Bob, If the tiddlers title is unique it could be as simple as artworkname, artworkname 1 ...
However if you set the caption, captions need not be unique. They show in lists. In your source example I could only see a one to many relationship. Truth is tags are good at this, but I too try not to use them so as to not pollute the tag space and leave them for as needed relationships. Mario published a gen tags, or alt tags plugin that allows additional tags like fields that are helpful in cases like this. But you can effectivly craft you own, the listops functions help with this. Regards Tones On Tuesday, 15 September 2020 00:06:07 UTC+10, Dr Bob Jansen wrote: > > Felicia > > Thank you for your detailed reply. I will study it in the morning and make > sure I follow what you are saying. > > BobJ > > --------------- > > Dr Bob Jansen > > The Cultural Conversations project > > Turtle Lane Studios Pty Ltd trading as the Australian Centre for Oral History > > 122 Cameron St, Rockdale NSW 2216, Australia > > Ph (Korea): +82 10-4494-0328 > > Ph (Australia) +61 414 297 448 > > Resume: http://au.linkedin.com/in/bobjan > > Skype: bobjtls > > KakaoTalk: bobjtls > > http://www.cultconv.com > > > In line with the Australian anti-spam legislation, if you wish to receive no > further email from me, please send me an email with the subject "No Spam" > > > On 14 Sep 2020, at 22:39, Felicia Crow <[email protected] <javascript:>> > wrote: > > Hi, > so to extend Jed's solution I assume three things: Each tiddler for a > person has a buyer-id field, each tiddler for an artwork has an artwork-id > field and each person tiddler has an bought-artwork field that contains a > space separated list of artwork-ids. If the artwork ids don't contain > spaces themselves it is enough to just write the id otherwise you have to > wrap the id in double square brackets like a link. Basically looking like > what Jed had in his answer for the artwork names, but with your ids instead. > > To show what artworks a person has bought you would use this triple list - > probably preferably in a macro with the buyer-id being a macro parameter - > to set the buyer-id, get the list of bought artwork and list out the > artwork titles: > <$list filter="[!has[draft.of]field:buyer-id[specific_id_here]]"> > <$list filter="[list[!!bought-artwork]sort[title]]" variable="artwork-id"> > <$list filter="[!has[draft.of]field:artwork-id<artwork-id>]"> > <<currentTiddler>> > </$list> > </$list> > </$list> > > The outer most list just sets the currentTiddler to that of the person > having this specific id as the list operator only works with either fixed > references or the currentTiddler. > The next list takes the content of the bought-artwork field and turns it > into an actual list of (pseudo) tiddlers. While the field passed to sort is > title due to how things work, it actually essentially sorts by id. Setting > the result to a variable in this step isn't essential, but may helps to > make the readabilty of the next filter better. > The inner most list finally takes each id one after the other and looks > for a tiddler that has a field artwork-id with the same value as the > artwork-id it currently processes. If it finds such a tiddler it displays > it. > > In the other direction you would have this far smaller one list - once > again could be put in a macro, just this time with the art-id being a > parameter: > <$list filter="[!has[draft.of] > has[buyer-id]contains:bought-artwork[specific_id_here]]"> > <<currentTiddler>> > </$list> > > The filter here gets every tiddler that has a field buyer-id and then > looks up for every one of them if the bought-artwork field contains the > artwork-id. > > Hope this helps! > > Kind Regards, > Felicia > > > On Monday, 14 September 2020 13:32:07 UTC+2, Bob Jansen wrote: >> >> Jed >> >> Thanks for your email >> >> I can’t use titles as they can not be guaranteed to be unique. That’s why >> every tiddler has a unique id. >> >> I was thinking about a filed in the name riddler with the ids of the >> artworks but then how to display the titles? >> >> Bobj >> >> Dr. Bob Jansen >> 122 Cameron St, Rockdale NSW 2216, Australia >> Ph: +61 414 297 448 >> Skype: bobjtls >> >> >> On 14 Sep 2020, at 21:15, Jed Carty <[email protected]> wrote: >> >> Do these relations need to be bi-directional? That makes things difficult >> enough that I made a plugin for it >> https://ooktech-tw.gitlab.io/plugins/relations/ >> >> if it only needs to go person -> artwork the easiest way is to use a list >> field in the persons tiddler that lists each artwork associated with them. >> >> So in the tiddler for Person A you create a field called list >> In the field you put in the title for each artwork to associate with the >> person, it would look something like this: >> >> [[La Joconde]] Sphinx [[Elvis on Black Velvet]] >> >> then to list the artwork associated with a person in the tiddler for that >> person you could use >> >> <$list filter='[list[]]'> >> >> >> </$list> >> >> >> or to list the artwork associated with Person A in any tiddler you would >> use >> >> <$list filter='[list[Person A]]'> >> >> >> </$list> >> >> there are other methods, using a data tiddler could also be a good choice >> but that may require more work to set up. >> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "TiddlyWiki" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/tiddlywiki/6I60ywWH5Fo/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/tiddlywiki/94bf5445-6dfe-447b-864c-ac220aab8437o%40googlegroups.com >> >> <https://groups.google.com/d/msgid/tiddlywiki/94bf5445-6dfe-447b-864c-ac220aab8437o%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> >> -- > You received this message because you are subscribed to a topic in the > Google Groups "TiddlyWiki" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/tiddlywiki/6I60ywWH5Fo/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected] <javascript:>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tiddlywiki/2da4b35d-c3ed-478d-8149-1fa7960d7bf6o%40googlegroups.com > > <https://groups.google.com/d/msgid/tiddlywiki/2da4b35d-c3ed-478d-8149-1fa7960d7bf6o%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. 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