Module: ActiveItem::Associations

Extended by:
ActiveSupport::Concern
Includes:
ModelLoader
Included in:
Base
Defined in:
lib/active_item/associations.rb

Overview

Provides has_many and belongs_to association macros with lazy loading, preloading support, and dependent record handling (destroy, nullify, restrict).

Instance Method Summary collapse

Methods included from ModelLoader

#safe_constantize_model

Instance Method Details

#check_dependent_associations ⇒ Object 



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# File 'lib/active_item/associations.rb', line 19

def check_dependent_associations
  self.class._associations.each do |name, config|
    next unless config[:type] == :has_many && config[:dependent]

    case config[:dependent]
    when :restrict_with_exception
      raise DeleteRestrictionError, name if send(name).limit(1).any?
    when :restrict_with_error
      if send(name).limit(1).any?
        error_message = config[:message] || "Cannot delete #{self.class.name} because dependent #{name} exist"
        errors.add(:base, error_message)
        throw(:abort)
      end
    when :destroy
      send(name).each(&:destroy)
    when :delete_all
      send(name).each(&:delete)
    when :nullify
      foreign_key = config[:foreign_key]
      send(name).each { |record| record.update(foreign_key => nil) }
    end
  end
end