ruby-on-rails – rails-显示文本字段中的certian字符数

我正在运行一个rails项目,我正在显示一个通常太长的文本字段.如果有任何我可以调用的东西只在视图页面上显示20个单词或120个字符？

解决方法

您可能对TextHelper的 truncate功能感兴趣：

truncate("Once upon a time in a world far far away")
  # => Once upon a time in a world f...

  truncate("Once upon a time in a world far far away",:length => 14)
  # => Once upon a...

  truncate("And they found that many people were sleeping better.",:length => 25,"(clipped)")
  # => And they found that many (clipped)

  truncate("And they found that many people were sleeping better.",:omission => "... (continued)",:length => 15)
  # => And they found... (continued)