Configure '$:/config/FileSystemPaths' to save to a folder based on a field

[Sininho Sininho]

Hello! 

I am using TiddlyWiki under node.js (more specifically, TiddlyServer), and I want to find a way to save the new tiddlers to folders named in a field. 

I have a wiki where the tiddlers have a field "saveto". I've tried to add a line to the file '$:/config/FileSystemPaths' to prefix the name of the tiddler with the value of the "saveto" field. For example, the tiddler

created: 20200114160408003
modified: 20200114160440095
saveto: test
tags: 
title: New Tiddler
type: text/vnd.tiddlywiki

should be saved at test/New Tiddler.tid

Is it possible? I don't know much about filters, but I tried the following line and it did not work:

 [has[saveto]addprefix[/]addprefix{!!saveto}]

I am thankful for any help!

[TonyM]

Quick tip

Use get rather than has if you want the value in the field.

Tony

[Jeremy Ruston]

Hi Sininho

should be saved at test/New Tiddler.tid

Is it possible? I don't know much about filters, but I tried the following line and it did not work:

 [has[saveto]addprefix[/]addprefix{!!saveto}]

I am thankful for any help!

The catch is the the variable “currentTiddler” is not set during the evaluation of the filters in $:/config/FileSystemPaths, so it is not possible to use the {!!saveto}} construction, which implicitly uses the “currentTiddler" variable.

Instead, as Tony hinted, you may be able to use something like:

[has[saveto]get[saveto]addprefix[/]]

Best wishes

Jeremy

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[Sininho Sininho]

Thank you Jeremy and Tony for the prompt response!

Unfortunately, the proposed solution did not work. In the server window I found these lines: 

Sync error while processing 'New Tiddler':
Error: EACCES: permission denied, open '/test.tid'

which leads me to believe that it is is trying to save it to '/test.tid' instead of 'test/New Tidler.tid'. The tiddler did not get saved at all. 

Thank you again!

On Wednesday, January 22, 2020 at 3:04:15 PM UTC+1, Jeremy Ruston wrote:

Hi Sininho

should be saved at test/New Tiddler.tid

Is it possible? I don't know much about filters, but I tried the following line and it did not work:

 [has[saveto]addprefix[/]addprefix{!!saveto}]

I am thankful for any help!

The catch is the the variable “currentTiddler” is not set during the evaluation of the filters in $:/config/FileSystemPaths, so it is not possible to use the {!!saveto}} construction, which implicitly uses the “currentTiddler" variable.

Instead, as Tony hinted, you may be able to use something like:

[has[saveto]get[saveto]addprefix[/]]

Best wishes

Jeremy

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[Jeremy Ruston]

Hi Sininho

Thank you Jeremy and Tony for the prompt response!

Unfortunately, the proposed solution did not work. In the server window I found these lines: 

Apologies. Let’s try again:

[has[saveto]get[saveto]] [get[title]] +[join[/]]

Good luck!

Best wishes

Jeremy

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[Sininho Sininho]

That worked! :-) 

Thank you a lot and have a good day! :-)

Hi Sininho

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