Oooh. Thanks for that. I have also been considering JsonPath syntax ( http://goessner.net/articles/JsonPath/) and this library:
https://www.npmjs.com/package/jsonpath I will have to compare them. Best, Joshua Fontany On Thu, Dec 28, 2017 at 1:59 PM, Evan Balster <balster.e...@gmail.com> wrote: > I strongly recommend riding the coat-tails of an existing convention for > something like this. Specifically, JSON Pointer (RFC 6901) should fit the > bill. It uses a slash delimiter. Here > <https://www.npmjs.com/package/json-pointer> is a widely-used JavaScript > library providing some utility functions for them. > > > On Thursday, 28 December 2017 14:28:00 UTC-6, Joshua Fontany wrote: >> >> That is also the direction I was leaning (text-references and the >> getindex[] filter). >> >> Mahalo (thanks) Evan! Definitely gives me a good place to start. Now to >> think about path syntax.... >> >> Best, >> Joshua Fontany >> >> On Wednesday, December 27, 2017 at 7:17:55 PM UTC-8, Evan Balster wrote: >>> >>> I have to assume that it's just a limitation in how the JSON structure >>> is translated to and from text references. JSON doesn't actually have an >>> "official" addressing scheme for sub-objects, only add-on standards like >>> JSON pointer. TiddlyWiki allows most characters (including dots) in field >>> names. >>> >>> Relevant functions in the TiddlyWiki core code: getTextReference --> >>> extractTiddlerDataItem --> getTiddlerDataCached --> getTiddlerData >>> >>> Looks like internally, the whole JSON structure is parsed, but >>> extractTiddlerDataItem has no rule to look for a delimiter (like ".") and >>> access sub-objects. This bit of code in that function would need to be >>> expanded into something more complicated: >>> >>> if(data && $tw.utils.hop(data,index)) { >>> text = data[index]; >>> } >>> >>> >>> ...So at a glance this looks like it would be a pretty easy "mod" to >>> implement, if you're willing to mess with some core code. >>> >>> On Wednesday, 27 December 2017 13:15:32 UTC-6, Joshua Fontany wrote: >>>> >>>> Hi all you tiddlywiki dev folks, >>>> >>>> I am making progress with my RenderTable widget, but have run into a >>>> situation where I need to add or remove items from arrays listed in JSON >>>> tiddlers. This is so I can add/remove "table rows" when the table is being >>>> fed by "application/json" tiddlers. I have a solution sketched out for >>>> using javascript's array.splice() method, but had a question before I >>>> start. >>>> >>>> *Why can we currently access only the "root level" elements of a JSON >>>> tiddler?* >>>> >>>> Is this a performance or other technical limitation or has a solution >>>> for this just not been created yet? >>>> >>>> Currently, I "flatten" my JSON tiddlers with another plugin I made in >>>> order to simulate storing data as nested objects & arrays. I can then >>>> access the data I want with a "path" key/index. If this "flattening" is >>>> unnecessary, I'd love to be able to work on allowing regular "nested" JSONs >>>> to be used within tiddlywiki. Otherwise, I'll have to work around the >>>> limitation. >>>> >>>> Thank you all for any insight you can provide while I go and read >>>> through the core tiddlers that reference JSON stuff. :D >>>> >>>> Best, >>>> Joshua Fontany >>>> >>> -- > You received this message because you are subscribed to a topic in the > Google Groups "TiddlyWikiDev" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/tiddlywikidev/Cs-lykcn_JE/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > tiddlywikidev+unsubscr...@googlegroups.com. > To post to this group, send email to tiddlywikidev@googlegroups.com. > Visit this group at https://groups.google.com/group/tiddlywikidev. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/tiddlywikidev/3b3591f8-fe52-4d64-be21-6d347c2b7710% > 40googlegroups.com > <https://groups.google.com/d/msgid/tiddlywikidev/3b3591f8-fe52-4d64-be21-6d347c2b7710%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "TiddlyWikiDev" group. To unsubscribe from this group and stop receiving emails from it, send an email to tiddlywikidev+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywikidev@googlegroups.com. Visit this group at https://groups.google.com/group/tiddlywikidev. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywikidev/CAM1fME4%2BgR_Z3GDRqKe3zSEif0cB2ccwWtJsZjhbA7qDEJfRxw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
