Model keys with MongoMapper

show_model_keys.rb

MongoMapper.database.collection('users').drop
class User
  include MongoMapper::Document

  key :name, String, :required => true
end
User.destroy_all
text = []
text << "After model with key :name, String"
text << User.keys.keys.inspect

text <<  'User.create(:name => "Fred")'
User.create(:name => "Fred")
text <<  User.keys.keys.inspect

text <<  'User.create(:name => "Fred", :email => "[email protected]")'
User.create(:name => "Fred", :email => "[email protected]")
text <<  User.keys.keys.inspect

text <<  'User.destroy_all'
User.destroy_all
text <<  User.keys.keys.inspect

text.each {|t| puts t}

# Results
=begin
After model with key :name, String
["name", "_id"]
User.create(:name => "Fred")
["name", "_id"]
User.create(:name => "Fred", :email => "[email protected]")
["name", "_id", "email"]
User.destroy_all
["name", "_id", "email"]
=end

class User
  include MongoMapper::Document
  key :name, String, :required => true
  key :city, String
end
text = []
text <<  'Extended the class, adding city'
text <<  User.keys.keys.inspect
text.each {|t| puts t}

# Results
=begin
Extended the class, adding city
["city", "name", "_id", "email"]
=end