Use same constant for amount of items per page

app/controllers/admin/groups_controller.rb

@@ -5,12 +5,12 @@ class Admin::GroupsController < Admin::ApplicationController
     @groups = Group.all
     @groups = @groups.sort(@sort = params[:sort])
     @groups = @groups.search(params[:name]) if params[:name].present?
-    @groups = @groups.page(params[:page]).per(20)
+    @groups = @groups.page(params[:page]).per(PER_PAGE)
   end
 
   def show
-    @members = @group.members.order("access_level DESC").page(params[:members_page]).per(30)
-    @projects = @group.projects.page(params[:projects_page]).per(30)
+    @members = @group.members.order("access_level DESC").page(params[:members_page]).per(PER_PAGE)
+    @projects = @group.projects.page(params[:projects_page]).per(PER_PAGE)
   end
 
   def new

app/controllers/admin/projects_controller.rb

@@ -11,15 +11,15 @@ class Admin::ProjectsController < Admin::ApplicationController
     @projects = @projects.abandoned if params[:abandoned].present?
     @projects = @projects.search(params[:name]) if params[:name].present?
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.includes(:namespace).order("namespaces.path, projects.name ASC").page(params[:page]).per(20)
+    @projects = @projects.includes(:namespace).order("namespaces.path, projects.name ASC").page(params[:page]).per(PER_PAGE)
   end
 
   def show
     if @group
-      @group_members = @group.members.order("access_level DESC").page(params[:group_members_page]).per(30)
+      @group_members = @group.members.order("access_level DESC").page(params[:group_members_page]).per(PER_PAGE)
     end
 
-    @project_members = @project.project_members.page(params[:project_members_page]).per(30)
+    @project_members = @project.project_members.page(params[:project_members_page]).per(PER_PAGE)
   end
 
   def transfer

app/controllers/application_controller.rb

@@ -4,6 +4,8 @@ class ApplicationController < ActionController::Base
   include Gitlab::CurrentSettings
   include GitlabRoutingHelper
 
+  PER_PAGE = 20
+
   before_filter :authenticate_user_from_token!
   before_filter :authenticate_user!
   before_filter :reject_blocked!

app/controllers/dashboard/groups_controller.rb

 class Dashboard::GroupsController < ApplicationController
   def index
-    @user_groups = current_user.group_members.page(params[:page]).per(20)
+    @user_groups = current_user.group_members.page(params[:page]).per(PER_PAGE)
   end
 
   def leave

app/controllers/dashboard/milestones_controller.rb

@@ -8,7 +8,7 @@ class Dashboard::MilestonesController < ApplicationController
                          else state('active')
                          end
     @dashboard_milestones = Milestones::GroupService.new(project_milestones).execute
-    @dashboard_milestones = Kaminari.paginate_array(@dashboard_milestones).page(params[:page]).per(30)
+    @dashboard_milestones = Kaminari.paginate_array(@dashboard_milestones).page(params[:page]).per(PER_PAGE)
   end
 
   def show

app/controllers/dashboard_controller.rb

@@ -25,13 +25,13 @@ class DashboardController < ApplicationController
 
   def merge_requests
     @merge_requests = get_merge_requests_collection
-    @merge_requests = @merge_requests.page(params[:page]).per(20)
+    @merge_requests = @merge_requests.page(params[:page]).per(PER_PAGE)
     @merge_requests = @merge_requests.preload(:author, :target_project)
   end
 
   def issues
     @issues = get_issues_collection
-    @issues = @issues.page(params[:page]).per(20)
+    @issues = @issues.page(params[:page]).per(PER_PAGE)
     @issues = @issues.preload(:author, :project)
 
     respond_to do |format|

app/controllers/explore/groups_controller.rb

@@ -8,6 +8,6 @@ class Explore::GroupsController < ApplicationController
     @groups = GroupsFinder.new.execute(current_user)
     @groups = @groups.search(params[:search]) if params[:search].present?
     @groups = @groups.sort(@sort = params[:sort])
-    @groups = @groups.page(params[:page]).per(20)
+    @groups = @groups.page(params[:page]).per(PER_PAGE)
   end
 end

app/controllers/explore/projects_controller.rb

@@ -11,17 +11,17 @@ class Explore::ProjectsController < ApplicationController
     @projects = @projects.where(visibility_level: params[:visibility_level]) if params[:visibility_level].present?
     @projects = @projects.search(params[:search]) if params[:search].present?
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.includes(:namespace).page(params[:page]).per(20)
+    @projects = @projects.includes(:namespace).page(params[:page]).per(PER_PAGE)
   end
 
   def trending
     @trending_projects = TrendingProjectsFinder.new.execute(current_user)
-    @trending_projects = @trending_projects.page(params[:page]).per(10)
+    @trending_projects = @trending_projects.page(params[:page]).per(PER_PAGE)
   end
 
   def starred
     @starred_projects = ProjectsFinder.new.execute(current_user)
     @starred_projects = @starred_projects.reorder('star_count DESC')
-    @starred_projects = @starred_projects.page(params[:page]).per(10)
+    @starred_projects = @starred_projects.page(params[:page]).per(PER_PAGE)
   end
 end

