Class: Treat::Workers::Formatters::Serializers::Mongo

Inherits:
Object
  • Object
show all
Defined in:
lib/treat/workers/formatters/serializers/mongo.rb

Overview

Serialization of entities to a Mongo database.

Constant Summary collapse

DefaultOptions = 
{
  :recursive => true,
  :stop_at => nil
}

Class Method Summary collapse

Class Method Details

.do_serialize(entity, options) ⇒ Object 



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# File 'lib/treat/workers/formatters/serializers/mongo.rb', line 45

def self.do_serialize(entity, options)

  children = []

  if options[:recursive] && entity.has_children?
    entity.each do |child|
      next if options[:stop_at] && child.class.
      compare_with(options[:stop_at]) < 0
      children << self.do_serialize(child, options)
    end
  end

  entity_token = {
    :id => entity.id,
    :value => entity.value,
    :type => entity.type.to_s,
    :children => children,
    :parent => (entity.has_parent? ? entity.parent.id : nil),
    :features => entity.features
  }

  entity_token

end

.serialize(entity, options = {}) ⇒ Object 



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# File 'lib/treat/workers/formatters/serializers/mongo.rb', line 12

def self.serialize(entity, options = {})

  options = DefaultOptions.merge(options)
  options[:stop_at] = options[:stop_at] ?
  Treat::Entities.const_get(
  options[:stop_at].to_s.capitalize) : nil

  options[:db] ||= Treat.databases.mongo.db
  
  if !options[:db]
    raise Treat::Exception,
    'Must supply the database name in config. ' +
    '(Treat.databases.mongo.db = ...) or pass ' +
    'it as a parameter to #serialize.'
  end

  @@database ||= Mongo::Connection.
  new(Treat.databases.mongo.host).
  db(options[:db])

  supertype =  Treat::Entities.const_get(
  entity.type.to_s.capitalize.intern).superclass.mn.downcase
  supertype = entity.type.to_s if supertype == 'entity'
  supertypes = supertype + 's'
  
  coll = @@database.collection(supertypes)
  entity_token = self.do_serialize(entity, options)
  coll.update({id: entity.id}, entity_token, {upsert: true})
  
  {db: options[:db], collection: supertypes, id: entity.id}
  
end