Contents

module MetaModel
  class Model < MetaModelBase
    property :class_name, type: String

    has_one :out, :superclass_model, type: :inherits_from, model_class: 'MetaModel::Model'

    has_one :out, :id_property, type: :has_id_property, model_class: 'MetaModel::Property'
    has_many :out, :properties, type: :has_property, model_class: 'MetaModel::Property'

    has_many :both, :assocs, model_class: 'MetaModel::Model', rel_class: 'MetaModel::HasAssociation'

    before_destroy :destroy_properties

    def to_param
      self.class_name.tableize
    end

  #  def property_ids
  #    properties(:p).pluck(p: :uuid)
  #  end

    def has_associations
      assocs.each_rel.to_a
    end

    def self.hierarchically
      Hash.new.tap do |result|
        model_parents = Hash[*all.query_as(:model).optional_match("model-[:inherits_from]->(parent)").pluck(:model, :parent).flatten]

        all.query_as(:model).where('NOT(model-[:inherits_from]->())').pluck(:model).each do |model|
          result[model] = {}
        end

        all.query_as(:model).match('p=model-[:inherits_from*1..]->()').pluck('nodes(p)').each do |path|
          path.reverse.inject(result) do |sub_result, model|
            sub_result[model] ||= {}
            sub_result[model]
          end
        end

      end
    end

    private

    def destroy_properties
      properties.each(&:destroy)
      id_property.try(:destroy)
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
neo4j-meta_model-0.0.1	app/models/meta_model/model.rb