Remove deprecated finders

Gemfile

@@ -14,7 +14,6 @@ gem "protected_attributes"
 gem 'rails-observers'
 gem 'actionpack-page_caching'
 gem 'actionpack-action_caching'
-gem 'activerecord-deprecated_finders'
 # Supported DBs
 gem "mysql2", group: :mysql

Gemfile.lock

@@ -549,7 +549,6 @@ PLATFORMS
 DEPENDENCIES
   actionpack-action_caching
   actionpack-page_caching
-  activerecord-deprecated_finders
   acts-as-taggable-on
   annotate (~> 2.6.0.beta2)
   asciidoctor

app/controllers/admin/groups_controller.rb

@@ -52,6 +52,6 @@ class Admin::GroupsController < Admin::ApplicationController
   private
   def group
-    @group = Group.find_by_path(params[:id])
+    @group = Group.find_by(path: params[:id])
   end
 end

app/controllers/admin/projects_controller.rb

@@ -5,7 +5,7 @@ class Admin::ProjectsController < Admin::ApplicationController
   def index
     owner_id = params[:owner_id]
-    user = User.find_by_id(owner_id)
+    user = User.find_by(id: owner_id)
     @projects = user ? user.owned_projects : Project.all
     @projects = @projects.where("visibility_level IN (?)", params[:visibility_levels]) if params[:visibility_levels].present?

app/controllers/admin/users_controller.rb

@@ -100,6 +100,6 @@ class Admin::UsersController < Admin::ApplicationController
   protected
   def user
-    @user ||= User.find_by_username!(params[:id])
+    @user ||= User.find_by!(username: params[:id])
   end
 end

app/controllers/dashboard_controller.rb

@@ -41,7 +41,7 @@ class DashboardController < ApplicationController
                   current_user.authorized_projects
                 end
-    @projects = @projects.where(namespace_id: Group.find_by_name(params[:group])) if params[:group].present?
+    @projects = @projects.where(namespace_id: Group.find_by(name: params[:group])) if params[:group].present?
     @projects = @projects.where(visibility_level: params[:visibility_level]) if params[:visibility_level].present?
     @projects = @projects.includes(:namespace)
     @projects = @projects.tagged_with(params[:label]) if params[:label].present?

app/controllers/groups_controller.rb

@@ -87,7 +87,7 @@ class GroupsController < ApplicationController
   protected
   def group
-    @group ||= Group.find_by_path(params[:id])
+    @group ||= Group.find_by(path: params[:id])
   end
   def projects

app/controllers/profiles/groups_controller.rb

@@ -19,6 +19,6 @@ class Profiles::GroupsController < ApplicationController
   private
   def group
-    @group ||= Group.find_by_path(params[:id])
+    @group ||= Group.find_by(path: params[:id])
   end
 end

app/controllers/projects/issues_controller.rb

@@ -97,7 +97,7 @@ class Projects::IssuesController < Projects::ApplicationController
   def issue
     @issue ||= begin
-                 @project.issues.find_by_iid!(params[:id])
+                 @project.issues.find_by!(iid: params[:id])
                rescue ActiveRecord::RecordNotFound
                  redirect_old
                end
@@ -128,7 +128,7 @@ class Projects::IssuesController < Projects::ApplicationController
   # To prevent 404 errors we provide a redirect to correct iids until 7.0 release
   #
   def redirect_old
-    issue = @project.issues.find_by_id(params[:id])
+    issue = @project.issues.find_by(id: params[:id])
     if issue
       redirect_to project_issue_path(@project, issue)

app/controllers/projects/merge_requests_controller.rb

@@ -169,7 +169,7 @@ class Projects::MergeRequestsController < Projects::ApplicationController
   end
   def merge_request
-    @merge_request ||= @project.merge_requests.find_by_iid!(params[:id])
+    @merge_request ||= @project.merge_requests.find_by!(iid: params[:id])
   end
   def closes_issues

app/controllers/projects/milestones_controller.rb

@@ -76,7 +76,7 @@ class Projects::MilestonesController < Projects::ApplicationController
   protected
   def milestone
-    @milestone ||= @project.milestones.find_by_iid!(params[:id])
+    @milestone ||= @project.milestones.find_by!(iid: params[:id])
   end
   def authorize_admin_milestone!

