I researched the data types available in DataMapper, the ORM for Ruby, so here’s a memo.

Data types available in DataMapper (Available Types)

DM-Core supports the following ‘primitive’ data-types.

• Boolean
• String
• Text
• Float
• Integer
• Decimal
• DateTime, Date, Time
• Object, (marshalled)
• Discriminator
• Binary

・Source: DataMapper - Properties

That’s all from the Gemba.