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ruby-rdf / rdf-vocab

Common RDF Vocabularies
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Cannot `require 'rdf-vocab'` #8

Closed dazza-codes closed 9 years ago

dazza-codes commented 9 years ago

Cannot require rdf-vocab directly, but it is present after require of linkeddata gem; i.e.

[1] pry(main)> RDF::Vocab::OA.Annotation
NameError: uninitialized constant RDF
from (pry):1:in `__pry__'
[2] pry(main)> require 'rdf-vocab'
LoadError: cannot load such file -- rdf-vocab
from (pry):2:in `require'
[3] pry(main)> RDF::Vocab::OA.Annotation
NameError: uninitialized constant RDF
from (pry):3:in `__pry__'
[4] pry(main)> require 'linkeddata'
=> true
[5] pry(main)> RDF::Vocab::OA.Annotation
=> #<RDF::Vocabulary::Term:0x3f82f113a340 URI:http://www.w3.org/ns/oa#Annotation>
[6] pry(main)>

The entire bundle is:

$ bundle show --paths
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/data/src/dlss/ld4l_data/annotations/triannon-client
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gkellogg commented 9 years ago

I doesn't/shouldn't require the linkeddata gem, but it probably needs a require "rdf/vocab". In the case of the individual vocabularies, they'll need a require "rdf/vocab" as they may not be loaded from the autoload in rdf/vocab. rdf/vocab does require rdf.

There should be a way to do this in the RDF::VocabularyLoader through an option.

gkellogg commented 9 years ago

As a workaround, instead of require "linkeddatea", try require "rdf/vocab" before manually loading your vocabulary. Of course, if you do this, you shouldn't need to manually load the vocabulary itself.

dazza-codes commented 9 years ago

require 'rdf/vocab' works for me; added pull request to update docs to that effect.