Module: Relaton::Index::IdNumber

Included in:
FileIO, Type
Defined in:
lib/relaton/index/id_number.rb

Overview

Shared narrowing/sort key for structured (pubid) index ids. Type uses it for binary-search narrowing; FileIO uses it to sort the index and detect sortedness. The two MUST agree, so the rule lives in one place.

Instance Method Summary collapse

Instance Method Details

#get_id_number(id) ⇒ Object

One-level narrowing key: a supplement/amendment is filed under its immediate parent's number, everything else under its own number.

Pubid 2.x exposes the parent via .base_identifier (the LutaML Pubid::Iso::Identifiers::* classes that relaton loads at runtime). A standalone require "pubid-iso" can instead surface the legacy Pubid::Iso::Identifier::* classes, which use .base; we accept either so the key is stable in both load orders. The wrong accessor silently falls through to the row's own number and breaks bsearch narrowing.



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# File 'lib/relaton/index/id_number.rb', line 16

def get_id_number(id)
  base = id_base(id)
  ((base && base.number) || id.number).to_s
end

#id_base(id) ⇒ Object 



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# File 'lib/relaton/index/id_number.rb', line 21

def id_base(id)
  if id.respond_to?(:base_identifier) && id.base_identifier
    id.base_identifier
  elsif id.respond_to?(:base) && id.base
    id.base
  end
end