Sha256: b2a24351bba69962c6d3b342295cf12ea31cd9eac7ed7b256876b5ec06c7a9fe
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Size: 1.56 KB
Versions: 25
Compression:
Stored size: 1.56 KB
Contents
# frozen_string_literal: true
# Like an ActiveStorage::Variant, but keeps detail about the variant in the database as an
# ActiveStorage::VariantRecord. This is only used if +ActiveStorage.track_variants+ is enabled.
class ActiveStorage::VariantWithRecord
attr_reader :blob, :variation
delegate :service, to: :blob
def initialize(blob, variation)
@blob, @variation = blob, ActiveStorage::Variation.wrap(variation)
end
def processed
process
self
end
def process
transform_blob { |image| create_or_find_record(image: image) } unless processed?
end
def processed?
record.present?
end
def image
record&.image
end
delegate :key, :url, :download, to: :image, allow_nil: true
private
def transform_blob
blob.open do |input|
variation.transform(input) do |output|
yield io: output, filename: "#{blob.filename.base}.#{variation.format.downcase}",
content_type: variation.content_type, service_name: blob.service.name
end
end
end
def create_or_find_record(image:)
@record =
ActiveRecord::Base.connected_to(role: ActiveRecord.writing_role) do
blob.variant_records.create_or_find_by!(variation_digest: variation.digest) do |record|
record.image.attach(image)
end
end
end
def record
@record ||= if blob.variant_records.loaded?
blob.variant_records.find { |v| v.variation_digest == variation.digest }
else
blob.variant_records.find_by(variation_digest: variation.digest)
end
end
end
Version data entries
25 entries across 25 versions & 5 rubygems