class CommentsController < ApplicationController
  before_action :correct_user,   only: :destroy

  def create
    @post =Post.find(params[:post_id])
    @comment =@post.comments.create(params[:comment].permit(:name, :body))
    redirect_to post_path(@post)
  end

  def destroy
    @post = Post.find(params[:post_id])
    @comment= @post.comments.find(params[:id])
    @comment.destroy
    redirect_to post_path(@post)
  end

  private
  def correct_user
    @user= User.find(current_user.id)
    redirect_to(root_url) unless current_user.id == @post.comment.user.id
  end

end

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

class Comment < ApplicationRecord
  belongs_to :post
end

class Post < ApplicationRecord
  belongs_to :user
  has_many :comments, dependent: :destroy

  validates :title, presence: true, length: {minimum: 5}
  validates :body, presence: true
  validates :user, presence: true
  validates :user_id, presence: true
  has_attached_file :image  #, :styles => { :medium => "300x300>", :thumb =>
  "100x100>" }
  validates_attachment_content_type :image, :content_type => /Aimage/.*Z/
end

class User < ApplicationRecord
 has_many :posts

 devise :database_authenticatable, :registerable,
     :recoverable, :rememberable, :trackable, :validatable
end