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			1227 lines
		
	
	
		
			37 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
| <!DOCTYPE html>
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| <html lang="en">
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| <head>
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|     <meta charset="utf-8">
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|     <title>JSDoc: Source: becca/entities/note.js</title>
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| 
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|     <script src="scripts/prettify/prettify.js"> </script>
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|     <script src="scripts/prettify/lang-css.js"> </script>
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|     <!--[if lt IE 9]>
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|       <script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
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|     <![endif]-->
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|     <link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
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|     <link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
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| </head>
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| 
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| <body>
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| 
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| <div id="main">
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| 
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|     <h1 class="page-title">Source: becca/entities/note.js</h1>
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| 
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|     
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| 
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| 
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| 
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|     
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|     <section>
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|         <article>
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|             <pre class="prettyprint source linenums"><code>"use strict";
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| 
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| const protectedSessionService = require('../../services/protected_session');
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| const log = require('../../services/log');
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| const sql = require('../../services/sql');
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| const utils = require('../../services/utils');
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| const dateUtils = require('../../services/date_utils');
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| const entityChangesService = require('../../services/entity_changes');
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| const AbstractEntity = require("./abstract_entity.js");
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| const NoteRevision = require("./note_revision.js");
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| 
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| const LABEL = 'label';
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| const RELATION = 'relation';
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| 
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| /**
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|  * Trilium's main entity which can represent text note, image, code note, file attachment etc.
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|  */
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| class Note extends AbstractEntity {
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|     static get entityName() { return "notes"; }
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|     static get primaryKeyName() { return "noteId"; }
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|     static get hashedProperties() { return ["noteId", "title", "isProtected", "type", "mime"]; }
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| 
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|     constructor(row) {
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|         super();
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| 
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|         if (!row) {
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|             return;
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|         }
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| 
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|         this.updateFromRow(row);
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|         this.init();
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|     }
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| 
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|     updateFromRow(row) {
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|         this.update([
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|             row.noteId,
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|             row.title,
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|             row.type,
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|             row.mime,
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|             row.isProtected,
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|             row.dateCreated,
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|             row.dateModified,
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|             row.utcDateCreated,
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|             row.utcDateModified
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|         ]);
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|     }
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| 
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|     update([noteId, title, type, mime, isProtected, dateCreated, dateModified, utcDateCreated, utcDateModified]) {
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|         // ------ Database persisted attributes ------
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| 
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|         /** @type {string} */
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|         this.noteId = noteId;
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|         /** @type {string} */
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|         this.title = title;
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|         /** @type {boolean} */
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|         this.isProtected = !!isProtected;
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|         /** @type {string} */
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|         this.type = type;
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|         /** @type {string} */
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|         this.mime = mime;
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|         /** @type {string} */
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|         this.dateCreated = dateCreated || dateUtils.localNowDateTime();
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|         /** @type {string} */
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|         this.dateModified = dateModified;
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|         /** @type {string} */
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|         this.utcDateCreated = utcDateCreated || dateUtils.utcNowDateTime();
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|         /** @type {string} */
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|         this.utcDateModified = utcDateModified;
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| 
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|         // ------ Derived attributes ------
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| 
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|         /** @type {boolean} */
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|         this.isDecrypted = !this.noteId || !this.isProtected;
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| 
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|         this.decrypt();
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| 
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|         /** @type {string|null} */
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|         this.flatTextCache = null;
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| 
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|         return this;
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|     }
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| 
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|     init() {
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|         /** @type {Branch[]} */
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|         this.parentBranches = [];
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|         /** @type {Note[]} */
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|         this.parents = [];
