Fantastic answers Daniel and Jane! All is crystal clear now. Thank you very much!
Best, Gin On Mon, Apr 24, 2017 at 2:21 PM, Jane Darnell <jane...@gmail.com> wrote: > Though I agree Daniel with what you wrote about redirects, we do have a > policy (I believe I have read this somewhere) that if you create a redirect > in the case of two items about the same thing, then it should always be the > older item number that survives (and the merge gadget is supposed to check > for this). Maybe that's too much detail information though. So for the > given example "Moon" was created first and thus it is "Moon" id that should > survive, whether or not the label is set to "The Moon" later. > > <quote> > > Yes, page IDs survive renaming/moving the page. > > > 2. What if we have page "Moon" with ID=1. Someone creates a second-page > > "The_Moon" with ID=2. Is it possible that page "Moon" is transformed > into a > > redirect? Then, "Moon" would be redirecting to page "The_Moon"? > > Yes, pages can become redirects. > </quote> > > On Mon, Apr 24, 2017 at 2:04 PM, Daniel Kinzler < > daniel.kinz...@wikimedia.de> wrote: > >> Hello Gintautas! >> >> Am 21.04.2017 um 17:58 schrieb Gintautas Sulskus: >> > I have a couple of questions regarding the Wiki Page ID. Does it always >> stay >> > unique for the page, where the page itself is just a placeholder for >> any kind of >> > information that might change over time? >> >> That is indeed the idea. COntent changes, the page ID stays the same. If >> you >> need to identify a specific state of the page, use the revision ID (aka >> permalink). >> >> Note however that page IDs are considered "internal" identifiers. They are >> stable, but they are not the canonical way to access or identify a page. >> Use the >> title for that - or, in the context of Wikidata, use the entity ID. >> >> > Consider the following cases: >> > 1. The first time someone creates page "Moon" it is assigned ID=1. If >> at some >> > point the page is renamed to "The_Moon", the ID=1 remains intact. Is >> this correct? >> >> Yes, page IDs survive renaming/moving the page. >> >> > 2. What if we have page "Moon" with ID=1. Someone creates a second-page >> > "The_Moon" with ID=2. Is it possible that page "Moon" is transformed >> into a >> > redirect? Then, "Moon" would be redirecting to page "The_Moon"? >> >> Yes, pages can become redirects. >> >> > 3. Is it possible for page "Moon" to become a category "Category:Moon" >> with the >> > same ID=1? >> >> Yes, pages can be moved into the category namespace. >> >> -- >> Daniel Kinzler >> Principal Platform Engineer >> >> Wikimedia Deutschland >> Gesellschaft zur Förderung Freien Wissens e.V. >> >> _______________________________________________ >> Wikidata mailing list >> Wikidata@lists.wikimedia.org >> https://lists.wikimedia.org/mailman/listinfo/wikidata >> > > > _______________________________________________ > Wikidata mailing list > Wikidata@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikidata > >
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