我想获取在博客应用程序中创建文章的用户的用户名或电子邮件(两者都在用户表中)。目前我能够从articles_controller.rb 获取用户ID
def create
@article = Article.new(params[:article])
@article.user_id = current_user.id
@article.save
redirect_to article_path(@article)
end
但不知道如何获取相同的用户名或电子邮件。基本上我想在文章索引页面上显示用户名或电子邮件。请建议我如何完成它
用户.rb
class User < ActiveRecord::Base
has_many :articles
has_many :comments
# Include default devise modules. Others available are:
# :token_authenticatable, :confirmable,
# :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
# Setup accessible (or protected) attributes for your model
attr_accessible :username, :email, :password, :password_confirmation, :remember_me
attr_accessible :title, :body
end
文章.rb
class Article < ActiveRecord::Base
attr_accessible :title, :body
has_many :comments
belongs_to :user
end
文章控制器.rb
class ArticlesController < ApplicationController
def index
@articles = Article.all
end
def show
@article = Article.find(params[:id])
end
def new
@article = Article.new
end
def create
@article = Article.new(params[:article])
@article.user_id = current_user.id
@article.save
redirect_to article_path(@article)
end
def destroy
@article = Article.find(params[:id])
@article.destroy
redirect_to action: 'index'
end
def edit
@article = Article.find(params[:id])
end
def update
@article = Article.find(params[:id])
@article.update_attributes(params[:article])
flash.notice = "Article '#{@article.title}' Updated!"
redirect_to article_path(@article)
end
end
文章/index.html.erb
<div style="color:#666666; margin-top:10px"> <%= article.created_at %></div>
<div style="color:#666666; margin-top:10px"> <%= article.user_id %></div>
文章表
class CreateArticles < ActiveRecord::Migration
def change
create_table :articles do |t|
t.string :title
t.text :body
t.timestamps
end
add_index :articles, [:user_id, :created_at]
end
end
我能够在视图中获取用户 ID,但不知道如何输入用户名或电子邮件。任何帮助,将不胜感激。