How to Monkey Patch in Ruby on Rails?

Question

An example of the real world is used.

I want to install the WillPaginate :: LinkRenderer.to_html monkey patch.

So far I have tried:

• Created a file in the folder: lib / monkeys / will_paginate_nohtml.rb
• Added in config / environment.rb: requires "monkeys / will_paginate_nohtml" at the end of the file
• Inside this file, it was my code:

e

module Monkeys::WillPaginateNohtml def to_html debugger super end end WillPaginate::LinkRenderer.send(:include, Monkeys::WillPaginateNohtml) 

But somehow the debugger does not go through. It looks like the fix failed.

Any help would be appreciated, thanks!

Answer 1

What about this :-) The solutions from @shingana, @kandadaboggu will not work, since there is no “super” here. You want to call the original version, not the super version.

 module WillPaginate class LinkRenderer alias_method :to_html_original, :to_html def to_html debugger to_html_original end end end 

Answer 2

The name of your question is incorrect. Honestly, I think you probably just want to set up the will_paginate page list structure, which can be done in different ways.

So, in your case, the right way is to extend the visualization tool. For example, load from the initializer (via config / initializers) the following:

 class CustomPaginationRenderer < WillPaginate::LinkRenderer def to_html # Your custom code, debugger etc end end 

Then, for your application to use this renderer, add the following to the config / environment.rb file:

 WillPaginate::ViewHelpers.pagination_options[:renderer] = 'CustomPaginationRenderer' 

Answer 3

I think you need to open a method

 module WillPaginate class LinkRenderer def to_html debugger super end end end 

Answer 4

Try the following:

 class WillPaginate::LinkRenderer def to_html debugger super end end