Extensão:Cognate

Manual de extensões do MediaWiki

Cognate Estado da versão: estável
Implementação	Banco de dados
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	Snapshots releases along with MediaWiki. Master is not backward compatible.
MediaWiki	1.29+
Modifica o banco de dados	Sim
Tabelas	cognate_sites cognate_pages cognate_titles
Licença	GNU GPL (Licença Pública Geral) 2.0 ou superior
Download	Baixar extensão Git [?]: Baixar master do Git navegar pelo repositório (GitHub) histórico de commits contribuidores do repositório (GitHub) revisão de código
Parâmetros $wgCognateNamespaces $wgCognateReadOnly
Hooks usados ArticleUndelete ContentAlterParserOutput LoadExtensionSchemaUpdates PageMoveComplete PageSaveComplete WikiPageDeletionUpdates
Quarterly downloads	1 (Ranked 135th)
Para traduzir a extensão Cognate, verifique sua disponibilidade no translatewiki.net
Problemas	Tarefas em aberto · Relatar um bug

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

The extension can be tested on beta wiktionary sites:

• https://en.wiktionary.beta.wmflabs.org/wiki/Wiktionary:Main_Page
• https://de.wiktionary.beta.wmflabs.org/wiki/Hauptseite
• https://he.wiktionary.beta.wmflabs.org/wiki/%D7%A2%D7%9E%D7%95%D7%93_%D7%A8%D7%90%D7%A9%D7%99

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/.
  Developers and code contributors should install the extension from Git instead, using:cd extensions/
git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/Cognate
• 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.
•  Concluído – 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