#1 Add validation when create post and add api to increase post view count

app/controllers/api/v1/posts_controller.rb

@@ -1,8 +1,7 @@
-class Api::V1::PostsController < ApplicationController
+class Api::V1::PostsController < Api::V1::ApplicationController
 
-  skip_before_action :verify_authenticity_token
-  before_action :authenticate_user_from_token
-  before_action :permit_params, only: [:create]
+  before_action :permit_params,:get_post,  only: [:create]
+  before_action :load_post, only: [:add_viewed_times]
 
   after_action :process_post, only: :create
 
@@ -12,9 +11,8 @@ class Api::V1::PostsController < ApplicationController
   }
 
   def create
-    @post = get_post
     if @current_user.share_instances.where(sharable: @post).empty?
-      share_instance = @current_user.share_instances.create sharable: @post, description: params[:description]
+      share_instance = @current_user.share_instances.create! sharable: @post, description: params[:description]
       render json: share_instance.to_json(include: :sharable)
     else
       render json: {message: '请勿重复分享同一资源'}, status: 409
@@ -28,6 +26,11 @@ class Api::V1::PostsController < ApplicationController
     render json: @current_user.share_instances.page(params[:page]), each_serializer: ShareInstanceSerializer
   end
 
+  def add_viewed_times
+    @target_post.increment!(:viewed_times)
+    render nothing: true
+  end
+
   private
 
   def permit_params
@@ -35,13 +38,17 @@ class Api::V1::PostsController < ApplicationController
   end
 
   def get_post
-    Post.find_or_create_by!(url: params[:url], type: params[:type])
+    begin
+      @post = Post.find_or_create_by!(url: params[:url], type: params[:type])
+    rescue ActiveRecord::RecordInvalid
+      return render json: {msg: '缺少参数，校验失败'}, status: 400
+    end
+
   end
 
   def process_post
     unless @post.processed
       ProcessPostWorker.perform_async @post.url
     end
-
   end
 end

app/models/post.rb

@@ -4,4 +4,6 @@ class Post < ActiveRecord::Base
   has_many :likes, as: :likable
   has_many :favorites, as: :favoritable
   has_many :share_instances, as: :sharable
+
+  validates_presence_of :url, :type
 end

config/routes.rb

@@ -78,6 +78,7 @@ Rails.application.routes.draw do
       resources :posts, only: [:create, :index, :show] do
         post :like, to: 'likes#like'
         post :unlike, to: 'likes#unlike'
+        post :view, to: 'posts#add_viewed_times'
 
         resources :comments, only: [:create, :show, :index, :destroy] do
           post :like, to: 'likes#comment_like'