Creates a new Article#show endpoint

Articles API gets a new #show endpoint to query for single articles.

ANZPL-43

app/controllers/goldencobra/api/v2/articles_controller.rb

@@ -5,6 +5,7 @@ module Api
     module V2
       class ArticlesController < ActionController::Base
         skip_before_filter :verify_authenticity_token
+        before_filter :get_article, only: [:show]
 
         respond_to :json
 
@@ -53,6 +54,26 @@ def index
           end
         end
 
+        # /api/v2/articles/:url[.json]
+        # 
+        # @param methods [String] "beliebe Attribute des Artikels im JSON einfuegen"
+        # 
+        # @return [json] Liefert Artikel mit einer bestimmten URL
+        #                Im JSON Response befinden sich entweder alle Attribute, oder nur die mit 
+        #                params[:methods] definierten
+        def show
+          respond_to do |format|
+            format.json { 
+              if params[:methods].present?
+                render json: @article, 
+                       serializer: Goldencobra::ArticleCustomSerializer,
+                       scope: params[:methods]
+              else
+                render json: @article
+              end
+            }
+          end
+        end
 
         # /api/v2/articles/create[.json]
         # ---------------------------------------------------------------------------------------
@@ -89,7 +110,6 @@ def create
           else
             render status: 500, json: { :status => 500, :error => response.errors, :id => nil }
           end
-
         end
 
 
@@ -222,10 +242,18 @@ def update_article(article_param)
 
           # Try to save the article
           return article
-
         end
 
+        private
+
+        def get_article
+          url = params[:url].present? ? "/#{params[:url]}" : "/" 
 
+          @article = Goldencobra::Article.where(url_path: url).first
+          unless @article
+            raise "Article not found with url: #{url}"
+          end
+        end
       end
     end
   end

app/serializers/goldencobra/article_custom_serializer.rb

@@ -0,0 +1,38 @@
+module Goldencobra
+  class ArticleCustomSerializer < ActiveModel::Serializer
+    # root "article" # would otherwise be "article_custom"
+    root false
+
+    # Includes all defined methods
+    def attributes
+      data = super
+      if scope
+        scope.split(",").each do |field|
+          data[field.to_sym] = object.send(field.to_sym)
+        end
+      end
+      data
+    end
+
+    has_many :metatags
+    has_many :images
+    has_many :widgets
+    has_many :children
+
+    def metatags
+      object.metatags.select([:id, :name, :value])
+    end
+
+    def images
+      object.images.pluck(:id)
+    end
+
+    def widgets
+      object.widgets.pluck(:id)
+    end
+
+    def children
+      object.children.active.pluck(:id)
+    end
+  end
+end

app/serializers/goldencobra/article_serializer.rb

@@ -0,0 +1,28 @@
+module Goldencobra
+  class ArticleSerializer < ActiveModel::Serializer
+    root false
+    attributes(*Goldencobra::Article.attribute_names.map(&:to_sym))
+
+    has_many :metatags
+    has_many :images
+    has_many :widgets
+    has_many :children
+
+    def metatags
+      object.metatags.select([:id, :name, :value])
+    end
+
+    def images
+      object.images.pluck(:id)
+    end
+
+    def widgets
+      object.widgets.pluck(:id)
+    end
+
+    def children
+      object.children.active.pluck(:id)
+    end
+
+  end
+end

config/routes.rb

@@ -26,6 +26,7 @@
 
     namespace "v2" do
       get '/articles'                => 'articles#index'
+      get '/articles/*url'           => 'articles#show'
       get '/articles/search'         => 'articles#search'
       get '/locale_string'           => 'locales#get_string'
       get '/setting_string'          => 'settings#get_string'

goldencobra.gemspec

@@ -76,6 +76,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'simple_enum'
   s.add_dependency 'react-rails', '~> 1.0'
   s.add_dependency 'addressable'
+  s.add_dependency 'active_model_serializers'
   # s.add_dependency "wicked_pdf"
   s.add_development_dependency "mysql2"
   s.add_development_dependency 'annotate'

lib/goldencobra/engine.rb

@@ -25,6 +25,7 @@
 require 'geokit'
 require "rack/utf8_sanitizer"
 require 'simple_enum'
+require 'active_model_serializers'
 
 module Goldencobra
   class Engine < ::Rails::Engine