I have just start using both Ember and Phonegap and I am using the Ruby on Rails Ember-Rails gem as wanted to use Rails to do the asset pre-compilation. I can use rails s to run the Ember app and all works fine. To get into a phonegap app, I am doing a rake assets:precompile command, then copying the fingerprinted css and js files to an assets directory and modifying the index/html file to pick them up as follows:
<!DOCTYPE html>
<html>
<head>
<title>MahimanagerPhoneApp</title>
<link rel="stylesheet" media="all" href="./assets/application-f82ab2dfef6aa5b0589d092d8949fc1e6126d774e74d5a024c1407a7082732f6.css"/>
<script src="./assets/application-0df5442d7ea56c8d2a38022448c2c9b57397f561885306bbdfff8db7962547c3.js"></script>
</head>
<body>
<div id="ember-app"></div>
</body>
</html>
I then copy the index.html and the assets into a phonegap app directory. When I use the phonegap cli to build the app and launch it on on emulator it comes up with "Application Error - The connection to the server was unsuccessful. (file:///android_asset/www/index.html)". I have tried the various solutions in this post :Application Error - The connection to the server was unsuccessful. (file:///android_asset/www/index.html)
but none resolved my problem. When I open the index.html in a browser I get Uncaught UnrecognizedURLError: /home/paul/Documents/testapp/www/index.html which is coming from somewhere within the ember.js file but I assume this is only because it was loaded from the file system rather than severed from a host.
I have looked into the phonegap-rails gem too, but it looks like the commands it expects to run in phonegap are from an older version and no longer work.
I am not really sure where to go from here, and maybe its just not a good idea to try and do this from rails?
UPDATE:
I gave up on trying to get this to work. I have instead gone with the ember-cli-cordova option (https://github.com/poetic/ember-cli-cordova). Which had a few minor stumbling blocks that were all easily solved and now I am up and running....
If you change the locationType in your environment.js file to 'hash', rather than 'auto', you will solve this issue.
The issue is that phonegap access your app at a url such as file:///android_assets/www/index.html
ember tries to resolve the index.html as a route when the locationType is set to auto.
Related
For some unknown reason Rails 7 (development environment) doesn't pick up changes in application.js automatically when I hit F5 in the browser. The location application.js is default. I'm using pretty much default setup.
When I run the server, it picks up javascript from some cached version. I need to explicitly rails assets:precompile to make it work.
Importmap looks standard:
# Pin npm packages by running ./bin/importmap
pin "application", preload: true
...
And layout file seems pretty standard as well:
<!DOCTYPE html>
<html>
<head>
<title>Whatever</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" href="<%= image_path('favicon.svg') %>">
<%= csrf_meta_tags %>
<%= csp_meta_tag %>
<%= stylesheet_link_tag "application", "data-turbo-track": "reload" %>
<%= javascript_importmap_tags %>
</head>
...
I tried to set config.importmap.sweep_cache = true in my development.rb (as per importmap docs), but it seems there is no effect.
At this point I'm pretty desperate and can't understand why do I need to rails assets:precompile on my development environment.
Also, I'm not running my app on "localhost" domain, it's on something like dev.server-somewhere.com (so it's accessible from anywhere) with SSH redirects, similar to ngrok. Not sure if it's the cause of a problem.
For clarification: I'm looking for no LIVE refresh feature, just the standard approach with F5 page refresh would work.
I have same problem, simply use: rails assets:clobber to clear all precompiled assets. After that the hot reloading will start working again.
if existing precompiled JS assets exist in public/assets/ rails gives them a priority even in development mode (and even when, for example, esbuild or tsc-watch is otherwise working to transpile your source files into app/assets/buils/, which is unrelated to Sprocket hanging onto its old cache)
Normally, assets are "precompiled" only in production/deployed environments. That means that by default there shouldn't be a folder at public/assets/ while you develop (Sprockets compiles assets on-the-fly for you in development mode).
