Projeto no Phabricator: #cognate

Extensão:Cognate

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This page is a translated version of the page Extension:Cognate and the translation is 22% complete.

Other languages:
Deutsch • ‎English • ‎español • ‎euskara • ‎français • ‎magyar • ‎português do Brasil • ‎中文 • ‎日本語
Manual de extensões do MediaWiki
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Extension:Cognate
Estado da versão: estável
Implementação Database
Descrição Link different language versions of a page by using the page title.
Autor(es) Gabriel Birke, Addshore
Última versão Continuous updates
Política de
compatibilidade
branches por lançamento
MediaWiki 1.29+
Modifica o banco
de dados
Sim
Tabelas cognate_sites
cognate_pages
cognate_titles
Licença GNU General Public License 2.0 or later
Download
Hooks usados
PageContentSaveComplete
LanguageLinks
ArticleDeleteComplete
Traduzir a extensão Cognate, se estiver disponível no translatewiki.net
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A extensão Cognate cria um armazém central aonde títulos de páginas para um grupo de sites é armazenado. A extensão pode gerar ligações de interwiki entre projetos wiki em casos em que os títulos são os mesmos. Ela foi desenvolvida para resolver a tarefa de "centralizar ligações de interwiki para o Wiktionary".

"Cognate" is a linguistic concept, referring to words in different languages developed from the same origin. This means that this extension is misnamed—since this extension links pages with the same title across wikis, a proper name would be “Homograph”.

Assumptions and restrictions

  • Pages must be in one of the standard MediaWiki namespaces.
  • Page titles are the same across languages (with some simple normalization applied).
  • Sites should have the same interwiki structure for language links.
  • Pages should not contain inter language links in wikitext as these will override the link provided by Cognate.
  • Unexpected hash conflicts are unlikely but could occur, and would result in unexpected language links.

Como funciona

Title Normalization

Very simple title normalization (reduction to ASCII) occurs within the extension. This can be seen in the StringNormalizer class.

Initially the amount of normalization is very small. Requests can be made to expand this and will be added on a case by case basis.

String Normalized Notas
Hello… Hello... The raw string contains an ellipsis character. This is normalized to three . characters
lepelle’ lepelle' The normalized string has a normalized apostrophe.

Title Hashing

Titles are hashed using sha256. This can be seen in the StringHasher class.

Part of the hash is then stored in the database in a BIG_INT field for efficient lookups.

There are roughly 18,446,744,073,709,551,615 possible values.

String Hash Int
A 559AEAD08264D5795D3909718CDD05ABD49572E84FE55590EEF31A88A08FDFFD 6168500820899059065
Foo 1CBEC737F863E4922CEE63CC2EBBFAAFCD1CFF8B790D8CFD2E6A5D550B648AFA 2071311921841431698
1234567890 C775E7B757EDE630CD0AA1113BD102661AB38829CA52A6422AB782862F268646 -4074095513246505424

Matching Hashes

As titles that require links are assumed to be the same post normalization, they will result in the same hash and thus the same Int stored in the database.

Some sample data might look as follows when loading the "Foo..." page on enwiktionary.

Wiki Título Hash Int Normalized Hash Int Notas
enwiktionary Foo... 395730596998145766 395730596998145766 Matched row
frwiktionary Foo… -7435652355441782233 395730596998145766 Matched row, even though the pre normalized title includes the ellipsis character.
dewiktionary Foo... 395730596998145766 395730596998145766 Matched row
arwiktionary Foo 2071311921841431698 2071311921841431698

Overwriting

It is possible to overwrite the automatic links provided by Cognate, simply by adding one or more interwiki links in the page.

That also means that to make Cognate work when the extension is deployed, the pages should not contain inter language links in their wikitext.

Testing

Wikimedia Cloud Services logo notext.svg

The extension can be tested on beta wiktionary sites:

These sites are linked together using the Cognate extension with added interwiki sorting provided by the InterwikiSorting extension.

Instalação

  • Baixe e coloque o(s) arquivo(s) num diretório chamado Cognate na sua pasta extensions/.
  • Adicione o seguinte código ao final do seu arquivo LocalSettings.php:
    wfLoadExtension( 'Cognate' );
    # Settings used in WMF production
    # Use the external cluster 'extension1' and dbname 'cognate_wiktionary'
    $wgCognateDb = 'cognate_wiktionary';
    $wgCognateCluster = 'extension1';
    # Only work on the main namespace
    $wgCognateNamespaces = [ 0 ];
    
  • Execute o script de atualização que criará automaticamente as tabelas de banco de dados necessárias a essa extensão.
  • Yes Pronto – Navegue à página Special:Version em sua wiki para verificar se a instalação da extensão foi bem sucedida.
  • Populate the sites table by running the populateCognateSites.php maintenance script. Sites must already exist in the MediaWiki sites table with the correct groupings.
php ./maintenance/populateCognateSites.php --site-group=wiktionary
  • Populate the page and title tables by running the populateCognatePages.php maintenance script.
php ./maintenance/populateCognatePages.php