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TiddlyWiki5/core/modules/tiddler.js
Jeremy Ruston 623a3ec8f8 Rename "shadow" tiddlers to "system" tiddlers
What we have at the moment isn't really the same as TiddlyWiki
classic's shadow tiddlers, it's a much simpler system for excluding
tiddlers. We'll use the term "shadow" instead to refer to the way that
tiddlers in plugins behave, which is exactly like TiddlyWiki classic's
shadow tiddlers.
2013-03-15 22:00:19 +00:00

64 lines
1.4 KiB
JavaScript

/*\
title: $:/core/modules/tiddler.js
type: application/javascript
module-type: tiddlermethod
Extension methods for the $tw.Tiddler object
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
exports.hasTag = function(tag) {
return this.fields.tags && this.fields.tags.indexOf(tag) !== -1;
};
exports.isSystem = function() {
if(!$tw.utils.hop(this,"systemFlag")) {
this.systemFlag = this.fields.title.indexOf("$:/") === 0;
}
return this.systemFlag;
};
exports.isTemporary = function() {
return this.fields.title.indexOf("$:/temp/") === 0;
};
exports.getFieldString = function(field) {
var value = this.fields[field];
// Check for a missing field
if(value === undefined || value === null) {
return "";
}
// Parse the field with the associated module (if any)
var fieldModule = $tw.Tiddler.fieldModules[field];
if(fieldModule) {
return fieldModule.stringify.call(this,value);
} else {
return value.toString();
}
};
/*
Get all the fields as a name:value block. Options:
exclude: an array of field names to exclude
*/
exports.getFieldStringBlock = function(options) {
options = options || {};
var exclude = options.exclude || [];
var fields = [];
for(var field in this.fields) {
if($tw.utils.hop(this.fields,field)) {
if(exclude.indexOf(field) === -1) {
fields.push(field + ": " + this.getFieldString(field));
}
}
}
return fields.join("\n");
};
})();