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|         /** @type {Note[]} */
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|         this.children = [];
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|         /** @type {Attribute[]} */
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|         this.ownedAttributes = [];
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| 
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|         /** @type {Attribute[]|null}
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|          * @private */
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|         this.__attributeCache = null;
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|         /** @type {Attribute[]|null}
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|          * @private*/
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|         this.inheritableAttributeCache = null;
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| 
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|         /** @type {Attribute[]} */
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|         this.targetRelations = [];
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| 
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|         this.becca.addNote(this.noteId, this);
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| 
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|         /** @type {Note[]|null}
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|          * @private */
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|         this.ancestorCache = null;
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| 
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|         // following attributes are filled during searching from database
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| 
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|         /**
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|          * size of the content in bytes
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|          * @type {int|null}
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|          */
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|         this.contentSize = null;
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|         /**
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|          * size of the content and note revision contents in bytes
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|          * @type {int|null}
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|          */
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|         this.noteSize = null;
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|         /**
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|          * number of note revisions for this note
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|          * @type {int|null}
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|          */
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|         this.revisionCount = null;
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|     }
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| 
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|     isContentAvailable() {
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|         return !this.noteId // new note which was not encrypted yet
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|             || !this.isProtected
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|             || protectedSessionService.isProtectedSessionAvailable()
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|     }
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| 
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|     /** @returns {Branch[]} */
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|     getParentBranches() {
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|         return this.parentBranches;
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|     }
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| 
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|     /** @returns {Branch[]} */
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|     getBranches() {
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|         return this.parentBranches;
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|     }
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| 
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|     /** @returns {Note[]} */
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|     getParentNotes() {
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|         return this.parents;
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|     }
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| 
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|     /** @returns {Note[]} */
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|     getChildNotes() {
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|         return this.children;
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|     }
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| 
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|     /** @returns {boolean} */
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|     hasChildren() {
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|         return this.children && this.children.length > 0;
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|     }
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| 
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|     /** @returns {Branch[]} */
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|     getChildBranches() {
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|         return this.children.map(childNote => this.becca.getBranchFromChildAndParent(childNote.noteId, this.noteId));
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|     }
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| 
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|     /*
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|      * Note content has quite special handling - it's not a separate entity, but a lazily loaded
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|      * part of Note entity with it's own sync. Reasons behind this hybrid design has been:
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|      *
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|      * - content can be quite large and it's not necessary to load it / fill memory for any note access even if we don't need a content, especially for bulk operations like search
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|      * - changes in the note metadata or title should not trigger note content sync (so we keep separate utcDateModified and entity changes records)
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|      * - but to the user note content and title changes are one and the same - single dateModified (so all changes must go through Note and content is not a separate entity)
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|      */
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| 
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|     /** @returns {*} */
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|     getContent(silentNotFoundError = false) {
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|         const row = sql.getRow(`SELECT content FROM note_contents WHERE noteId = ?`, [this.noteId]);
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| 
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|         if (!row) {
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|             if (silentNotFoundError) {
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|                 return undefined;
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|             }
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|             else {
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|                 throw new Error("Cannot find note content for noteId=" + this.noteId);
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|             }
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|         }
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| 
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|         let content = row.content;
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| 
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|         if (this.isProtected) {
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|             if (protectedSessionService.isProtectedSessionAvailable()) {
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|                 content = content === null ? null : protectedSessionService.decrypt(content);
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|             }
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|             else {
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|                 content = "";
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|             }
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|         }
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| 
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|         if (this.isStringNote()) {
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|             return content === null
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|                 ? ""
