optimize usernames mapping in statistics

app/assets/javascripts/controllers/admin/statistics.coffee

@@ -1,7 +1,7 @@
 'use strict'
 
-Application.Controllers.controller "StatisticsController", ["$scope", "$state", "$rootScope", "Statistics", "es", "Member", '_t'
+Application.Controllers.controller "StatisticsController", ["$scope", "$state", "$rootScope", "Statistics", "es", "Member", '_t', 'membersPromise', 'statisticsPromise'
-, ($scope, $state, $rootScope, Statistics, es, Member, _t) ->
+, ($scope, $state, $rootScope, Statistics, es, Member, _t, membersPromise, statisticsPromise) ->
 
 
 
@@ -21,10 +21,10 @@ Application.Controllers.controller "StatisticsController", ["$scope", "$state",
   $scope.preventRefresh = false
 
   ## statistics structure in elasticSearch
-  $scope.statistics = []
+  $scope.statistics = statisticsPromise
 
   ## fablab users list
-  $scope.members = []
+  $scope.members = membersPromise
 
   ## statistics data recovered from elasticSearch
   $scope.data = null
@@ -241,13 +241,10 @@ Application.Controllers.controller "StatisticsController", ["$scope", "$state",
   # @param id {number} user ID
   ##
   $scope.getUserNameFromId = (id) ->
-    if $scope.members.length == 0
+    name = $scope.members[id]
-      return "ID "+id
+    if name
-    else
+      return name
-      for member in $scope.members
+    else "ID "+id
-        if member.id == id
-          return member.name
-      return "ID "+id
 
 
 
@@ -282,12 +279,6 @@ Application.Controllers.controller "StatisticsController", ["$scope", "$state",
   # Kind of constructor: these actions will be realized first when the controller is loaded
   ##
   initialize = ->
-    Statistics.query (stats) ->
-      $scope.statistics = stats
-
-    Member.query (members) ->
-      $scope.members = members
-
     # workaround for angular-bootstrap::tabs behavior: on tab deletion, another tab will be selected
     # which will cause every tabs to reload, one by one, when the view is closed
     $rootScope.$on '$stateChangeStart', (event, toState, toParams, fromState, fromParams) ->

app/assets/javascripts/router.coffee.erb

@@ -808,6 +808,12 @@ angular.module('application.router', ['ui.router']).
             templateUrl: '<%= asset_path "admin/statistics/index.html" %>'
             controller: 'StatisticsController'
         resolve:
+          membersPromise: ['Member', (Member) ->
+            Member.mapping().$promise
+          ]
+          statisticsPromise: ['Statistics', (Statistics)->
+            Statistics.query().$promise
+          ]
           translations: [ 'Translations', (Translations) ->
             Translations.query('app.admin.statistics').$promise
           ]

app/assets/javascripts/services/member.coffee

@@ -22,4 +22,7 @@ Application.Services.factory 'Member', ["$resource", ($resource)->
       url: '/api/members/search/:query'
       params: {query: "@query"}
       isArray: true
+    mapping:
+      method: 'GET'
+      url: '/api/members/mapping'
 ]

app/controllers/api/members_controller.rb

@@ -204,6 +204,12 @@ class API::MembersController < API::ApiController
     @members
   end
 
+  def mapping
+    authorize User
+
+    @members = User.includes(:profile)
+  end
+
   private
     def set_member
       @member = User.find(params[:id])

app/policies/user_policy.rb

@@ -13,10 +13,6 @@ class UserPolicy < ApplicationPolicy
     user.is_admin? or (record.is_allow_contact and record.is_member?) or (user.id == record.id)
   end
 
-  def create?
-    user.is_admin?
-  end
-
   def update?
     user.is_admin? or (user.id == record.id)
   end
@@ -29,8 +25,9 @@ class UserPolicy < ApplicationPolicy
     user.id == record.id
   end
 
-  def list?
+  %w(list create mapping).each do |action|
-    user.is_admin?
+    define_method "#{action}?" do
+      user.is_admin?
+    end
   end
-
 end

app/views/api/members/mapping.json.jbuilder

@@ -0,0 +1,3 @@
+@members.each do |member|
+  json.set! member.id, member.profile.full_name
+end

config/routes.rb

@@ -42,6 +42,7 @@ Rails.application.routes.draw do
       put ':id/merge', action: 'merge', on: :collection
       post 'list', action: 'list', on: :collection
       get 'search/:query', action: 'search', on: :collection
+      get 'mapping', action: 'mapping', on: :collection
     end
     resources :reservations, only: [:show, :create, :index, :update]
     resources :notifications, only: [:index, :show, :update] do