I've got a folder of js files that I want to include only when I'm on my dashboard page(or controller).
Can I exclude that folder from my application.js's //= require_tree . file and only include it in my dashboard?
You can have application.js require only some files, rather than the everything-and-the-kitchen-sink approach of require_tree .
For instance, make a directory structure like this:
javascripts/
application.js
special.js
common/
foo.js
bar.js
special/
other.js
Then have application.js only include files in the "common" directory by using
= require_tree ./common
Meanwhile, "special.js" (find a better name, obviously), require everything in "special"
= require_tree ./special
Then you'll have to tell Rails that "special.js" should be pre-compiled by the asset pipeline (if you do use asset precompilation). This is done in config/production.rb, and there's already a commented line there showing to to do it. So just uncomment and edit that line, and you should get:
config.assets.precompile += %w( special.js )
If you don't do this, the precompilation will only look at application.js (the default)
Finally, in the relevant views, you can include the special JS by saying
<%= javascript_include_tag "special" %>
You can just place that at the bottom of the file
You can create another js file - dashboard.js, and include it only for dashboard controller
<% if current_page?(:controller => 'dashboard') %>
<%= javascript_include_tag 'dashboard' %>
<% else %>
<%= javascript_include_tag 'application' %>
<% end %>
In your environments/production.rb just add
config.assets.precompile += %w(dashboard.js)
Related
I have added assets for a controller and wants to include them per request.
The problem is that it does not include that assets without writing .js in controller path
The code on layout page is:
<%= controller_specific_js = "#{params[:controller]}.js" %>
<%= javascript_include_tag controller_specific_js if asset_exist?
(controller_specific_js) %>
Helper method:
def asset_exist?(path)
if Rails.configuration.assets.compile
Rails.application.precompiled_assets.include? path
else
Rails.application.assets_manifest.assets[path].present?
end
end
The assets are in admin/popular_schools that are admin/popular_schools.js.coffee
<%= controller_specific_js = "#{params[:controller]}.js" %>
The above line outputs: admin/popular_schools.js and adds it.
URL is: http://localhost:3000/admin/popular_schools
assets.rb:
Rails.application.config.assets.precompile += %w( admin/popular_schools.js.coffee )
production.rb
config.assets.compile = true
How exactly I can run it without specifying .js in "#{params[:controller]}.js" as conventially its is not good.
If I remove .js it does not insert it in assets but if I include it it starts to appear.
Also if I use below code:
<%= controller_specific_js = "#{params[:controller]}" %>
<%= javascript_include_tag controller_specific_js if asset_exist?(controller_specific_js) %>
It does work without specifying .js but if I do not want to include any controllers in assets.rb file they start to output exception that file is not included in the assets.erb but it does included in assets folder and for some reasons I do not want to include them in assets.rb
Any workaround or conventions?
In my Rails application i've got several layouts and for each I want to load special CSS how can I do this?
at the moment application.css looks like this:
//= require bootstrap.min
//= require filechooser
//= require bootstrap-switch.min
//= require jquery.datetimepicker
//= require fancybox2_1_5/jquery.fancybox
//= require style
*= require_self
*/
If you are using different layouts for different controllers, then you can use your special css or js files directly in your layouts by adding a method to your ApplicationHelper as follow:
def controller_stylesheet_link_tag
if params[:controller] == "foo"
stylesheet_link_tag 'foo'
else
stylesheet_link_tag 'bar'
end
end
Then, add this helper method to your layouts like application.html.erb -
<%= controller_stylesheet_link_tag %>
I like to use a specific JS/CSS for file for each layout (when applicable).
For example, app/layouts/application.html.erb would have your application.css, like this:
<%= stylesheet_link_tag 'application' %>
Whereas app/layouts/admin.html.erb will have admin.css:
<%= stylesheet_link_tag 'admin' %>
Using Sprockets 3 or later, you can even use index files in the directories to keep things organized.
app/assets/stylesheets/admin/index.css will be available as admin.css. See Index Files are proxies for folders for more info.
I can't figure out how make certain .scss files work with certain views. I removed the *= require_tree . from the application.css.scss but I'm not sure where to go from there. The stylesheet_link_tag doesn't seem to recognize .scss files. What tag can I use to import .scss files to views?
I also tried creating a different controller for the different view but after I removed the require_tree the controller doesn't use the .scss file that was automatically generated with it.
In application.css remove *= require_tree.
In application.html add:
<head>
<%= yield :stylesheets %>
</head>
And on every page render:
<% content_for :stylesheets do %>
<%= stylesheet_link_tag "your file" %>
<% end %>
The most important piece you are probably missing is that Sprockets won't serve any asset, mainly the css and js need to be declared in your asset manifest. Quoting the docs:
If you have other manifests or individual stylesheets and JavaScript files to include, you can add them to the precompile array in config/initializers/assets.rb:
Rails.application.config.assets.precompile += ['admin.js', 'admin.css', 'swfObject.js']
Use the expected resulting name (with .css extension) and not the source file (with the .scss extension).
There is a way to organize your assets based on controller.
Rails guide has a section about it.
According to it you can create app/assets/stylesheets/projects.css.scss file for your ProjectsController and include it like this:
<%= stylesheet_link_tag params[:controller] %>
When doing this, ensure you are not using the require_tree directive, as that will result in your assets being included more than once.
