Difference between revisions of "Style/Relationships/URLs"

From MusicBrainz Wiki
(Which relationship types to use)
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This page outlines general guidelines for adding relationships which link an entity to a URL. Many relationships also have their own guidelines which, should they conflict, supersede the ones on this page.
 
This page outlines general guidelines for adding relationships which link an entity to a URL. Many relationships also have their own guidelines which, should they conflict, supersede the ones on this page.
  
= Which URLs are allowed? =
+
== Which URLs are allowed? ==
  
==Multiple URLs for the same relationship type==
+
===Multiple URLs for the same relationship type===
  
 
In general, any relevant URLs can be added, there is no technical limit to the number which can be added. However, some relationship types can potentially have hundreds of valid links and you should not try to link to every possible site in these cases.
 
In general, any relevant URLs can be added, there is no technical limit to the number which can be added. However, some relationship types can potentially have hundreds of valid links and you should not try to link to every possible site in these cases.
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* [[Image_Relationship_Type|Images]] and [[Logo_Relationship_Type|logos]]: Don't link to the same image on multiple hosts. 【second point on [[Image_Relationship_Type]]】
 
* [[Image_Relationship_Type|Images]] and [[Logo_Relationship_Type|logos]]: Don't link to the same image on multiple hosts. 【second point on [[Image_Relationship_Type]]】
  
== Restricted pages ==
+
=== Restricted pages ===
  
 
Pages do not have to be completely open, as long as it is accessible to the general internet population. Password-protected sites are frowned upon, but if the page is really worth linking to, so long as the website allows free registration, the link is allowed. 【second point on [[:Category:External_Information_Relationship_Class]]】
 
Pages do not have to be completely open, as long as it is accessible to the general internet population. Password-protected sites are frowned upon, but if the page is really worth linking to, so long as the website allows free registration, the link is allowed. 【second point on [[:Category:External_Information_Relationship_Class]]】
  
== When not to link ==
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=== When not to link ===
  
 
Some sites discourage systematic linking. Please do not add links if it would be counter to the wishes of the other site. 【first point on [[Discography_Relationship_Type]]】
 
Some sites discourage systematic linking. Please do not add links if it would be counter to the wishes of the other site. 【first point on [[Discography_Relationship_Type]]】
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# Derivative works such as mash-ups or unauthorized remixes (a well-known example of this is Danger Mouse's "The Grey Album").
 
# Derivative works such as mash-ups or unauthorized remixes (a well-known example of this is Danger Mouse's "The Grey Album").
  
= Which URL to use =
+
== Which URL to use ==
  
 
Many sites have multiple pages, so there may be several URLs which would work. URLs which are simple and unlikely to change are preferred.【first point on [[Online_Community_Relationship_Type]]】Avoid linking to websites' search pages. 【generic version of the bit in the cd baby section of [[What_Not_To_Link_To]]】 The URL should still be specific to the entity being linked, so please do not link to top level domains when a site has information about numerous artists, releases, etc. 【from the bottom of [[What_Not_To_Link_To]], also [[:Category:External_Resource_Relationship_Class]]... not happy with the wording though】
 
Many sites have multiple pages, so there may be several URLs which would work. URLs which are simple and unlikely to change are preferred.【first point on [[Online_Community_Relationship_Type]]】Avoid linking to websites' search pages. 【generic version of the bit in the cd baby section of [[What_Not_To_Link_To]]】 The URL should still be specific to the entity being linked, so please do not link to top level domains when a site has information about numerous artists, releases, etc. 【from the bottom of [[What_Not_To_Link_To]], also [[:Category:External_Resource_Relationship_Class]]... not happy with the wording though】
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* The Amazon URL for [[release:963b0e2e-d6cb-4482-a600-0ad167e5bff2|With Teeth]] is <nowiki>http://www.amazon.com/gp/product/B0008ISM40</nowiki> ('''not''' <nowiki>http://www.amazon.com/</nowiki> because Amazon sells lots of different releases)
 
* The Amazon URL for [[release:963b0e2e-d6cb-4482-a600-0ad167e5bff2|With Teeth]] is <nowiki>http://www.amazon.com/gp/product/B0008ISM40</nowiki> ('''not''' <nowiki>http://www.amazon.com/</nowiki> because Amazon sells lots of different releases)
  
==Linking to images==
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===Linking to images===
  
