Fix lint errors

app/controllers/ajax/relationship_controller.rb

@@ -16,7 +16,7 @@ class Ajax::RelationshipController < AjaxController
       type:         params[:type]
     )
     @response[:success] = true
-    @response[:message] = t('messages.friend.create.success')
+    @response[:message] = t("messages.friend.create.success")
   rescue Errors::Base => e
     @response[:message] = t(e.locale_tag)
   ensure
@@ -30,7 +30,7 @@ class Ajax::RelationshipController < AjaxController
       type:         params[:type]
     )
     @response[:success] = true
-    @response[:message] = t('messages.friend.create.success')
+    @response[:message] = t("messages.friend.create.success")
   rescue Errors::Base => e
     @response[:message] = t(e.locale_tag)
   ensure

app/controllers/ajax_controller.rb

@@ -59,7 +59,7 @@ class AjaxController < ApplicationController
 
     @response = {
       success: false,
-      message: I18n.t('messages.parameter_error', parameter: e.param.capitalize),
+      message: I18n.t("messages.parameter_error", parameter: e.param.capitalize),
       status:  :parameter_error
     }
 
@@ -75,8 +75,8 @@ class AjaxController < ApplicationController
   def build_response
     @response = {
       success: false,
-      message: '',
-      status: 'unknown'
+      message: "",
+      status:  "unknown"
     }
   end
 

app/controllers/user_controller.rb

@@ -96,6 +96,7 @@ class UserController < ApplicationController
     end
   end
 
+  # rubocop:disable Metrics/AbcSize
   def followings
     @title = 'Following'
     @user = User.where('LOWER(screen_name) = ?', params[:username].downcase).includes(:profile).first!
@@ -109,6 +110,7 @@ class UserController < ApplicationController
       format.js { render "show_follow", layout: false }
     end
   end
+  # rubocop:enable Metrics/AbcSize
 
   def questions
     @title = 'Questions'

app/models/relationships/follow.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Relationships::Follow < Relationship
   after_create do
     Notification.notify target, self

app/models/user/relationship/follow.rb

@@ -21,6 +21,7 @@ class User
       # Follow an user
       def follow(target_user)
         raise Errors::FollowingSelf if target_user == self
+
         create_relationship(active_follow_relationships, target_user)
       end
 

app/models/user/timeline_methods.rb

@@ -7,6 +7,6 @@ module User::TimelineMethods
 
   # @return [Array] the users' timeline
   def timeline
-    Answer.where('user_id in (?) OR user_id = ?', following_ids, id).order(:created_at).reverse_order.includes(comments: [:user, :smiles], question: [:user], user: [:profile], smiles: [:user])
+    Answer.where("user_id in (?) OR user_id = ?", following_ids, id).order(:created_at).reverse_order.includes(comments: %i[user smiles], question: [:user], user: [:profile], smiles: [:user])
   end
 end

db/migrate/20211231155702_add_type_to_relationships.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddTypeToRelationships < ActiveRecord::Migration[5.2]
   def up
     add_column :relationships, :type, :string

db/migrate/20211231212335_remove_relationship_counters_from_users.rb

@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 class RemoveRelationshipCountersFromUsers < ActiveRecord::Migration[5.2]
   def change
-    remove_column :users, :follower_count
-    remove_column :users, :friend_count
+    remove_column :users, :follower_count, :integer
+    remove_column :users, :friend_count, :integer
   end
 end

lib/exporter.rb

@@ -232,8 +232,8 @@ class Exporter
 
   def user_stub(user)
     uobj = {}
-    %i(answered_count asked_count comment_smiled_count commented_count created_at
-       id permanently_banned screen_name smiled_count).each do |f|
+    %i[answered_count asked_count comment_smiled_count commented_count created_at
+       id permanently_banned screen_name smiled_count].each do |f|
       uobj[f] = user.send f
     end
 

lib/types.rb

@@ -1,9 +1,9 @@
 # frozen_string_literal: true
 
-require 'dry-types'
+require "dry-types"
 
 module Types
   include Dry.Types()
 
-  RelationshipTypes = Types::String.enum('follow')
+  RelationshipTypes = Types::String.enum("follow")
 end

lib/use_case/relationship/create.rb

@@ -29,6 +29,7 @@ module UseCase
 
       def find_source_user
         return current_user if current_user.is_a?(::User)
+
         ::User.find_by!(screen_name: current_user)
       rescue ActiveRecord::RecordNotFound
         raise Errors::UserNotFound
@@ -36,6 +37,7 @@ module UseCase
 
       def find_target_user
         return target_user if target_user.is_a?(::User)
+
         ::User.find_by!(screen_name: target_user)
       rescue ActiveRecord::RecordNotFound
         raise Errors::UserNotFound

spec/controllers/ajax/relationship_controller_spec.rb

@@ -5,7 +5,7 @@ require "rails_helper"
 
 describe Ajax::RelationshipController, type: :controller do
   shared_examples_for "params is empty" do
-    let(:params) { }
+    let(:params) { {} }
 
     include_examples "ajax does not succeed", "is required"
   end