If you accidentally have run rails assets:precompile in development, you'll have an extra folder here (public/assets/) which does not get checked in to your repository.
But if it does exist, then its existence overrides Sprocket's development mode setting to recompile on every pageload, forcing your browser to load the already compiled (and stale) asset from public/assets/...
(Ironically, running rails assets:precompile or rake assets:precompile, while it does force a one-time recompile and seemingly gives you your latest JS compile, doing this in development is typically what causes the problem of Sprockets getting stuck in the first place)
Next, force Sprockets to both delete the public/assets/ folder and then bust the thumbprint cache using:
rails assets:clobber
(alternatively, run rails assets:clean and then touch tmp/restart.txt)
To debug further, set assets.debug = true in your environment file.
I have faced this issue today and I replaced the sprockets with the propshaft. Then it worked! You might look at the upgrade guide.
I was facing the same issue today and simply reverted back to Sprockets and everything worked out of the box after installing the gem. It seems that Sprockets is now optional in Rails 7. I don't know if Sprockets can be combined with Import Maps, though.
I'm having an unusual problem - I uploaded a favicon into one of my rails applications into the application.html.erb file into the head using this code:
<%= favicon_link_tag 'favicon.ico' %>. This works fine, the favicon shows up, but when I close that application and open a new one into my localhost:3000, the same favicon is showing up, but there's no code in that application for it, in the head nor in the public/favicon file. Any idea how this can be happening?
That's probably because of the cached version on browser for address localhost:3000 i.e. 127.0.0.1:3000. Try changing the port number to something else. For example: localhost:3001 by running this command:
rails s -p 3001
You won't see the same favicon now.
I have setup SASS bundling with Bundle Transformer: Sass and SCSS and it works great locally in debug and release mode, it builds through Azure Build Server, and delivers without any build issues to my Azure Web Site. Problem is that it doesn't appear that the SASS is compiling into CSS. Looking at the source on live site this shows for the CSS:
<link href="/Content/test?v=" rel="stylesheet">
without the hash that you'd expect, and see locally. Looking at the stylesheet there is nothing in it.
Code that I have to make the bundle:
var commonStylesBundle = new CustomStyleBundle("~/Content/css");
commonStylesBundle.Include("~/Content/site.scss");
commonStylesBundle.Orderer = nullOrderer;
commonStylesBundle.Transforms.Add(new CssMinify());
bundles.Add(commonStylesBundle);
You have registered a bundle with the address "~/Content/css", but try to get the bundle with the address "/Content/test".
In addition, is not recommended to use the CssMinify and JsMinify classes together with a Bundle Transformer. I will not explain why it should not do, because I have written about this in the documentation (http://bundletransformer.codeplex.com/documentation). As most simple solution to this problem I recommend to install the BundleTransformer.MicrosoftAjax (http://nuget.org/packages/BundleTransformer.MicrosoftAjax) package.
Without understanding, I mistakenly ran git clean -fd and saw this:
perrys-MacBook-Pro:pc perry_mac$ git clean -fd
Removing log/
Removing public/system/
Removing tmp/
Now, when I run rails s and load http://localhost:3000/ I get:
LoadError at /
cannot load such file -- less (in /Users/perry_mac/rails_projects/pc/app/assets/stylesheets/bootstrap_and_overrides.css.less)
Rails Better Errors shows that the exception happens in line 7
app/views/layouts/application.html.erb
2 <html>
3 <head>
4 <meta name="viewport" content="width=device-width, initial-scale=1.0">
5 <title><%= content_for?(:title) ? yield(:title) : "Some Cases" %></title>
6 <meta name="description" content="<%= content_for?(:description) ? yield(:description) : "Some Radiology Cases" %>">
7 <%= stylesheet_link_tag "application", :media => "all" %>
8 <%= javascript_include_tag "application" %>
9 <%= csrf_meta_tags %>
10 <%= yield(:head) %>
11 </head>
12 <body>
Having now read more on git clean I fear I Have made a terrible mistake. In truth, I don't understand what I may have lost. The output of
Removing log/
Removing public/system/
Removing tmp/
... seems innocuous enough. Am I just one step away from getting my app running again or is it something worse? I understand that whatever git clean -fd removed is unrecoverable.
