Allow users send questions to supplier

app/assets/javascripts/spree/backend/collections/answers.js

@@ -0,0 +1,9 @@
+//= require spree/backend/models/answer
+
+Spree.Collections.Answers = Backbone.Collection.extend({
+  model: Spree.Models.Answer,
+
+  url: function() {
+    return this.parent.url() + '/answers';
+  }
+});

app/assets/javascripts/spree/backend/collections/questions.js

@@ -0,0 +1,5 @@
+//= require spree/backend/models/question
+
+Spree.Collections.Questions = Backbone.Collection.extend({
+  model: Spree.Models.Question
+})

app/assets/javascripts/spree/backend/models/answer.js

@@ -0,0 +1,6 @@
+Spree.Models.Answer = Backbone.Model.extend({
+  paramRoot: 'answer',
+  urlRoot: function() {
+    return Spree.pathFor('api/questions/' + this.get('question_id') + '/answers');
+  }
+});

app/assets/javascripts/spree/backend/models/question.js

@@ -0,0 +1,19 @@
+//=require spree/backend/collections/answers
+
+Spree.Models.Question = Backbone.Model.extend({
+  urlRoot: Spree.pathFor('api/questions'),
+
+  relations: {
+    'answers': Spree.Collections.Answers
+  }
+});
+
+Spree.Models.Question.fetch = function(id, opts) {
+  const options = (opts || {});
+  const model = new Spree.Models.Question({
+    id: id,
+    answers: []
+  });
+  model.fetch(options);
+  return model;
+}

app/assets/javascripts/spree/backend/questions.js

@@ -0,0 +1,15 @@
+//= require spree/backend/models/question
+//= require spree/backend/views/questions/modal-content
+
+Spree.ready(function() {
+  if ($('.question-modal-content').length) {
+    $('.question-modal-content').each(function() {
+      var el = $(this);
+      var model = new Spree.Models.Question.fetch(el.data('question_id'));
+      new Spree.Views.Questions.ModalContent({
+        el: el,
+        model: model
+      });
+    });
+  }
+});

app/assets/javascripts/spree/backend/solidus_marketplace.js

@@ -2,4 +2,6 @@
 // Shipments AJAX API
 
 //= require spree/backend/solidus_marketplace_routes
-//= require spree/backend/suppliers_autocomplete
+//= require spree/backend/suppliers_autocomplete
+//= require spree/backend/solidus_marketplace_namespaces
+//= require spree/backend/questions

app/assets/javascripts/spree/backend/solidus_marketplace_namespaces.js

@@ -0,0 +1,4 @@
+_.extend(window.Spree.Views, {
+  Questions: {},
+  Answers: {}
+});

app/assets/javascripts/spree/backend/templates/answers/answer-item.hbs

@@ -0,0 +1,4 @@
+<div class='alert alert-secondary'>
+  {{answer.answer_text}}
+  <p class='font-italic'>{{answer.user.email}} - {{answer.created_at}}</p>
+</div>

app/assets/javascripts/spree/backend/templates/answers/new.hbs

@@ -0,0 +1,2 @@
+<input class='answer-input' />
+<button class='btn btn-primary submit'>{{ t 'create' }}</button>

app/assets/javascripts/spree/backend/templates/questions/modal-content.hbs

@@ -0,0 +1,4 @@
+<div class='answers'>
+</div>
+<div class='new-answer'>
+</div>

app/assets/javascripts/spree/backend/views/answers/answer-item.js

@@ -0,0 +1,15 @@
+//= require spree/backend/templates/answers/answer-item
+
+Spree.Views.Answers.AnswerItem = Backbone.View.extend({
+  initialize: function(options) {
+    this.listenTo(this.model, 'change', this.render);
+  },
+
+  template: HandlebarsTemplates['answers/answer-item'],
+
+  render: function() {
+    this.$el.html(this.template({
+      answer: this.model.toJSON()
+    }));
+  }
+});

app/assets/javascripts/spree/backend/views/answers/answer-list.js

@@ -0,0 +1,21 @@
+//= require spree/backend/views/answers/answer-item
+
+Spree.Views.Answers.AnswerList = Backbone.View.extend({
+  initialize: function() {
+    this.listenTo(this.collection, 'add', this.add);
+    this.listenTo(this.collection, 'reset', this.reset);
+  },
+
+  add: function(answer) {
+    var view = new Spree.Views.Answers.AnswerItem({model: answer});
+    view.render();
+    this.$el.append(view.el);
+  },
+
+  reset: function() {
+    const add = this.add;
+    this.collection.each(function(answer) {
+      add(answer)
+    })
+  }
+});

app/assets/javascripts/spree/backend/views/answers/new.js

@@ -0,0 +1,41 @@
+//= require spree/backend/templates/answers/new
+//= require spree/backend/models/answer
+
+Spree.Views.Answers.New = Backbone.View.extend({
+  initialize: function() {
+    this.listenTo(this.collection, 'update', this.render)
+    this.render();
+  },
+
+  template: HandlebarsTemplates['answers/new'],
+
+  events: {
+    'click .submit': 'onSubmit'
+  },
+
+  onSubmit: function(e) {
+    e.preventDefault();
+    const input = $('.answer-input')
+    const options = {
+      success: this.onSuccess.bind(this),
+      error: this.onError.bind(this)
+    };
+    this.collection.create({
+      answer_text: input.val(),
+      question_id: this.collection.parent.id
+    }, options)
+    input.val('');
+  },
+
+  onSuccess: function() {
+    show_flash("success", Spree.translations.created_successfully);
+  },
+
+  onError: function(model, response, options) {
+    show_flash("error", response.responseText);
+  },
+
+  render: function() {
+    this.$el.html(this.template());
+  }
+});

