[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Mat]

> I have updated:
>
> Hide Tag Buttons @ tb5 
> 
>

Thank you Tobias!

For anyone who doesn't know; This creation of Tobias is independent of the 
other things discussed here and simply let's you control which tags to show 
up in viewmode. For instance, if you style a *specific *tiddler using tags 
 
(something that is otherwise not possible) you can now hide that ugly tag.

<:-)

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[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Tobias Beer]

Hi Mat,
 

> For anyone who doesn't know; This creation of Tobias is independent of the 
> other things discussed here and simply let's you control which tags to show 
> up in viewmode. For instance, if you style a *specific *tiddler using tags 
>  
> (something that is otherwise not possible) you can now hide that ugly tag.
>

Ah, good point. I've added something like your last sentence as an intro to 
Hide 
Tag Buttons @ tb5 . :-)

Best wishes,

Tobias.

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[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Tobias Beer]

Hi Mat, Jed & everyone else... 

>  
>
>> In combination with our solution for hiding tags 
>> , this should open 
>> up for a totally different way of using tags.
>
>
> Thanks for pointing to this example.
> At some point (perhaps with the core update)
> the template must have gotten swallowed.
> Will fix.
>

I have updated:

Hide Tag Buttons @ tb5 

   - fixed the example for hiding tags
   - improved the template mechanism being used
  - now uses a more flexible *subFilter* expression to hide unwanted 
  tags from view
   
Best wishes,

Tobias.

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[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Mat]

@Tobias - what a fast reply, fantastic! 


True, but for the rest of us it is important to understand why you want to 
> do the things you want to do.
>

I'm experimenting and kind of felt the context is both a bit too big for 
the question but mostly that it would take over the question. Buuut, since 
you ask, I'll describe it below especially since it's concerning something 
I know you also care about.
 

Here's one way using tobibeer/filter 
> :
>

Great! that does work. So, TW does not have enough core features for this, 
right?


Ok, here's the  context:

It concerns typed tags, tag categories, semantic tagging - pick your 
poison. We (I and you and surely many others) have long played around with 
the idea of taking advantage of fields "name:value" pair to replace tags 
and to instead use fiels as *tagtype:tagname.*

At least that is how I have envisioned it until an hour ago... when it 
struck me that maybe I have it backwards! It should be *tagname:tagtype*

Possibly obvious to others, I don't know. Anyway, it seems obvious now - 
one only uses a tag once in a tiddler, thus it must be the unique field 
name- but you should be able to use tags of the same type multiple times in 
a tiddler, thus the field value. 

A drawback is that field names, i.e what woudl be displayed on the tagpill, 
ehm *fieldpill*, is limited lowercase etc...  j.k_rowling:Author (On the 
other hand, the tag types can be pretty).

A more serious drawback is what you and I touched on the other day; There 
is currently no way to substring search field names. Thus searching for 
"rowling" doesn't currently work, if I understood you right. (Searching for 
the full j.k_rowling or author should work though as you showed me, even 
"auth", right?)

A niciety, when I use your filter, is that it even works to set the field 
value to be the string "tag" ! So, I figure one could have an "add field" 
feature up where the tags field currently resides and with the default 
field value (i.e the "type" for the supposed tag) set to be the string 
"tag", but changeable into anything of course (like "author" or "pupil").

I'm sure there are problems with this whole approach, but on the other hand 
it doesn't change any existing infrastructure. The tags field can still be 
around, it just wouldnt' be used, or it could be used in parallel. Maybe 
even practicing a distinction between tags vs categories 
,
 
i.e dedicating the tags field to one thing and fieldtags to the other.

@Tobias - but also anyone

Please come with input on these thoughts. 

<:-)

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[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Jed Carty]

Before Tobias made his filter plugin I tried for a while to get a wikitext 
solution to this. It is a difficult task and may not be possible using only 
wikitext. All the solutions I managed would repeat the returned values 
multiple times. Hopefully that can save you some time if you were hoping to 
make a wikitext solution.

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[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Mat]

@Jed - good to know. Yes, I did fiddle around with existing filter 
operators but kind of had a feeling it might not work based on some prevous 
discussions so had to post. Glad I did.

