如何在Rails中放置文本字段而不是％{...}？

Question

我有下一个字符串：

'The weather is too %{condition} today.'

现在我想粘贴而不是%{condition}一个文本字段，所以它看起来像：

The weather is too __text_field__ today.

我试过了：

if text.include? "%{"
    =text_field_tag(:q, nil, class: "")

但它在整个句子之后粘贴。如何在文本字段中添加/替换%{}？

Answer 1

您可以使用Kernel#sprintf

= sprintf('The weather is too %s today.', 
   text_field_tag(:q, nil, class: "")).html_safe

或String#gsub

= 'The weather is too %{condition} today.'.
  gsub(/%{(\w*)}/, text_field_tag(:q, nil, class: "")).html_safe

Answer 2

@max的片段已经足够好了，但回答了所说的确切问题，它将是：

= text % {condition: text_field_tag(:q, nil, class: "")).html_safe}

Answer 3

这将有效

("The weather is too %{condition} today." % { condition: text_field_tag(:q, nil, class: "") }).html_safe