app/controllers/projects/team_members_controller.rb

@@ -26,7 +26,7 @@ class Projects::TeamMembersController < Projects::ApplicationController
   end
   def update
-    @user_project_relation = project.users_projects.find_by_user_id(member)
+    @user_project_relation = project.users_projects.find_by(user_id: member)
     @user_project_relation.update_attributes(params[:team_member])
     unless @user_project_relation.valid?
@@ -36,7 +36,7 @@ class Projects::TeamMembersController < Projects::ApplicationController
   end
   def destroy
-    @user_project_relation = project.users_projects.find_by_user_id(member)
+    @user_project_relation = project.users_projects.find_by(user_id: member)
     @user_project_relation.destroy
     respond_to do |format|
@@ -46,7 +46,7 @@ class Projects::TeamMembersController < Projects::ApplicationController
   end
   def leave
-    project.users_projects.find_by_user_id(current_user).destroy
+    project.users_projects.find_by(user_id: current_user).destroy
     respond_to do |format|
       format.html { redirect_to :back }
@@ -65,6 +65,6 @@ class Projects::TeamMembersController < Projects::ApplicationController
   protected
   def member
-    @member ||= User.find_by_username(params[:id])
+    @member ||= User.find_by(username: params[:id])
   end
 end

app/controllers/search_controller.rb

 class SearchController < ApplicationController
   def show
-    @project = Project.find_by_id(params[:project_id]) if params[:project_id].present?
-    @group = Group.find_by_id(params[:group_id]) if params[:group_id].present?
+    @project = Project.find_by(id: params[:project_id]) if params[:project_id].present?
+    @group = Group.find_by(id: params[:group_id]) if params[:group_id].present?
     if @project
       return access_denied! unless can?(current_user, :download_code, @project)

app/controllers/snippets_controller.rb

@@ -18,7 +18,7 @@ class SnippetsController < ApplicationController
   end
   def user_index
-    @user = User.find_by_username(params[:username])
+    @user = User.find_by(username: params[:username])
     @snippets = @user.snippets.fresh.non_expired
     if @user == current_user

app/controllers/users_controller.rb

@@ -2,7 +2,7 @@ class UsersController < ApplicationController
   layout 'navless'
   def show
-    @user = User.find_by_username!(params[:username])
+    @user = User.find_by!(username: params[:username])
     @projects = @user.authorized_projects.where(id: current_user.authorized_projects.pluck(:id)).includes(:namespace)
     @events = @user.recent_events.where(project_id: @projects.map(&:id)).limit(20)

app/controllers/users_groups_controller.rb

@@ -30,7 +30,7 @@ class UsersGroupsController < ApplicationController
   protected
   def group
-    @group ||= Group.find_by_path(params[:group_id])
+    @group ||= Group.find_by(path: params[:group_id])
   end
   def authorize_admin_group!

app/helpers/application_helper.rb

@@ -50,7 +50,7 @@ module ApplicationHelper
   end
   def avatar_icon(user_email = '', size = nil)
-    user = User.find_by_email(user_email)
+    user = User.find_by(email: user_email)
     if user && user.avatar.present?
       user.avatar.url
     else

app/mailers/emails/issues.rb

@@ -8,7 +8,7 @@ module Emails
     def reassigned_issue_email(recipient_id, issue_id, previous_assignee_id)
       @issue = Issue.find(issue_id)
-      @previous_assignee = User.find_by_id(previous_assignee_id) if previous_assignee_id
+      @previous_assignee = User.find_by(id: previous_assignee_id) if previous_assignee_id
       @project = @issue.project
       mail(to: recipient(recipient_id), subject: subject("Changed issue ##{@issue.iid}", @issue.title))
     end

app/mailers/emails/merge_requests.rb

@@ -8,7 +8,7 @@ module Emails
     def reassigned_merge_request_email(recipient_id, merge_request_id, previous_assignee_id)
       @merge_request = MergeRequest.find(merge_request_id)
-      @previous_assignee = User.find_by_id(previous_assignee_id) if previous_assignee_id
+      @previous_assignee = User.find_by(id: previous_assignee_id) if previous_assignee_id
       @project = @merge_request.project
       mail(to: recipient(recipient_id), subject: subject("Changed merge request ##{@merge_request.iid}", @merge_request.title))
     end

app/models/note.rb

@@ -123,8 +123,8 @@ class Note < ActiveRecord::Base
   def commit_author
     @commit_author ||=
-      project.users.find_by_email(noteable.author_email) ||
-      project.users.find_by_name(noteable.author_name)
+      project.users.find_by(email: noteable.author_email) ||
+      project.users.find_by(name: noteable.author_name)
   rescue
     nil
   end