DayHabit model and APIs

backend/app/controllers/api/v1/day_habits_controller.rb

@@ -0,0 +1,18 @@
+class Api::V1::DayHabitsController < Api::BaseController
+  def index
+    render json: DayHabit.all
+  end
+
+  def show
+    day_habit = DayHabit.find(day_habit_id)
+    render json: day_habit
+  end
+
+  private
+
+  def day_habit_id
+    id = params.require(:id)
+    fail ActionController::BadRequest.new('id param is not a valid day_habit id') unless DayHabit.all_ids.include?(id)
+    id
+  end
+end

backend/app/models/day_habit.rb

@@ -0,0 +1,7 @@
+class DayHabit < RankedEnum
+  class << self
+    def all_ids
+      %w( lying_down sitting_down on_feet driving working_with_hands )
+    end
+  end
+end

backend/app/serializers/day_habit_serializer.rb

@@ -0,0 +1,12 @@
+class DayHabitSerializer < RankedEnumSerializer
+  attributes :description
+
+  def name
+    I18n.t "#{key}.#{object.id}.name"
+  end
+
+  def description
+    I18n.t "#{key}.#{object.id}.description"
+  end
+
+end

backend/app/serializers/ranked_enum_serializer.rb

@@ -2,6 +2,12 @@ class RankedEnumSerializer < ApplicationSerializer
   attributes :id, :name, :rank
 
   def name
-    I18n.t "#{object.class.name.underscore}.#{object.id}"
+    I18n.t "#{key}.#{object.id}"
+  end
+
+  protected
+
+  def key
+    object.class.name.underscore
   end
 end

backend/config/locales/en.yml

@@ -1,5 +1,22 @@
 en:
 
+  day_habit:
+    lying_down:
+      name: "Lying down"
+      description: "bedridden"
+    sitting_down:
+      name: "Sitting down or at a computer"
+      description: "e.g. student, programmer, architect"
+    on_feet:
+      name: "On your feet"
+      description: "e.g. physician, retail salesperson, tour guide"
+    driving:
+      name: "Driving around"
+      description: "e.g. pharmaceutical representative, taxi driver, truck driver"
+    working_with_hands:
+      name: "Working with your hands"
+      description: "e.g. farmer, fishery worker, landscaper"
+
   education_level:
     less_than_hi_school: "Less than high school"
     hi_school: "High school diploma"

backend/config/routes.rb

@@ -29,6 +29,11 @@
       #
       resources :conditions, only: [:index, :show, :create]
 
+      #
+      # Day Habits
+      #
+      resources :day_habits, only: [:index, :show]
+
       #
       # Education Levels
       #

backend/spec/controllers/api/v1/day_habits_controller_spec.rb

@@ -0,0 +1,46 @@
+require 'rails_helper'
+
+RSpec.describe Api::V1::DayHabitsController do
+  let(:test_day_habit_id) { 'lying_down' }
+  let(:test_day_habit_name_en) { 'Lying down' }
+  let(:test_day_habit_descr_en) { 'bedridden' }
+
+  describe 'index' do
+    let(:all_day_habits_count) { DayHabit.all.count }
+    it 'returns all day_habits' do
+      get :index
+      expect(response_body[:day_habits].size).to eq all_day_habits_count
+    end
+    context "with 'en' locale" do
+      before { I18n.default_locale = 'en' }
+      it "returns 'en' translations" do
+        get :index
+        test_day_habit = response_body[:day_habits].find { |c| c[:id].eql?(test_day_habit_id) }
+        expect(test_day_habit[:name]).to eq test_day_habit_name_en
+        expect(test_day_habit[:description]).to eq test_day_habit_descr_en
+      end
+    end
+  end
+
+  describe 'show' do
+    it 'returns test day_habit' do
+      get :show, id: test_day_habit_id
+      expect(response_body[:day_habit][:id]).to eq test_day_habit_id
+    end
+    context "with 'en' locale" do
+      before { I18n.default_locale = 'en' }
+      it "returns 'en' translation" do
+        get :show, id: test_day_habit_id
+        expect(response_body[:day_habit][:name]).to eq test_day_habit_name_en
+        expect(response_body[:day_habit][:description]).to eq test_day_habit_descr_en
+      end
+    end
+    context 'with invalid day_habit id' do
+      let(:invalid_day_habit_id) { 'blah' }
+      it 'returns 400 (Bad Request)' do
+        get :show, id: invalid_day_habit_id
+        expect(response.status).to eq 400
+      end
+    end
+  end
+end