Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
That code looks nice and clean, and might do everything Antaeus wants ...
EXCEPT that it can't (or at least I don't think it can) be used inside a
button the way he wants.
The solution is to rewrite the javascript code so that it accepts values
from <$set> variables outside instead of parameters.
Someone could eliminate the parameters and instead put these lines just
inside the run() function:
var format = this.getVariable("format") ;
var delay = this.getVariable("delay") ;
var ts = this.getVariable("ts") ;
I haven't tried it though. If anyone tries this, they should be sure to
back up their TW. A single mistake can cause the red-block-of-javascript
doom to pop up.
Mark
On Tuesday, October 6, 2015 at 9:58:14 PM UTC-7, Andrew wrote:
>
> How about
> http://t5a.tiddlyspot.com/#%24%3A%2Fplugin%2Fajh%2Ftiddlytime%2FDateTime.js
>
> Happy Connecting. Sent from my Sprint Samsung Galaxy S® 5
>
>
> Original message
> From: Antaeus Feldspar >
> Date: 10/06/2015 7:13 PM (GMT-07:00)
> To: TiddlyWiki >
> Subject: Re: [tw] [TW5] How to create a button that replaces a field value
> based on the current field value?
>
> Actually, perhaps I should share what my macro will do - I went looking to
> see if there was an existing plugin that handled such things, and didn't
> find one, but that could be just because I wasn't looking in the right
> places.
>
> My macro will take a 17-character string as used in a Date field as its
> first parameter, and as its second, a string indicating an amount of time
> to increment it ("1d", for instance, would be one day.) It will calculate
> and return the incremented date. With being able to read, modify, and
> write back a date values, I can create easy "reschedule" buttons for task
> tiddlers.
>
> To tell the truth, there are some terrific JS libraries that do all of
> that and much more, and I was hoping there would be a simple way they might
> be incorporated into TW5, but if there is, I haven't found documentation
> for it. Is there such a way? Or has someone already created awesome
> date-manipulation plugins?
>
> --
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Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
Hi Antaeus,
There's are these core functions:
*parseDate* — parses a datestring into a js date object
*stringifyDate* — does the reverse
So, something like this should do the trick of shifting by a given number
of days...
function(datestring, shiftbydays) {
var date = $tw.utils.parseDate(datestring),
result = new Date(date.getTime() + shiftbydays*8640);
return $tw.utils.stringifyDate(result);
}
Best wishes,
— tb
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Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
How about
http://t5a.tiddlyspot.com/#%24%3A%2Fplugin%2Fajh%2Ftiddlytime%2FDateTime.js
Happy Connecting. Sent from my Sprint Samsung Galaxy S® 5
Original message
From: Antaeus Feldspar
Date: 10/06/2015 7:13 PM (GMT-07:00)
To: TiddlyWiki
Subject: Re: [tw] [TW5] How to create a button that replaces a field value
based on the current field value?
Actually, perhaps I should share what my macro will do - I went looking to see
if there was an existing plugin that handled such things, and didn't find one,
but that could be just because I wasn't looking in the right places.
My macro will take a 17-character string as used in a Date field as its first
parameter, and as its second, a string indicating an amount of time to
increment it ("1d", for instance, would be one day.) It will calculate and
return the incremented date. With being able to read, modify, and write back a
date values, I can create easy "reschedule" buttons for task tiddlers.
To tell the truth, there are some terrific JS libraries that do all of that and
much more, and I was hoping there would be a simple way they might be
incorporated into TW5, but if there is, I haven't found documentation for it.
Is there such a way? Or has someone already created awesome date-manipulation
plugins?
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Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
Actually, perhaps I should share what my macro will do - I went looking to see
if there was an existing plugin that handled such things, and didn't find one,
but that could be just because I wasn't looking in the right places.
My macro will take a 17-character string as used in a Date field as its first
parameter, and as its second, a string indicating an amount of time to
increment it ("1d", for instance, would be one day.) It will calculate and
return the incremented date. With being able to read, modify, and write back a
date values, I can create easy "reschedule" buttons for task tiddlers.
To tell the truth, there are some terrific JS libraries that do all of that and
much more, and I was hoping there would be a simple way they might be
incorporated into TW5, but if there is, I haven't found documentation for it.
