forms - 在Grails工作流程中选择字段

Question

我在grails Webflow中预填充下拉列表时遇到问题

我有一个用于webflow的 Controller

 class ClearanceRequestController {

def index() {
    redirect(action: "start")
}

def startFlow = {
    contact {
        on('next') {
            flow.developer = params.developer
            flow.project = params.project
            flow.projectResponsible = params.projectResponsible
            flow.email = params.email

            [flow : flow]
        }.to('application')
        on('cancel').to('finish')
   ...

该 View 如下所示:
contact.gsp

  <g:if test="${message}">
        <div class="message">${message}</div>
    </g:if>
    <g:form action="start" method="post">
        <div class="dialog">
            <table>
            <tbody>
             <tr class="prop">
                    <td valign="top" class="name">
                        <label for="projectName">Projekt:</label>
                    </td>
                    <td valign="top">
                        <input type="text" id="projectName" name="project" value="${params.project}" />
                    </td>
                </tr>
                <g:select name="state" from="${Project?.DIVISION_OPTIONS}" value="${Project?.DIVISION_OPTIONS}"/>

这是项目定义

  class Project {

static DIVISION_OPTIONS = ["A", "B", "C", "D"]

String name
String division


String toString(){
    "$name"
}


static constraints = {
    name(unique: true)
    division(inList: DIVISION_OPTIONS)

 }
}

我不知道如何从约束中获取数据。我试图访问

 Project.constraints.division.inList 

要么

 Project.DIVISION_OPTIONS

但是两者都没有用。我假设我必须在某个地方初始化该项目并将其传递给contact.gsp，但是我不知道如何。

Answer 1

好的，我知道了，只需在页面中导入Project，例如

<%@ page import="com.companyName.Project" contentType="text/html;charset=UTF-8" %>

或类似:

 <g:select name="state" from="${com.companyName.Project?.DIVISION_OPTIONS}" value="${com.companyName.Project?.DIVISION_OPTIONS}"/>