CRUD simple noticeboard with rails5.1

rails-controller.txt

app/controller/articles_controller.rb

class ArticlesController < ApplicationController
  before_action :set_article, only: [:show, :edit, :update, :destroy]
  
  
  def show
  end
  
  def edit
  end
  
  def update
    @article.assign_attributes(article_params)
    if @article.valid?
      @article.save!
      flash[:success] = "success updated!!"
      redirect_to @article
    else
      render 'edit'
    end
    
  end
  
  
  def destroy
    @article.destroy
    flash[:success] = "success deleted!!"
    redirect_to article_path
  end
  
  def new
    @article = Article.new
  end

  
  def create
    @article = Article.new(article_params)
    @article.save!
    
    flash[:success] = "success created!!"
    redirect_to @article
  end
  
  private
  def set_article
    @article = Article.find([params[:id]])
  end
  
  def article_params
    params.require(:article).permit(:title, :body)
  end

rails-generate.txt

rails g controller articles
rails g model article title:string body:text

rails-model.txt

app/models/article.rb

class Article < ApplicationRecord
end

rails-view-edit.txt

app/views/articles/edit.html.haml

= render 'form'

rails-view-form.txt

app/views/articles/form.html.haml

= bootstrap_form_for(@article) do |f|
  = f.alert_message 'xxx'
  = f.text_field :title, autofocus: true
  = f.text_area :body, rows: 20
  
  = f.button 'publish', name: 'ope[cmd]', value: 'publish', class: 'btn btn-lg btn-default'
  = link_to 'delete', @article, :method => :delete, :data => {:confirm => "do u want to be deleted?"}, class: 'btn btn-danger btn-lg'

rails-view-new.txt

app/views/articles/new.html.haml


= render 'form'

rails-view-show.txt

app/views/articles/show.html.haml

%h1
  = @article.tilte
  
  = @article.body

%div
  published date: #{@article.updated_at}

$div
  = link_to 'modify', edit_article_path(@article), class: 'btn btn-default btn-lg'
  = link_to 'delete', @article, :method => delete, :data => { :confirm => 'do u want to be deleted?'}, class: 'btn btn-danger btn-lg'