Rails Axlsx gem在哪里定义函数

Question

I'm using the axlsx gem to create excel spreadsheets in my app. I saw a very useful answer for one of my problems here:

AXLSX merge cells inside a style

I would like to define a function that'll be available for all worksheets but I'm not sure where to put it.

Answer 1

Check out the comment below the answer you have posted: "you can place them anywhere you like as long as you include them in the file you're using them in. For rails if you are using the patch methods you could place them in the initializers folder and then these methods will always be accessible. "

Since you want to have this functionality on every single Worksheet, it suggests to place the code inside the config/initializers/ folder of your app. The files inside that folder are loaded when your application server starts and placing the code inside a

module Axlsx
  class Worksheet 
  end
end

will patch those classes with your new function. That will allow you to call your function like so: worksheet_object.merge_last_row