在 rails 中的单词中间截断字符串而不剪切 [英] Truncate a string without cut in the middle of a word in rails

问题描述

如何将文本截断到最近的位置，并且在没有在单词中间切割的情况下使用 rails 3?

How can i truncate a text to the closest position with rails 3 whithout cut in the middle of a word?

例如，我有字符串:

"Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Aenean eu leo quam. Pellentesque ornare sem lacinia quam venenatis vestibulum."

如果我剪了，我想剪成这样:

If i cut it, i want to cut like this :

"Praesent commodo cursus magna, vel scelerisque nisl ..."

而不是:

"Praesent commodo cursus magna, vel scelerisque nisl conse..."

推荐答案

如果您将分隔符传递给 truncate 方法，它将执行自然分词而不是在单词中间截断

If you pass in a separator to the truncate method it will perform a natural word break instead of truncating at a middle of a word

这样的事情应该可以工作(如果您想要默认的 30 个字符，请将长度更改为您想要完全删除的长度):

Something like this should work (vary the length to whatever you want to remove it altogether if you want the default of 30 characters):

truncate("Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Aenean eu leo quam. Pellentesque ornare sem lacinia quam venenatis vestibulum.", :length => 17, :separator => ' ')

有关截断选项的更多信息，请参见 文档

More information about the options you can have in truncate can be found in the Documentation

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