def self.setup(name, model, options = {})
assert_kind_of 'name', name, Symbol
assert_kind_of 'model', model, Model
assert_kind_of 'options', options, Hash
repository_name = model.repository.name
model.class_eval "def \#{name}\n\#{name}_association.nil? ? nil : \#{name}_association\nend\n\ndef \#{name}=(parent)\n\#{name}_association.replace(parent)\nend\n\nprivate\n\ndef \#{name}_association\n@\#{name}_association ||= begin\nunless relationship = model.relationships(\#{repository_name.inspect})[:\#{name}]\nraise ArgumentError, \"Relationship \#{name.inspect} does not exist in \\\#{model}\"\nend\nassociation = Proxy.new(relationship, self)\nchild_associations << association\nassociation\nend\nend\n", __FILE__, __LINE__
model.relationships(repository_name)[name] = Relationship.new(
name,
repository_name,
model,
options.fetch(:class_name, Extlib::Inflection.classify(name)),
options
)
end