I am trying to upload image using carrierwave. Everything seems to be correct, but I am repeatedly getting an error stating:
Can't resolve image into URL: undefined method `to_model' for #<PortfolioUploader:0x007f35a5cad3c0>
Did you mean? to_xml
CarrierWave with Rails 5.2 ActiveStorage may have some issues.
You could try to change your classic image_tag.
Assuming you're using something like this :
<%= image_tag(#user.image) %>
Change it to something like this, using .url
<%= image_tag(#user.image.url) %>
Configuration: Rails 4, HTML, CSS, on Heroku.
I have a Rails 4 app that has been in production for five months. Here's what's in my production.rb:
config.serve_static_assets = false
# Do not fallback to assets pipeline if a precompiled asset is missed.
config.assets.compile = false
# Generate digests for assets URLs.
config.assets.digest = true
config.assets.enabled = true
config.assets.initialize_on_precompile = true
config.action_controller.asset_host = "//dynasfakeurl.cloudfront.net"
Whenever I push to production, I clean my assets using rake assets:clean, then precompile them using rake assets:precompile. This fingerprints my assets, and pushes it directly to my S3 static file bucket, which are served via cloudfront. I then push my app live to Heroku.
On the .html.erb homepage, I call my static files via Rails tags like this:
<%= image_tag "picture.png" %>
<%= stylesheet_link_tag "application" %>
Which render correctly using fingerprints. For example, the second one most recently generated this asset path: http://dynasfakeurl.cloudfront.net/assets/application-17892abdffc77f1fb1be125bab.css
Usually, this works great. However, I've had a problem, twice now, where after 12-16 hours of my last push, all of my asset paths spontaneously lose their fingerprints. For example, the stylesheet tag last generated this asset path: http://dynasfakeurl.cloudfront.net/stylesheets/application.css. Which doesn't exist. Thus, when I load the page, it fails to load the assets.
I've been stuck for the past few hours trying to debug this, but can't figure out why my asset paths would spontaneously, without me pushing anything, lose their fingerprints in production.
When in production mode, rails can't seem to find any precompiled assets from the asset pipeline.
I'm using rails 3.2.0 and ruby 1.9.3 running inside RVM on CentOS. No additional web server is running in conjunction with this application. The application was only recently updated to use the asset pipeline, as it was originally a rails 3.0 app.
After running
rake assets:clean
rake assets:precompile
I see the hashed content in public/assets, as I would expect. The hashes at the end of the files match those I see in the page source.
Yet at runtime, here's what I see for every asset Rails tries to serve:
Started GET "/assets/application-892c6227e631daf9a8e041b1d4d002ec.css" for 75.149.58.169 at 2012-03-14 11:42:43 -0700
ActionController::RoutingError (No route matches [GET] "/assets/application-892c6227e631daf9a8e041b1d4d002ec.css"):
I'm not referring to the folder that each asset is housed in; all references to assets look like these:
//css:
.class {
background: url(asset.png) no-repeat;
}
//erb:
<%= image_tag "asset.png" %>
<%= link_to "page", :class => "class" %>
Asset pipeline pertinent settings in production.rb:
config.serve_static_assets = false
config.assets.enabled = true
config.assets.compress = true
config.assets.debug = false
config.assets.compile = false
config.assets.digest = true
And lastly, asset settings from config/application.rb:
config.assets.enabled = true
config.assets.version = '1.0'
The user starting the rails server process has read, write and execute permissions on public/assets, so I don't think it's a permissions issue. Have I missed a configuration step?
Edit
I noticed that there are no errors stating that assets are not precompiled, so I tried to access a stylesheet from the web page by appending"/assets/application-892c6227e631daf9a8e041b1d4d002ec.css" to the end of the host path:
http://www.myapp.com"/assets/application-892c6227e631daf9a8e041b1d4d002ec.css"
This worked and the stylesheet opened.
Further researching of this issue yielded this SO article:
application.css not being served as an asset
It seems
config.serve_static_assets = false
Is an incorrect setting as long as my Rails application is not running behind Apache or nginx
I had this same problem, but I note that your stylesheet is pointing to the non-fingerprinted, non-cached version of the files. If you are using the asset pipeline, in order to take advantage of it, you need to use the helpers that point to the fingerprinted, cached version of the files. To do this, you'll need to either embed erb in your css file, or use sass.