app/controllers/groups/milestones_controller.rb

@@ -10,7 +10,7 @@ class Groups::MilestonesController < ApplicationController
                          else state('active')
                          end
     @group_milestones = Milestones::GroupService.new(project_milestones).execute
-    @group_milestones = Kaminari.paginate_array(@group_milestones).page(params[:page]).per(30)
+    @group_milestones = Kaminari.paginate_array(@group_milestones).page(params[:page]).per(PER_PAGE)
   end
 
   def show

app/controllers/groups_controller.rb

@@ -52,13 +52,13 @@ class GroupsController < Groups::ApplicationController
 
   def merge_requests
     @merge_requests = get_merge_requests_collection
-    @merge_requests = @merge_requests.page(params[:page]).per(20)
+    @merge_requests = @merge_requests.page(params[:page]).per(PER_PAGE)
     @merge_requests = @merge_requests.preload(:author, :target_project)
   end
 
   def issues
     @issues = get_issues_collection
-    @issues = @issues.page(params[:page]).per(20)
+    @issues = @issues.page(params[:page]).per(PER_PAGE)
     @issues = @issues.preload(:author, :project)
 
     respond_to do |format|

app/controllers/profiles_controller.rb

@@ -43,7 +43,7 @@ class ProfilesController < ApplicationController
   end
 
   def history
-    @events = current_user.recent_events.page(params[:page]).per(20)
+    @events = current_user.recent_events.page(params[:page]).per(PER_PAGE)
   end
 
   def update_username

app/controllers/projects/branches_controller.rb

@@ -8,7 +8,7 @@ class Projects::BranchesController < Projects::ApplicationController
   def index
     @sort = params[:sort] || 'name'
     @branches = @repository.branches_sorted_by(@sort)
-    @branches = Kaminari.paginate_array(@branches).page(params[:page]).per(30)
+    @branches = Kaminari.paginate_array(@branches).page(params[:page]).per(PER_PAGE)
   end
 
   def recent

app/controllers/projects/issues_controller.rb

@@ -20,7 +20,7 @@ class Projects::IssuesController < Projects::ApplicationController
     terms = params['issue_search']
     @issues = get_issues_collection
     @issues = @issues.full_search(terms) if terms.present?
-    @issues = @issues.page(params[:page]).per(20)
+    @issues = @issues.page(params[:page]).per(PER_PAGE)
 
     respond_to do |format|
       format.html

app/controllers/projects/labels_controller.rb

@@ -7,7 +7,7 @@ class Projects::LabelsController < Projects::ApplicationController
   respond_to :js, :html
 
   def index
-    @labels = @project.labels.page(params[:page]).per(20)
+    @labels = @project.labels.page(params[:page]).per(PER_PAGE)
   end
 
   def new

app/controllers/projects/merge_requests_controller.rb

@@ -18,7 +18,7 @@ class Projects::MergeRequestsController < Projects::ApplicationController
 
   def index
     @merge_requests = get_merge_requests_collection
-    @merge_requests = @merge_requests.page(params[:page]).per(20)
+    @merge_requests = @merge_requests.page(params[:page]).per(PER_PAGE)
   end
 
   def show

app/controllers/projects/milestones_controller.rb

@@ -18,7 +18,7 @@ class Projects::MilestonesController < Projects::ApplicationController
                   end
 
     @milestones = @milestones.includes(:project)
-    @milestones = @milestones.page(params[:page]).per(20)
+    @milestones = @milestones.page(params[:page]).per(PER_PAGE)
   end
 
   def new

app/controllers/projects/tags_controller.rb

@@ -7,7 +7,7 @@ class Projects::TagsController < Projects::ApplicationController
 
   def index
     sorted = VersionSorter.rsort(@repository.tag_names)
-    @tags = Kaminari.paginate_array(sorted).page(params[:page]).per(30)
+    @tags = Kaminari.paginate_array(sorted).page(params[:page]).per(PER_PAGE)
   end
 
   def create

app/controllers/projects/wikis_controller.rb

@@ -7,7 +7,7 @@ class Projects::WikisController < Projects::ApplicationController
   before_filter :load_project_wiki
 
   def pages
-    @wiki_pages = Kaminari.paginate_array(@project_wiki.pages).page(params[:page]).per(30)
+    @wiki_pages = Kaminari.paginate_array(@project_wiki.pages).page(params[:page]).per(PER_PAGE)
   end
 
   def show

app/controllers/snippets_controller.rb

@@ -16,7 +16,7 @@ class SnippetsController < ApplicationController
   layout :determine_layout
 
   def index
-    @snippets = SnippetsFinder.new.execute(current_user, filter: :all).page(params[:page]).per(20)
+    @snippets = SnippetsFinder.new.execute(current_user, filter: :all).page(params[:page]).per(PER_PAGE)
   end
 
   def user_index
@@ -28,7 +28,7 @@ class SnippetsController < ApplicationController
       filter: :by_user,
       user: @user,
       scope: params[:scope] }).
-    page(params[:page]).per(20)
+    page(params[:page]).per(PER_PAGE)
 
     if @user == current_user
       render 'current_user_index'