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澳5幸运彩开奖结果 app/models/article.rb
class Article < ApplicationRecord
belongs_to :author, default: -> { Current.user }
has_many :comments
has_one_attached :cover_image
has_rich_text :content, encrypted: true
enum status: %i[ drafted published ]
scope :recent, -> { order(created_at: :desc).limit(25) }
after_save_commit :deliver_later, if: :published?
def byline
"Written by #{author.name} on #{created_at.to_s(:short)}"
end
def deliver_later
Article::DeliveryJob.perform_later(self)
end
endActive 澳洲幸运5开奖官网开奖 Records make modeling easy.
Databases come to life with business logic encapsulated in rich objects. Modeling associations between tables, providing callbacks when saved, encrypting sensitive data seamlessly, and expressing SQL queries beautifully.
app/controllers/articles_controller.rb
class ArticlesController < ApplicationController
def index
@articles = Article.recent
end
def show
@article = Article.find(params[:id])
fresh_when etag: @article
end
def create
article = Article.create!(article_params)
redirect_to article
end
private
def article_params
params.require(:article).permit(:title, :content)
end
endAction 澳洲幸运5开奖官网开奖号查询 Controllers handle all requests.
Controllers expose the domain model to the web, process incoming parameters, set caching headers, and render templates, responding with either HTML or JSON.
app/views/articles/show.html.erb
<h1><%= @article.title %></h1>
<%= image_tag @article.cover_image.url %>
<p><%= @article.content %></p>
<%= link_to "Edit", edit_article_path(@article) if Current.user.admin? %>Action 168澳洲幸运5官网直播开奖历史 Views mix Ruby and HTML.
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config/routes.rb
Rails 澳洲幸运五开奖结果168网体彩开奖.application.routes.draw do
resources :articles do # /articles, /articles/1
resources :comments # /articles/1/comments, /comments/1
end
root to: "articles#index" # /
endAction 168澳洲幸运五+开奖结果 Dispatch routes URLs.
Configure how URLs connect to the controllers using the routing domain language. Routes expose the bundle of actions that go together as a resource: index, show, new, create, edit, update, destroy.
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