Dix, Since you mentioned it I had a look at LibraryThing, and started cataloguing my books found in different locations "Rooms, shelves" since the ISBN scanner is easy to use.
Have you exported LibraryThing data? Eventually I may move this data into tiddlywiki. I am, off to our "shack in the bush" where I am am keen to record what is there, but in time I would like to make my own "little library" application on tiddlywiki, so I can keep track of books moving between locations, needing reading and lending to friends. The apps out there never quite focus on what I want. I have in the past use plugins and macros to link ISBN's to books and their metadata in tiddlywiki. Perhaps we should start a subject specific thread for libraries in TiddlyWiki. Regards Tones On Tuesday, 5 January 2021 at 01:15:34 UTC+11 [email protected] wrote: > Thanks, but I've moved my book collection back online to LibraryThings. > > On Monday, January 4, 2021 at 5:10:46 AM UTC-6 amreus wrote: > >> Hopefully this is helpful. I also find the syntax arcane and still >> struggle with constructing code like the following. >> >> \define makeimg() >> <$vars >> imgurl="http://covers.librarything.com/devkey/dev-key/medium/isbn/"; >> fallback="[[Normal Link|http://google.com]]"; >> isbn={{{[{!!isbn}!is[blank]else{!!isbn13}]}}} >> > >> <$list filter=<<isbn>> emptyMessage=<<fallback>>> >> <$image source={{{[<imgurl>addsuffix<isbn>]}}}/> >> </$list> >> </$vars> >> \end >> >> <<makeimg>> >> >> >> On Sunday, January 3, 2021 at 2:39:18 PM UTC-5 [email protected] wrote: >> >>> Thank you very much for your help! >>> >>> I guess I need to give up on this particular idea. There are only so >>> many hours I can spend struggling with something like this before I am >>> simply ready to ditch TiddlyWiki altogether. I really struggle with the >>> syntax. Depending on the context, I may need one, two or three curly >>> braces, or maybe '<' - or maybe '<<' - and I can't find any rhyme or reason >>> for these contexts. The documents seem to be written for someone familiar >>> with multiple programming languages. That's not me. >>> >>> I just need a simple if/then/else and that seems to require a lot of >>> strange workarounds. I guess I'll look for that elsewhere... >>> >>> On Sunday, January 3, 2021 at 11:20:57 AM UTC-6 [email protected] >>> wrote: >>> >>>> Wrap the image part in a <$list> widget that tests whether isbn is >>>> blank. You can use the emptyMessage attribute to show the plain URL >>>> instead >>>> when there is no isbn. >>>> >>>> On Sunday, January 3, 2021 at 4:10:44 PM UTC+1 [email protected] wrote: >>>> >>>>> 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/8c66dbd2-e8d9-4732-bf43-a57011952b85n%40googlegroups.com.
