在没有Rails的情况下调用ERB:未定义的方法“原始" [英] Calling ERB without Rails: undefined method 'raw'

问题描述

我正在使用 ERB引擎生成我的Rails网站页面的离线HTML版本.当用Rails显示时，页面显示的很好，但是我自己无法使用ERB生成(尽管使用相同的ERB模板).

I am using the ERB engine to generate an offline HTML version of a page of my Rails website. The page shows great when shown by Rails, but I have trouble generating with ERB by myself (despite using the same ERB template).

首先，我得到错误 undefined method't'，我通过将所有<％= t(...)％> 调用替换为错误来解决了该错误<％= I18n.translate(...)％> .

First I was getting the error undefined method 't' and I solved it by replacing all <%=t(...)%> calls with <%=I18n.translate(...)%>.

现在，我得到了未定义的方法'raw'.我应该用其他东西替换所有<％= raw(...)％> 调用吗?如果是，那是什么?

Now I get undefined method 'raw'. Should I replace all <%=raw(...)%> calls with something else? If yes, what?

推荐答案

raw 在actionpack/action_view库中定义为帮助程序，因此如果没有Rails，您将无法使用它.但是ERB模板显示其输出时没有任何转义:

raw is defined as helper in actionpack/action_view library so that without rails you can't use it. But ERB templating shows its output without any escaping:

require 'erb'
@person_name = "<script>name</script>"
ERB.new("<%= @person_name %>").result # => "<script>name</script>" 

因此，出于逃避的目的，有 ERB :: Util#html_escape 方法

And because of this for purpose of escaping there is ERB::Util#html_escape method

include ERB::Util
ERB.new("<%= h @person_name %>").result # => "&lt;script&gt;name&lt;/script&gt;" 

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