Module: Renalware::ExplicitStateModel::ClassMethods

Defined in:
app/models/concerns/renalware/explicit_state_model.rb

Instance Method Summary collapse

Instance Method Details

#has_states(*states) ⇒ Object

Adds a ActiveRecord scopes for each state defined; e.g. ‘Letter.draft`

rubocop :disable Naming/PredicateName



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# File 'app/models/concerns/renalware/explicit_state_model.rb', line 57

def has_states(*states)
  states.each do |state|
    state_scope(state, state)

    define_method "#{state}?" do
      send(:state) == state.to_s
    end
  end

  define_singleton_method "states" do
    states
  end
end

#state_class_name(name) ⇒ Object 



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# File 'app/models/concerns/renalware/explicit_state_model.rb', line 87

def state_class_name(name)
  const_get(name.to_s.classify).to_s
end

#state_scope(name, state) ⇒ Object

Allows for custom scope names, example:

class Letter
  has_states :draft, :approved
  state_scope :reviewable, :draft
end

Letter.reviewable # => returns draft letters



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# File 'app/models/concerns/renalware/explicit_state_model.rb', line 81

def state_scope(name, state)
  instance_eval do
    scope name, -> { where(type: state_class_name(state)) }
  end
end