<:-)

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[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Tobias Beer]

Hi Mat,
 

> It concerns typed tags, tag categories, semantic tagging - pick your 
> poison. We (I and you and surely many others) have long played around with 
> the idea of taking advantage of fields "name:value" pair to replace tags 
> and to instead use fiels as *tagtype:tagname.*
>
> At least that is how I have envisioned it until an hour ago... when it 
> struck me that maybe I have it backwards! It should be *tagname:tagtype*
>

Quite true, I think... and actually entirely doable just using what we have 
already. It should be somewhat simple to construct a filter that says "give 
me all tiddlers that have a tag prefixed *author:*" ...and then 
display a list of those tiddlers whereas "anything" would actually point to 
another tiddler, namely that of the author.

So, while one could use fields for that, using tagging has the charm that 
we could very much so have a custom tag-template that takes such a semantic 
field, splits it up into its components and then "author" becomes a tagpill 
as well as whatever the tag-value for author is, too. However, this would 
introduce a new form of "tagging"... what I mean is that we'd not do 
*[all[current]tagging[]]* but rather 
*[all[current]prefix[author:]tagging[]]* to fetch all tiddlers that have 
the current tiddler (being a tiddler corresponding to an author) as a 
semantic "author-tag".

So, we actually have a host of modeling options at hand here:

   1. use an "author" field as a single-value field
   2. use an "authors" field as a list-field
   3. use tags via the *author:* prefix
   4. if you want all author data externalize: use a data tiddler, perhaps 
   *Authors* whereas
  - key=tiddler => value=author(s) ...depending on whether you intend 
  that as a value or a single title
  
Best wishes,

Tobias.

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[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Tobias Beer]

Hi Mat,
 

> Title says it all:
>

True, but for the rest of us it is important to understand why you want to 
do the things you want to do.

How do I filter out the field names where the value is Foo?


Here's one way using tobibeer/filter 
:

<$vars get="[all[tiddlers]field:%inputTitle%[foo]]">

{{{ [fields[]filter:$]}}}
 

Best wishes,

Tobias.

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[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Tobias Beer]

Hi again, Mat,

So, here's how you get all tiddlers having semantic author tags:

{{{ [tags[]prefix[author:]tagging[]] }}}

Here's how you'd tiddlers with their semantically tagged authors:


<$list filter="[tags[]prefix[author:]tagging[]sort[title]]">

<$link><$view field="title"/>
<>




And here listing "publications" for each semantically tagged author:


<$list filter="[tags[]removeprefix[author:]]">

<$link><$view field="title"/>
<>




And none of that needed any tobibeer/filter 
.

Best wishes,

Tobias.

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[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Tobias Beer]

Hi Mat,

Hope it's all useful. ;-) 
 

> In combination with our solution for hiding tags 
> , this should open 
> up for a totally different way of using tags.


Thanks for pointing to this example.
At some point (perhaps with the core update)
the template must have gotten swallowed.
Will fix.

Best wishes,

Tobias.

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[tw] Re: [TW5] Filter question: Get all field names where value is Foo

[Mat]

Tobias... you're seriously impressive.

I must investigate your solution and think over your list of alternative 
approaches properly. This will take some time for me but as you might know, 
the lack of typed tags has been a big obstacle for me for many years so 
this can be a big... well, obstacle remover ;-)

In combination with our solution for hiding tags 
, this should open up 
for a totally different way of using tags.

Thank you! 

<:-)


On Tuesday, January 12, 2016 at 11:21:25 PM UTC+1, Tobias Beer wrote:
>
> Hi again, Mat,
>
> So, here's how you get all tiddlers having semantic author tags:
>
> {{{ [tags[]prefix[author:]tagging[]] }}}
>
> Here's how you'd tiddlers with their semantically tagged authors:
>
> 
> <$list filter="[tags[]prefix[author:]tagging[]sort[title]]">
> 
> <$link><$view field="title"/>
> <>
> 
> 
> 
>
> And here listing "publications" for each semantically tagged author:
>
> 
> <$list filter="[tags[]removeprefix[author:]]">
> 
> <$link><$view field="title"/>
> <>
> 
> 
> 
>
> And none of that needed any tobibeer/filter 
> .
>
> Best wishes,
>
> Tobias.
>

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[tw] Re: [TW5] filter question

[Stephan Hradek]

I think, we already had this several times…

$list filter=[is[current]tagging[]]


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[tw] Re: [TW5] filter question

[James Anderson]

thank you!

i think i wasn't searching for the right terms

On Tuesday, 7 January 2014 08:39:09 UTC, Stephan Hradek wrote:

 I think, we already had this several times…

 $list filter=[is[current]tagging[]]




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