TiddlyWiki5/editions/tw5.com/tiddlers/filters/eachday.tid

created: 20140410103123179
modified: 20150210161620000
tags: [[Filter Operators]] [[Group Operators]] [[Date Operators]]
title: eachday Operator
type: text/vnd.tiddlywiki
caption: eachday
op-purpose: select one of each group of input titles by date
op-input: a [[selection of titles|Title Selection]]
op-parameter: the name of a [[date field|Date Fields]], defaulting to <<.field modified>>
op-parameter-name: F
op-output: a selection containing the first input title encountered for each distinct value (ignoring times of day) of field <<.place F>>

Each input title is processed in turn. The value of field <<.place F>> in the corresponding tiddler is examined, and as long as this indicates a date that has not been encountered before, the title is appended to the output.

If a tiddler doesn't contain field <<.place F>>, it contributes nothing to the output.

<<.operator-examples "eachday">>
Update tiddler filter docs 2014-04-10 18:56:51 +00:00			`created: 20140410103123179`
Default eachday to the modified field 2015-02-10 16:21:53 +00:00			`modified: 20150210161620000`
Overhaul the filter operator documentation: part 2 2015-01-24 21:18:44 +00:00			`tags: [[Filter Operators]] [[Group Operators]] [[Date Operators]]`
Overhaul the filter operator documentation: part 1 2015-01-18 18:39:00 +00:00			`title: eachday Operator`
Update tiddler filter docs 2014-04-10 18:56:51 +00:00			`type: text/vnd.tiddlywiki`
Overhaul the filter operator documentation: part 1 2015-01-18 18:39:00 +00:00			`caption: eachday`
Define operators via fields and a view template 2015-02-03 19:29:25 +00:00			`op-purpose: select one of each group of input titles by date`
			`op-input: a [[selection of titles\|Title Selection]]`
Default eachday to the modified field 2015-02-10 16:21:53 +00:00			`op-parameter: the name of a [[date field\|Date Fields]], defaulting to <<.field modified>>`
Define operators via fields and a view template 2015-02-03 19:29:25 +00:00			`op-parameter-name: F`
			`op-output: a selection containing the first input title encountered for each distinct value (ignoring times of day) of field <<.place F>>`
Update tiddler filter docs 2014-04-10 18:56:51 +00:00
Define operators via fields and a view template 2015-02-03 19:29:25 +00:00			`Each input title is processed in turn. The value of field <<.place F>> in the corresponding tiddler is examined, and as long as this indicates a date that has not been encountered before, the title is appended to the output.`
Update tiddler filter docs 2014-04-10 18:56:51 +00:00
Define operators via fields and a view template 2015-02-03 19:29:25 +00:00			`If a tiddler doesn't contain field <<.place F>>, it contributes nothing to the output.`
Update tiddler filter docs 2014-04-10 18:56:51 +00:00
Overhaul the filter operator documentation: part 1 2015-01-18 18:39:00 +00:00			`<<.operator-examples "eachday">>`