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Add ability to now macro to return same UTC string used in date fields (#2884)

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* Add ability to now macro to return same UTC string used in the modified and created fields.

* Revert "Add ability to now macro to return same UTC string used in the modified and created fields."

This reverts commit 7b6ad7db4a.

* Mods to formatDateString to adjust displayed date to UTC for [UTC]
format. Corresponding doc changes, and optimization for special
case.
This commit is contained in:
Marxsal 2017-07-01 10:09:16 -07:00 committed by Jeremy Ruston
parent 1919f0e9b0
commit 4db950cc45
3 changed files with 24 additions and 2 deletions
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16
core/modules/utils/utils.js
View File

@ -267,6 +267,9 @@ exports.formatDateString = function(date,template) {
[/^0ss/, function() {
return $tw.utils.pad(date.getSeconds());
}],
[/^0XXX/, function() {
return $tw.utils.pad(date.getMilliseconds());
}],
[/^0DD/, function() {
return $tw.utils.pad(date.getDate());
}],
@ -308,6 +311,9 @@ exports.formatDateString = function(date,template) {
[/^ss/, function() {
return date.getSeconds();
}],
[/^XXX/, function() {
return date.getMilliseconds();
}],
[/^[AP]M/, function() {
return $tw.utils.getAmPm(date).toUpperCase();
}],
@ -324,6 +330,16 @@ exports.formatDateString = function(date,template) {
return $tw.utils.pad(date.getFullYear() - 2000);
}]
];
// If the user wants everything in UTC, shift the datestamp
// Optimize for format string that essentially means
// 'return raw UTC (tiddlywiki style) date string.'
if(t.indexOf("[UTC]") == 0 ) {
if(t == "[UTC]YYYY0MM0DD0hh0mm0ssXXX")
return $tw.utils.stringifyDate(new Date());
var offset = date.getTimezoneOffset() ; // in minutes
date = new Date(date.getTime()+offset*60*1000) ;
t = t.substr(5) ;
}
while(t.length){
var matchString = "";
$tw.utils.each(matches, function(m) {

5
editions/tw5.com/tiddlers/features/DateFormat.tid
View File

@ -1,5 +1,5 @@
created: 20140418142957325
modified: 20140912145809035
modified: 20170630223008226
tags: Features
title: DateFormat
type: text/vnd.tiddlywiki
@ -30,10 +30,13 @@ The ViewWidget accepts a `template` attribute that allows the format of date val
|`0mm` |Minutes with leading zero |
|`ss` |Seconds |
|`0ss` |Seconds with leading zero |
|`XXX` |Milliseconds |
|`0XXX` |Milliseconds with leading zero |
|`am` or `pm` |Lower case AM/PM indicator |
|`AM` or `PM` |Upper case AM/PM indicator |
|`TZD` |Timezone offset |
|`\x` |Used to escape a character that would otherwise have special meaning |
|`[UTC]`|Time-shift the represented date to UTC. Must be at very start of format string|
Note that other text is passed through unchanged, allowing commas, colons or other separators to be used.

5
editions/tw5.com/tiddlers/macros/NowMacro.tid
View File

@ -1,6 +1,6 @@
caption: now
created: 20141008141616791
modified: 20150221170300000
modified: 20170630223406157
tags: Macros [[Core Macros]]
title: now Macro
type: text/vnd.tiddlywiki
@ -14,4 +14,7 @@ The value doesn't update automatically, like a ticking clock. It updates wheneve
;format
: A string specifying the desired [[format|DateFormat]], defaulting to `0hh:0mm, DDth MMM YYYY`
''Note'': The format string `[UTC]YYYY0MM0DD0hh0mm0ssXXX` will return a date string representing the UTC time-stamp as it is used in the ~TiddlyWiki `created` and `modified` time-stamp fields.
<<.macro-examples "now">>