Action based stylesheets can be created similarly:
<%= stylesheet_link_tag "#{params[:controller]}/#{params[:action]}" %>
if the scss file is in the root of the asset folder then
add line to your view file
=stylesheet_link_tag 'your_scss_file_name'
in \config\initializers\assets.rb
add this line
Rails.application.config.assets.precompile + =% w (your_scss_file_name.css)
In my new rails project, I add bootstrap css and javascript; but it doesn't work and class aren't add to pages.
I copy files in app/assets/javascripts and app/assets/stylesheets.
I add this file in application.html.erb like below:
<head>
<title>JiraAjax</title>
<%= stylesheet_link_tag 'application' %>
<%= stylesheet_link_tag 'bootstrap.min' %>
<%= javascript_include_tag 'application' %>
<%= javascript_include_tag 'bootstrap.min' %>
<%= csrf_meta_tags %>
</head>
when I run project, I see both of file in html code in browser, but class aren't preview and doesn't work.
Other css is working, but bootstrap doesn't work.
I added pre-compile line for each file in application.rb, but the problem isn't solve.
app/assets/javascripts/application.js:
//= require jquery
//= require jquery_ujs
//= require bootstrap.min
app/assets/stylesheets/application.css:
*= require_self
*= require bootstrap-rtl.min
It's very strange for me, any one can help me?
You have to watch out for the load order of the assets that you're using. Depending on the specific situation, bootstrap should be loaded either before or after other assets.
Another issue I ran into was having either asset twice, which threw me off.
I'd suggest playing around with the order and making sure you don't have duplicate imports :) What I ended up doing was just hardcoding imports into my html.erb files instead of dealing with the asset-pipeline as a temporary workaround.
Ok so compiling my assets is working fine but when I run:
thin start -e production
none of my javascript or css is loading. My browser is also cancelling the requests to get my assets. I'm not sure why this is but I suspect its because it thinks its 404'ing on them. If you look at the top image you'll see that my application.css file was compiled and stored in my assets folder but when I try to access the file, I'm getting my 404.html file.
What gives!?
Edit:
I was asked to post my view. Here is some of the code in the project:
<% content_for :title, 'Quick Quote' %>
<% content_for :subtotal, get_subtotal %>
<% content_for :stylesheet_includes do %>
<%= stylesheet_link_tag "quote", "jquery-ui-timepicker-addon" %>
<% end %>
<% if #quote.errors.any? %>
<div class="flash alert">
<% #quote.errors.full_messages.each do |msg| %>
<div><%= msg %></div>
<% end %>
</div>
<% end %>
<h1>Quick Quote</h1>
my layout:
<!DOCTYPE html>
<html>
<head>
<title><%= (yield(:title) + " - " unless yield(:title).blank?).to_s + "Online Scheduler Order Taker" %></title>
<%= stylesheet_link_tag "application", "jquery-ui-timepicker-addon.css", :media => "all" %>
<%= yield :stylesheet_includes %>
<%= javascript_include_tag "application" %>
<%= yield :javascript_includes %>
<%= csrf_meta_tags %>
</head>
<body>
code in my production.rb
config.assets.precompile += %w( quote.css jquery-ui-timepicker-addon.css prices.css contact.css )
Top of my application.css.scss.erb:
/*
* This is a manifest file that'll be compiled into application.css, which will include all the files
* listed below.
*
* Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets,
* or vendor/assets/stylesheets of plugins, if any, can be referenced here using a relative path.
*
* You're free to add application-wide styles to this file and they'll appear at the top of the
* compiled file, but it's generally better to create a new file per style scope.
*
*= require_self
*
* require_tree . <- commented out
* require jquery-ui-timepicker-addon.css <- commented out
*/
my entire application.js file
// 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 vendor/assets/javascripts of plugins, if any, 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
// the compiled file.
//
// WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT'S TO BE PROCESSED, ANY BLANK LINE SHOULD
// GO AFTER THE REQUIRES BELOW.
//
//= require jquery
//= require jquery_ujs
//= require jquery-ui
//= require jquery-ui-timepicker-addon.js
//= require_tree .
Check your config/environments/production.rb file and add next line to it (if it does not have it yet):
config.serve_static_assets = true
Rails recommends that this setting config.serve_static_assets by default should be disabled i.e. set to false. Here is the default configuration in config/environments/production.rb generated in rails app
Disable Rails's static asset server (Apache or nginx will already do this)
config.serve_static_assets = false
So if you are setting it to true in your local app then that's still fine. But if you are deploying your app on Apache or ngix or anything other than heroku then its not advisable to make config.serve_static_assets=true in your production.rb config file. Here is the documentation in Rails guides.
config.serve_static_files configures Rails itself to serve static
files. Defaults to true, but in the production environment is turned
off as the server software (e.g. NGINX or Apache) used to run the
application should serve static assets instead. Unlike the default
setting set this to true when running (absolutely not recommended!) or
testing your app in production mode using WEBrick. Otherwise you won't
be able use page caching and requests for files that exist regularly
under the public directory will anyway hit your Rails app.
URL - http://guides.rubyonrails.org/configuring.html
Rails 5:
Change config.public_file_server.enabled in production.rb to true or add RAILS_SERVE_STATIC_FILES with any value to env variables.
Reference: https://github.com/rails/rails/pull/18100
Can you put this line in your current environment.rb?
config.serve_static_assets=true
Reference: here