SpeciesFileGroup/taxonworks

# A class used for transient data, primarily in the development of import scripts.
#
# @!attribute name
#   @return [String]
#     required, the lookup name
#
# @!attribute metadata
#   @return [Hstore]
#     a Hstore column
#
# @!attribute metadata_json
#   @return [Json]
#     a JSON column
#
# Possible usage
#
#   i = Import.find_or_create_by_name('My Import')
#
#   # set some values
#
#   my_values = ['a', 'b', 'c']
#
#   i.set('my_values_name', my_values)
#
#   i.get('my_values_name') # =>  ['a', 'b', 'c']
#
#
class Import < ApplicationRecord
  store_accessor :metadata

  validates_presence_of :name
  validates_uniqueness_of :name

  def set(key, value)
    h      = metadata_json
    h      ||= {}
    h[key] = value
    update_attribute(:metadata_json, h)
  end

  def get(key)
    return nil if metadata_json.nil?
    metadata_json[key]
  end

end