класс ActiveStorage::Blob

# File activestorage/app/models/active_storage/blob.rb, line 198
def audio?
  content_type.start_with?("audio")
end

# File activestorage/app/models/active_storage/blob.rb, line 343
  def content_type=(value)
    unless ActiveStorage.silence_invalid_content_types_warning
      if INVALID_VARIABLE_CONTENT_TYPES_DEPRECATED_IN_RAILS_7.include?(value)
        ActiveSupport::Deprecation.warn(<<-MSG.squish)
          #{value} is not a valid content type, it should not be used when creating a blob, and support for it will be removed in Rails 7.1.
          If you want to keep supporting this content type past Rails 7.1, add it to `config.active_storage.variable_content_types`.
          Dismiss this warning by setting `config.active_storage.silence_invalid_content_types_warning = true`.
        MSG
      end

      if INVALID_VARIABLE_CONTENT_TYPES_TO_SERVE_AS_BINARY_DEPRECATED_IN_RAILS_7.include?(value)
        ActiveSupport::Deprecation.warn(<<-MSG.squish)
          #{value} is not a valid content type, it should not be used when creating a blob, and support for it will be removed in Rails 7.1.
          If you want to keep supporting this content type past Rails 7.1, add it to `config.active_storage.content_types_to_serve_as_binary`.
          Dismiss this warning by setting `config.active_storage.silence_invalid_content_types_warning = true`.
        MSG
      end
    end

    super
  end

# File activestorage/app/models/active_storage/blob.rb, line 184
def custom_metadata
  self[:metadata][:custom] || {}
end

# File activestorage/app/models/active_storage/blob.rb, line 188
def custom_metadata=(metadata)
  self[:metadata] = self[:metadata].merge(custom: metadata)
end

# File activestorage/app/models/active_storage/blob.rb, line 318
def delete
  service.delete(key)
  service.delete_prefixed("variants/#{key}/") if image?
end

# File activestorage/app/models/active_storage/blob.rb, line 278
def download(&block)
  service.download key, &block
end

# File activestorage/app/models/active_storage/blob.rb, line 283
def download_chunk(range)
  service.download_chunk key, range
end

# File activestorage/app/models/active_storage/blob.rb, line 180
def filename
  ActiveStorage::Filename.new(self[:filename])
end

# File activestorage/app/models/active_storage/blob.rb, line 193
def image?
  content_type.start_with?("image")
end

# File activestorage/app/models/active_storage/blob.rb, line 172
def key
  # We can't wait until the record is first saved to have a key for it
  self[:key] ||= self.class.generate_unique_secure_token(length: MINIMUM_TOKEN_LENGTH)
end

# File activestorage/app/models/active_storage/blob.rb, line 300
def open(tmpdir: nil, &block)
  service.open(
    key,
    checksum: checksum,
    verify: !composed,
    name: [ "ActiveStorage-#{id}-", filename.extension_with_delimiter ],
    tmpdir: tmpdir,
    &block
  )
end

# File activestorage/app/models/active_storage/blob.rb, line 326
def purge
  destroy
  delete if previously_persisted?
rescue ActiveRecord::InvalidForeignKey
end

# File activestorage/app/models/active_storage/blob.rb, line 334
def purge_later
  ActiveStorage::PurgeJob.perform_later(self)
end

# File activestorage/app/models/active_storage/blob.rb, line 339
def service
  services.fetch(service_name)
end

# File activestorage/app/models/active_storage/blob.rb, line 228
def service_headers_for_direct_upload
  service.headers_for_direct_upload key, filename: filename, content_type: content_type, content_length: byte_size, checksum: checksum, custom_metadata: custom_metadata
end

# File activestorage/app/models/active_storage/blob.rb, line 223
def service_url_for_direct_upload(expires_in: ActiveStorage.service_urls_expire_in)
  service.url_for_direct_upload key, expires_in: expires_in, content_type: content_type, content_length: byte_size, checksum: checksum, custom_metadata: custom_metadata
end

# File activestorage/app/models/active_storage/blob.rb, line 164
def signed_id(purpose: :blob_id, expires_in: nil)
  super
end

# File activestorage/app/models/active_storage/blob.rb, line 208
def text?
  content_type.start_with?("text")
end

# File activestorage/app/models/active_storage/blob.rb, line 255
def upload(io, identify: true)
  unfurl io, identify: identify
  upload_without_unfurling io
end

# File activestorage/app/models/active_storage/blob.rb, line 216
def url(expires_in: ActiveStorage.service_urls_expire_in, disposition: :inline, filename: nil, **options)
  service.url key, expires_in: expires_in, filename: ActiveStorage::Filename.wrap(filename || self.filename),
    content_type: content_type_for_serving, disposition: forced_disposition_for_serving || disposition, **options
end

# File activestorage/app/models/active_storage/blob.rb, line 203
def video?
  content_type.start_with?("video")
end