CODEWITHSUNDEEP
ruby-on-rails
Blackninja543
Blackninja543

Reputation: 3709

Execute Ruby Function in Rails

In my index view I am looking to add a button that will execute a function called myFunction(myArg). This function is located in behaviours/myRubyFile.rb. How can I create a button that executes that function with a particular argument.

EDIT: Now I am getting a new error

The action 'my_func' could not be found for FunctionsController

However there is a function my_func defined in FunctionsController.

Upvotes: 1

Views: 156

Answers (1)

Erez Rabih
Erez Rabih

Reputation: 15788

Generally, you'd want to send a request to the server from that button, so the server runs myFunction. To achieve this follow these steps:

1 - make sure behaviours/myRubyFile.rb defines a module:

module MyRubyModule
  def myFunction(arg)
    #Your logic here
  end
end

2 - define a route in routes.rb:

match '/my_func' => "functions#my_func"

3 - define FunctionsController:

class FunctionsController < ApplicationController
  include MyRubyModule

  def my_func
    arg = params[:arg]
    myFunction(arg)
  end
end

4 - create a button in the view to send the request to the server:

<%= button_to "Button", {:action => "my_func", :controller => "functions", :arg => "YOUR ARG HERE"} %>

I haven't tested this code, but it should do the trick.

EDIT: added :arg => "YOUR ARG HERE" to the route (Thnx nzifnab)

Upvotes: 2

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