fb:req-choice url 中的变量插值

发布于 2024-08-05 15:30:40 字数 800 浏览 2 评论 0原文

对于 Facebook Connect 应用程序的邀请功能，我需要能够判断用户响应了哪个邀请。我决定依靠 Facebook UID 来实现这一点。如何将该 ID 包含在 Facebook 为 fb:req-choice 生成的 URL 中？

<fb:request-form action="#{@post_url}"
                method="POST"
                invite="true"
                type="my_app"
                content="<fb:name uid='#{current_user.facebook_uid}' useyou='false' /> wants to invite you to to my_app. To join him simple click 'Accept' below.<fb:req-choice url='http://my_app.com/invitation/?fb_uid={uid}' label='Accept' />">
   <fb:multi-friend-selector
              showborder="false"
              actiontext="Invite your Facebook Friends to shop on Yumshare" />
</fb:request-form>

请注意 fb:req-choice 的 url 属性中的 {uid}。这应该是被邀请用户的 uid，因此需要在 Facebook 端填写。这可能吗？

原文

For my invitation feature of my Facebook Connect app I need to be able to tell which invitation a user responds to. I have decided to rely on the Facebook UID for that. How can I include that ID in the url that Facebook generates for fb:req-choice?

<fb:request-form action="#{@post_url}"
                method="POST"
                invite="true"
                type="my_app"
                content="<fb:name uid='#{current_user.facebook_uid}' useyou='false' /> wants to invite you to to my_app. To join him simple click 'Accept' below.<fb:req-choice url='http://my_app.com/invitation/?fb_uid={uid}' label='Accept' />">
   <fb:multi-friend-selector
              showborder="false"
              actiontext="Invite your Facebook Friends to shop on Yumshare" />
</fb:request-form>

Notice the {uid} in the url attrib for fb:req-choice. This is supposed to be the uid of the user that is being invited and therefore needs to be filled in on Facebooks side. Is that possible?

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半衾梦 2024-08-12 15:30:40

我使用的解决方案并不完全等同于上面的解决方案，但足够接近。

当加载包含 fb:req-choice 表单的页面时，生成一个唯一的令牌（当然必须在此时保留该令牌）并将其粘贴到接受 URL 中。像这样：

<fb:request-form action="#{@post_url}"
                method="POST"
                invite="true"
                type="my_app"
                content="<fb:name uid='#{current_user.facebook_uid}' useyou='false' /> wants to invite you to to my_app. To join him simple click 'Accept' below.<fb:req-choice url='http://my_app.com/invitation/?token=#{@token}' label='Accept' />">
   <fb:multi-friend-selector
              showborder="false"
              actiontext="Invite your Facebook Friends to shop on Yumshare" />
</fb:request-form>

这样您就可以跟踪邀请，但只能跟踪用户在该操作中邀请的一批朋友。

The solution I used is not totally equivalent to the above, but close enough.

When loading the page containing the fb:req-choice form, generate a unique token, which of course has to be persisted at that point, and stick that into the acceptance url. Like so:

<fb:request-form action="#{@post_url}"
                method="POST"
                invite="true"
                type="my_app"
                content="<fb:name uid='#{current_user.facebook_uid}' useyou='false' /> wants to invite you to to my_app. To join him simple click 'Accept' below.<fb:req-choice url='http://my_app.com/invitation/?token=#{@token}' label='Accept' />">
   <fb:multi-friend-selector
              showborder="false"
              actiontext="Invite your Facebook Friends to shop on Yumshare" />
</fb:request-form>

That way you can track the invitation but only in the batch of friends that the user invited in that action.

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