 
When linking to images, link directly to image files, not to pages containing pictures. 【third point on [[Image_Relationship_Type]]】 The exception to this is when using the [[Has_Cover_Art_At_Relationship_Type|cover art relationship]] to link to CD Baby or Jamendo, these are handled specially and should link to the release page. 【new based on how the server handles those】
 
When linking to images, link directly to image files, not to pages containing pictures. 【third point on [[Image_Relationship_Type]]】 The exception to this is when using the [[Has_Cover_Art_At_Relationship_Type|cover art relationship]] to link to CD Baby or Jamendo, these are handled specially and should link to the release page. 【new based on how the server handles those】
  
==Linking to pages where you can get music==
+
===Linking to pages where you can get music===
  
 
The URL should also be as close as possible to a direct link to just the specific entity which is being linked. 【partly from [[:Category:Get_Music_Relationship_Class]] ... but does this mean link to the page or the actual download?】
 
The URL should also be as close as possible to a direct link to just the specific entity which is being linked. 【partly from [[:Category:Get_Music_Relationship_Class]] ... but does this mean link to the page or the actual download?】
  
==Standardised URLs==
+
===Standardised URLs===
 
For many sites, we use a standardised URL format. In most cases, the URL will be automatically formatted correctly.
 
For many sites, we use a standardised URL format. In most cases, the URL will be automatically formatted correctly.
  
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|}
 
|}
  
= Which entity to link to =
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== Which entity to link to ==
  
 
The URL should be linked to the most appropriate entity.【first point on [[Fanpage_Relationship_Type]]】
 
The URL should be linked to the most appropriate entity.【first point on [[Fanpage_Relationship_Type]]】
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* <nowiki>http://www.metallica.com/</nowiki> is not the official homepage of [[artist:e2190b35-1181-44f6-8587-4c04123a6f30|Lars Ulrich]]. The site is for the group, not the specific person.
 
* <nowiki>http://www.metallica.com/</nowiki> is not the official homepage of [[artist:e2190b35-1181-44f6-8587-4c04123a6f30|Lars Ulrich]]. The site is for the group, not the specific person.
  
=Which relationship types to use=
+
==Which relationship types to use==
  
 
The relationship type used should be the one which most closely matches. If there is a specific relationship type for the site, that relationship type should be used instead of generic types.
 
The relationship type used should be the one which most closely matches. If there is a specific relationship type for the site, that relationship type should be used instead of generic types.
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* A page on Amazon should use the Amazon relationship type rather than [[Has_Cover_Art_At_Relationship_Type|cover art]] or [[Discography_Relationship_Type|discography]] relationship types.
 
* A page on Amazon should use the Amazon relationship type rather than [[Has_Cover_Art_At_Relationship_Type|cover art]] or [[Discography_Relationship_Type|discography]] relationship types.
  
=Restricted relationships=
+
==Restricted relationships==
  
 
For some of our relationships, only certain sites are permitted. For these, links to sites which are not on the whitelist '''must not''' be added.
 
For some of our relationships, only certain sites are permitted. For these, links to sites which are not on the whitelist '''must not''' be added.

Revision as of 09:32, 14 May 2011

Status: This is an official style guideline.

This page outlines general guidelines for adding relationships which link an entity to a URL. Many relationships also have their own guidelines which, should they conflict, supersede the ones on this page.

Which URLs are allowed?

Multiple URLs for the same relationship type

In general, any relevant URLs can be added, there is no technical limit to the number which can be added. However, some relationship types can potentially have hundreds of valid links and you should not try to link to every possible site in these cases.

Some examples of how this applies to different relationship types:

  • Fan pages: pick the ones that are most useful as a resource for MusicBrainz users and avoid sites whose unique content is only a few obscure bits and pieces. 【second point on Fanpage_Relationship_Type
  • Mail order and download relationships: Don't try to link widely available releases to every online store. The mail order and download relationships are most useful when a release is only available from particular stores. 【from the last section of What_Not_To_Link_To even though it's not official】
  • Wikipedia: Only link to the languages which are relevant to the artist. This usually means the artist's native language(s). The English Wikipedia is always allowed. 【new based on current unwritten consensus】

Restricted pages

Pages do not have to be completely open, as long as it is accessible to the general internet population. Password-protected sites are frowned upon, but if the page is really worth linking to, so long as the website allows free registration, the link is allowed. 【second point on Category:External_Information_Relationship_Class

When not to link

Some sites discourage systematic linking. Please do not add links if it would be counter to the wishes of the other site. 【first point on Discography_Relationship_Type

When linking to a page where you can download, stream or get music via mail-order, the page must respect copyright law. Do NOT link to pages which contain pirated material. There are two exceptions to this guideline:

  1. Bootleg recordings of concerts.
  2. Derivative works such as mash-ups or unauthorized remixes (a well-known example of this is Danger Mouse's "The Grey Album").

