Module: Eco::API::Common::ClassHierarchy

Includes:
ClassHelpers
Included in:
Session::Batch::BasePolicy, Session::Config::Workflow
Defined in:
lib/eco/api/common/class_hierarchy.rb

Overview

Helpers for dynammic generation of classes based on a hierarchical model

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Language::Klass::InheritableClassVars

#inheritable_attrs, #inheritable_class_vars, #inherited

Methods included from Language::Klass::Naming

#instance_variable_name, #to_constant

Methods included from Language::Klass::Hierarchy

#descendants, #descendants?

Methods included from Language::Klass::Builder

#new_class

Methods included from Language::Klass::Resolver

#class_resolver, #resolve_class

Instance Attribute Details

#model ⇒ Object

Returns the value of attribute model.



9
10
11
 
# File 'lib/eco/api/common/class_hierarchy.rb', line 9

def model
  @model
end

Instance Method Details

#model_attrs ⇒ Array<String>

Returns the keys of the current class' model.

Returns:

  • (Array<String>) —

    the keys of the current class' model



17
18
19
 
# File 'lib/eco/api/common/class_hierarchy.rb', line 17

def model_attrs
  model&.keys || []
end

#parse_model(model) ⇒ Hash?

Thanks to this step the format on the declaration of the model is flexible

Parameters:

  • model (Hash, Enumerable, String, Symbol, nil)

Returns:

  • (Hash, nil) —

    where keys are Symbol s



24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/eco/api/common/class_hierarchy.rb', line 24

def parse_model(model)
  case model
  when String
    parse_model(model.to_sym)
  when Symbol
    {model => nil}
  when Hash
    model.transform_keys(&:to_sym)
  when Enumerable
    model.each_with_object({}) do |sub, hash|
      hash.merge!(parse_model(sub))
    end
  when NilClass
    nil
  else
    raise "Incorrect model declaration, allowed String, Symbol, Hash and Enumerable. Given: #{model.class}"
  end
end