Module: ActiveRecord::Associations::ClassMethods

Includes:
BelongsToOneOf
Defined in:
lib/belongs_to_one_of.rb

Constant Summary

Constants included from BelongsToOneOf

BelongsToOneOf::VERSION

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/belongs_to_one_of.rb', line 70

def self.included(base)
  base.extend(ClassMethods)
end

Instance Method Details

#belongs_to_one_of(resource_key, raw_possible_resource_types, include_type_column: false) ⇒ Object 



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# File 'lib/belongs_to_one_of.rb', line 15

def belongs_to_one_of(
  resource_key,
  raw_possible_resource_types,
  include_type_column: false
)
  resource_type_field = "#{resource_key}_type"
  unless [true, false].include?(include_type_column)
    resource_type_field =
      include_type_column
  end

  config_model = BelongsToOneOfModel.new(
    resource_key,
    raw_possible_resource_types,
    include_type_column,
    resource_type_field,
    self,
  )

  # validators
  define_method "belongs_to_exactly_one_#{resource_key}" do
    config_model.validate_exactly_one_resource(self)
  end

  define_method "belongs_to_at_most_one_#{resource_key}" do
    config_model.validate_at_most_one_resource(self)
  end

  if include_type_column
    define_method "#{resource_type_field}_matches_#{resource_key}" do
      config_model.validate_correct_resource_type(self)
    end
  end

  # setters
  define_method "#{resource_key}=" do |resource|
    config_model.resource_setter(resource, self)
  end

  # getters
  define_method resource_key do
    config_model.resource_getter(self)
  end

  define_method "#{resource_key}_id" do
    config_model.resource_id_getter(self)
  end

  unless include_type_column
    define_method "#{resource_key}_type" do
      config_model.resource_type_getter(self)
    end
  end
end