Question

我有一组stream个视频，其中包含district所属的外键。但是，我点击了edit或delete按钮，我得到了;

Error 2012-08-30 23:51:16,424 [http-bio-8080-exec-7] ERROR errors.GrailsExceptionResolver  - MissingMethodException occurred when processing request: [GET] /ctv/stream/list
No signature of method: ctv.Stream.findAllByDistrict() is applicable for argument types: () values: []
Possible solutions: findAllByDistrict([Ljava.lang.Object;). Stacktrace follows:
Message: No signature of method: ctv.Stream.findAllByDistrict() is applicable for argument types: () values: []
Possible solutions: findAllByDistrict([Ljava.lang.Object;)

问题是因为

<g:form>
  <g:hiddenField name="id" value="${streamInstance?.id}" />
  <span class="button"><g:actionSubmit class="edit" action="edit" id="${params['district']}" value="${message(code: 'default.button.edit.label', default: 'Edit')}" /></span>
  <span class="button"><g:actionSubmit class="delete" action="delete" id="${params['district']}" value="${message(code: 'default.button.delete.label', default: 'Delete')}" onclick="return confirm('${message(code: 'default.button.delete.confirm.message', default: 'Are you sure?')}');" /></span>
</g:form>

我正在尝试将district ID发送到edit页面，但我无法做到。有人可以帮帮我吗？假设district=10，那么我需要通过10标记传递值<g:actionSubmit>。我怎么能这样做？

Answer 1

我认为actionSubmit标记不支持id参数。它只支持行动和价值。

您必须将区域ID放在隐藏字段中

<g:hiddenField name="district" value="${params['district']}" />

Answer 2

使用简单的g：link <g:link action="edit" id="${streamInstance.id}" >这里不需要g：form。还要检查您的控制器设置。

class MakeAppController {
static allowedMethods = [ update: "POST", delete: "GET",save: "GET"]

因为Grails框架允许在控制器中检查请求。

将外键传递给编辑/删除视图grails

2 个答案: