Hey guys,
I was thinking about a hours filter which is working same like the days
filter to show tiddlers I created or modified the last x hours.
It was quite simple to change some parts of the days core filter. So I want
to share my result:
$:/core/modules/filters/hours.js
/*\
title: $:/core/modules/filters/hours.js
type: application/javascript
module-type: filteroperator
Filter operator that selects tiddlers with a specified date field within a
specified hour interval.
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
/*
Export our filter function
*/
exports.hours = function(source,operator,options) {
var results = [],
fieldName = operator.suffix || "modified",
hourInterval = (parseInt(operator.operand,10)||0),
hourIntervalSign = $tw.utils.sign(hourInterval),
targetTimeStamp = (new Date()).setMinutes(0,0,0) +
1000*60*60*hourInterval,
isWithinHours = function(dateField) {
var sign = $tw.utils.sign(targetTimeStamp - (new
Date(dateField)).setMinutes(0,0,0));
return sign === 0 || sign === hourIntervalSign;
};
if(operator.prefix === "!") {
targetTimeStamp = targetTimeStamp - 1000*60*60*hourIntervalSign;
source(function(tiddler,title) {
if(tiddler && tiddler.fields[fieldName]) {
if(!isWithinDays($tw.utils.parseDate(tiddler.fields[fieldName]))) {
results.push(title);
}
}
});
} else {
source(function(tiddler,title) {
if(tiddler && tiddler.fields[fieldName]) {
if(isWithinHours($tw.utils.parseDate(tiddler.fields[fieldName]))) {
results.push(title);
}
}
});
}
return results;
};
})();
type: application/javascript
module-type: filteroperator
Usage:
e.g. [hours[-2]]
Is there a need for this filter? Are there any suggestions?
Regards,
The Bo
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