Maps object to hashes using DSL. You can give different namespaces for mappings
by extending module or class with Spine::Mappings::Repository.
To install it, add the gem to your Gemfile:
gem 'spine-mappings'Then run bundle. If you're not using Bundler, just gem install spine-mappings.
Spine::Mappings.define :tag do
integer :id, from: identity
string :name
end
Spine::Mappings.define :product do
integer :id, from: :identity
string :name
decimal :price
boolean :is_available, { |source| source.available? }
date :available_from
date :available_until
tag :tags, nullable: true
end
Spine::Mapings.define :timestamps do
timestamp :created_at
timestamp :updated_at
end
Spine::Mappings.find(:product, :timestamps).map(product)
Spine::Mappings.find(:product, :timestamps).map_all(products)You can provide also compact or strict strategy for mapping. First adds
value only when it is not nil, second adds everything what was defined. Default
is strict.
Spine::Mappings.find(:product, :timestamps).map(product, strategy: :compact)