Rails javascript only works after reload

Question

The problem is exactly what the heading says. The javaScript is in the asset pipeline i.e assets/javascripts/myfile.js.coffee In the application.js I have:

//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require jquery.ui.all
//= requier twitter/bootstrap
//= require jasny-bootstrap
//= require_tree .

This is the coffeescript

$(document).ready ->
  $("#close").click ->
    $(this).parent().parent().slideUp("slow")




  $( "#datepicker" ).datepicker
    dateFormat : "yy-mm-dd"


  player_count = $("#player option").length


  $('#btn-add').click ->
    $('#users option:selected').each ->
      if player_count >= 8
        $('#select-reserve').append("<option      value='"+$(this).val()+"'>"+$(this).text()+"</option>")
        $(this).remove()    
      else
        $('#player').append("<option value='"+$(this).val()+"'>"+$(this).text()+"</option>")
        $(this).remove()
        player_count++


  $('#btn-remove').click ->
    $('#player option:selected').each ->
      $('#users').append("<option value='"+$(this).val()+"'>"+$(this).text()+"</option>")
      $(this).remove()
      player_count--


  $('#btn-remove-reserve').click ->
    $('#select-reserve option:selected').each ->
      $('#users').append("<option value='"+$(this).val()+"'>"+$(this).text()+"</option>")
      $(this).remove()


  $("#submit").click ->
   $("select option").prop("selected", "selected")

I can see in the source code on the browser that the javaScript has been loaded, but it only works after I reload the page.

Solution 1

This was a turbolinks problem. Thanks to @zwippie for leading me in the right direction! The solution was to wrap my coffeescript in this:

ready = ->
// functions

$(document).ready(ready)
$(document).on('page:load', ready)

Solution 2

For turbolinks 5.0 you must use the turbolinks:load event, which is called the first time on page load and every time on a turbolink visit. More info: https://github.com/turbolinks/turbolinks#running-javascript-when-a-page-loads

CoffeeScript code:

$(document).on 'turbolinks:load', ->
  my_func()

JavaScript code:

document.addEventListener("turbolinks:load", function() {
  my_func();
})

Solution 3

I guess this is a turbolinks issue.

Either remove turbolinks from your project or modify your script to something like:

$(function() {
  initPage();
});
$(window).bind('page:change', function() {
  initPage();
});
function initPage() {
  // Page ready code...
}

As mentioned here.

Solution 4

You can install the jquery.turbolinks gem to solve the problem without changing your Javascript.

Solution 5

You can have your jquery.turbolink place at the right position like this

 //= require jquery 
 //= require jquery.turbolinks 
 //= require jquery_ujs 
 //= require bootstrap-sprockets 
 //= require turbolinks

And in the Gemfile you can install the jquery-turbolinks gem

gem 'jquery-turbolinks'

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