如何从另一个复合组件更新复合组件表单?

问题描述

我在尝试更新外部表单时遇到问题.更清楚地说，我有一个主要的表单，其中包含2个不同的复合组件，让我们调用include1和include2.我要更新的页面是在从include1搜索之后正在更新的include2.

I'm having problem trying to update an external form. To be more clear, I have a primary form that includes 2 different composite components, lets call include1 and include2. The page I want to update is the include2 being update after a search from a include1.

这就是包含这两个页面的方式.

this is how the 2 pages are being included.

<ui:define name="include1">
    <ui:param name="mbean" value="#{currentBean}" />
    <libcomp:include1 />
</ui:define>

<ui:define  name="include2">
    <ui:param name="mbean" value="#{currentBean}" />
    <libcomp:include2>
</ui:define>

现在，在include1中，我有一个按钮试图更新include2内的表单

Now, in include1 I have a button that tries to update the form inside include2

update="include2Form"

在我的include2中有

and in the include2 I have

<cc:implementation>
    <h:form
        id="include2Form">

当我尝试加载页面时，总是会收到错误500消息，提示未找到"include2Form"！

When I try to load the page I always get an Error 500 saying that the "include2Form" has not been found!

我来这里之前尝试了一些研究，但没有帮助我，我试图将表格更改为div，尝试通过参数，面板，带有prependId = false的表格等传递ID ...

I tried some research before coming here but none helped me, I tried to change the form to a div, tried to pass id by parameter, a panel, form with prependId=false etc...

使用fireBug，我发现JSF或Primefaces正在向我的表单/组件ID中添加一个随机字符串...为

Using fireBug I found out that JSF or Primefaces is adding an random String to my form/components ID...as

id ="j_idt99:include2Form:myTable"

id="j_idt99:include2Form:myTable"

我认为这是我遇到问题的原因，我正在努力寻找解决方法.

I think that is the reason of my problem and I'm trying to find a work around.

有人可以帮我吗?

推荐答案

首先，您ID中的其他字符串直接来自JSF，与PrimeFaces无关，因为Composite Component本身是 UINamingContainer .这是预期的行为，甚至是必要的，因为在同一视图中多次使用同一CC时，否则将导致重复的ID冲突.

First of all, the additional string in your ID directly comes frome JSF, unrelated to PrimeFaces, because the Composite Component itself is a UINamingContainer. This is expected behavoir and even necessary, because otherwise you would end up in duplicate ID conflicts, when using the same CC multiple times in the same view.

我认为完全没有复合组件的形式在内部 是不好的设计.要提高可重用性，只需摆脱这种形式，并使用process，partialSubmit，也许是f:subView等.

In my opinion it is bad design to have a form inside a Composite Component at all. To improve reusability just get rid of that form and work with process, partialSubmit, maybe f:subView etc..

此外，您应该重新考虑您的设计.一个复合组件必须更新的点. 外部组件可能是一个指标，表明复合组件不是满足您需求的完美方法.

Beside that you should rethink your design. The point that one Composite Component has to update s.th. outside the component might be an indicator, that a Composite Component is not the perfect approach to cover your requirements.

但是，如果您确实要 更新视图的某些部分到之外，只需通过Composite属性将要更新的内容的ID传递给CC并让CC不在乎更新内容和更新地点

However, if you really have to update some parts of your view outside the composite component, just pass the ID of what to update via a composite attribute to your CC and let the CC not care about what and where to update

<composite:interface>
    <composite:attribute name="update" required="true" />
</composite:interface>

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