ruby on rails - Linking post to authenticated user - How do I use current_user in the controller? (devise) -

i using rails "getting started" blog post exercise, , trying integrate devise authentication , authoring of posts.

when creating article, author should logged-in user.

i getting error when trying create article. know error in articles controller, can't seem figure out how grab current logged-in author kick off creation of article. believe did relationship between author , article.

error: undefined method `articles' nil:nilclass

author model:

class author < applicationrecord   has_many :articles   # include default devise modules. others available are:   # :confirmable, :lockable, :timeoutable , :omniauthable   devise :database_authenticatable, :registerable,      :recoverable, :rememberable, :trackable, :validatable  end 

articles model:

class article < applicationrecord   belongs_to :author   has_many :comments, dependent: :destroy   validates :title, presence: true,    length: { minimum: 5 } end 

articles controller:

class articlescontroller < applicationcontroller   def index     @articles = article.all   end    def show     @article = article.find(params[: id])   end    def new     @article = article.new   end    def edit     @article = article.find(params[: id])   end    def create     @author = @current_author     @article = @author.articles.create(article_params)      if @article.save       redirect_to @article     else       render 'new'     end   end    def update     @article = article.find(params[: id])      if @article.update(article_params)       redirect_to @article     else       render 'edit'     end   end    def destroy     @article = article.find(params[: id])     @article.destroy      redirect_to articles_path   end    private    def article_params     params.require(: article).permit(: title,: text,: author)   end end 

try removing @ @current_author. devise, current_author method returns user session[:user_id] not instance variable.

also, try doing 1 of 3 things....

1. change

   @author.articles.create(atricle_params)

   @author.articles.new(atricle_params)

2. move assignment of author 'new' method so...

    def new   @article = article.new   @article.author = current_user end 

3. add hidden_field form...

    '<%= f.hidden_field :author_id, current_user.id %> 

   '