VietTH: Add and use gem meta-tags

Gemfile

@@ -95,3 +95,5 @@ gem 'rubocop', '~> 0.32.1'
 gem 'cartman', '~> 2.1.2'
 
 gem 'font-awesome-rails', '~> 4.3.0.0'
+
+gem 'meta-tags', '~> 2.0.0'
\ No newline at end of file

Gemfile.lock

@@ -155,6 +155,8 @@ GEM
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
+    meta-tags (2.0.0)
+      actionpack (>= 3.0.0)
     method_source (0.8.2)
     mime-types (2.6.1)
     mini_magick (3.8.1)
@@ -343,6 +345,7 @@ DEPENDENCIES
   jquery-rails
   kaminari (~> 0.16.3)
   letter_opener (~> 1.4.1)
+  meta-tags (~> 2.0.0)
   mini_magick (~> 3.8.1)
   mysql2
   pry-rails (~> 0.3.4)

app/controllers/application_controller.rb

 class ApplicationController < ActionController::Base
+  include MetaManagement
+
   rescue_from ActiveRecord::RecordNotFound, :with => :record_not_found
   layout Proc.new { |controller| controller.devise_controller? ? 'devise' : 'application' }
 
@@ -19,4 +21,5 @@ class ApplicationController < ActionController::Base
   def record_not_found
     redirect_to(root_path, alert: "Resource not found")
   end
+
 end
\ No newline at end of file

app/controllers/categories_controller.rb

 class CategoriesController < ApplicationController
   before_action :set_category, only: [:show]
-  before_action :set_meta, only: [:show]
   before_action :add_breadcrumb_home
+  before_action :set_metas, only: [:show]
 
   def show
     @products = @category.products.page(params[:page])
     add_breadcrumb(@category.decorate.title)
   end
 
+  def meta_attributes
+    return if @category.blank?
+
+    @meta_attributes ||= {
+      title: @category.decorate.title,
+      description: @category.decorate.title
+    }
+  end
+
   private
   def set_category
     @category = Category.find(params[:id])
   end
 
-  def set_meta
-    Meta.title = @category.decorate.title
-    Meta.name = @category.decorate.title
-  end
-
 end
\ No newline at end of file

app/controllers/meta_management.rb

+module MetaManagement extend ActiveSupport::Concern
+
+  included do
+    def render(options = nil, extra_options = {}, &block)
+      set_metas
+      super
+    end
+
+    def meta_attributes_default
+      {
+        image: ActionController::Base.helpers.asset_url('logo.png'),
+        title: 'Venshop Zigexn VeNtura',
+        description: 'Venshop',
+        keywords: 'Ventura, Zigexn, venshop',
+        type: 'shop'
+      }
+    end
+
+    def set_metas
+      attributes = meta_attributes_default
+      if self.respond_to?(:meta_attributes) && meta_attributes.present?
+        attributes = attributes.merge(meta_attributes)
+      end
+
+      set_meta_tags(
+        title: attributes[:title],
+        description: attributes[:description],
+        keywords: attributes[:keywords],
+        separator: "—".html_safe,
+        og: {
+          title: attributes[:title],
+          type: attributes[:type],
+          url: Settings.base_url,
+          image: attributes[:image],
+          description: attributes[:description]
+        },
+        twitter: {
+          title: attributes[:title],
+          description: attributes[:description],
+          card: attributes[:type],
+          image: {
+            _: attributes[:image],
+            width: 100,
+            height: 100
+          }
+        }
+      )
+    end
+
+  end
+end
\ No newline at end of file

app/controllers/products_controller.rb

@@ -3,7 +3,6 @@ class ProductsController < ApplicationController
   before_action :set_categories, only: [:new, :create]
   before_action :add_breadcrumb_home
   before_action :authenticate_user!, only: [:new, :create, :add_cart]
-  before_action :set_meta, only: [:show]
 
   def new
     @product = Product.new
@@ -39,6 +38,16 @@ class ProductsController < ApplicationController
     add_breadcrumb('Search result')
   end
 
+  def meta_attributes
+    return if @product.blank?
+
+    @meta_attributes ||= {
+      title: @product.title,
+      image: @product.image_lg_url,
+      description: "#{@product.title} - #{@product.price}"
+    }
+  end
+
   private
   def set_product
     @product = Product.find(params[:id])
@@ -56,13 +65,4 @@ class ProductsController < ApplicationController
     @cart_service ||= CartService.new(current_user, params)
   end
 
-  def set_meta
-    Meta.title = @product.title
-    Meta.name = @product.title
-    Meta.image = @product.image_md_url
-    Meta.image_lg = @product.image_lg_url
-    Meta.description = "#{@product.title} - #{@product.price}"
-    Meta.author = @product.user.email
-  end
-
 end
\ No newline at end of file

app/views/layouts/_meta.html.haml

-%title= Meta.title || 'Venshop Zigexn VeNtura'
-%meta{content: Meta.description, name: "description"}
-
-/ Schema.org markup for Google+
-%meta{content: Meta.name, itemprop: "name"}
-%meta{content: Meta.description, itemprop: "description"}
-%meta{content: Meta.image, itemprop: "image"}
-
-/ Twitter Card data
-%meta{content: Meta.image_lg, name: "twitter:card"}
-%meta{content: Meta.title, name: "twitter:title"}
-%meta{content: Meta.description, name: "twitter:description"}
-%meta{content: Meta.author, name: "twitter:creator"}
-
-/ Twitter summary card with large image must be at least 280x150px
-%meta{content: Meta.image_lg, name: "twitter:image:src"}
-
-/ Open Graph data
-%meta{content: Meta.title, property: "og:title"}
-%meta{content: "article", property: "og:type"}
-%meta{content: Settings.base_url, property: "og:url"}
-%meta{content: Meta.image, property: "og:image"}
-%meta{content: Meta.description, property: "og:description"}
-%meta{content: Meta.title, property: "og:site_name"}
-%meta{content: ENV['FB_APP_ID'], property: "fb:admins"}
\ No newline at end of file

app/views/layouts/application.html.haml

@@ -4,7 +4,7 @@
   = javascript_include_tag 'application'
   = csrf_meta_tags
 
-  = render 'layouts/meta'
+  = display_meta_tags
 
   %body
     %nav.navbar.navbar-inverse.navbar-fixed-top