源氏：如果/否则

发布于 2024-09-30 20:33:57 字数 513 浏览 0 评论 0原文

如何在 Genshi 模板语言中执行简单的 if/else？

我发现这张票，这似乎表明Genshi不支持if/else，但它并没有真正解释它支持什么。

我基本上只是想要这样的东西：

  <py:if test="c.row.currency">
  ${c.row.currency.upper()}
  <py:else>
  ${c.row.dataset_.currency.upper()} 
  </py:if>

但我得到“错误指令：其他”。我应该使用 py:choose 吗？我真的不知道如何将它用于 if/else 条件。

原文

How do I do a simple if/else in the Genshi templating language?

I've found this ticket, which seems to suggest that Genshi doesn't support if/else, but it doesn't really explain what it supports instead.

I basically just want something like this:

  <py:if test="c.row.currency">
  ${c.row.currency.upper()}
  <py:else>
  ${c.row.dataset_.currency.upper()} 
  </py:if>

But I get 'Bad Directive: else'. Should I be using py:choose instead? I can't really get my head around how to use it for an if/else condition.

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っ左 2024-10-07 20:33:57

目前，你不能在 Genshi 中使用 if do else 构造，并且据我所知，没有计划添加它。相反，就像您提到的那样，使用 py:choose。以下是如何使用 py:choose 作为 if/else 构造的类型：

<py:choose ...>
  <py:when test="...">
    ${c.row.currency.upper()}
  </py:when>
  <py:otherwise>
   ${c.row.currency.upper()}
  </py:otherwise>
</py:choose>

Currently, you can not if do else constructs in Genshi, and as far as I'm aware, there are no plans to add it. Instead, like you mentioned, use py:choose. The following is how you use py:choose as a type of if/else construct:

<py:choose ...>
  <py:when test="...">
    ${c.row.currency.upper()}
  </py:when>
  <py:otherwise>
   ${c.row.currency.upper()}
  </py:otherwise>
</py:choose>

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