Is there such a way? Or has someone already created awesome date-manipulation
plugins?
--
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Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
I absolutely plan to offer it for public consumption when I have it working well. I also have some ideas for some useful filter-operators, but since I'm just getting started with the macros, the filter-operators are some distance in the future! -- 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 tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at http://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/7451dcad-c41c-4872-b1ab-4e1c77fc54c4%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
Hi Antaeus, Tobias, you're right that the best solution may end up being something > other than a macro, but to keep the project going, I have a deep need to be > able to update certain data fields easily in great numbers of tiddlers. An > imperfect solution now is tons better than a perfect solution in three > months. > Always true. What would be interesting to see is what your macro actually does, even if, perhaps, imperfectly so. ;-) Best wishes, — tb -- 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 tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at http://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/65c6e4de-b077-45ed-9fcf-e2c344a7f64c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
Thank you, Jeremy and Tobias especially! I have it working now!
The first time I read Tobias' solution and tried my own based on it, it didn't
work for me. I don't know exactly what I was doing wrong (the text of that
attempt was lost by a browser crash), but every attempt to call the macro
seemed to produce just the text of the macro call, not its result.
Now I understand the solution: write the macro so that any parameters which
can't be represented as hard-coded strings are instead accepted via variables.
Then use SetWidgets or a VarsWidget around the macro call, and set the
parameters with those. Then the macro call can be used as an attribute to the
ButtonWidget.
This is the code of my working version:
```
\define add-she-said()
Hey $(add-she-said-text)$ - is what she said.
\end
<$set name="add-she-said-text" value="roll it">
<>
<$set name="add-she-said-text" value={{!!test}}>
<$button set=!!test setTo=<>>Test button
```
Tobias, you're right that the best solution may end up being something other
than a macro, but to keep the project going, I have a deep need to be able to
update certain data fields easily in great numbers of tiddlers. An imperfect
solution now is tons better than a perfect solution in three months.
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Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
Hi Antaeus, I can see how a js macro might be a simpler first step but perhaps a macro isn't the best implementation for what it is you try to achieve, but rather a widget or maybe a filter operator. Best wishes, — tb -- 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 tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at http://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/76101f60-a35f-44b3-8c1b-6b77c480fad7%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
Hi Antaeus > Jeremy, could I please get your answer to my question? I would have expected Tobias’s solution to work. Does it work for you? > What is the right way to create a button that will read a value from a field, > use that value as input to a macro to reach a new value, and then write that > value back to the same field? Only simple logic can be expressed in wikitext, so it would be reasonable to create a JS macro for more complex logic. You can also write widgets but that generally only makes sense if you want to create dom elements, trap events, or interact with the refresh process. Best wishes Jeremy > I'm starting to get a bit discouraged that such a simple goal seems so > difficult to achieve. > Am I just taking the completely wrong approach? Is there a different way, > other than macros, to do calculations in JavaScript on data stored in > tiddlers? If so, where is it documented? > > -- > 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 tiddlywiki+unsubscr...@googlegroups.com. > To post to this group, send email to tiddlywiki@googlegroups.com. > Visit this group at http://groups.google.com/group/tiddlywiki. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tiddlywiki/1a5c17b5-129a-410a-911f-ce0651b5e362%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- 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 tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at http://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/28B82BAC-87F1-45EC-B660-FC907A213531%40gmail.com. For more options, visit https://groups.google.com/d/optout.
Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
Jeremy, could I please get your answer to my question? What is the right way to create a button that will read a value from a field, use that value as input to a macro to reach a new value, and then write that value back to the same field? I'm starting to get a bit discouraged that such a simple goal seems so difficult to achieve. Am I just taking the completely wrong approach? Is there a different way, other than macros, to do calculations in JavaScript on data stored in tiddlers? If so, where is it documented? -- 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 tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at http://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/1a5c17b5-129a-410a-911f-ce0651b5e362%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
Hi Mark
As you’ve discovered, this doesn’t work:
<>
Instead, you can use the <$macrocall> widget to invoke the macro. For example:
<$macrocall $name=“textMaker” myParam={{!!myField}}/>
Widgets are the fundamental unit of functionality in TiddlyWiki; all the other
wikitext syntax is just shortcuts for creating widgets.
