tiddlywiki
Version:
a non-linear personal web notebook
55 lines (49 loc) • 1.63 kB
JavaScript
/*\
title: $:/core/modules/relinkers/tiddlers.js
type: application/javascript
module-type: relinker
Relinks the tags and list fields of tiddlers.
Calls a tw-relinking-tiddler hook for every altered tiddler.
\*/
exports.name = "tiddlers";
exports.relink = function(wiki,fromTitle,toTitle,options) {
wiki.each(function(tiddler,title) {
var type = tiddler.fields.type || "";
// Don't touch plugins or JavaScript modules
if(!tiddler.fields["plugin-type"] && type !== "application/javascript") {
var tags = tiddler.fields.tags ? tiddler.fields.tags.slice(0) : undefined,
list = tiddler.fields.list ? tiddler.fields.list.slice(0) : undefined,
isModified = false,
processList = function(listField) {
if(listField && listField.indexOf(fromTitle) !== -1) {
// Remove any existing instances of the toTitle
var p = listField.indexOf(toTitle);
while(p !== -1) {
listField.splice(p,1);
p = listField.indexOf(toTitle);
}
// Replace the fromTitle with toTitle
$tw.utils.each(listField,function (title,index) {
if(title === fromTitle) {
listField[index] = toTitle;
isModified = true;
}
});
}
};
if(!options.dontRenameInTags) {
// Rename tags
processList(tags);
}
if(!options.dontRenameInLists) {
// Rename lists
processList(list);
}
if(isModified) {
var newTiddler = new $tw.Tiddler(tiddler,{tags: tags, list: list},wiki.getModificationFields());
newTiddler = $tw.hooks.invokeHook("th-relinking-tiddler",newTiddler,tiddler);
wiki.addTiddler(newTiddler);
}
}
});
};