From 2a334c201fe4ba3e821bf46f6bbc7ed4c6938e89 Mon Sep 17 00:00:00 2001
From: junv <wahyd4@gmail.com>
Date: Mon, 14 Sep 2015 20:41:33 +0800
Subject: [PATCH] #7 Add thumbnail to post, system will auto parse the
 thumbnail

---
 app/models/post.rb                                    | 2 ++
 app/models/thumbnail.rb                               | 2 ++
 app/serializers/post_serializer.rb                    | 6 +++++-
 app/workers/process_post_worker.rb                    | 3 +++
 db/migrate/20150914122528_add_post_id_to_thumbnail.rb | 5 +++++
 db/schema.rb                                          | 3 ++-
 6 files changed, 19 insertions(+), 2 deletions(-)
 create mode 100644 db/migrate/20150914122528_add_post_id_to_thumbnail.rb

diff --git a/app/models/post.rb b/app/models/post.rb
index a02aa14..241adc6 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -5,5 +5,7 @@ class Post < ActiveRecord::Base
   has_many :favorites, as: :favoritable
   has_many :share_instances, as: :sharable
 
+  has_one :thumbnail
+
   validates_presence_of :url, :type
 end
diff --git a/app/models/thumbnail.rb b/app/models/thumbnail.rb
index 2f30e3e..c27acf4 100644
--- a/app/models/thumbnail.rb
+++ b/app/models/thumbnail.rb
@@ -3,4 +3,6 @@ class Thumbnail < ActiveRecord::Base
   has_attached_file :file, :path => ":class/:attachment/:id/:basename.:extension"
   validates :file, :attachment_presence => true
   validates_attachment_content_type :file, :content_type => /\Aimage\/.*\Z/
+
+  belongs_to :post
 end
diff --git a/app/serializers/post_serializer.rb b/app/serializers/post_serializer.rb
index 99016d0..0fa58b0 100644
--- a/app/serializers/post_serializer.rb
+++ b/app/serializers/post_serializer.rb
@@ -1,5 +1,9 @@
 class PostSerializer < ActiveModel::Serializer
 
-  attributes :viewed_times, :url, :title, :type, :processed, :good_format, :created_at, :likes_count, :comments_count, :summary
+  attributes :viewed_times, :url, :title, :type, :processed, :good_format, :created_at, :likes_count, :comments_count,
+             :summary, :thumbnail
 
+  def thumbnail
+    object.thumbnail.try(:file).try(:url)
+  end
 end
diff --git a/app/workers/process_post_worker.rb b/app/workers/process_post_worker.rb
index a26737f..ab3aad2 100644
--- a/app/workers/process_post_worker.rb
+++ b/app/workers/process_post_worker.rb
@@ -9,6 +9,9 @@ class ProcessPostWorker
     post.title = page.title
     post.summary = page.description
     post.processed = true
+    if page.images.best.present?
+      post.create_thumbnail file: URI.parse(page.images.best)
+    end
     post.save
   end
 
diff --git a/db/migrate/20150914122528_add_post_id_to_thumbnail.rb b/db/migrate/20150914122528_add_post_id_to_thumbnail.rb
new file mode 100644
index 0000000..51f6da0
--- /dev/null
+++ b/db/migrate/20150914122528_add_post_id_to_thumbnail.rb
@@ -0,0 +1,5 @@
+class AddPostIdToThumbnail < ActiveRecord::Migration
+  def change
+    add_column :thumbnails, :post_id, :integer
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 9be8d15..b52c63e 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150914121114) do
+ActiveRecord::Schema.define(version: 20150914122528) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -141,6 +141,7 @@ ActiveRecord::Schema.define(version: 20150914121114) do
     t.integer  "file_file_size"
     t.datetime "file_updated_at"
     t.text     "file_meta"
+    t.integer  "post_id"
   end
 
   create_table "users", force: :cascade do |t|