Module: Models::DragonflyAccessor::ClassMethods

Defined in:
app/concerns/models/dragonfly_accessor.rb

Overview

ActiveSupport::Concern mixin: class methods.

Instance Method Summary collapse

Instance Method Details

#dragonfly_accessor(attribute, opts = {}, &config_block) ⇒ Object 



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# File 'app/concerns/models/dragonfly_accessor.rb', line 16

def dragonfly_accessor(attribute, opts = {}, &config_block)
  super do
    config_block&.call

    mime_attribute = :"#{attribute}_mime_type" if opts.delete(:mime_type)

    after_assign do |attachment|
      attrs = { "#{attribute}_name": FileNamingHelper.sanitize_file_name(attachment.name) }
      attrs[mime_attribute] = attachment.mime_type if mime_attribute
      assign_attributes(attrs)
    end

    after_unassign do |_attachment|
      assign_attributes(mime_attribute => nil) if mime_attribute
    end

    storage_options do |a|
      # S3DataStore exposes a private `generate_uid` that produces our
      # canonical path. The local FileDataStore (used in tests) doesn't,
      # so fall back to a SecureRandom-derived path that follows the same
      # `<basename>/<rand>/<name>` shape.
      path =
        if a.app.datastore.respond_to?(:generate_uid, true)
          a.app.datastore.send(:generate_uid, a.name || "file")
        else
          "#{a.name || 'file'}/#{SecureRandom.hex(16)}"
        end
      { path: path }
    end
  end
end