Incorrect:
.class {
background: url(asset.png) no-repeat;
}
Correct (uses sass):
.class
background: image-url('asset.png') no-repeat
For more info, see here: http://guides.rubyonrails.org/asset_pipeline.html#coding-links-to-assets
If you don't care about the performance issues, you can get away with using the non-cached versions until you upgrade to Rails 4 or Rails 3.2.16, because those versions introduce breaking changes that force you to use the asset pipeline (and its corresponding syntax). If you don't use the new syntax, the non-cached versions will not work at all on production.
Similar to Integrating CKEditor with Rails 3.1 Asset Pipline
I am trying to integrate ckeditor with my rails 3.2 application.
I have all ckeditor files copied under /app/assets/javascripts/ckeditor/*.
I have the following lines in my application.js and application.js is included in my layout file:
//= require jquery
//= require jquery_ujs
//= require ckeditor/ckeditor
//= require_self
Taken it from the answer to Integrating CKEditor with Rails 3.1 Asset Pipline
I can understand that I need to add something like:
config.assets.precompile += your_files
to my development.rb file so that all the ckeditor files are precompiled when the application is loaded.
Although I tried a couple of paths, non worked and I keep getting the following error:
Can someone please tell me the right regular expresion to include all files for precompile, please?
I encountered the same problem and found a solution.Go to the following Link:
http://docs.cksource.com/CKEditor_3.x/Developers_Guide/Specifying_the_Editor_Path
<script type="text/javascript">
var CKEDITOR_BASEPATH = '/assets/ckeditor/';
</script>
<%= javascript_include_tag "application" %>
you don't need to set config.assets.precompile anything.
rails 3.2 fix:
in assets/javascripts/application.js
... blablabla ...
//= require ckeditor_fix #- add this line
//= require ckeditor/init
//= require_tree .
in assets/javascripts create new file ckeditor_fix.js
var CKEDITOR_BASEPATH = '/assets/ckeditor/';
I used this guide to add ckeditor to activeadmin in Rails 3.2 with the asset pipeline enabled:
https://github.com/gregbell/active_admin/wiki/CKEditor-integration
It worked like a charm.
The only additional thing I did was add this line to my environment:
config.assets.precompile += ['active_admin.css', 'active_admin.js', 'ckeditor/init.js']
Note that many of these answers refer to the ckeditor gem ( https://github.com/galetahub/ckeditor/ ), not just the ckeditor project ( http://ckeditor.com ) especially where you see reference to the ckeditor/init.js file.
There are other gems for ckeditor integration, including ckeditor-rails ( https://github.com/tsechingho/ckeditor-rails ) which is a lighter weight, simpler solution.
See also Integrating CKEditor with Rails 3.1 Asset Pipline
Finally an easy working solution.
Download the CKEditor Zip file, extract the files and place them in the sub directory “javascripts/ckeditor”, add the main JS file to the layout..
javascript_include_tag 'ckeditor/ckeditor.js'
..and write a bit JavaScript code which replaces textareas by CKEditor instances:
$(document).ready(function() {
if ($('textarea').length > 0) {
var data = $('textarea');
$.each(data, function(i) {
CKEDITOR.replace(data[i].id);
});
}
});
Credit Source
This is just an addition. I tried all this and it did not work for me so what i did was to change my ckeditor gem to gem 'ckeditor'
And added this to my application.js
//= require ckeditor/init
Then to precompile my assets, i added this to my production.rb file
config.assets.precompile += Ckeditor.assets
and it all worked like magic
STEP 1: Add gem 'paperclip' and gem "ckeditor" in your gemfile.
STEP 2: Bundle Install.
STEP 3: rails generate ckeditor:install --orm=active_record --backend=paperclip
STEP 4: Place config.autoload_paths += %W(#{config.root}/app/models/ckeditor) in application.rb
STEP 5: Place mount Ckeditor::Engine => "/ckeditor" if not present already and run db:migrate
STEP 6: Open application.html.erb and place this <%= javascript_include_tag 'ckeditor/ckeditor.js' %> in header.
STEP 7: Place this in footer(above the body tag) in application.html.erb
<script type="text/javascript">
$(document).ready(function() {
if ($('textarea').length > 0) {
var data = $('textarea');
$.each(data, function(i) {
CKEDITOR.replace(data[i].id);
});
}
});
</script>
STEP 8: Restart the WEBrick SERVER.
That's it.
There are many recent posts on this subject, but none of them (including defining the BASEPATH as suggested above) worked for me, so I thought this might be helpful to some people.
