How to send arguments to Ruby program

Question

I tried this code in order to send arguments to Ruby program:

namespace :tnx do

  require_relative "transactions.rb"
  include Cnp_transactions_modes

  task :generate, [:clean_all] => [:environment]  do |t, args|

    if args[: clean_all] == 'true'
      // something
    end

    if args[:times]
      Cnp_transactions_modes.create_tnx(args[:times])
    else 
     puts "\nSet some number\n"
    end    
  end
end

When I run the code this way:

bundle exec rake test:generate['true','30']

I get Set some number

Can you give some advice how I can fix the code?

score 0 · Answer 1 · answered Mar 31 '17 at 11:58

0

Try declaring like this

task :generate, [:clean_all, :times] => [:environment]  do |t, args|

and calling like this

bundle exec rake tnx:generate['true','30']

answered Mar 31 '17 at 11:58

gates

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I get NoMethodError: undefined method `times' for "30":String – Peter Penzov Mar 31 '17 at 12:05
Try bundle exec rake tnx:generate['true',30] – gates Mar 31 '17 at 12:07
I get NoMethodError: undefined method `times' for "30":String – Peter Penzov Mar 31 '17 at 12:10
even after removing the quotes around 30? – gates Mar 31 '17 at 12:11
Yes, can you show me the some better way how I can refractor the code? – Peter Penzov Mar 31 '17 at 12:12
`Cnp_transactions_modes.create_tnx(args[:times].to_i)` can you try this – gates Mar 31 '17 at 12:14
Now I get NoMethodError: undefined method `empty?' for nil:NilClass – Peter Penzov Mar 31 '17 at 12:24
1

Congrats! you have confused yourself with the previous answer by Eric and confused my answer with it and somehow did update your editor, but updated the question. – gates Mar 31 '17 at 12:28
Arguments are always strings, just like [`gets`](http://ruby-doc.org/core-2.4.1/Kernel.html#method-i-gets) returns the input as a string. Call it via `rake tnx:generate[true,30]` (i.e. without quotes) and convert the arguments within the rake task. – Stefan Mar 31 '17 at 12:32
@gates: Ahah. I also got confused. I've looked at this question and asked myself : "Wait, where's my answer?" :) – Eric Duminil Mar 31 '17 at 13:01
So where is your answer Eric :)? – gates Mar 31 '17 at 13:30

How to send arguments to Ruby program

1 Answers1