unepwcmc/SAPI

# == Schema Information
#
# Table name: distributions
#
#  id               :integer          not null, primary key
#  taxon_concept_id :integer          not null
#  geo_entity_id    :integer          not null
#  created_at       :datetime         not null
#  updated_at       :datetime         not null
#  created_by_id    :integer
#  updated_by_id    :integer
#  internal_notes   :text
#

class Distribution < ApplicationRecord
  include Changeable
  include TrackWhoDoesIt
  # Migrated to controller (Strong Parameters)
  # attr_accessible :geo_entity_id, :taxon_concept_id, :tag_list,
  #   :references_attributes, :internal_notes, :created_by_id, :updated_by_id

  acts_as_taggable

  belongs_to :geo_entity
  belongs_to :taxon_concept
  has_many :distribution_references, :dependent => :destroy
  has_many :references, :through => :distribution_references
  has_many :distribution_reassignments,
    class_name: 'NomenclatureChange::DistributionReassignment',
    as: :reassignable,
    dependent: :destroy
  accepts_nested_attributes_for :references, :allow_destroy => true

  validates :taxon_concept_id, :uniqueness => { :scope => :geo_entity_id, :message => 'already has this distribution' }
  before_save :normalise_blank_values

  def add_existing_references(ids)
    reference_ids = ids.split(",")

    reference_ids.each do |r|
      reference = Reference.find(r)
      unless reference.nil?
        self.distribution_references.
          create({
            :distribution_id => self.id,
            :reference_id => reference.id
          })
      end
    end
  end

  private

  def normalise_blank_values
    attributes.each do |column, value|
      self[column].present? || self[column] = nil
    end
  end
end