Merge pull request #1490 from divyanshumehta/issue_1488

Added Rubocop Cop:Rails/Delegate

.rubocop.yml

@@ -188,6 +188,10 @@ Rails:
 Rails/Validation:
   Enabled: true
 
+# Looks for delegations, that could have been created automatically with delegate method
+Rails/Delegate:
+  Enabled: true
+
 #################### Performance ###############################
 
 # Identifies places where gsub can be replaced by tr or delete.

.rubocop_todo.yml

@@ -124,12 +124,6 @@ Rails/Blank:
 Rails/Date:
   Enabled: false
 
-# Offense count: 1
-# Cop supports --auto-correct.
-Rails/Delegate:
-  Exclude:
-    - 'app/serializers/speaker_serializer.rb'
-
 # Offense count: 3
 # Cop supports --auto-correct.
 # Configuration parameters: Whitelist.

CONTRIBUTING.md

@@ -131,7 +131,7 @@ We are using [rubocop](https://github.com/bbatsov/rubocop) as a style checker. I
 vagrant exec bundle exec rubocop
 ```
 
-You can read through current enabled rules in `.rubocop.yml` file. Explanations of the defined [rules](http://rubydoc.info/github/bbatsov/rubocop/master/frames) can be found in modules [Cop::Lint](http://rubydoc.info/github/bbatsov/rubocop/master/Rubocop/Cop/Lint) and [Cop::Style](http://rubydoc.info/github/bbatsov/rubocop/master/Rubocop/Cop/Style).
+You can read through current enabled rules in `.rubocop.yml` file. Explanations of the defined [rules](http://rubydoc.info/github/bbatsov/rubocop/master/frames) can be found in modules [Cop::Lint](http://rubydoc.info/github/bbatsov/rubocop/master/Rubocop/Cop/Lint) and [Cop::Style](http://rubydoc.info/github/bbatsov/rubocop/master/Rubocop/Cop/Style) and [Cop:Rails](https://rubocop.readthedocs.io/en/latest/cops_rails/).
 Additionally you can read through the [ruby style-guide](https://github.com/bbatsov/ruby-style-guide) to better understand core principles.
 
 ### Test Suite

app/serializers/speaker_serializer.rb

@@ -3,7 +3,5 @@ class SpeakerSerializer < ActiveModel::Serializer
 
   attributes :name, :affiliation, :biography
 
-  def name
+  delegate :name, to: :object
-    object.name
-  end
 end