Grails 控制器错误
我有这个 DomainClass：
package cm
class XXX{
String city
String website
static constraints = {
city(nullable: true)
website(nullable: true)
}
static mapping = {
id column:'xxx_id'
city column: 'xxx_city'
website column: 'xxx_website'
table "xxx_XXX"
version false
}
}
控制器：
class ConferenceController {
static allowedMethods = [save: "POST", update: "POST", delete: "POST"]
def index = {
redirect(action: "list", params: params)
}
def list = {
params.max = Math.min(params.max ? params.int('max') : 10, 100)
[XXXInstanceList: XXX.list(params), XXXInstanceTotal: XXX.count()]
}
def save = {
def XXXInstance= new XXX(params)
if (!XXXInstance.save(flush: true)) {
render view: 'add', model: [XXXInstance: XXXInstance]
return
}
//flash.message = "${message(code: 'default.created.message', args: [message(code: 'person.label', default: 'Person'), personInstance.id])}"
redirect(uri:"/index.gsp")
}
}
和我的 add.gsp 页面：
<head>
<title> xXXx</title>
<meta name="layout" content="main2" />
</head>
...
<g:form controller="XXX" action="save">
<g:hasErrors bean="${XXXInstance}">
<div class="errors">
<g:renderErrors bean="${XXXInstance}" as="list" />
</div>
</g:hasErrors>
year
<g:textField name="year" /><br>
website
<g:textField name="website" /><br>
<g:submitButton name="save2" value="Save" />
</g:form></div>
</div>
...
</body>
使用当前代码，一切正常，但是当约束失败时，它会显示相应的错误，但写入的值消失了。我无法弄清楚这一点- 我尝试了很多方法，但我确信解决方案和我的问题一样简单 -.- 请帮忙。
I have this DomainClass:
package cm
class XXX{
String city
String website
static constraints = {
city(nullable: true)
website(nullable: true)
}
static mapping = {
id column:'xxx_id'
city column: 'xxx_city'
website column: 'xxx_website'
table "xxx_XXX"
version false
}
}
The Controller:
class ConferenceController {
static allowedMethods = [save: "POST", update: "POST", delete: "POST"]
def index = {
redirect(action: "list", params: params)
}
def list = {
params.max = Math.min(params.max ? params.int('max') : 10, 100)
[XXXInstanceList: XXX.list(params), XXXInstanceTotal: XXX.count()]
}
def save = {
def XXXInstance= new XXX(params)
if (!XXXInstance.save(flush: true)) {
render view: 'add', model: [XXXInstance: XXXInstance]
return
}
//flash.message = "${message(code: 'default.created.message', args: [message(code: 'person.label', default: 'Person'), personInstance.id])}"
redirect(uri:"/index.gsp")
}
}
and my add.gsp page:
<head>
<title> xXXx</title>
<meta name="layout" content="main2" />
</head>
...
<g:form controller="XXX" action="save">
<g:hasErrors bean="${XXXInstance}">
<div class="errors">
<g:renderErrors bean="${XXXInstance}" as="list" />
</div>
</g:hasErrors>
year
<g:textField name="year" /><br>
website
<g:textField name="website" /><br>
<g:submitButton name="save2" value="Save" />
</g:form></div>
</div>
...
</body>
With this current code, everything works fine, but when a contraint is failed, it is showns the corresponding error but the written values are gone.. I cant figure this out - i'v tried a lot of things, but im sure the solution is as easy as my question -.- Please help.
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
我认为您应该检查
YOUR_PROJECT\grails-app\i18n文件夹中的 *.properties 文件。他们有翻译的定义。研究一下，如果需要的话可以参考文档，你就会明白Grails是如何进行翻译的。并取消控制器中以下行的注释：
I think you should check the *.properties file in
YOUR_PROJECT\grails-app\i18nfolder. They have the definition for translation. Investigate it for a time and refer to the document if need, you will understand how Grails perform translation.And uncomment the following line in your controller: