gistfile1.txt

module ApplicationHelper
require 'pry'

  def admins_only(&block)
    block.call if current_user.try(:admin?)
  end
  
  def author_only(&block)
    binding.pry
    block.call if current_user == @topic.author.email
  end
end

gistfile2.txt

No such file to load -- pry

Extracted source (around line #2):
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module ApplicationHelper
require 'pry'

  def admins_only(&block)
    block.call if current_user.try(:admin?)
  end

gistfile3.txt

From: /home/ubuntu/workspace/app/helpers/application_helper.rb @ line 8 ApplicationHelper#author_only:

     7: def author_only(&block)
 =>  8:   binding.pry
     9:   block.call if current_user == @topic.author.email
    10: end

[1] pry(#<#<Class:0x007fda3e84c608>>)> current_user
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = ?  ORDER BY "users"."id" ASC LIMIT 1  [["id", 2]]
=> #<User:0x007fda38e59100
 id: 2,
 email: "user@forums.com",
 encrypted_password: "$2a$11$zUKy8XJnFahKuVB/QOBDjOxxjA.PsuxvxQ74k4ieiRalfW.OV5yj2",
 reset_password_token: nil,
 reset_password_sent_at: nil,
 remember_created_at: nil,
 sign_in_count: 5,
 current_sign_in_at: Fri, 20 May 2016 00:14:23 UTC +00:00,
 last_sign_in_at: Thu, 19 May 2016 23:40:45 UTC +00:00,
 current_sign_in_ip: "45.50.5.253",
 last_sign_in_ip: "45.50.5.253",
 created_at: Wed, 18 May 2016 05:14:54 UTC +00:00,
 updated_at: Fri, 20 May 2016 00:14:23 UTC +00:00,
 admin: false>
[2] pry(#<#<Class:0x007fda3e84c608>>)> @topic.author.email
=> "admin@forums.com"