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POwrong number of arguments (2 for 1) hartl tutorial chapter 9
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  1. POwrong number of arguments (2 for 1) hartl tutorial chapter 9
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    copied!<p>I clicked on the users tab for my sample_app and I got the error wrong number of arguments (2 for 1).</p> <p>index.html.erb</p> <p>said the error was with the line of code &lt;%= gravatar_for user, size: 52 %></p> <pre><code> &lt;ul class="users"&gt; &lt;% @users.each do |user| %&gt; &lt;li&gt; &lt;%= gravatar_for user, size: 52 %&gt; &lt;%= link_to user.name, user %&gt; &lt;/li&gt; &lt;% end %&gt; </code></pre> <p>users_controller.rb</p> <pre><code>class UsersController &lt; ApplicationController before_action :signed_in_user, only: [:index, :edit, :update] before_action :correct_user, only: [:edit, :update] def index @users = User.all end def show @user = User.find(params[:id]) end def new @user = User.new end def create @user = User.new(user_params) if @user.save sign_in @user flash[:success] = "Welcome to the Sample App!" redirect_to @user else render 'new' end end def edit end def update if @user.update_attributes(user_params) flash[:success] = "Profile updated" redirect_to @user else render 'edit' end end private def user_params params.require(:user).permit(:name, :email, :password, :password_confirmation) end # Before filters def signed_in_user unless signed_in? store_location redirect_to signin_url, notice: "Please sign in." end end def correct_user @user = User.find(params[:id]) redirect_to(root_url) unless current_user?(@user) end end </code></pre> <p>sessions_helper.rb</p> <pre><code>module SessionsHelper def sign_in(user) remember_token = User.new_remember_token cookies.permanent[:remember_token] = remember_token user.update_attribute(:remember_token, User.encrypt(remember_token)) self.current_user = user end def signed_in? !current_user.nil? end def current_user=(user) @current_user = user end def current_user remember_token = User.encrypt(cookies[:remember_token]) @current_user ||= User.find_by(remember_token: remember_token) end def current_user?(user) user == current_user end def sign_out self.current_user = nil cookies.delete(:remember_token) end def redirect_back_or(default) redirect_to(session[:return_to] || default) session.delete(:return_to) end def store_location session[:return_to] = request.url if request.get? end end </code></pre> <p>users_helper.rb</p> <pre><code>module UsersHelper # Returns the Gravatar (http://gravatar.com/) for the given user. def gravatar_for(user) gravatar_id = Digest::MD5::hexdigest(user.email.downcase) gravatar_url = "https://secure.gravatar.com/avatar/#{gravatar_id}" image_tag(gravatar_url, alt: user.name, class: "gravatar") end end </code></pre> <p>I know I must have missed some line of code and or misspelled something somewhere. Anyone know what the problem might be?</p>
 

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