app/assets/javascripts/spree/backend/views/questions/modal-content.js

@@ -0,0 +1,25 @@
+//= require spree/backend/templates/questions/modal-content
+//= require spree/backend/views/answers/new
+//= require spree/backend/views/answers/answer-list
+
+Spree.Views.Questions.ModalContent = Backbone.View.extend({
+  initialize: function(options){
+    this.render();
+  },
+  template: HandlebarsTemplates['questions/modal-content'],
+
+  render: function() {
+    this.$el.html(this.template());
+    const collection = this.model.get('answers');
+
+    new Spree.Views.Answers.AnswerList({
+      el: $('.answers'),
+      parent: this.model,
+      collection: collection
+    });
+    new Spree.Views.Answers.New({
+      el: $('.new-answer'),
+      collection: collection
+    });
+  }
+});

app/controllers/solidus_marketplace/api_controller.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+module SolidusMarketplace
+  class ApiController < ::Spree::Api::ResourceController
+    helper SolidusMarketplace::ApiHelpers
+  end
+end
+

app/helpers/solidus_marketplace/api_helpers.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+module SolidusMarketplace
+  module ApiHelpers
+    include SolidusMarketplace::PermittedAttributes
+  end
+end

app/models/spree/answer.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+module Spree
+  class Answer < Spree::Base
+    belongs_to :question, class_name: 'Spree::Question'
+    belongs_to :user, class_name: Spree::UserClassHandle.new
+  end
+end

app/models/spree/permission_sets/supplier/question_ability.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+require 'cancan'
+
+module Spree
+  module PermissionSets
+    module Supplier
+      class QuestionAbility < PermissionSets::Base
+        def activate!
+          can :manage, Spree::Question, supplier_id: user.supplier_id
+          can :manage, Spree::Answer, question_id: question_ids
+        end
+
+        private
+
+        def question_ids
+          user.supplier.questions.pluck(:id)
+        end
+      end
+    end
+  end
+end

app/models/spree/question.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+module Spree
+  class Question < Spree::Base
+    has_many :answers, dependent: :destroy
+    belongs_to :created_by, class_name: Spree::UserClassHandle.new
+    belongs_to :supplier, class_name: 'Spree::Supplier'
+    belongs_to :product, class_name: 'Spree::Product', optional: true
+  end
+end

app/models/spree/supplier.rb

@@ -21,6 +21,7 @@ class Supplier < Spree::Base
     has_many :stock_locations, dependent: :destroy
     has_many :shipments, through: :stock_locations
     has_many :admins, class_name: Spree.user_class.to_s
+    has_many :questions, class_name: 'Spree::Question'
     accepts_nested_attributes_for :admins
 
     validates :commission_flat_rate, presence: true

config/locales/en.yml

@@ -128,3 +128,6 @@ en:
     user_admin: Admin User
     remove_payment_method: Remove payment method
     add_payment_method: Add payment method
+    questions:
+      title: Questions
+      reply: Reply

config/locales/es.yml

@@ -125,3 +125,6 @@ es:
     user_admin: Usuario administrador
     remove_payment_method: Remover método de pago
     add_payment_method: Agregar método de pago
+    questions:
+      title: Preguntas
+      reply: Contestar

config/routes.rb

@@ -17,9 +17,14 @@
         put :addcard
       end
     end
+
+    resources :questions, only: %i[index]
   end
 
-  namespace :api do
+  namespace :api, defaults: { format: :json } do
     resources :suppliers, only: :index
+    resources :questions do
+      resources :answers
+    end
   end
 end

db/migrate/20200925013627_create_questions.rb

@@ -0,0 +1,13 @@
+class CreateQuestions < ActiveRecord::Migration[5.2]
+  def change
+    create_table :spree_questions do |t|
+      t.text :question_text
+      t.integer :created_by_id
+      t.integer :supplier_id
+      t.integer :product_id
+      t.boolean :published, default: false
+      t.boolean :resolved, default: false
+      t.timestamps
+    end
+  end
+end

db/migrate/20200925013705_create_answers.rb

@@ -0,0 +1,10 @@
+class CreateAnswers < ActiveRecord::Migration[5.2]
+  def change
+    create_table :spree_answers do |t|
+      t.text :answer_text
+      t.integer :question_id
+      t.integer :user_id
+      t.timestamps
+    end
+  end
+end

lib/controllers/api/spree/api/answers_controller.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Spree
+  module Api
+    class AnswersController < ::SolidusMarketplace::ApiController
+      before_action :normalize_params, only: %i[create]
+
+      private
+
+      def permitted_answer_attributes
+        permitted_attributes.answer_attributes
+      end
+
+      def normalize_params
+        params[:answer][:user_id] = current_api_user.id
+      end
+    end
+  end
+end

lib/controllers/api/spree/api/questions_controller.rb

@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+module Spree
+  module Api
+    class QuestionsController < ::SolidusMarketplace::ApiController
+      private
+
+      def permitted_question_attributes
+        permitted_attributes.question_attributes
+      end
+    end
+  end
+end

lib/controllers/backend/spree/admin/questions_controller.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+module Spree
+  module Admin
+    class QuestionsController < BaseController
+      def index
+        params[:q] ||= {}
+        @search = Spree::Question.accessible_by(current_ability, :index)
+          .ransack(params[:q])
+        @questions = @search.result
+          .page(params[:page])
+          .per(params[:per_page] || Spree::Config[:orders_per_page])
+      end
+    end
+  end
+end