<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Source: entities/attribute.js</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
</head>
<body>
<div id="main">
<h1 class="page-title">Source: entities/attribute.js</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code>"use strict";
const Entity = require('./entity');
const dateUtils = require('../services/date_utils');
const sql = require('../services/sql');
const promotedAttributeDefinitionParser = require("../services/promoted_attribute_definition_parser");
/**
* Attribute is key value pair owned by a note.
*
* @property {string} attributeId - immutable
* @property {string} noteId - immutable
* @property {string} type - immutable
* @property {string} name - immutable
* @property {string} value
* @property {int} position
* @property {boolean} isInheritable - immutable
* @property {boolean} isDeleted
* @property {string|null} deleteId - ID identifying delete transaction
* @property {string} utcDateCreated
* @property {string} utcDateModified
*
* @extends Entity
*/
class Attribute extends Entity {
static get entityName() { return "attributes"; }
static get primaryKeyName() { return "attributeId"; }
static get hashedProperties() { return ["attributeId", "noteId", "type", "name", "value", "isInheritable", "isDeleted", "utcDateCreated"]; }
constructor(row) {
super(row);
this.isInheritable = !!this.isInheritable;
}
/**
* @returns {Note|null}
*/
getNote() {
return this.repository.getNote(this.noteId);
}
/**
* @returns {Note|null}
*/
getTargetNote() {
if (this.type !== 'relation') {
throw new Error(`Attribute ${this.attributeId} is not relation`);
}
if (!this.value) {
return null;
}
return this.repository.getNote(this.value);
}
/**
* @return {boolean}
*/
isDefinition() {
return this.type === 'label' && (this.name.startsWith('label:') || this.name.startsWith('relation:'));
}
getDefinition() {
return promotedAttributeDefinitionParser.parse(this.value);
}
getDefinedName() {
if (this.type === 'label' && this.name.startsWith('label:')) {
return this.name.substr(6);
} else if (this.type === 'label' && this.name.startsWith('relation:')) {
return this.name.substr(9);
} else {
return this.name;
}
}
beforeSaving() {
if (!this.value) {
if (this.type === 'relation') {
throw new Error(`Cannot save relation ${this.name} since it does not target any note.`);
}
// null value isn't allowed
this.value = "";
}
if (this.position === undefined) {
this.position = 1 + sql.getValue(`SELECT COALESCE(MAX(position), 0) FROM attributes WHERE noteId = ?`, [this.noteId]);
}
if (!this.isInheritable) {
this.isInheritable = false;
}
if (!this.isDeleted) {
this.isDeleted = false;
}
if (!this.utcDateCreated) {
this.utcDateCreated = dateUtils.utcNowDateTime();
}
super.beforeSaving();
if (this.isChanged) {
this.utcDateModified = dateUtils.utcNowDateTime();
}
}
createClone(type, name, value, isInheritable) {
return new Attribute({
noteId: this.noteId,
type: type,
name: name,
value: value,
position: this.position,
isInheritable: isInheritable,
isDeleted: false,
utcDateCreated: this.utcDateCreated,
utcDateModified: this.utcDateModified
});
}
}
module.exports = Attribute;
</code></pre>
</article>
</section>
</div>
<nav>
<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="ApiToken.html">ApiToken</a></li><li><a href="Attribute.html">Attribute</a></li><li><a href="BackendScriptApi.html">BackendScriptApi</a></li><li><a href="Branch.html">Branch</a></li><li><a href="Entity.html">Entity</a></li><li><a href="Note.html">Note</a></li><li><a href="NoteRevision.html">NoteRevision</a></li><li><a href="Option.html">Option</a></li><li><a href="RecentNote.html">RecentNote</a></li></ul><h3><a href="global.html">Global</a></h3>
</nav>
<br class="clear">
<footer>
Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.6</a>
</footer>
<script> prettyPrint(); </script>
<script src="scripts/linenumber.js"> </script>
</body>
</html>