[英]Rails 3: Get current user_id to save in different model
I have a user and a article model. 我有一个用户和一个文章模型。 When I save an article I also need to save which user created the article therefore I need his ID. 当我保存文章时,我还需要保存哪个用户创建了文章,因此我需要他的ID。 So I need to know which user created it? 所以我需要知道哪个用户创建了它?
My article.rb 我的文章.rb
class Article < ActiveRecord::Base
belongs_to :user
attr_accessible :title, :description, :user_id
validates_length_of :title, :minimum => 5
end
My articles_controller.rb 我的articles_controller.rb
def create
@article = Article.new(params[:article])
respond_to do |format|
if @article.save
format.html { redirect_to @article, notice: 'Article was successfully created.' }
format.json { render json: @article, status: :created, location: @article }
else
format.html { render action: "new" }
format.json { render json: @article.errors, status: :unprocessable_entity }
end
end
end
My Article _form 我的文章_form
<div class="field">
<%= f.label :title %><br />
<%= f.text_field :title %>
</div>
<div class="field">
<%= f.label :description %><br />
<%= f.text_area :description %>
</div>
So how to i set the user_id in the article model correctly? 那么如何正确设置文章模型中的user_id? I would like the one who has a session! 我想要一个有会话的人! I have a helper_method in the application_controller But i am not sure how to use it. 我在application_controller中有一个helper_method但是我不知道如何使用它。
class ApplicationController < ActionController::Base
protect_from_forgery
helper_method :current_user
private
def current_user
@current_user ||= User.find(session[:user_id]) if session[:user_id]
end
end
Thanks for help! 感谢帮助!
You should do something like this in your controller: 您应该在控制器中执行以下操作:
def create
@article = current_user.articles.build(params[:article])
...
end
OR 要么
def create
@article = Article.new(params[:article].merge(:user_id => current_user.id))
...
end
But i would prefer the first one. 但我更喜欢第一个。
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