API v1 article_categories endpoint

app/controllers/api/v1/article_categories_controller.rb

@@ -0,0 +1,26 @@
+class Api::V1::ArticleCategoriesController < Api::V1::BaseController
+  include Concerns::CollectionScope
+
+  def index
+    render json: search_scope
+  end
+
+  def show
+    render json: scope.find(params.require(:id))
+  end
+
+  private
+
+  def max_per_page
+    nil
+  end
+
+  def default_per_page
+    nil
+  end
+
+  def scope
+    ArticleCategory.all
+  end
+
+end

app/models/article_category.rb

@@ -9,13 +9,27 @@ class ArticleCategory < ActiveRecord::Base
   # @!attribute articles
   #   @return [Array<Article>] Articles with this category.
   has_many :articles
+  # @!attribute order_articles
+  #   @return [Array<OrderArticle>] Order articles with this category.
+  has_many :order_articles, through: :articles
+  # @!attribute orders
+  #   @return [Array<Order>] Orders with articles in this category.
+  has_many :orders, through: :order_articles
 
   normalize_attributes :name, :description
 
   validates :name, :presence => true, :uniqueness => true, :length => { :minimum => 2 }
 
   before_destroy :check_for_associated_articles
 
+  def self.ransackable_attributes(auth_object = nil)
+    %w(id name)
+  end
+
+  def self.ransackable_associations(auth_object = nil)
+    %w(articles order_articles orders)
+  end
+
   # Find a category that matches a category name; may return nil.
   # TODO more intelligence like remembering earlier associations (global and/or per-supplier)
   def self.find_match(category)
@@ -40,4 +54,3 @@ def check_for_associated_articles
   end
 
 end
-

app/serializers/article_category_serializer.rb

@@ -0,0 +1,3 @@
+class ArticleCategorySerializer < ActiveModel::Serializer
+  attributes :id, :name
+end

config/routes.rb

@@ -252,6 +252,7 @@
         resources :orders, only: [:index, :show]
         resources :order_articles, only: [:index, :show]
         resources :group_order_articles
+        resources :article_categories, only: [:index, :show]
       end
     end