Module: Volt::Models::Helpers::Base::ClassMethods

Defined in:
lib/volt/models/helpers/base.rb

Instance Method Summary collapse

Instance Method Details

#class_at_path(path) ⇒ Object

Gets the class for a model at the specified path.



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# File 'lib/volt/models/helpers/base.rb', line 75

def class_at_path(path)
  if path
    # remove the _ and then singularize/pluralize
    if path.last == :[]
      index = -2
    else
      index = -1
    end

    # process_class_name is defined by Model/ArrayModel as
    # singularize/pluralize
    klass_name = process_class_name(klass_name = path[index]).camelize

    begin
      # Lookup the class
      klass = Object.const_get(klass_name)

      # Use it if it is a model
      return (klass < self ? klass : (klass = self))
    rescue NameError => e
      # Ignore exception, just means the model isn't defined
      #
      return klass = self if klass_name.singular?
    end

    # Checl for special case where we are subclassing a Volt::Model that has a custom Volt::ArrayModel
    begin
      # Get the pluralised name of the superclass of the model
      super_klass_name = Object.const_get(klass_name.singularize).superclass.to_s.pluralize

      # Get the class, rescue if not found
      klass = Object.const_get(super_klass_name)

      klass = self unless klass < self
    rescue NameError => e
      # Ignore exception, array model isn't defined.
      return klass = self
    end

  else
    klass = self
  end

  klass
end