Add and apply Rails/PluckId rubocop rule

.rubocop.yml

@@ -270,6 +270,9 @@ Rails/OutputSafety:
   Exclude:
     - app/helpers/text_with_links_helper.rb
 
+Rails/PluckId:
+  Enabled: true
+
 Rails/PluralizationGrammar:
   Enabled: true
 

app/controllers/admin/stats_controller.rb

@@ -24,7 +24,7 @@ class Admin::StatsController < Admin::BaseController
                                                        .count(:voter_id)
 
     @user_ids_who_didnt_vote_proposals = @verified_users - @user_ids_who_voted_proposals
-    budgets_ids = Budget.where.not(phase: "finished").pluck(:id)
+    budgets_ids = Budget.where.not(phase: "finished").ids
     @budgets = budgets_ids.size
     @investments = Budget::Investment.where(budget_id: budgets_ids).count
   end

app/controllers/budgets/investments_controller.rb

@@ -44,7 +44,7 @@ module Budgets
     def index
       @investments = investments.page(params[:page]).per(PER_PAGE).for_render
 
-      @investment_ids = @investments.pluck(:id)
+      @investment_ids = @investments.ids
       @investments_map_coordinates = MapLocation.where(investment: investments).map(&:json_data)
 
       @tag_cloud = tag_cloud

app/helpers/proposals_dashboard_helper.rb

@@ -117,7 +117,7 @@ module ProposalsDashboardHelper
 
   def new_resources_since_last_login?(resources, new_actions_since_last_login)
     if resources.present?
-      resources.pluck(:id).any? { |id| new_actions_since_last_login.include?(id) }
+      resources.ids.any? { |id| new_actions_since_last_login.include?(id) }
     end
   end
 

app/models/budget/investment.rb

@@ -164,10 +164,10 @@ class Budget
       results = results.winners            if params[:advanced_filters].include?("winners")
 
       ids = []
-      ids += results.valuation_finished_feasible.pluck(:id) if params[:advanced_filters].include?("feasible")
-      ids += results.where(selected: true).pluck(:id)       if params[:advanced_filters].include?("selected")
-      ids += results.undecided.pluck(:id)                   if params[:advanced_filters].include?("undecided")
-      ids += results.unfeasible.pluck(:id)                  if params[:advanced_filters].include?("unfeasible")
+      ids += results.valuation_finished_feasible.ids if params[:advanced_filters].include?("feasible")
+      ids += results.where(selected: true).ids       if params[:advanced_filters].include?("selected")
+      ids += results.undecided.ids                   if params[:advanced_filters].include?("undecided")
+      ids += results.unfeasible.ids                  if params[:advanced_filters].include?("unfeasible")
       results = results.where(id: ids) if ids.any?
       results
     end
@@ -191,8 +191,8 @@ class Budget
       return results if max_per_heading <= 0
 
       ids = []
-      budget.headings.pluck(:id).each do |hid|
-        ids += Investment.where(heading_id: hid).order(confidence_score: :desc).limit(max_per_heading).pluck(:id)
+      budget.headings.ids.each do |hid|
+        ids += Investment.where(heading_id: hid).order(confidence_score: :desc).limit(max_per_heading).ids
       end
 
       results.where(id: ids)

app/models/concerns/randomizable.rb

@@ -3,7 +3,7 @@ module Randomizable
 
   class_methods do
     def sort_by_random(seed = rand(10_000_000))
-      ids = order(:id).pluck(:id).shuffle(random: Random.new(seed))
+      ids = order(:id).ids.shuffle(random: Random.new(seed))
 
       return all if ids.empty?
 

app/models/dashboard/action.rb

@@ -86,10 +86,7 @@ class Dashboard::Action < ApplicationRecord
     actions_for_today = get_actions_for_today(proposal)
     actions_for_date = get_actions_for_date(proposal, date)
 
-    actions_for_today_ids = actions_for_today.pluck(:id)
-    actions_for_date_ids = actions_for_date.pluck(:id)
-
-    actions_for_today_ids - actions_for_date_ids
+    actions_for_today.ids - actions_for_date.ids
   end
 
   private

app/models/legislation/question.rb

@@ -22,11 +22,11 @@ class Legislation::Question < ApplicationRecord
   scope :sorted, -> { order("id ASC") }
 
   def next_question_id
-    @next_question_id ||= process.questions.where("id > ?", id).sorted.limit(1).pluck(:id).first
+    @next_question_id ||= process.questions.where("id > ?", id).sorted.limit(1).ids.first
   end
 
   def first_question_id
-    @first_question_id ||= process.questions.sorted.limit(1).pluck(:id).first
+    @first_question_id ||= process.questions.sorted.limit(1).ids.first
   end
 
   def answer_for_user(user)

app/models/proposal.rb

@@ -114,7 +114,7 @@ class Proposal < ApplicationRecord
   end
 
   def self.not_followed_by_user(user)
-    where.not(id: followed_by_user(user).pluck(:id))
+    where.not(id: followed_by_user(user).ids)
   end
 
   def to_param

app/models/user.rb

@@ -243,7 +243,7 @@ class User < ApplicationRecord
     Comment.hide_all comment_ids
     Proposal.hide_all proposal_ids
     Budget::Investment.hide_all budget_investment_ids
-    ProposalNotification.hide_all ProposalNotification.where(author_id: id).pluck(:id)
+    ProposalNotification.hide_all ProposalNotification.where(author_id: id).ids
   end
 
   def full_restore