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|                 : content.toString("UTF-8");
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|         }
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|         else {
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|             return content;
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|         }
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|     }
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| 
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|     /** @returns {{contentLength, dateModified, utcDateModified}} */
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|     getContentMetadata() {
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|         return sql.getRow(`
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|             SELECT 
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|                 LENGTH(content) AS contentLength, 
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|                 dateModified,
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|                 utcDateModified 
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|             FROM note_contents 
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|             WHERE noteId = ?`, [this.noteId]);
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|     }
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| 
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|     /** @returns {*} */
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|     getJsonContent() {
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|         const content = this.getContent();
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| 
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|         if (!content || !content.trim()) {
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|             return null;
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|         }
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| 
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|         return JSON.parse(content);
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|     }
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| 
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|     setContent(content, ignoreMissingProtectedSession = false) {
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|         if (content === null || content === undefined) {
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|             throw new Error(`Cannot set null content to note ${this.noteId}`);
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|         }
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| 
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|         if (this.isStringNote()) {
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|             content = content.toString();
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|         }
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|         else {
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|             content = Buffer.isBuffer(content) ? content : Buffer.from(content);
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|         }
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| 
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|         const pojo = {
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|             noteId: this.noteId,
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|             content: content,
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|             dateModified: dateUtils.localNowDateTime(),
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|             utcDateModified: dateUtils.utcNowDateTime()
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|         };
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| 
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|         if (this.isProtected) {
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|             if (protectedSessionService.isProtectedSessionAvailable()) {
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|                 pojo.content = protectedSessionService.encrypt(pojo.content);
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|             }
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|             else if (!ignoreMissingProtectedSession) {
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|                 throw new Error(`Cannot update content of noteId=${this.noteId} since we're out of protected session.`);
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|             }
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|         }
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| 
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|         sql.upsert("note_contents", "noteId", pojo);
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| 
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|         const hash = utils.hash(this.noteId + "|" + pojo.content.toString());
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| 
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|         entityChangesService.addEntityChange({
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|             entityName: 'note_contents',
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|             entityId: this.noteId,
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|             hash: hash,
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|             isErased: false,
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|             utcDateChanged: pojo.utcDateModified,
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|             isSynced: true
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|         });
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|     }
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| 
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|     setJsonContent(content) {
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|         this.setContent(JSON.stringify(content, null, '\t'));
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|     }
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| 
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|     /** @returns {boolean} true if this note is the root of the note tree. Root note has "root" noteId */
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|     isRoot() {
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|         return this.noteId === 'root';
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|     }
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| 
 | |
|     /** @returns {boolean} true if this note is of application/json content type */
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|     isJson() {
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|         return this.mime === "application/json";
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|     }
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| 
 | |
|     /** @returns {boolean} true if this note is JavaScript (code or attachment) */
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|     isJavaScript() {
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|         return (this.type === "code" || this.type === "file")
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|             && (this.mime.startsWith("application/javascript")
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|                 || this.mime === "application/x-javascript"
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|                 || this.mime === "text/javascript");
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|     }
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| 
 | |
|     /** @returns {boolean} true if this note is HTML */
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|     isHtml() {
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|         return ["code", "file", "render"].includes(this.type)
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|             && this.mime === "text/html";
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|     }
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| 
 | |
|     /** @returns {boolean} true if the note has string content (not binary) */
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|     isStringNote() {
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|         return utils.isStringNote(this.type, this.mime);
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|     }
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| 
 | |
|     /** @returns {string|null} JS script environment - either "frontend" or "backend" */
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|     getScriptEnv() {
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|         if (this.isHtml() || (this.isJavaScript() && this.mime.endsWith('env=frontend'))) {
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|             return "frontend";
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|         }
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| 
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|         if (this.type === 'render') {
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|             return "frontend";
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|         }
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| 
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|         if (this.isJavaScript() && this.mime.endsWith('env=backend')) {
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|             return "backend";
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|         }
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| 
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|         return null;
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|     }
 | |
| 
 | |
|     /**
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|      * @param {string} [type] - (optional) attribute type to filter
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|      * @param {string} [name] - (optional) attribute name to filter
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|      * @returns {Attribute[]} all note's attributes, including inherited ones
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|      */
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|     getAttributes(type, name) {
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|         this.__getAttributes([]);
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| 
 | |
|         if (type && name) {
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|             return this.__attributeCache.filter(attr => attr.type === type && attr.name === name);
 | |
|         }
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|         else if (type) {
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|             return this.__attributeCache.filter(attr => attr.type === type);
 | |
|         }
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|         else if (name) {
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|             return this.__attributeCache.filter(attr => attr.name === name);
 | |
|         }
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|         else {
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|             return this.__attributeCache.slice();
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|         }
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|     }
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| 
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|     __getAttributes(path) {
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|         if (path.includes(this.noteId)) {
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|             return [];
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|         }
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| 
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|         if (!this.__attributeCache) {
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|             const parentAttributes = this.ownedAttributes.slice();
 | |
|             const newPath = [...path, this.noteId];
 | |
| 
 | |
|             if (this.noteId !== 'root') {
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|                 for (const parentNote of this.parents) {
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|                     parentAttributes.push(...parentNote.__getInheritableAttributes(newPath));
 | |
|                 }
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|             }
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| 
 | |
|             const templateAttributes = [];
 | |
| 
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|             for (const ownedAttr of parentAttributes) { // parentAttributes so we process also inherited templates
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|                 if (ownedAttr.type === 'relation' && ownedAttr.name === 'template') {
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|                     const templateNote = this.becca.notes[ownedAttr.value];
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| 
 | |
|                     if (templateNote) {
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|                         templateAttributes.push(...templateNote.__getAttributes(newPath));
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|                     }
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|                 }
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|             }
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| 
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|             this.__attributeCache = [];
 | |
| 
 | |
|             const addedAttributeIds = new Set();
 | |
| 
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|             for (const attr of parentAttributes.concat(templateAttributes)) {
 | |
|                 if (!addedAttributeIds.has(attr.attributeId)) {
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|                     addedAttributeIds.add(attr.attributeId);
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| 
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|                     this.__attributeCache.push(attr);
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             this.inheritableAttributeCache = [];
 | |
| 
 | |
|             for (const attr of this.__attributeCache) {
 | |
|                 if (attr.isInheritable) {
 | |
|                     this.inheritableAttributeCache.push(attr);
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return this.__attributeCache;
 | |
|     }
 | |
| 
 | |
|     /** @returns {Attribute[]} */
 | |
|     __getInheritableAttributes(path) {
 | |
|         if (path.includes(this.noteId)) {
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|             return [];
 | |
|         }
 | |
| 
 | |
|         if (!this.inheritableAttributeCache) {
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|             this.__getAttributes(path); // will refresh also this.inheritableAttributeCache
 | |
|         }
 | |
| 
 | |
|         return this.inheritableAttributeCache;
 | |
|     }
 | |
| 
 | |
|     hasAttribute(type, name) {
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|         return !!this.getAttributes().find(attr => attr.type === type && attr.name === name);
 | |
|     }
 | |
| 
 | |
|     getAttributeCaseInsensitive(type, name, value) {
 | |
|         name = name.toLowerCase();
 | |
|         value = value ? value.toLowerCase() : null;
 | |
| 
 | |
|         return this.getAttributes().find(
 | |
|             attr => attr.type === type
 | |
|             && attr.name.toLowerCase() === name
 | |
|             && (!value || attr.value.toLowerCase() === value));
 | |
|     }
 | |
| 
 | |
|     getRelationTarget(name) {
 | |
|         const relation = this.getAttributes().find(attr => attr.type === 'relation' && attr.name === name);
 | |
| 
 | |
|         return relation ? relation.targetNote : null;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - label name
 | |
|      * @returns {boolean} true if label exists (including inherited)
 | |
|      */
 | |
|     hasLabel(name) { return this.hasAttribute(LABEL, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - label name
 | |
|      * @returns {boolean} true if label exists (excluding inherited)
 | |
|      */
 | |
|     hasOwnedLabel(name) { return this.hasOwnedAttribute(LABEL, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - relation name
 | |
|      * @returns {boolean} true if relation exists (including inherited)
 | |
|      */
 | |
|     hasRelation(name) { return this.hasAttribute(RELATION, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - relation name
 | |
|      * @returns {boolean} true if relation exists (excluding inherited)
 | |
|      */
 | |
|     hasOwnedRelation(name) { return this.hasOwnedAttribute(RELATION, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - label name
 | |
|      * @returns {Attribute|null} label if it exists, null otherwise
 | |
|      */
 | |
|     getLabel(name) { return this.getAttribute(LABEL, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - label name
 | |
|      * @returns {Attribute|null} label if it exists, null otherwise
 | |
|      */
 | |
|     getOwnedLabel(name) { return this.getOwnedAttribute(LABEL, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - relation name
 | |
|      * @returns {Attribute|null} relation if it exists, null otherwise
 | |
|      */
 | |
|     getRelation(name) { return this.getAttribute(RELATION, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - relation name
 | |
|      * @returns {Attribute|null} relation if it exists, null otherwise
 | |
|      */
 | |
|     getOwnedRelation(name) { return this.getOwnedAttribute(RELATION, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - label name
 | |
|      * @returns {string|null} label value if label exists, null otherwise
 | |
|      */
 | |
|     getLabelValue(name) { return this.getAttributeValue(LABEL, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - label name
 | |
|      * @returns {string|null} label value if label exists, null otherwise
 | |
|      */
 | |
|     getOwnedLabelValue(name) { return this.getOwnedAttributeValue(LABEL, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - relation name
 | |
|      * @returns {string|null} relation value if relation exists, null otherwise
 | |
|      */
 | |
|     getRelationValue(name) { return this.getAttributeValue(RELATION, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} name - relation name
 | |
|      * @returns {string|null} relation value if relation exists, null otherwise
 | |
|      */
 | |
|     getOwnedRelationValue(name) { return this.getOwnedAttributeValue(RELATION, name); }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} type - attribute type (label, relation, etc.)
