Error passing Metadata type for list_metadata

[AL9000]

When passing Metadata type that doesn't exist in an org, list_metadata returns a NoMethodError.

Example :

client.list_metadata('CampaignOwnerSharingRule')

returns :

c:/Ruby193/lib/ruby/gems/1.9.1/gems/metaforce-1.0.6/lib/metaforce/abstract_client.rb:51:in `_request': undefined method `result' for nil:NilClass (NoMethodError)
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/metaforce-1.0.6/lib/metaforce/abstract_client.rb:41:in `request'
    from c:/Ruby193/lib/ruby/gems/1.9.1/gems/metaforce-1.0.6/lib/metaforce/metadata/client/file.rb:19:in `list_metadata'

[ejholmes]

Is CampaignOwnerSharingRule a newer metadata type? Can you try setting the api version to 27.0?

Metaforce.configure do |config|
  config.api_version = '27.0'
end

[AL9000]

I've set the api version to 27.0 and have the same result.
I've also done some tests and ruby client.list_metadata(<meta>) works only when <meta> exist in my org.

[loganm]

I've just encountered this issue myself. If there are no elements returned for a type of list_metadata call, then metaforce throws an exception.

I would have expected an empty results hash instead.

I worked around this by catching and ignoring the exception

begin
  client.list_metadata(t.xml_name).collect do |o|
    metadata << o.full_name
  end
  rescue Exception
end