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Code Issues Releases Wiki Activity

added list suffix for each filter

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implements #1369

when the suffix is `list`, interprets the field as a list of individual
tiddler titles and returns all titles referenced in the list field of
the source list, existing or not
This commit is contained in:
Tobias Beer 2015-01-26 13:39:04 +01:00
parent 8a763e9d83
commit baca2703f1
1 changed files with 17 additions and 12 deletions
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29
core/modules/filters/each.js
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@ -3,7 +3,8 @@ title: $:/core/modules/filters/each.js
type: application/javascript
module-type: filteroperator
Filter operator that selects one tiddler for each unique value of the specified field
Filter operator that selects one tiddler for each unique value of the specified field.
With suffix "list", selects all tiddlers that are values in a specified list field.
\*/
(function(){
@ -17,19 +18,23 @@ Export our filter function
*/
exports.each = function(source,operator,options) {
var results = [],
values = {};
values = {},
list = "list" === operator.suffix;
source(function(tiddler,title) {
if(tiddler) {
var value;
if((operator.operand === "") || (operator.operand === "title")) {
value = title;
} else {
value = tiddler.getFieldString(operator.operand);
}
if(!$tw.utils.hop(values,value)) {
values[value] = true;
results.push(title);
}
var value,
field = operator.operand || "title";
$tw.utils.each(
list ?
options.wiki.getTiddlerList(title,field) :
[ "title" === field ? title : tiddler.getFieldString(operator.operand)],
function(value){
if(!$tw.utils.hop(values,value)) {
values[value] = true;
results.push(list ? value : title);
}
}
)
}
});
return results;