So, did you add Eric's macro to your TW and verify it works? That would be
the first step in trouble-shooting. Remember, after loading the convertdate
macro, you have to save and reload your TW file.
It worked for me without problem:
On Monday, August 16, 2021 at 12:30:13 PM UTC-7 S² wrote:
> Mark, thanks for feedback.
>
> The added 'published-tw' field is empty - no values:
> [image: published-tw.png]
>
> Mark S. schrieb am Montag, 16. August 2021 um 20:31:28 UTC+2:
>
>> So what you really need is a filter operator that can do the conversion
>> and be used inside a sortsub operator. @Eric ?
>>
>> If you're willing to use an "update" button, one solution would be a
>> button that creates "published-tw" (date in TW format) fields for any
>> tiddler that has a "published" field. Then you could have the TOC sort on
>> the published-tw field. You would have to remember to periodically perform
>> the "update" whenever you had data changes. This two-step approach makes
>> certain activities in TW much easier to handle.
>>
>> So the code to update the field might look like:
>>
>> <$button>Update Publication Dates
>> <$list filter="[has[published]]">
>> <$wikify text="""<$macrocall $name=convertdate from={{!!published}}
>> to="[UTC]YYYY0MM0DD0hh0mm0ss0XXX" />""" name=result >
>> <$action-setfield $field=published-tw $value=<<result>> />
>> </$wikify>
>> </$list>
>> </$button>
>>
>> Be sure to make a backup before trying this of course. Also, this assumes
>> that you have the latest version of Eric's converdate macro installed.
>>
>>
>> On Monday, August 16, 2021 at 3:37:26 AM UTC-7 S² wrote:
>>
>>> Hello,
>>>
>>> thanks for all input and effort.
>>> It looks like it is not so easy...
>>>
>>> As I wrote, I use the text field ‘publish’ to add a date. (date modified
>>> or created will not help me)
>>>
>>> This date can also be in the future.
>>> Format is *T. MMMM JJJJ* - (eg. *7. April 2021* or *13. August 2021*) –
>>> this is the long date in German (like "DDth MMM YYYY")
>>>
>>> 'published' is also shown in TOC:
>>>
>>> [image: TOC.png]
>>>
>>> Now asked for a way to sort TOC on ‘published’ instead of Tiddler title.
>>>
>>> The output should still be "DDth MMM YYYY"
>>>
>>> Thanks
>>> Stefan
>>> Eric Shulman schrieb am Montag, 16. August 2021 um 03:12:35 UTC+2:
>>>
>>>> On Sunday, August 15, 2021 at 4:47:47 PM UTC-7 Mark S. wrote:
>>>>
>>>>> Just tried
>>>>> <<convertdate from:"7. April 2021" to:"[UTC]YYYY0MM0DD0hh0mm0ss0XXX">>
>>>>> and got a hard RSOE ("from" not defined). I think the arguments need
>>>>> to be tweaked in the macro.
>>>>>
>>>>
>>>> OOPS! I had originally used "date" and "format" as the parameter
>>>> names, but then I decided to change to using "from" and "to".
>>>> Unfortunately, the arguments in the macro function declaration were still
>>>> using "date" and "format", but internally, the macro code referenced
>>>> "from"
>>>> and "to" as intended. I've corrected the arguments in the macro function
>>>> declaration and posted an update here:
>>>>
>>>> https://tiddlytools.com/timer.html#TiddlyTools%2FTime%2FConvertDate
>>>>
>>>> Thanks,
>>>> -e
>>>>
>>>
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