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Versions: 7
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Contents
# Representation of a single attachment to a model.
class ActiveStorage::Attached::One < ActiveStorage::Attached
delegate_missing_to :attachment
# Returns the associated attachment record.
#
# You don't have to call this method to access the attachment's methods as
# they are all available at the model level.
def attachment
record.public_send("#{name}_attachment")
end
# Associates a given attachment with the current record, saving it to the database.
# Examples:
#
# person.avatar.attach(params[:avatar]) # ActionDispatch::Http::UploadedFile object
# person.avatar.attach(params[:signed_blob_id]) # Signed reference to blob from direct upload
# person.avatar.attach(io: File.open("~/face.jpg"), filename: "face.jpg", content_type: "image/jpg")
# person.avatar.attach(avatar_blob) # ActiveStorage::Blob object
def attach(attachable)
write_attachment \
ActiveStorage::Attachment.create!(record: record, name: name, blob: create_blob_from(attachable))
end
# Returns true if an attachment has been made.
#
# class User < ActiveRecord::Base
# has_one_attached :avatar
# end
#
# User.new.avatar.attached? # => false
def attached?
attachment.present?
end
# Directly purges the attachment (i.e. destroys the blob and
# attachment and deletes the file on the service).
def purge
if attached?
attachment.purge
write_attachment nil
end
end
# Purges the attachment through the queuing system.
def purge_later
if attached?
attachment.purge_later
end
end
private
def write_attachment(attachment)
record.public_send("#{name}_attachment=", attachment)
end
end
Version data entries
7 entries across 7 versions & 1 rubygems