If ever you'll find yourself having problems with displaying a paperclip attachment stored in a Non-US AWS S3 bucket, please try this solution.
#Gemfile
gem 'paperclip' #3.5.1
gem 'rmagick' #2.13.2
gem 'aws-sdk' #1.18.0
gem 'rails_admin' #0.0.1
So, the trouble was, the image doesn't display on a show and edit page because it kept calling the default endpoint of s3.amazonaws.com.
Solution:
-
Install dot_env gem to isolate all constants and setup related data
-
gem install dot_env -
Create your
.envfile as such, using the suggested AWS constants:AWS_ACCESS_KEY_ID: accesskeyid
AWS_SECRET_ACCESS_KEY: mysecretaccesskey
AWS_DEFAULT_REGION: ap-southeast-2
BUCKET: mybucketname
-
Your default region is the region where you assigned your bucket to. You can find the list of regions here: Regions and Endpoints. Also take note of the endpoint here.
-
Append a config for paperclip inside your environment file (
config/environments/development.rb, etc.) where yours3_host_nameis your endpoint found in the Regions and Endpoints AWS document.config.paperclip_defaults = { :storage => :s3,
:s3_credentials => {
:bucket => ENV['BUCKET'],
:access_key_id => ENV['AWS_ACCESS_KEY_ID'],
:secret_access_key => ENV['AWS_SECRET_ACCESS_KEY']},
:s3_host_name => 's3-ap-southeast-2.amazonaws.com'} -
Modify your
rails_admin.rb. If you have a model that has an image field which is a Paperclip object, you can do this for the display (aside from simply usingthumb_method :style)field(:image) do
pretty_value do
bindings[:view].tag(:img, { :src => bindings[:object].image.url(:style) })
end
end
I spent quite some time experimenting with the correct settings. I hope this saves someone else's time! :)
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