Here is a pastebin of my gemfile, which I think has all the expected gems.
Here is a pastebin of my .gitignore file.
I am further confused because /config/database.yml is in .gitignore, but the file was not deleted.
Please address your answer towards these two points:
1) Based on the output, is there a simple way to know what files I have lost? What is now gone?
2) Why has my rails app stopped working and what's a good next step to fix it?
ADDENDUM 1:
I ran bundle install
I ran rails g bootstrap:install less
perrys-MacBook-Pro:pc perry_mac$ rails g bootstrap:install less
SECURITY WARNING: No secret option provided to Rack::Session::Cookie.
This poses a security threat. It is strongly recommended that you
provide a secret to prevent exploits that may be possible from crafted
cookies. This will not be supported in future versions of Rack, and
future versions will even invalidate your existing user cookies.
Called from: /Users/perry_mac/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/action_dispatch/middleware/session/abstract_store.rb:28:in `initialize'.
insert app/assets/javascripts/application.js
create app/assets/stylesheets/application.css
identical app/assets/javascripts/bootstrap.js.coffee
conflict app/assets/stylesheets/bootstrap_and_overrides.css.less
Overwrite /Users/perry_mac/rails_projects/pc/app/assets/stylesheets/bootstrap_and_overrides.css.less? (enter "h" for help) [Ynaqdh] Y
force app/assets/stylesheets/bootstrap_and_overrides.css.less
create config/locales/en.bootstrap.yml
gsub app/assets/stylesheets/application.css
gsub app/assets/stylesheets/application.css
Now I see this error:
/Users/perry_mac/rails_projects/pc/app/assets/stylesheets/application.css.scss has already been required
I think this may be because:
app/assetts/stylesheets/application.css
app/assetts/stylesheets/application.css.scss
both contain:
*= require_self
*= require_tree .
Can you suggest the best way to resolve this cyclical require?
If I delete the contents of app/assetts/stylesheets/application.css and save the empty file, my application loads and runs, but there is no styling applied.
Removing log/ and tmp/ isn't that problematic, however, public/system can be problematic. Most upload gems put their uploaded files there.
no, unless you have a list what was in there before.
did you try bundle install? Maybe bundle clean before as well. Depending on what gem you used to get twitter bootstrap working, follow the install steps again. From that error message, you are at least missing the bootstrap stylesheet files. If you reinstall the relevant gems, it should work again.
Edit concerning your addition:
It seems like the less installer created a application.css, while you already had a application.css.scss. You should be fine by just deleting application.css (check the content before). However, I wonder, are you using scss and less together in a project? That might result in problems in the long run.
Firefox does not find the favicon of my Rails 3.1 app in production mode. Running in development mode, it works.
I browse to the URL localhost:4000/favicon_standing.ico for both modes.
The favicon is located in my public folder of my app. I do not use the asset pipeline for it.
I start the server using rails s -p 4000 -e production and rails s -p 4000, respectively, using WEBrick.
Why does is for in development mode, but not in production mode?
I'd try changing the name of your file to 'favicon.ico' and see if that helps. While its not required, its the default naming convention and if you're using another name, you have to add some html to your head:
<link rel="shortcut icon" href="http://www.my-domain.com/myfavicon.ico" type="image/x-icon" />
Here's what some googling shows:
http://www.make-a-favicon.com/favicon_FAQs.htm#Are_all_favicon_files_named_favicon.ico
there is a helper for this
<head>
...
<%= favicon_link_tag %>
<!-- you can skip the name of file if it is favicon.ico -->
...
</head>
all you need is to place your favicon to assets/images/ folder and recompile assets