grails - 更新或更改Grails中的用户数据表单

Question

我必须在Grails中编写一个更新或更改用户数据表单。这是我的表格:

<g:form class="form-signin" controller="VisitorSpace">
    <label for="login" class="sr-only">Login</label>
    <g:textField id="login" class="form-control" name="login" placeholder="login" required="" autofocus=""/>
    <label for="firstName" class="sr-only">Your name</label>
    <g:textField id="firstName" class="form-control" name="firstName" placeholder="Your name" required="" type="text"/>
    <label for="lastName" class="sr-only">Your lastname</label>
    <g:textField id="lastName" class="form-control" name="lastName" placeholder="Your lastname" required=""  type="text"/>

    <label for="inputEmail" class="sr-only">e-mail</label>
    <g:textField id="inputEmail" class="form-control" name="email" placeholder="e-mail" required="" autofocus="" data-translatable-string="Email address" type="email"/>
    <label for="inputPassword" class="sr-only">Password</label>
    <g:passwordField id="inputPassword" class="form-control" name="password" placeholder="Password" required="" data-translatable-string="Password"/>

    <label for="confirmPassword" class="sr-only">Confirm password</label>
    <g:passwordField id="confirmPassword" class="form-control" name="controlPassword" placeholder="Confirm password" required="" data-translatable-string="Password"/>
    <g:actionSubmit value="Commit change"  action="updateUserData" class="btn btn-lg btn-primary btn-block">Commit change</g:actionSubmit>
</g:form>

旧数据必须显示在字段中，因此必须将其从数据库发送到加载 View 表单的那一刻。我知道，有可能调用所需的 Controller 方法来执行此操作，并且必须在加载 View 表单之前或同时调用此方法。但是该怎么做呢？

Answer 1

将value属性与要从 Controller 获取的当前数据一起添加到输入字段元素中。这就是您要的吗？

<g:textField id="lastName" value="${objectInstance.lastName}" ... />