Tapestry

Question

我在单选组元素上有一个循环。我想知道每个无线电组有哪个选定值。有没有办法动态生成值属性？

当只有一个广播组时，它工作正常。

我的 .tml 文件：

<t:loop source="mapWaiverHeaderWithDetails.keySet()"
                    value="waiverHeader" t:id="mapWaiverHeader">            
                            <div id="waivers_${waiverHeader.code}"
                                class="panel-collapse collapse in">
                                <div id="primary" class="panel-body editable">
                                    <t:radiogroup value="selectedWaiverDetail" encoder="waiverDetailEncoder">
                                        <ul>
                                            <t:loop source="waiverDetails" value="waiverDetail">
                                            ... 
                                            </t:loop>
                                        </ul>
                                    </t:radiogroup>
                                </div>
                            </div>
                </t:loop>

我的 .java 文件：

@Property
private WaiverDetail selectedWaiverDetail;

谢谢

Answer 1

您可以使用 tapestry-stitch 中的 map: 绑定前缀（演示 here）

那么你可以声明：

@Property
private Map<String, WaiverDetail> waiverDetailMap;

void onPrepareForSubmit() {
    waiverDetailMap = new LinkedHashMap<String, WaiverDetail>();
}

和

<t:radiogroup value="map:waiverDetailMap[waiverHeader.code]" encoder="waiverDetailEncoder">

Answer 2

为了完整起见，没有 map: 绑定前缀和自定义 getter / setter.

也是可以实现的

TML

<t:loop source="waiverHeaders" value="waiverHeader">            
    <t:radiogroup value="selectedWaiverDetail" encoder="waiverDetailEncoder">

Java

@Property 
private WaiverHeader waiverHeader;

@Property
private Map<String, WaiverDetail> waiverDetailMap;

@OnPrepareForRender
void onPrepareForRender() {
    waiverDetailMap = lookupMapFromDatabase();
}

@OnPrepareForSubmit
void onPrepareForSubmit() {
    waiverDetailMap = new LinkedHashMap();
}

public WaiverDetail getSelectedWaiverDetail() {
    return waiverDetailMap.get(waiverHeader.getCode());
}

public void setSelectedWaiverDetail(WaiverDetail detail) {
    waiverDetailMap.put(waiverHeader.getCode(), detail);
}

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