Hi,
because I had this issue a while ago and I am currently refactoring my code
and creating helper functions I just wanted to publish one of my util
functions that easily lets you filter on a given subset. Doesn't work with
IE8 because of isArray() ...well who cares? :)
/**
* This function facilitates to check whether a list of tiddlers
* matches a certain filter.
*
* @tRefs a hashmap or an array of tiddler references (titles)
* @filter a filter expression (string) or a compiled filter
*/
utils.getMatches = function(tRefs, filter) {
var source = function(iterator) {
if(Array.isArray(tRefs)) {
for(var i = 0; i < tRefs.length; i++) {
var tObj = $tw.wiki.getTiddler(tRefs[i]);
iterator(tObj, tRefs[i]);
}
} else if(typeof tRefs == "object") {
for(t in tRefs) {
var tObj = $tw.wiki.getTiddler(t);
iterator(tObj, t);
}
} else return [];
};
if(typeof filter == "string") {
var filter = $tw.wiki.compileFilter(filter);
}
return filter.call($tw.wiki, source);
};
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