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如何在grails中顯示timeZoneSelect Tag的選定選項

[英]How to display Selected option Of timeZoneSelect Tag in grails

使用時區創建Customer時,timeZone具有值。 當我顯示timeZone時,我想顯示所選的選項。

例如,我想顯示SST,薩摩亞標准時間-11:0.0(選定選項),而不是Pacific / Midway(Value)

我必須在顯示頁面上對此功能進行哪些更改?

客戶類別{

    static constraints = {
    }
    String name
    String timeZone
}

在create.gsp中:

<div class="fieldcontain ${hasErrors(bean: customerInstance, field: 'timeZone', 'error')} ">
    <label for="timeZone">
        <g:message code="customer.timeZone.label" default="timeZone" />

    </label>
    <g:if test="${customerInstance?.timeZone}">
         <g:timeZoneSelect name="timeZone" value="${TimeZone.getTimeZone(customerInstance?.timeZone)}" />
    </g:if>
    <g:else>
         <g:timeZoneSelect name="timeZone" value="${customerInstance?.timeZone}"  />
    </g:else>
</div>

在show.gsp中:

<span class="property-value" aria-labelledby="timeZone-label"><g:fieldValue bean="${customerInstance}" field="timeZone"/></span>

我找到了解決方案

 def show(Long id) {
        def customerInstance = Customer.get(id)
        if (!customerInstance) {
            flash.message = message(code: 'default.not.found.message', args: [message(code: 'customer.label', default: 'Customer'), id])
            redirect(action: "list")
            return
        }

        def date = new Date()
        TimeZone tz = TimeZone.getTimeZone(customerInstance.timeZone);
        def shortName = tz.getDisplayName(tz.inDaylightTime(date), TimeZone.SHORT);
        def longName = tz.getDisplayName(tz.inDaylightTime(date), TimeZone.LONG);
        def offset = tz.rawOffset;
        def hour = offset / (60 * 60 * 1000);
        def min = Math.abs(offset / (60 * 1000)) % 60;
        def timeZone= shortName+", "+longName+" "+hour+": "+min
        [customerInstance: customerInstance,timeZone:timeZone]
    }

在Show.gsp中:

<span class="property-value" aria-labelledby="timeZone-label">${timeZone}</span>

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