Wednesday, March 6, 2019
I just went through a similar problem with displaying an image in a PDF generated from the gem prawn.
On Wednesday, March 6, 2019 at 6:16:28 AM UTC-6, Colin Law wrote:
-- Worked find in development, but not production. prawn knows nothing about the asset pipeline or path helpers. I'm sure that the same is true with trying to get the path from java/coffee/script.
I even included the path helpers ` include ActionView::Helpers::AssetTagHelper` but that didn't work with asset_path or asset_url. It just didn't didn't work. There must be some hidden magic in the asset_path that sets the uuid between the image name and .type.
From the root url you can get an image with server.com/assets/assets/my-logo-b70c4bbdfd69ea9db2785922c48b8ec1f03c5d8b6bf2be843ee570199cd51743.jpg, but you don't know the precompiled name. Even if you did, it would break in development. Prawn or coffee script does not know about environments.
I finally found a solution, not fond of it, but it works. Prawn has an image method that requires a path and options. I just fell back to the path based on rails.root
image(Rails.root.join('app/assets/images/my_logo.jpg'),width:100 )
never tried to serve an image from coffee script and not sure the hack I found would work. You are basically ignoring the asset pipeline
Steve
On Wednesday, March 6, 2019 at 6:16:28 AM UTC-6, Colin Law wrote:
I hope someone can help me with an assets problem. I have had to
rebuild a production server and images are no longer getting served.
Unfortunately the working system is no more so I can't compare what I
have with what used to work in order to help diagnose the problem.
I am using Rails 4.2 with nginx on an Ubuntu 16.04 server with
capistrano to deploy it and I have not changed the application (which
is git controlled). However it is now running on a later version of
Ubuntu so the tools there have been updated, including nginx.
The problem is that image assets are not being served, the javascript
and css are working. I can see (on the server) that the assets have
been precompiled and I can see in public/assets image files such as
blue_pin-<digest>.png where <digest> is a big long number.
However in the browser console I can see it attempt to fetch
/assets/blue_pin.png without the digest, and this fails.
The code in the app that references the image is in coffescript and is a line
@marker_icon_blue = new OpenLayers.Icon('/assets/blue_pin.png', size, offset);
I used to know how all this is supposed to work, but I have been away
from Rails for a while and the brain cells seem to have atrophied
rather, and perusing the docs has failed to re-invigorate them
sufficiently, so if someone could suggest what might be going on I
would be very grateful.
Colin
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/fe2fde0e-452a-4b53-81d4-a328300c8cac%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment