| contact = Contact.new | |
| # first_name is a regular attribute mapped to | |
| # a column in contacts table | |
| contact.first_name = 'John' | |
| # age attribute was added dynamically | |
| contact.age = 27 | |
| contact.save | |
| # we can also do this | |
| second_contact = Contact.new(first_name: 'Jane', age: 25) |
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