Yes, but I need a plain URL, not an image link, so wouldn't be able to use <$image ...
On Sunday, January 3, 2021 at 9:08:08 AM UTC-6 [email protected] wrote: > The last example does that, it falls back to an entirely different URL if > no ISBN fields exist. > > On Sunday, January 3, 2021 at 3:59:03 PM UTC+1 [email protected] wrote: > >> This looks nice! It appears to put all the right code in the right place. >> Now if only librarything servers would quit dying on me... >> >> Are there any other widgets with :filter and :else options that I could >> use to do something similar w/ a link? Specifically, use isbn or isbn13 in >> link, but if they don't exist show this *other* link? I've been using [ext[ >> link format, but need to do some if/then... >> >> On Sunday, January 3, 2021 at 8:38:38 AM UTC-6 [email protected] wrote: >> >>> Here is an example on falling back to the generic image if no ISBN >>> fields are defined >>> >>> \define makeimg() >>> <$vars isbn={{{[{!!isbn}!is[blank]else{!!isbn13}]}}}> >>> <$image source={{{ [[ >>> http://covers.librarything.com/devkey/dev-key-goes-here/medium/isbn/]addsuffix<isbn>] >>> >>> :filter[<isbn>!is[blank]] :else[[generic image URL]] }}}/> >>> </$vars> >>> \end >>> >>> <<makeimg>> >>> >> -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/d3ee0681-8648-4dc9-844f-f956181bcb6an%40googlegroups.com.
