Class: Identifier::Global::Doi

Inherits:
Identifier::Global show all
Defined in:
app/models/identifier/global/doi.rb

Overview

Digital Object Identifier

per  http://www.doi.org/doi_handbook/2_Numbering.html

Section 2.2 on 1/31/2014 The DOI syntax shall be made up of a DOI prefix and a DOI suffix separated by a forward slash. There is no defined limit on the length of the DOI name, or of the DOI prefix or DOI suffix. The DOI name is case-insensitive and can incorporate any printable characters from the legal graphic characters of Unicode. Further constraints on character use (e.g. use of language-specific alphanumeric characters) can be defined for an application by the ISO 26324 Registration Authority. The combination of a unique DOI prefix (assigned to a particular DOI registrant) and a unique DOI suffix (provided by that registrant for a specific object) is unique, and so allows the de-centralized allocation of DOI names. The DOI name is an opaque string for the purposes of the DOI system. No definitive information may be inferred from the specific character string of a DOI name. In particular, the inclusion in a DOI name of any registrant code allocated to a specific registrant does not provide evidence of the ownership of rights or current management responsibility of any intellectual property in the referent. Such information may be asserted in the associated metadata. Section 2.2.2 General The DOI prefix shall be composed of a directory indicator followed by a registrant code. These two components shall be separated by a full stop (period).

Directory indicator

The directory indicator shall be "10". The directory indicator distinguishes the entire set of character strings
  (prefix and suffix) as digital object identifiers within the resolution system.

Registrant code

The second element of the DOI prefix shall be the registrant code. The registrant code is a unique string assigned
   to a registrant.

Constant Summary collapse

DOI_MATCH = 
/^(doi:|http(s)?:\/\/(dx\.)?doi\.org\/)/i

Constants included from SoftValidation

SoftValidation::ANCESTORS_WITH_SOFT_VALIDATIONS

Instance Attribute Summary

Attributes inherited from Identifier::Global

#relation

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Identifier::Global

#build_cached, #dwc_occurrences, #is_global?, #sv_resolves?

Methods included from SoftValidation

#clear_soft_validations, #fix_for, #fix_soft_validations, #soft_fixed?, #soft_valid?, #soft_validate, #soft_validated?, #soft_validations, #soft_validators

Class Method Details

.preface_doi(raw) ⇒ Object 



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# File 'app/models/identifier/global/doi.rb', line 49

def self.preface_doi(raw)
  return raw if raw.blank?
  raw.strip!
  return raw if raw.start_with?('http') # already a URL?
  # probably a raw DOI
  'https://doi.org/' + raw
end

Instance Method Details

#handle_prefixes ⇒ Object (protected)

permit and remove various preambles: 'doi:', 'http://dx.doi.org/', 'https://doi.org/'



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# File 'app/models/identifier/global/doi.rb', line 43

def handle_prefixes
  return identifier if identifier.blank?
  identifier.strip!
  identifier.gsub!(DOI_MATCH, '') if identifier
end