Class: ReeDao::OneToOne

Inherits:
Object
  • Object
show all
Includes:
Ree::FnDSL
Defined in:
lib/ree_lib/packages/ree_dao/package/ree_dao/functions/one_to_one.rb

Instance Method Summary collapse

Instance Method Details

#call(list, assoc_dao, **opts) ⇒ Object



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# File 'lib/ree_lib/packages/ree_dao/package/ree_dao/functions/one_to_one.rb', line 19

def call(list, assoc_dao, **opts)
  return if list.empty?

  dto_class = assoc_dao
    .opts[:schema_mapper]
    .dto(:db_load)

  assoc_name = underscore(demodulize(dto_class.name))
  reverse = opts[:reverse]

  assoc_setter = if opts.key?(:assoc_setter)
    opts[:assoc_setter]
  else
    "set_#{assoc_name}"
  end

  foreign_key = if opts.key?(:foreign_key)
    opts[:foreign_key]
  else
    if reverse
      name = underscore(demodulize(list.first.class.name))
      "#{name}_id".to_sym
    else
      :id
    end
  end

  root_ids = if reverse
    list.map(&:id)
  else
    list.map(&:"#{foreign_key}")
  end

  assoc_by_fk = index_by(assoc_dao.where(foreign_key => root_ids).all) { _1.send(foreign_key) }

  list.each do |item|
    item.send(assoc_setter, assoc_by_fk[item.id])
  end

  nil
end