rails对于字符串是否与`parameterize`相反？

I used parameterize method. I want to de-parameterize it. Is there a method to do the opposite of parameterize?

我使用参数化方法。我想取消参数化。有没有方法与参数化相反？

2 个解决方案

#1

No, there is not. parameterize is a lossy conversion, you can't convert it back.

不，那里没有。 parameterize是一个有损转换，你无法将其转换回来。

Here's an example. When you convert

这是一个例子。当你转换

My Awesome Pizza

into

成

my-awesome-pizza

you have no idea if the original string was

你不知道原来的字符串是不是

My Awesome Pizza
MY AWESOME PIZZA

etc. This is a simple example. However, as you can see from the source code, certain characters are stripped or converted into a separator (e.g. commas) and you will not be able to recover them.

这是一个简单的例子。但是，正如您从源代码中看到的那样，某些字符被剥离或转换为分隔符（例如逗号），您将无法恢复它们。

If you just want an approximate conversion, then simply convert the dashes into spaces, trim multiple spaces and apply an appropriate case conversion.

如果您只想进行近似转换，则只需将破折号转换为空格，修剪多个空格并应用适当的大小写转换。

#2

I'm with Simone on this one but you can always go with

我和Simone在一起，但你可以随时随地

def deparametrize(str)
  str.split("-").join(" ").humanize
end

#1