 | |
|      * @param {string} name - attribute name
 | |
|      * @returns {boolean} true if note has an attribute with given type and name (excluding inherited)
 | |
|      */
 | |
|     hasOwnedAttribute(type, name) {
 | |
|         return !!this.getOwnedAttribute(type, name);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} type - attribute type (label, relation, etc.)
 | |
|      * @param {string} name - attribute name
 | |
|      * @returns {Attribute} attribute of given type and name. If there's more such attributes, first is  returned. Returns null if there's no such attribute belonging to this note.
 | |
|      */
 | |
|     getAttribute(type, name) {
 | |
|         const attributes = this.getAttributes();
 | |
| 
 | |
|         return attributes.find(attr => attr.type === type && attr.name === name);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} type - attribute type (label, relation, etc.)
 | |
|      * @param {string} name - attribute name
 | |
|      * @returns {string|null} attribute value of given type and name or null if no such attribute exists.
 | |
|      */
 | |
|     getAttributeValue(type, name) {
 | |
|         const attr = this.getAttribute(type, name);
 | |
| 
 | |
|         return attr ? attr.value : null;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} type - attribute type (label, relation, etc.)
 | |
|      * @param {string} name - attribute name
 | |
|      * @returns {string|null} attribute value of given type and name or null if no such attribute exists.
 | |
|      */
 | |
|     getOwnedAttributeValue(type, name) {
 | |
|         const attr = this.getOwnedAttribute(type, name);
 | |
| 
 | |
|         return attr ? attr.value : null;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} [name] - label name to filter
 | |
|      * @returns {Attribute[]} all note's labels (attributes with type label), including inherited ones
 | |
|      */
 | |
|     getLabels(name) {
 | |
|         return this.getAttributes(LABEL, name);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} [name] - label name to filter
 | |
|      * @returns {string[]} all note's label values, including inherited ones
 | |
|      */
 | |
|     getLabelValues(name) {
 | |
|         return this.getLabels(name).map(l => l.value);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} [name] - label name to filter
 | |
|      * @returns {Attribute[]} all note's labels (attributes with type label), excluding inherited ones
 | |
|      */
 | |
|     getOwnedLabels(name) {
 | |
|         return this.getOwnedAttributes(LABEL, name);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} [name] - label name to filter
 | |
|      * @returns {string[]} all note's label values, excluding inherited ones
 | |
|      */
 | |
|     getOwnedLabelValues(name) {
 | |
|         return this.getOwnedAttributes(LABEL, name).map(l => l.value);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} [name] - relation name to filter
 | |
|      * @returns {Attribute[]} all note's relations (attributes with type relation), including inherited ones
 | |
|      */
 | |
|     getRelations(name) {
 | |
|         return this.getAttributes(RELATION, name);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} [name] - relation name to filter
 | |
|      * @returns {Attribute[]} all note's relations (attributes with type relation), excluding inherited ones
 | |
|      */
 | |
|     getOwnedRelations(name) {
 | |
|         return this.getOwnedAttributes(RELATION, name);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param {string} [type] - (optional) attribute type to filter
 | |
|      * @param {string} [name] - (optional) attribute name to filter
 | |
|      * @returns {Attribute[]} note's "owned" attributes - excluding inherited ones
 | |
|      */
 | |
|     getOwnedAttributes(type, name) {
 | |
|         // it's a common mistake to include # or ~ into attribute name
 | |
