grails - 如何为违反 Grails 域对象的约束设置自定义错误消息？

Question

首先域定义如下:

package com.abc.def

class EventDonation implements Serializable{

    String title
    String body
    BigDecimal customDonationMin
    BigDecimal customDonationMax


    static constraints = {  
        title blank: false, nullable: false
        body blank: false, nullable: false
        customDonationMin min: BigDecimal.ZERO
    }
}

呈现错误的 View 页面部分如下:

   <g:hasErrors bean="${donation}">                                                         
        <g:eachError var="error" bean="${donation}">
            <li><g:message error="${error}"/></li>
        </g:eachError>
    </g:hasErrors>      

终于在 message.properties添加的行如下:

com.abc.def.eventDonation.customDonationMin.min = Minimum limit cannot be less than 0

但是显示的错误是:

customDonationMin in class com.abc.def.EventDonation with value -10 is less than minimum value 0

您知道不显示自定义错误消息的原因吗？

Answer 1

原来我使用了错误的消息代码。这是 min 属性的消息代码。

className.propertyName.min.notmet

引用: http://grails.github.io/grails-doc/2.2.1/ref/Constraints/min.html