Which URL to use

Many sites have multiple pages, so there may be several URLs which would work. URLs which are simple and unlikely to change are preferred.【first point on Online_Community_Relationship_Type】Avoid linking to websites' search pages. 【generic version of the bit in the cd baby section of What_Not_To_Link_To】 The URL should still be specific to the entity being linked, so please do not link to top level domains when a site has information about numerous artists, releases, etc. 【from the bottom of What_Not_To_Link_To, also Category:External_Resource_Relationship_Class... not happy with the wording though】

Examples
  • The official homepage for Nine Inch Nails is http://nin.com/ (not http://nin.com/index.php, as that is more likely to change)
  • The Wikipedia page for George Harrison is http://en.wikipedia.org/wiki/George_Harrison (not http://www.wikipedia.org/, because Wikipedia contains information about numerous different things)
  • The Amazon URL for With Teeth is http://www.amazon.com/gp/product/B0008ISM40 (not http://www.amazon.com/ because Amazon sells lots of different releases)

Linking to images

When linking to images, link directly to image files, not to pages containing pictures. 【third point on Image_Relationship_Type】 The exception to this is when using the cover art relationship to link to CD Baby or Jamendo, these are handled specially and should link to the release page. 【new based on how the server handles those】

Linking to pages where you can get music

The URL should also be as close as possible to a direct link to just the specific entity which is being linked. 【partly from Category:Get_Music_Relationship_Class ... but does this mean link to the page or the actual download?】

Standardised URLs

For many sites, we use a standardised URL format. In most cases, the URL will be automatically formatted correctly.

List of standardised URLs
  • Amazon:
    • Canada: http://www.amazon.ca/gp/product/<ASIN>
    • France: http://www.amazon.fr/gp/product/<ASIN>
    • Germany: http://www.amazon.de/gp/product/<ASIN>
    • Italy: http://www.amazon.it/gp/product/<ASIN>
    • Japan: http://www.amazon.co.jp/gp/product/<ASIN>
    • UK: http://www.amazon.co.uk/gp/product/<ASIN>
    • USA: http://www.amazon.com/gp/product/<ASIN>
  • Discogs:
    • Artists: http://www.discogs.com/artist/<name>
    • Labels: http://www.discogs.com/label/<name>
    • Release groups: http://www.discogs.com/master/<ID>
    • Releases: http://www.discogs.com/release/<ID>
  • IMDb:
    • Artists: http://www.imdb.com/artist/<ID>/ (not http://www.imdb.com/artist/<ID>/bio)
    • Release groups: http://www.imdb.com/title/<ID>/ (not http://www.imdb.com/title/<ID>/soundtrack)
  • MySpace: http://www.myspace.com/<username> or http://www.myspace.com/<profile number>
  • PureVolume: http://www.purevolume.com/<name>
  • Wikipedia: http://<language>.wikipedia.org/wiki/<page name>
  • YouTube: http://www.youtube.com/user/<username>

Which entity to link to

The URL should be linked to the most appropriate entity.【first point on Fanpage_Relationship_Type

Examples
  • http://www.amazon.com/gp/product/B0008ISM40 is linked to With Teeth and not Nine Inch Nails. The URL is a purchase page for a specific release and not for the artist in general.
  • http://www.metallica.com/ is not the official homepage of Lars Ulrich. The site is for the group, not the specific person.

Which relationship types to use

The relationship type used should be the one which most closely matches. If there is a specific relationship type for the site, that relationship type should be used instead of generic types.

Examples
  • An article on Wikipedia should be linked using the Wikipedia relationship type and not the biography relationship type.
  • A page on Amazon should use the Amazon relationship type rather than cover art or discography relationship types.

Restricted relationships

For some of our relationships, only certain sites are permitted. For these, links to sites which are not on the whitelist must not be added. These relationships are: