Ror4 Ajax在页面加载时执行JavaScript

Question

I'm having a problem with the unobtrusive javascript in my application. I put an alert into the js.erb file to help me debug, but it runs whenever I load my page, and does nothing when I click the button. I'm not really sure what I'm doing wrong.

users_controller.rb

class UsersController < ApplicationController

def new
    @user = User.new
end

def create
    @user = User.new(user_params)

    respond_to do |format|
        if @user.save
            format.html { redirect_to :root, notice: 'User was successfully created.' }
            format.js   { render :text => "FINISHED THE AJAX REQUEST" }
        else
            format.html { render action: "new" }
            format.js   {}
        end
    end
end

def edit
    @user = User.find(params[:id])
end

def index
    @user  = User.find(params[:id])
end

private

    def user_params
  params.require(:user).permit(:email)
end

end

create.js.erb

alert("BUTTON CLICKED");
$('.button').text("Thank You!");
$('.button').animate({"background-color":"#088A08"},300);
$('#e_submit').css("box-shadow","0 0 0px rgba(0, 0, 0, 0)");
$('#e_submit').val("");

welcome.html.erb

<%= form_for(User.new, remote: true) do |f| %>
<%= f.text_field :email, class: "e_submit", placeholder:"Enter your email" %>               
<%= f.submit "Subscribe", class: "button" %>
<% end %>

I can't figure out why @user instead of User.new doesn't work, but that's a question for a different day.

Answer 1

Ok I figured it out. This all stemmed from my misunderstanding of javascript and where it goes in a rails 4 application. I put it in app/assets/javascripts/ when I should have put it in app/views/users along with the view HTML files.

When I put it in that directory, it no longer needed any of the ready function stuff. Also, I had to remove format.js {} with just format.js. This is now working. Thanks!