This version now contains all the schema.org datatypes, enumerations and vocabularies. This was achieved by scraping the site using schema.org_scraper to create a JSON and YAML representation of the types. These are hosted on github so that the changes can easily be tracked.

The main problem that I did encounter was that the Enumeration type conflicts with the explanation in the Getting started Guide. In the type list, it says that Enumeration is a vocabulary derived from Thing, whereas in the explanation it says to uses the <link> tag to specify the value of the enumeration. The latter makes a lot more sense as otherwise it is unclear which property should be used to specify the value. I have therefore created an Enumeration DataType, which can be subclassed to create an Enumeration with specified valid values, as in the following:

# The publication format of the book.
class BookFormatType < Mida::DataType::Enumeration
  VALID_VALUES = [
    [::Mida::DataType::URL, %r{http://schema.org/EBook}i],
    [::Mida::DataType::URL, %r{http://schema.org/Hardcover}i],
    [::Mida::DataType::URL, %r{http://schema.org/Paperback}i]
  ]
end

To see the complete list of changes, please have a look at the CHANGELOG.