|         if (name && ["#", "~"].includes(name[0])) {
 | |
|             name = name.substr(1);
 | |
|         }
 | |
| 
 | |
|         if (type && name) {
 | |
|             return this.ownedAttributes.filter(attr => attr.type === type && attr.name === name);
 | |
|         }
 | |
|         else if (type) {
 | |
|             return this.ownedAttributes.filter(attr => attr.type === type);
 | |
|         }
 | |
|         else if (name) {
 | |
|             return this.ownedAttributes.filter(attr => attr.name === name);
 | |
|         }
 | |
|         else {
 | |
|             return this.ownedAttributes.slice();
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @returns {Attribute} attribute belonging to this specific note (excludes inherited attributes)
 | |
|      *
 | |
|      * This method can be significantly faster than the getAttribute()
 | |
|      */
 | |
|     getOwnedAttribute(type, name) {
 | |
|         const attrs = this.getOwnedAttributes(type, name);
 | |
| 
 | |
|         return attrs.length > 0 ? attrs[0] : null;
 | |
|     }
 | |
| 
 | |
|     get isArchived() {
 | |
|         return this.hasAttribute('label', 'archived');
 | |
|     }
 | |
| 
 | |
|     hasInheritableOwnedArchivedLabel() {
 | |
|         return !!this.ownedAttributes.find(attr => attr.type === 'label' && attr.name === 'archived' && attr.isInheritable);
 | |
|     }
 | |
| 
 | |
|     // will sort the parents so that non-search & non-archived are first and archived at the end
 | |
|     // this is done so that non-search & non-archived paths are always explored as first when looking for note path
 | |
|     sortParents() {
 | |
|         this.parentBranches.sort((a, b) =>
 | |
|             a.branchId.startsWith('virt-')
 | |
|             || a.parentNote.hasInheritableOwnedArchivedLabel() ? 1 : -1);
 | |
| 
 | |
|         this.parents = this.parentBranches.map(branch => branch.parentNote);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * This is used for:
 | |
|      * - fast searching
 | |
|      * - note similarity evaluation
 | |
|      *
 | |
|      * @return {string} - returns flattened textual representation of note, prefixes and attributes
 | |
|      */
 | |
|     getFlatText() {
 | |
|         if (!this.flatTextCache) {
 | |
|             this.flatTextCache = this.noteId + ' ' + this.type + ' ' + this.mime + ' ';
 | |
| 
 | |
|             for (const branch of this.parentBranches) {
 | |
|                 if (branch.prefix) {
 | |
|                     this.flatTextCache += branch.prefix + ' ';
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             this.flatTextCache += this.title + ' ';
 | |
| 
 | |
|             for (const attr of this.getAttributes()) {
 | |
|                 // it's best to use space as separator since spaces are filtered from the search string by the tokenization into words
 | |
|                 this.flatTextCache += (attr.type === 'label' ? '#' : '~') + attr.name;
 | |
| 
 | |
|                 if (attr.value) {
 | |
|                     this.flatTextCache += '=' + attr.value;
 | |
|                 }
 | |
| 
 | |
|                 this.flatTextCache += ' ';
 | |
|             }
 | |
| 
 | |
|             this.flatTextCache = utils.normalize(this.flatTextCache);
 | |
|         }
 | |
| 
 | |
|         return this.flatTextCache;
 | |
|     }
 | |
| 
 | |
|     invalidateThisCache() {
 | |
|         this.flatTextCache = null;
 | |
| 
 | |
|         this.__attributeCache = null;
 | |
|         this.inheritableAttributeCache = null;
 | |
|         this.ancestorCache = null;
 | |
|     }
 | |
| 
 | |
|     invalidateSubTree(path = []) {
 | |
|         if (path.includes(this.noteId)) {
 | |
|             return;
 | |
|         }
 | |
| 
 | |
|         this.invalidateThisCache();
 | |
| 
 | |
|         if (this.children.length || this.targetRelations.length) {
 | |
|             path = [...path, this.noteId];
 | |
|         }
 | |
| 
 | |
