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Slim down examples

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David Heinemeier Hansson 2017-07-05 16:28:45 +02:00
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## Example
```ruby
class Person < ApplicationRecord
has_file :avatar
class User < ApplicationRecord
has_one_attached :avatar
end
avatar.image.url(expires_in: 5.minutes)
user.avatar.attach io: File.open("~/face.jpg"), filename: "avatar.jpg", content_type: "image/jpg"
user.avatar.exist? # => true
user.avatar.purge
user.avatar.exist? # => false
user.image.url(expires_in: 5.minutes) # => /rails/blobs/<encoded-key>
class AvatarsController < ApplicationController
def create
# @avatar = Avatar.create \
# image: ActiveVault::Blob.save!(file_name: params.require(:name), content_type: request.content_type, data: request.body)
@avatar = Avatar.create! image: Avatar.image.extract_from(request)
end
end
class ProfilesController < ApplicationController
def update
@person.update! avatar: @person.avatar.update!(image: )
Current.user.avatar.attach(params.require(:avatar))
redirect_to Current.user
end
end
```