module Eco::API::Common::ClassHierarchy

Helpers for dynammic generation of classes based on a hierarchical model @attr_reader model [Hash, nil] the `model` of the current `class`

Attributes

model[R]

Public Instance Methods

model=(value) click to toggle source

@param value [Hash, Enumerable, String, Symbol, nil] unparsed model to be assigned to the `class`

# File lib/eco/api/common/class_hierarchy.rb, line 12
def model=(value)
  @model = parse_model(value)
end
model_attrs() click to toggle source

@return [Array<String>] the `keys` of the current class' `model`

# File lib/eco/api/common/class_hierarchy.rb, line 17
def model_attrs
  (model && model.keys) || []
end
parse_model(model) click to toggle source

Thanks to this step the format on the declaration of the model is flexible @param model [Hash, Enumerable, String, Symbol, nil] @return [Hash, nil] where keys are `Symbol` s

# File lib/eco/api/common/class_hierarchy.rb, line 24
def parse_model(model)
  case model
  when String
    return parse_model(model.to_sym)
  when Symbol
    return {model => nil}
  when Hash
    return model.each_with_object({}) do |(k,v), hash|
      hash[k.to_sym] = v
    end
  when Enumerable
    return model.each_with_object({}) do |sub, hash|
      hash.merge!(parse_model(sub))
    end
  when NilClass
    return nil
  else
    raise "Incorrect model declaration, allowed String, Symbol, Hash and Enumerable. Given: #{model.class}"
  end
end