|         for (const childNote of this.children) {
 | |
|             childNote.invalidateSubTree(path);
 | |
|         }
 | |
| 
 | |
|         for (const targetRelation of this.targetRelations) {
 | |
|             if (targetRelation.name === 'template') {
 | |
|                 const note = targetRelation.note;
 | |
| 
 | |
|                 if (note) {
 | |
|                     note.invalidateSubTree(path);
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     invalidateSubtreeFlatText() {
 | |
|         this.flatTextCache = null;
 | |
| 
 | |
|         for (const childNote of this.children) {
 | |
|             childNote.invalidateSubtreeFlatText();
 | |
|         }
 | |
| 
 | |
|         for (const targetRelation of this.targetRelations) {
 | |
|             if (targetRelation.name === 'template') {
 | |
|                 const note = targetRelation.note;
 | |
| 
 | |
|                 if (note) {
 | |
|                     note.invalidateSubtreeFlatText();
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     getRelationDefinitions() {
 | |
|         return this.getLabels()
 | |
|             .filter(l => l.name.startsWith("relation:"));
 | |
|     }
 | |
| 
 | |
|     getLabelDefinitions() {
 | |
|         return this.getLabels()
 | |
|             .filter(l => l.name.startsWith("relation:"));
 | |
|     }
 | |
| 
 | |
|     isTemplate() {
 | |
|         return !!this.targetRelations.find(rel => rel.name === 'template');
 | |
|     }
 | |
| 
 | |
|     /** @returns {Note[]} */
 | |
|     getSubtreeNotesIncludingTemplated() {
 | |
|         const set = new Set();
 | |
| 
 | |
|         function inner(note) {
 | |
|             if (set.has(note)) {
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             set.add(note);
 | |
| 
 | |
|             for (const childNote of note.children) {
 | |
|                 inner(childNote);
 | |
|             }
 | |
| 
 | |
|             for (const targetRelation of note.targetRelations) {
 | |
|                 if (targetRelation.name === 'template') {
 | |
|                     const targetNote = targetRelation.note;
 | |
| 
 | |
|                     if (targetNote) {
 | |
|                         inner(targetNote);
 | |
|                     }
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         inner(this);
 | |
| 
 | |
|         return Array.from(set);
 | |
|     }
 | |
| 
 | |
|     /** @returns {Note[]} */
 | |
|     getSubtreeNotes(includeArchived = true) {
 | |
|         const noteSet = new Set();
 | |
| 
 | |
|         function addSubtreeNotesInner(note) {
 | |
|             if (!includeArchived && note.isArchived) {
 | |
|                 return;
 | |
|             }
 | |
| 
 | |
|             noteSet.add(note);
 | |
| 
 | |
|             for (const childNote of note.children) {
 | |
|                 addSubtreeNotesInner(childNote);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         addSubtreeNotesInner(this);
 | |
| 
 | |
|         return Array.from(noteSet);
 | |
|     }
 | |
| 
 | |
|     /** @returns {String[]} */
 | |
|     getSubtreeNoteIds(includeArchived = true) {
 | |
|         return this.getSubtreeNotes(includeArchived).map(note => note.noteId);
 | |
|     }
 | |
| 
 | |
|     getDescendantNoteIds() {
 | |
|         return this.getSubtreeNoteIds();
 | |
|     }
 | |
| 
 | |
|     get parentCount() {
 | |
|         return this.parents.length;
 | |
|     }
 | |
| 
 | |
|     get childrenCount() {
 | |
|         return this.children.length;
 | |
|     }
 | |
| 
 | |
|     get labelCount() {
 | |
|         return this.getAttributes().filter(attr => attr.type === 'label').length;
 | |
|     }
 | |
| 
 | |
|     get ownedLabelCount() {
 | |
|         return this.ownedAttributes.filter(attr => attr.type === 'label').length;
 | |
|     }
 | |
| 
 | |
|     get relationCount() {
 | |
|         return this.getAttributes().filter(attr => attr.type === 'relation' && !attr.isAutoLink()).length;
 | |
|     }
 | |
