Im doing a project from scratch and getting an anoying error that Im dealing without sucess.
Im trying to add a JS file to a page not having sucess.
Those are my files:
#application.html.erb
<!DOCTYPE html>
<html>
<head>
<title>Workspace</title>
<%= stylesheet_link_tag 'application', media: 'all' %>
<%= javascript_include_tag 'application' %>
<%= csrf_meta_tags %>
</head>
<body>
<%= yield %>
</body>
</html>
And my application.js
//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require welcome
//= require_tree .
My welcome.js inside /assets/javascripts:
#/assets/javascripts/welcome.js
$(document).ready(function(){
$('#present').mouseenter(function(){
alert("MouseEnter!"); // This will create an alert box
console.log("MouseEnter!"); // This will log to the JS console on your browser which is a bit nicer to read than alerts, you do not need both, just preference
$(this).fadeIn('fast',1);
});
$('#present').mouseleave(function(){
alert("MouseLeave!"); // This will create an alert box
console.log("MouseLeave!");
$(this).fadeIn('fast',0.5);
});
});
When I run the root page the JS is being shown looking at the inspector. But looks empty (i dont know if this is something usual)
src="/assets/welcome.self-877aef30ae1b040ab8a3aba4e3e309a11d7f2612f44dde450b5c157aa5f95c05.js?body=1"
If I open it using the browser it shows:
(function() {
}).call(this);
Well. Someone know what can I do to make my Javascript works?
Thanks
change your code in your application.html.erb
from:
<%= stylesheet_link_tag 'application', media: 'all' %>
<%= javascript_include_tag 'application' %>
to this:
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
Related
There are two pieces of my application that seem to require that I load my javascript at different points.
Omniauth works when I place <%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' within <head></head>.
Shubox (js library used to upload photos) works when I place <%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' just before </body>.
Each of the two does not work when the javascript is loaded where the other requires. So, if I place the javascript line at the end of the body, omniauth does not work.
I can provide additional information if needed. Thank you in advance.
application.js
require("#rails/ujs").start()
require("turbolinks").start()
require("#rails/activestorage").start()
require("channels")
application.html.erb
<html>
<head>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
</head>
<body data-shubox="<%= Rails.application.credentials.dig(:aws, :secret_access_key) %>">
<% if flash.any? %>
<% flash.each do |key, value| -%>
<section class="flash flash__<%= key %>"><%= value.html_safe %></section>
<% end -%>
<% end %>
<%= yield %>
<%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
</body>
</html>
Because of Turbolinks your application.js needs to be in the head tag, otherwise it is evaluated twice . This can cause a problem with libraries that expect your DOM to be loaded when you initialize them - which I think is your problem with shubox.
So you should put something like this in your application.js (if you are using Turbolinks 5, for earlier version the event is called page:load)
$(document).on('turbolinks:load',() => {
new Shubox('#avatar', { key: "abcde-qwerty-12345" })
}
);
You can always create 2 packs if you need them in different places:
javascript/packs/the_one_with_turbolink.js
javascript/packs/the_one_with_shubox.js
then you can do
javascript_pack_tag :the_one_with_turbolinks
and
javascript_pack_tag :the_one_with_shubox
OK, I'm trying to wrap my head around using Select2, AJAX and Rails to do a multiselect search. I haven't gotten to the search part yet as I'm trying to get the multiselect part to work first.
My Controller:
class GamesController < ApplicationController
respond_to? :html, :JSON
def index
#games = Game.order('name').all
#respond_to #games
end
end
My application.js
//= require rails-ujs
//= require turbolinks
//= require select2
//= require_tree .
$('#mySelect2').select2({
placeholder: "Choose a game",
multiple: true;
ajax: {
url: <%= games_path(format: 'json') %>,
processResults: function (data) {
return {
results: data.items
};
}
}
});
My games/index.html.erb file
Still learning
<select class="#mySelect2"></select>
My application.html.erb
<!DOCTYPE html>
<html>
<head>
<title>Sonar</title>
<%= csrf_meta_tags %>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
<%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
</head>
<body>
<%= javascript_include_tag "application" %>
<%= yield %>
</body>
</html>
Routes.rb
Rails.application.routes.draw do
resources :games, only: [:index]
root to: 'games#index'
end
This presents the drop down box, but isn't populating it with the data from the database or presenting a search box to start typing for autocomplete searching.
If I'm understanding it properly, I should have the JS code in the applciation.js file, which is called from the select statement in the index.html file. The index action in the controller is pulling the data from the database in response to the json request and should then pass the info to the js function.
I do note that I don't have the JS to wait for the page to load before running though, but I tried putting that in the application.js file and it didn't change anything.
*edit - the game table has the ID column, name column and a category ID column.
I have a rails application which I added the bootstrap gem
first I added this two gems
gem 'bootstrap'
gem 'sprockets-rails', :require => 'sprockets/railtie'
which installed this packages
Using bootstrap 4.0.0.alpha3
Using sprockets 3.6.0
After I modified application.scss to
// Custom bootstrap variables must be set or import before bootstrap itself.
#import "bootstrap";
Then I left application.js like this
// This is a manifest file that'll be compiled into application.js, which will include all the files
// listed below.
//
// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
// or any plugin's vendor/assets/javascripts directory can be referenced here using a relative path.
