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Contents
module Trax
module Model
module MTI
module Entity
extend ::ActiveSupport::Concern
included do
class_attribute :_mti_namespace
scope :records, lambda{
map(&:entity)
}
scope :fully_loaded, lambda{
relation = current_scope.dup
entity_ids = relation.pluck(:id)
entity_types = entity_ids.map { |id| ::Trax::Model::UUID.new(id[0..1]) }
.map(&:record_type)
.flatten
.compact
.uniq
relation_names = entity_types.map{ |type| :"#{type.name.demodulize.underscore}_entity" }
current_scope.includes(relation_names).references(relation_names)
}
end
def model_type
@model_type ||= uuid.record_type
end
def model_type_key
:"#{model_type.name.demodulize.underscore}_entity"
end
def model
@model ||= __send__(model_type_key)
end
def uuid
@uuid ||= self[:id].uuid
end
module ClassMethods
def mti_namespace(namespace)
_mti_namespace = (namespace.is_a?(String)) ? namespace.constantize : namespace
_mti_namespace.all.reject{|model| model.abstract_class }.each do |subclass|
key = :"#{subclass.name.demodulize.underscore}_entity"
has_one key, :class_name => subclass.name, :foreign_key => :id
end
end
def multiple_table_inheritance_namespace(namespace)
mti_namespace(namespace)
end
end
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems