私はこのセットアップに苦労しており、Carrierwave のドキュメントを読み、まだ髪を引っ張っています。開発モードでもサーバーを起動しようとするとエラーが発生します。
/Users/my-machine/.rvm/gems/ruby-1.9.3-p327/gems/carrierwave-0.7.1/lib/carrierwave/uploader/configuration.rb:73: を「eval」で終了しています: 変換できませんnil を文字列に (TypeError)
これが私のセットアップです。
config/initializers/carrierwave.rb
S3_CONFIG = YAML.load_file(Rails.root.join('config', 'amazon_s3.yml'))[Rails.env]
CarrierWave.configure do |config|
config.storage = :s3
config.s3_access_policy = :public_read
config.s3_access_key_id = S3_CONFIG['access_key_id']
config.s3_secret_access_key = S3_CONFIG['secret_access_key']
config.s3_bucket = S3_CONFIG['bucket']
config.s3_region = 'us-east-1'
end
config/amazon_s3.yml
development:
access_key_id: xxxxxxxxxxxxxxxxxxx
secret_access_key: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
bucket: dev-bucket
test:
access_key_id: xxxxxxxxxxxxxxxxxxx
secret_access_key: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
bucket: test-bucket
production:
access_key_id: xxxxxxxxxxxxxxxxxxx
secret_access_key: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
bucket: prod-bucket
app/uploaders/image_uploader.rb
class ImageUploader < CarrierWave::Uploader::Base
# Choose what kind of storage to use for this uploader:
#storage :file
storage :fog
# Override the directory where uploaded files will be stored.
# This is a sensible default for uploaders that are meant to be mounted:
def store_dir
"uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
# fix for Heroku, unfortunately, it disables caching,
# see: https://github.com/jnicklas/carrierwave/wiki/How-to%3A-Make-Carrierwave-work-on-Heroku
def cache_dir
"#{Rails.root}/tmp/uploads"
end
end