I solved the problem by copying the files from directory with the path
~/.rvm/gems/ruby-1.9.3x/gems/ckeditor-3.7.0.rc3 (the 'x' is app-specific, yours would be different)
to the directory /assets/javascript.
Then I was able to edit the configuration for the toolbar in the config.js file to make the editor have the options I wanted. This works perfectly for me since I always want the same options in this app.
UPDATE
I now have it working with the config.js file in the asset pipeline, where it belongs, but with the reset of the ckeditor code residing in my .rvm gemset. I think there was a conflict because I was trying to redefine their toolbar, named "Easy." When I made a new toolbar & set that one to be active, the pipeline seems to work fine.
ruby-on-rails-3.2 ckeditor
I had a similar while trying to combine multiple stylesheets and javascripts into one in a Rails 3.1 application without asset pipeline, using the stylesheet_link_tag and javascript_include_tag with the cache option. In this case the files are not always loaded in the correct order, and the paths to other ckeditor files like the configuration file "config.js" and language files like "lang/en.js" are not well defined. This means you will get other additional "NetworkError: 404 Not Found" errors while retrieving them, and the configuration and language files are not available, which causes futher fatal errors like the one mentioned above, Uncaught TypeError: Cannot read property 'options' of undefined.
Using a Javascript timeout did not help, and setting the CKEDITOR_BASEPATH did not help, either, at least if you define it in the application.js just before the editor is loaded as I did (maybe the order matters here?). To make it work it is possible to extract the ckeditor javascript from the common cached file (or take it out of the asset pipeline) and load it seperately after the rest of the files with
<%= javascript_include_tag 'ckeditor/ckeditor.js' %>
I fought with this issue for some hours, but the problem was not with CKEditor, but with my code. I included the ckeditor.js script inside my partial view which was rendered via AJAX and yes, you guessed it, wasn't working. Once I moved the script including inside the master layout (_Layout), the issue was solved. Of course, this happened to me while working in ASP.NET MVC. For other web frameworks, I have no solution.
The issue of ckeditor with rails 3.2 is javascript library path not loading for production environment so we need to modify path correctly.
I did following steps :
In application.html.erb
<%= javascript_include_tag "application" , '/assets/ckeditor/ckeditor.js', '/assets/ckeditor/init.js'%>
In production.rb file
config.assets.precompile += %w(ckeditor/init.js)
run assets
rake assets:precompile:all
These steps worked for me with rails version 3.2.8
Have similar issue. For me it was fixed by overriding default precompile task (I used Rails 4 and CkEditor 4).
Add to application.rb config.assets.precompile += ['ckeditor/*']
In application.js //= require ckeditor/init
Create file lib/tasks/precompile_hook and paste text from this answer Precompile hook
In my rails (v2.3.8) app I have a static resource file which I've put at /public/myfile.kml No need for any special routes.rb setting right?
It serves up just fine at http://localhost:3000/myfile.kml
When I deploy (to passenger) it appears at http://myserver/myappname/myfile.kml
All is well so far...
I have a view (an erb file) which spews out javascript which needs to reference this file. The output needs to be '/myfile.kml' on localhost, and '/myappname/myfile.kml' in production, or maybe the full URLs as above, or maybe a relative url involving a bit of '../../../' (awkward with RESTful URLs).
Should I be able to do something like <%=url_for 'myfile.kml'%> ?
or '<%=ROOT_URL%>/myfile.kml'
I know there's an insanely easy answer to this question, but honestly I've had no luck finding it. Quite a few people talking about 'root_url' but what is that? A variable I can reference in a view? It's undefined.
I'm not sure about Rails 2.3.8, but in Rails 3 this value defaults to false.
edit config/environments/production.rb and set:
config.serve_static_assets = true
Also, here's a blog post that shows a helper for linking to a static resource (favicon)
http://ilconnettivo.wordpress.com/2008/07/28/favicon-on-rails/
'<%= ENV["RAILS_RELATIVE_URL_ROOT"] %>/myfile.kml'
<%= RAILS_ROOT + "/public/myfile.kml" %>
Inspection of rake routes reveals the helper root_path for use in views. For example <%= root_path + 'myfile.kml' %> By default will map to files under public/ in a rails application.
The latest (>2.3.6) is Rails.root, see:
http://joneslee85.wordpress.com/2010/05/27/the-dilemma-of-rails-root-vs-rails_root-complex/
Why not just replicate your production environment locally? A webserver is not very resource hungry and it can help resolve some ecosystem configuration issues like you're seeing here.