fix(dependency): ensure that project with a groupdate dependency >= 5 can install forest-rails

Gemfile

@@ -26,7 +26,7 @@ gem 'rails', '6.0.3.6'
 gem 'jsonapi-serializers', '1.0.1'
 gem 'rack-cors'
 gem 'arel-helpers', '2.11.0'
-gem 'groupdate', '2.5.2'
+gem 'groupdate', '5.2.2'
 gem 'useragent'
 gem 'jwt'
 gem 'bcrypt'

Gemfile.lock

@@ -4,7 +4,7 @@ PATH
     forest_liana (6.3.2)
       arel-helpers
       bcrypt
-      groupdate (= 2.5.2)
+      groupdate (>= 5.0.0)
       httparty
       ipaddress
       json
@@ -89,8 +89,8 @@ GEM
     erubi (1.10.0)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    groupdate (2.5.2)
-      activesupport (>= 3)
+    groupdate (5.2.2)
+      activesupport (>= 5)
     httparty (0.18.1)
       mime-types (~> 3.0)
       multi_xml (>= 0.5.2)
@@ -235,7 +235,7 @@ DEPENDENCIES
   bcrypt
   byebug
   forest_liana!
-  groupdate (= 2.5.2)
+  groupdate (= 5.2.2)
   httparty (= 0.18.1)
   ipaddress (= 0.8.3)
   json

app/services/forest_liana/line_stat_getter.rb

@@ -3,6 +3,9 @@ class LineStatGetter < StatGetter
     attr_accessor :record
 
     def client_timezone
+      # As stated here https://github.com/ankane/groupdate#for-sqlite
+      # groupdate does not handle timezone for SQLite
+      return nil if 'SQLite' == ActiveRecord::Base.connection.adapter_name
       @params[:timezone]
     end
 
@@ -26,9 +29,10 @@ def perform
         value = FiltersParser.new(@params[:filters], value, @params[:timezone]).apply_filters
       end
 
+      Groupdate.week_start = :monday
+
       value = value.send(time_range, group_by_date_field, {
-        time_zone: client_timezone,
-        week_start: :mon
+        time_zone: client_timezone
       })
 
       value = value.send(@params[:aggregate].downcase, @params[:aggregate_field])

forest_liana.gemspec

@@ -22,7 +22,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency "jwt"
   s.add_runtime_dependency "rack-cors"
   s.add_runtime_dependency "arel-helpers"
-  s.add_runtime_dependency "groupdate", "2.5.2"
+  s.add_runtime_dependency "groupdate", ">= 5.0.0"
   s.add_runtime_dependency "useragent"
   s.add_runtime_dependency "bcrypt"
   s.add_runtime_dependency "httparty"

spec/dummy/app/models/owner.rb

@@ -0,0 +1,2 @@
+class Owner < ActiveRecord::Base
+end

spec/dummy/db/migrate/20210511141752_create_owners.rb

@@ -0,0 +1,8 @@
+class CreateOwners < ActiveRecord::Migration[6.0]
+  def change
+    create_table :owners do |t|
+      t.string :name
+      t.datetime :hired_at
+    end
+  end
+end

spec/dummy/db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_03_26_140855) do
+ActiveRecord::Schema.define(version: 2021_05_11_141752) do
 
   create_table "isle", force: :cascade do |t|
     t.string "name"
@@ -27,6 +27,11 @@
     t.index ["island_id"], name: "index_locations_on_island_id"
   end
 
+  create_table "owners", force: :cascade do |t|
+    t.string "name"
+    t.datetime "hired_at"
+  end
+
   create_table "references", force: :cascade do |t|
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false

spec/services/forest_liana/line_stat_getter_spec.rb

@@ -0,0 +1,50 @@
+module ForestLiana
+  describe LineStatGetter do
+    describe 'Check client_timezone function' do
+      describe 'with a SQLite database' do
+        it 'should return nil' do
+          expect(LineStatGetter.new(Owner, {
+            timezone: "Europe/Paris",
+            aggregate: "Count",
+          }).client_timezone).to eq(nil)
+        end
+      end
+
+      describe 'with a non-SQLite database' do
+        it 'should return the timezone' do
+          ActiveRecord::Base.connection.stub(:adapter_name) { 'NotSQLite' }
+          expect(LineStatGetter.new(Owner, {
+            timezone: "Europe/Paris",
+            aggregate: "Count",
+          }).client_timezone).to eq('Europe/Paris')
+        end
+      end
+    end
+
+    describe 'Check perform function' do
+      describe 'Using a Count aggregation' do
+        describe 'Using a Week time range' do
+          it 'should return consistent data based on monday as week_start ' do
+
+            # Week should start on monday
+            # 08-05-2021 was a Saturday
+            Owner.create(name: 'Michel', hired_at: Date.parse('08-05-2021'));
+            Owner.create(name: 'Robert', hired_at: Date.parse('09-05-2021'));
+            Owner.create(name: 'José', hired_at: Date.parse('10-05-2021'));
+            Owner.create(name: 'Yves', hired_at: Date.parse('11-05-2021'));
+
+            stat = LineStatGetter.new(Owner, {
+              timezone: "Europe/Paris",
+              aggregate: "Count",
+              time_range: "Week",
+              group_by_date_field: "hired_at",
+            }).perform
+
+            expect(stat.value.find { |item| item[:label] == "W18-2021" }[:values][:value]).to eq(2)
+            expect(stat.value.find { |item| item[:label] == "W19-2021" }[:values][:value]).to eq(2)
+          end
+        end
+      end
+    end
+  end
+end