try ruby

class PostsController < ApplicationController

before_action :set_post, only: [:show, :edit, :update, :destroy]

# GET /posts

# GET /posts.json

def index

@posts = Post.all

end

# GET /posts/1

# GET /posts/1.json

def show

end

# GET /posts/new

def new

@post = Post.new

end

# GET /posts/1/edit

def edit

end

# POST /posts

# POST /posts.json

def create

@post = Post.new(post_params)

respond_to do |format|

if @post.save

format.html { redirect_to @post, notice: 'Post was successfully created.' }

format.json { render :show, status: :created, location: @post }

else

format.html { render :new }

format.json { render json: @post.errors, status: :unprocessable_entity }

end

end

end

# PATCH/PUT /posts/1

# PATCH/PUT /posts/1.json

def update

respond_to do |format|

if @post.update(post_params)

format.html { redirect_to @post, notice: 'Post was successfully updated.' }

format.json { render :show, status: :ok, location: @post }

else

format.html { render :edit }

format.json { render json: @post.errors, status: :unprocessable_entity }

end

end

end

# DELETE /posts/1

# DELETE /posts/1.json

def destroy

@post.destroy

respond_to do |format|

format.html { redirect_to posts_url, notice: 'Post was successfully destroyed.' }

format.json { head :no_content }

end

end

private

# Use callbacks to share common setup or constraints between actions.

def set_post

@post = Post.find(params[:id])

end

# Only allow a list of trusted parameters through.

def post_params

params.require(:post).permit(:title, :body)

end

end