posts_controller.rb

require_relative "../views/posts_view"

class PostsController
  def initialize
    @view = PostsView.new
  end

  def index
    # Ask the model to retrieve all the records
    posts = Post.all
    # Pass the posts to the view to be displayed
    @view.display(posts)
  end

  def create
    # Ask view to ask for title
    title = @view.ask_for("title?")
    # Ask view to ask for url
    url = @view.ask_for("url?")
    # Ask model to save post
    post = Post.create(title: title, url: url)
  end

  def update
    # Ask the model to retrieve all the records
    posts = Post.all
    # Pass the posts to the view to be displayed
    @view.display(posts)
    # Ask for a post id and transform the string response into an integer
    post_id = @view.ask_for("id?").to_i
    # Ask the model to find the post in the database
    post = Post.find(post_id)
    # Ask the viez to prompt the user for a new title
    new_title = @view.ask_for("new title?")
    # Ask the view to prompt the user for a new url
    new_url = @view.ask_for("new url?")
    # Ask the model to update the record in the database
    post.update(title: new_title, url: new_url)
  end

  def destroy
    # Ask the model to retrieve all the records
    posts = Post.all
    # Pass the posts to the view to be displayed
    @view.display(posts)
    # Ask for a post id and transform the string response into an integer
    post_id = @view.ask_for("id?").to_i
    # Ask the model to find the post in the database
    post = Post.find(post_id)
    # Ask the model to remove this record
    post.destroy
  end

  def upvote
    # Ask the model to retrieve all the records
    posts = Post.all
    # Pass the posts to the view to be displayed
    @view.display(posts)
    # Ask for a post id and transform the string response into an integer
    post_id = @view.ask_for("id?").to_i
    # Ask the model to find the post in the database
    post = Post.find(post_id)
    # Increment the votes by 1
    post.update(votes: post.votes + 1)
  end
end