Mark, So would each tiddler become like a row in a database table?
And would the columns of that row be colon separated values like a data tiddler? Example: Tiddler Name: $:/data/ShoppingItems/Milk Tiddler content: buyItThisWeek: yes recurringWeeklyItem: yes storeSection: Dairy atSamsClub: yes atLidl: yes And then could you throw together some code to give me a list of all the "data" tiddlers with a prefix of "$:/data/ShoppingItems/" that have a "buyItThisWeek" value of "yes"? And bonus points for having the list sorted by store section. I think that would lay down a nice groundwork for me to build on and use as a pattern as I study the listWidget. Thanks so much if you can! On Monday, March 16, 2020 at 12:49:07 PM UTC-4, Mark S. wrote: > > I think newcomers sometimes gravitate towards the data tiddler, because it > seems familiar. But really, the main data element in TW isn't the data > tiddler, which are pretty limited, but the tiddler themselves. The problem > with using a data tiddler is that it will record a single bit of > information for each item. Like "buy/don't buy". But what if you have one > item that you can get from two different places? Or if you want to indicate > what kind of product it its (produce, hardware, canned, cleaning, etc.) ? > > The best thing to learn is the list widget, and the filters it uses. > > I use a TW grocery list every week. I suppose I should sanitize it and > post a version. I haven't kept it up to 5.1.20 capabilities ... but > sometimes "good enough" is the enemy of "perfect." > > Ok, back to your question. > > Let's say you have a data tiddler like: > > ShoppingSamsClubData > > with > > <https://tiddlywiki.com/#> > Aardvarks: yes > > Kittens: no > Puppies: yes > > Then in a tiddler you can put: > > <$tiddler tiddler="ShoppingSamsClubData"> > <$list filter="[all[current]indexes[]sort[]]" variable=item> > <$checkbox index=<<item>> checked="yes" unchecked="no"/> <<item>><br/> > </$list> > </$tiddler> > > > And it will give you a dynamic list like (you should see a screen shot here): > > > I guess if all you ever want is to shop at Sam's club, then you're good to > go! > > HTH > > On Monday, March 16, 2020 at 7:02:36 AM UTC-7, David wrote: >> >> Summary: >> >> I'd like to have a list of checkboxes, for a grocery list, that pull data >> from a DataTiddler. >> >> >> Detail: >> >> I have items I shop for every week and I thought I'd create a tiddler to >> allow me to uncheck and check items as I shopped. >> >> >> - I'd like the *state *of the checkboxes to be stored somehow, I'm >> not picky where. Simpler may be better. >> - I'd like it to pull the list of items from a *DataTiddler*. I >> think separating the display code from the data would be nice, and I can >> also learn about DataTiddlers at the same time. I'm thinking I don't >> care >> if the state of each checkbox is stored in the DataTiddler or in the >> tiddler with the logic. I guess ideally it would be in the DataTiddler, >> but at this point if it is simpler I don't have to. I have an example >> where the state of each box is stored in the logic tiddler's field, which >> works. >> - If the data could be stored in more of a CSV style, that would be >> nice as well, but not essential. >> >> I've done a good bit of searching on DataTiddlers and indexes and have >> found some help, but not a lot. Here's some code that gives me what I >> want, but obviously I'd rather not have to add more checkbox commands for >> each new item I put in the dataTiddler. I know I can loop over this >> somehow, right? >> >> But I was unable to find how to successfully loop over the keys in a >> Dictionary Tiddler. >> >> This works, but is not dynamic... >> >> <$checkbox field="item1" >> checked='val1'>{{ShoppingSamsClubData##item_01}}</$checkbox> >> <$checkbox field="item2" >> checked='val2'>{{ShoppingSamsClubData##item_02}}</$checkbox> >> >> And here are the contents of the data tiddler.... >> >> item_01: Rice >> item_02: Milk >> >> *type: application/x-tiddler-dictionary* >> >> >> -- 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/d07994bf-3503-4d13-98cb-dc58893cc46b%40googlegroups.com.