//
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// compiled file.
//
// Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details
// about supported directives.
//
//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require tether
//= require bootstrap-sprockets
//= require_tree .
//= require_self
Lastly my application.html.erb is this
<!DOCTYPE html>
<html>
<head>
<title>Squirm</title>
<%= stylesheet_link_tag "bootstrap" %>
<%= javascript_include_tag "bootstrap" %>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
<%= csrf_meta_tags %>
</head>
<body>
<%= render 'partials/navbar' %>
<div class="container">
<%= yield %>
</div>
</body>
</html>
Bootstrap seems to we working, but in the Google Chrome console seems not to be found
You're loading Bootstrap before you've loaded jQuery. Many of Bootstrap's components require javascript (carousel, tabs, etc.), however, most of Bootstrap will work without, which is why the Bootstrap CSS is showing on your page.
Loading Bootstrap after jQuery will fix the issue:
<!DOCTYPE html>
<html>
<head>
<title>Squirm</title>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
<%= stylesheet_link_tag "bootstrap" %>
<%= javascript_include_tag "bootstrap" %>
<%= csrf_meta_tags %>
</head>
<body>
<%= render 'partials/navbar' %>
<div class="container">
<%= yield %>
</div>
</body>
</html>
Also, not 100% sure based on your code, but you may be loading bootstrap twice. It seems this line: //= require bootstrap-sprockets is already loading Bootstrap.
you need to add jquery as well normally jquery come bundled in rails app, but maybe due to some reasons its not thr in your app
add
jquery from
https://cdnjs.com/libraries/jquery/
and let us knwo if this change works.
I'm using Rails 4. I'm installing formtastic and in the process following the Readme to make changes to the CSS. This is breaking my CSS - my pages are showing but without any formatting at all.
My Application.css file (I removed *= require_tree . per instructions on readme):
*= require_self
# app/assets/stylesheets/application.css
*= require formtastic
*= require my_formtastic_changes
# app/assets/stylesheets/ie6.css
*= require formtastic_ie6
# app/assets/stylesheets/ie7.css
*= require formtastic_ie7
In application.html.erb note I commented out the previous stylesheet and added in a new link:
<!DOCTYPE html>
<html>
<head>
<title><%= full_title(yield(:title)) %></title>
<%# stylesheet_link_tag "application",
"data-turbolinks-track" => true %>
<%= stylesheet_link_tag "application", "formtastic", "my_formtastic_changes" %>
<!--[if IE 6]><%= stylesheet_link_tag 'ie6' %><![endif]-->
<!--[if IE 7]><%= stylesheet_link_tag 'ie7' %><![endif]-->
<%= javascript_include_tag "application", "data-turbolinks-track" => true %>
<%= csrf_meta_tags %>
<%= render 'layouts/shim' %>
</head>
<body>
<%= render 'layouts/header' %>
<div class="container">
<%= yield %>
<%= render 'layouts/footer' %>
</div>
</body>
</html>
I also added the stylesheet my_formtastic_changes.css.scss, an empty file. I experimented with adding/removing the formtastic and my_formtastic_changes references and using single and double quotes with the stylesheet references - no luck there.
I left the require_tree . line out but had to add in
*= custom
So it loaded the custom stylesheet, including the bootstrap CSS.
I'd like to use twitter bootstrap manually, on my rails project.
But I've got this error, and some functions of bootstrap don't work.
If you help me, I appreciate it. Thank you.
Errors on Console
Uncaught TypeError: Cannot read property 'Constructor' of undefined bootstrap-popover.js:38
(anonymous function) bootstrap-popover.js:38
(anonymous function) bootstrap-popover.js:115
app/view/app/index.html.erb
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">
<%= stylesheet_link_tag "bootstrap" %>
<%= stylesheet_link_tag "bootstrap-responsive" %>
<%= javascript_include_tag "jquery" %>
<%= javascript_include_tag "bootstrap" %>
<%= javascript_include_tag "bootstrap-transition" %>
<%= javascript_include_tag "bootstrap-alert" %>
<%= javascript_include_tag "bootstrap-modal" %>
<%= javascript_include_tag "bootstrap-dropdown" %>
<%= javascript_include_tag "bootstrap-scrollspy" %>
<%= javascript_include_tag "bootstrap-tab" %>
<%= javascript_include_tag "bootstrap-tooltip" %>
<%= javascript_include_tag "bootstrap-popover" %>
<%= javascript_include_tag "bootstrap-button" %>
<%= javascript_include_tag "bootstrap-collapse" %>
<%= javascript_include_tag "bootstrap-carousel" %>
<%= javascript_include_tag "bootstrap-typeahead" %>
<!-- as example, which doesn't work, somehow -->
<i class="icon-search icon-home"></i>
I believe everything necessary js and css files are in
./app/assets/images
./app/assets/javascripts
./app/assets/stylesheets
If you would like to add asset files ( like .js , .css or images ) in Rails >3 , you should use manifest files : application.js , application.css . After you copy sources in their directories , you should make declarations like this :
application.js :
//= require jquery
//= require jquery_ujs
//= require bootstrap
//= require bootstrap-responcive
//= require tree .
and in application.css:
*= require_self
*= require bootstrap
*= require_tree .
It makes useless including `<%= javascript_include_tag %> in your views .