditEvent event) {
    conferenceRoomBookingAid = (((ConferenceRoomBookingEntity) event.getObject()).getConferenceRoomBookingAid());
    String msgEdit = Long.toString(conferenceRoomBookingAid);
    FacesMessage msg = new FacesMessage("Booking Cancelled for Reference ID: ", msgEdit);
    FacesContext.getCurrentInstance().addMessage(null, msg);
}

当前正在注释出 confRoomService.persistComment(How do I get my updated value from the event???); 代码,使我进入一个正确呈现的表,在那里我可以编辑该行。但问题是,我无法用鼠标单击“接受”/“是”勾选,按enter键只会再次清除单元格。

我使用不可更新视图的原因是,当前DB结构使用外键将数据链接到个人,并且使用基本实体将显示外键id而不是其值。