But, as discussed before, one can’t use that syntax as an attribute value.
Best wishes
Jeremy
> On 4 Oct 2015, at 06:11, 'Mark S.' via TiddlyWiki
> wrote:
>
> Hi Jeremy,
>
> But, at the bottom line, is there any way to set up Tobias' solution without
> resorting to <$set> (or <$var>) ?
>
> Thanks!
> Mark
>
>
> On Saturday, October 3, 2015 at 3:31:53 PM UTC-7, Jeremy Ruston wrote:
> Hi Mark
>
>> 3) You can use a macro inside a widget IF it doesn't have a parameter
>
> That is not correct. Macro invocations used as widget attributes may have
> parameters.
>
> However, there are a couple of points to watch:
>
> * The output of the macro is not wikified; it is used directly as the value
> of the attribute
> * The double angle brackets widget call syntax only allows parameters to be
> specified as strings
>
>
>
>
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Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
Hi Jeremy, But, at the bottom line, is there any way to set up Tobias' solution without resorting to <$set> (or <$var>) ? Thanks! Mark On Saturday, October 3, 2015 at 3:31:53 PM UTC-7, Jeremy Ruston wrote: > > Hi Mark > > 3) You can use a macro inside a widget IF it doesn't have a parameter > > > That is not correct. Macro invocations used as widget attributes may have > parameters. > > However, there are a couple of points to watch: > > * The output of the macro is not wikified; it is used directly as the > value of the attribute > * The double angle brackets widget call syntax only allows parameters to > be specified as strings > > > > -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at http://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/f0604d54-69de-403a-a749-1c64e66b2279%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [tw] [TW5] How to create a button that replaces a field value based on the current field value?
Hi Mark
> 3) You can use a macro inside a widget IF it doesn't have a parameter
That is not correct. Macro invocations used as widget attributes may have
parameters.
However, there are a couple of points to watch:
* The output of the macro is not wikified; it is used directly as the value of
the attribute
* The double angle brackets widget call syntax only allows parameters to be
specified as strings
Best wishes
Jeremy.
> 4) Therefore, you will most often need to use <$set ...> to set a variable to
> be used by a macro that gets fed to your widget
>
> Mark
>
> On Saturday, October 3, 2015 at 10:49:00 AM UTC-7, Antaeus Feldspar wrote:
> Or, to express it a different way from the subject line, how can I create a
> button widget that will:
> a) take the current value of a tiddler field;
> b) use that current value as a parameter to a macro to calculate a new value;
> and
> c) put that new value back into the tiddler field that was read?
> WHAT I TRIED:
>
> I've tried various things; my most recent attempt is this:
>
> <$button set=!!test setTo=<$macrocall $name=".js-macro-link"
> text={{!!test}}/> >Test button
>
> However, the parser can't seem to handle the angle brackets of the macrocall
> widget appearing in the middle of the button widget declaration. Everything
> after the "/>" that closes the macrocall widget appears as WikiText following
> a blank button.
>
> Before that I tried calling the macro through the standard syntax, and
> discovered that (unless there's some way to do it that I missed) you can't
> use a macro call as an element attribute.
>
> It occurred to me that since a ButtonWidget can contain multiple
> ActionWidgets, that might be the solution - except that there's nothing in
> the documentation guaranteeing an order in which such widgets execute, so
> assigning the output of a macro to a temporary tiddler and then copying it
> back to the original field does not seem to be an option.
>
> PLEASE NOTE:
>
> Please note that I am trying to get an answer to the GENERAL question, not
> "how do I get the same effect as if I was applying this particular macro?" I
> am sure that there would be a simple way to apply the effect of THIS macro
> with template transclusion, but that does not answer my question, because
> sooner or later I will be using the technique for Javascript macros that do
> mathematical calculations.
>
> DOCUMENTATION SUGGESTION:
>
> A chart which shows the various forms of data sourcing (plain text,
> TextReference, macro output, etc.) in columns and then shows in rows what
> they can and can't be used for (macro parameters, element attributes, etc.)
> would be useful.
>
>
>
>
>
>
>
>
>
>
>
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