I found a set of applications that would benefit from the ability to build a single filter from one or more filters. However I want one or more additional filters selectively added. Has anyone faced this challenge them self and can share any code patterns you came up with? For example We have a…

One answer is subfilter. You may start with a minimum demo wikitext here and lets try it in tiddlywiki.com !

i believe you could also use a :cascade and have those checkboxes / UI items toggle a tag on tiddlers containing their corresponding filters? then you could do e.g [all[]tag[tagname]] :cascade[tag[theFilters]] if I understand cascade correctly, that should apply all the filters in the text fields …

Here’s the way I did it. I’m not claiming that it’s the most efficient, but it does the trick. filter="[all[tiddlers]subfilter{$:/state/subfilter}] :filter[{$:/state/modifiers!!rrmod}!match[]then{!!title}search:rrfield,BarnesInfo:some{$:/state/modifiers!!rrmod}search:statefiled{$:/state/modifiers!!…

I seem to recall a discussion on GitHub about building a Filter Building UI thingy. I didn’t bookmark it, unfortunately. :confused: @Mark_S ? @saqimtiaz ? @Mohammad ?

https://keatonlao.github.io/tiddlywiki-xp/#%24%3A%2FFilterBuilder Something like this?

Hi @CodaCoder Yes, there was a discussion in old forum. Then @ericshulman created a nice power search UI. Have a look at FilterGenerators — TiddlyTools: “Small Tools for Big Ideas!” ™

Thanks, but that’s not the topic I was thinking of.

Thanks Eric, I will have a look for your code patterns in use, but rather than a general interactive solution I want to build a specific interactive solution. The key desire is to modify the filter(s) used in a single list widget. I am trying to get a code pattern that can be used by the community…

This reminds me of an idea that I posted here : a filter “extension” for the list widget. In your case, you could store a the extension in a macro/tiddler/field and append it in the original filter expression.

Talk TW

Building a single filter from multiple filters

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