How to debug the processing in the Ruby on Rails model only on the console

Hello Writing today is mainly for beginners. This time, I will introduce a certain debugging method. The debug is'byebug'. It doesn't require a gem like binding.pry, and it's attractive that view doesn't. You can debug just by writing byebug in the processing of the model or controller. However, even if you write it in view, you cannot debug it.

scraping.rb

class Scraping < ApplicationRecord
    def self.get_infomation
        require 'mechanize'
        agent = Mechanize.new
        links = []
        current_page = agent.get("https://talent-dictionary.com/s/jobs/3/20")
        elements = current_page.at('.home_talent_list_wrapper')
        boxs = elements.search('.item')
        roks = boxs.search('.right')
        qqqs = roks.search('a')
        eees = qqqs.search('.title')
        eees.each do |eee|
            links <<  eee.inner_text
        end
        links.each do |link|
            get_personal_infomation('https://talent-dictionary.com/' + link)
        end
    end
    def self.get_personal_infomation(link)
        agent = Mechanize.new
        personal_page = agent.get(link)
        aaas = personal_page.at('.talent_name_wrapper')
        ages = aaas.at('.age').inner_text.delete('age').to_i if aaas.at('.age')
        names = aaas.at('h1').inner_text  if aaas.at('h1')
        image_urls = personal_page.at('.main_image img').get_attribute('src') if personal_page.at('.main_image img')
        infomation = Infomation.where(name: names).first_or_initialize
        infomation.age = ages
        infomation.image_url = image_urls
        byebug 
        infomation.save
    end
end

Then run get_infomation on the console

[23, 32] in /home/ec2-user/environment/filebook/app/models/scraping.rb
   23:         ages = aaas.at('.age').inner_text.delete('age').to_i if aaas.at('.age')
   24:         names = aaas.at('h1').inner_text  if aaas.at('h1')
   25:         image_urls = personal_page.at('.main_image img').get_attribute('src') if personal_page.at('.main_image img')
   26:         infomation = Infomation.where(name: names).first_or_initialize
   27:         infomation.age = ages
   28:         infomation.image_url = image_urls
   29:         byebug 
=> 30:         infomation.save
   31:     end
   32: end
(byebug) 

In this way, you can stop the process in the model. You can do it by writing a method in this (byebug).

(byebug) infomation
#<Infomation id: 14, age: 22, name: "Hirose Suzu", image_url: "https://images.talent-dictionary.com/uploads/image...", created_at: "2020-11-01 07:14:44", updated_at: "2020-11-01 07:14:44">

You can take out the contents. Next, if you do it with infomation.name

(byebug) infomation.name
"Hirose Suzu"

If you make it personal_page

personal_page
#<Mechanize::Page
 {url
  #<URI::HTTPS https://talent-dictionary.com/%E5%BA%83%E7%80%AC%E3%81%99%E3%81%9A>}
 {meta_refresh}
 {title "From the birth of Hirose Tin to the present-Talent dictionary"}
 {iframes
  #<Mechanize::Page::Frame
   nil
   "//www.googletagmanager.com/ns.html?id=GTM-P49Z2S">
  #<Mechanize::Page::Frame nil "https://www.youtube.com/embed/hY0oCSd6G78">}
 {frames}
 {links
  #<Mechanize::Page::Link "Talent dictionary" "https://talent-dictionary.com/">
  #<Mechanize::Page::Link "Talent dictionary" "https://talent-dictionary.com/">
  #<Mechanize::Page::Link
   "Hirose Suzu"
   "https://talent-dictionary.com/%E5%BA%83%E7%80%AC%E3%81%99%E3%81%9A">
  #<Mechanize::Page::Link
   ""
   "https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Ftalent-dictionary.com%2F%25E5%25BA%2583%25E7%2580%25AC%25E3%2581%2599%25E3%2581%259A">
  #<Mechanize::Page::Link
   ""
   "https://twitter.com/share?url=h
The rest is omitted

You can extract all the information in the view.

You can do the same with the controller

infomation_controller.rb

def show
        @infomation = Infomation.find(params[:id])
          byebug 
        @comments = @infomation.comments
        @favorite = @infomation.favorites
end

And when you start the server

[3, 12] in /home/ec2-user/environment/filebook/app/controllers/infomations_controller.rb
    3:         @infomations = Infomation.all
    4:         @infomations_rankings = Infomation.find(Favorite.group(:infomation_id).order('count(infomation_id) desc').limit(3).pluck(:infomation_id))
    5:     end
    6:     def show
    7:         @infomation = Infomation.find(params[:id])
    8:           byebug 
=>  9:         @comments = @infomation.comments
   10:         @favorite = @infomation.favorites
   11:     end
   12: end
(byebug)

If you start @infomation in this state

(byebug) @infomation
#<Infomation id: 1, age: 21, name: "Kanna Hashimoto", image_url: "https://images.talent-dictionary.com/uploads/image...", created_at: nil, updated_at: nil>

And you can get the information.