def register_dragonfly_app(macro_name, app)
(class << self; self; end).class_eval do
define_method macro_name do |attribute, &config_block|
before_save :save_dragonfly_attachments
before_destroy :destroy_dragonfly_attachments
dragonfly_attachment_classes << new_dragonfly_attachment_class(attribute, app, config_block)
define_method "#{attribute}=" do |value|
dragonfly_attachments[attribute].assign(value)
end
define_method attribute do
dragonfly_attachments[attribute].to_value
end
define_method "#{attribute}_url=" do |url|
unless url.blank?
dragonfly_attachments[attribute].assign(app.fetch_url(url))
end
end
define_method "#{attribute}_url" do
nil
end
define_method "remove_#{attribute}=" do |value|
unless [0, "0", false, "false", "", nil].include?(value)
dragonfly_attachments[attribute].assign(nil)
instance_variable_set("@remove_#{attribute}", true)
end
end
attr_reader "remove_#{attribute}"
define_method "retained_#{attribute}=" do |string|
unless string.blank?
begin
dragonfly_attachments[attribute].retained_attrs = Serializer.json_decode(string, :symbolize_keys => true)
rescue Serializer::BadString => e
app.log.warn("*** WARNING ***: couldn't update attachment with serialized retained_#{attribute} string #{string.inspect}")
end
end
dragonfly_attachments[attribute].should_retain = true
dragonfly_attachments[attribute].retain!
string
end
define_method "retained_#{attribute}" do
attrs = dragonfly_attachments[attribute].retained_attrs
Serializer.json_encode(attrs) if attrs
end
end
end
app
end