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# Representation of multiple attachments to a model.
class ActiveStorage::Attached::Many < ActiveStorage::Attached
delegate_missing_to :attachments
# Returns all the associated attachment records.
#
# You don't have to call this method to access the attachments' methods as
# they are all available at the model level.
def attachments
record.public_send("#{name}_attachments")
end
# Associates one or several attachments with the current record, saving
# them to the database.
def attach(*attachables)
record.public_send("#{name}_attachments=", attachments | Array(attachables).flat_map do |attachable|
ActiveStorage::Attachment.create!(record: record, name: name, blob: create_blob_from(attachable))
end)
end
# Checks the presence of attachments.
#
# class Gallery < ActiveRecord::Base
# has_many_attached :photos
# end
#
# Gallery.new.photos.attached? # => false
def attached?
attachments.any?
end
# Directly purges each associated attachment (i.e. destroys the blobs and
# attachments and deletes the files on the service).
def purge
if attached?
attachments.each(&:purge)
attachments.reload
end
end
# Purges each associated attachment through the queuing system.
def purge_later
if attached?
attachments.each(&:purge_later)
end
end
end
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