Add a method to array object

I've found this post:

Array#add_condition But i didn't understand to how implement it in my rails project

How can i do i开发者_运维技巧t?

thanks

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Just create add_condition.rb file, paste code snippet from your link and save it in lib directory in your Rails app.

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Copy and paste that code into a file. There — the method is added to Array. The lib directory would be a good place for it.