| 
 | |
|     get relationCountIncludingLinks() {
 | |
|         return this.getAttributes().filter(attr => attr.type === 'relation').length;
 | |
|     }
 | |
| 
 | |
|     get ownedRelationCount() {
 | |
|         return this.ownedAttributes.filter(attr => attr.type === 'relation' && !attr.isAutoLink()).length;
 | |
|     }
 | |
| 
 | |
|     get ownedRelationCountIncludingLinks() {
 | |
|         return this.ownedAttributes.filter(attr => attr.type === 'relation').length;
 | |
|     }
 | |
| 
 | |
|     get targetRelationCount() {
 | |
|         return this.targetRelations.filter(attr => !attr.isAutoLink()).length;
 | |
|     }
 | |
| 
 | |
|     get targetRelationCountIncludingLinks() {
 | |
|         return this.targetRelations.length;
 | |
|     }
 | |
| 
 | |
|     get attributeCount() {
 | |
|         return this.getAttributes().length;
 | |
|     }
 | |
| 
 | |
|     get ownedAttributeCount() {
 | |
|         return this.getAttributes().length;
 | |
|     }
 | |
| 
 | |
|     /** @returns {Note[]} */
 | |
|     getAncestors() {
 | |
|         if (!this.ancestorCache) {
 | |
|             const noteIds = new Set();
 | |
|             this.ancestorCache = [];
 | |
| 
 | |
|             for (const parent of this.parents) {
 | |
|                 if (!noteIds.has(parent.noteId)) {
 | |
|                     this.ancestorCache.push(parent);
 | |
|                     noteIds.add(parent.noteId);
 | |
|                 }
 | |
| 
 | |
|                 for (const ancestorNote of parent.getAncestors()) {
 | |
|                     if (!noteIds.has(ancestorNote.noteId)) {
 | |
|                         this.ancestorCache.push(ancestorNote);
 | |
|                         noteIds.add(ancestorNote.noteId);
 | |
|                     }
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return this.ancestorCache;
 | |
|     }
 | |
| 
 | |
|     /** @returns {boolean} */
 | |
|     hasAncestor(ancestorNoteId) {
 | |
|         for (const ancestorNote of this.getAncestors()) {
 | |
|             if (ancestorNote.noteId === ancestorNoteId) {
 | |
|                 return true;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return false;
 | |
|     }
 | |
| 
 | |
|     getTargetRelations() {
 | |
|         return this.targetRelations;
 | |
|     }
 | |
| 
 | |
|     /** @returns {Note[]} - returns only notes which are templated, does not include their subtrees
 | |
|      *                     in effect returns notes which are influenced by note's non-inheritable attributes */
 | |
|     getTemplatedNotes() {
 | |
|         const arr = [this];
 | |
| 
 | |
|         for (const targetRelation of this.targetRelations) {
 | |
|             if (targetRelation.name === 'template') {
 | |
|                 const note = targetRelation.note;
 | |
| 
 | |
|                 if (note) {
 | |
|                     arr.push(note);
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return arr;
 | |
|     }
 | |
| 
 | |
|     getDistanceToAncestor(ancestorNoteId) {
 | |
|         if (this.noteId === ancestorNoteId) {
 | |
|             return 0;
 | |
|         }
 | |
| 
 | |
|         let minDistance = 999999;
 | |
| 
 | |
|         for (const parent of this.parents) {
 | |
|             minDistance = Math.min(minDistance, parent.getDistanceToAncestor(ancestorNoteId) + 1);
 | |
|         }
 | |
| 
 | |
|         return minDistance;
 | |
|     }
 | |
| 
 | |
|     getNoteRevisions() {
 | |
|         return sql.getRows("SELECT * FROM note_revisions WHERE noteId = ?", [this.noteId])
 | |
|             .map(row => new NoteRevision(row));
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @return {string[][]} - array of notePaths (each represented by array of noteIds constituting the particular note path)
 | |
|      */
 | |
|     getAllNotePaths() {
 | |
|         if (this.noteId === 'root') {
 | |
|             return [['root']];
 | |
|         }
 | |
| 
 | |
|         const notePaths = [];
 | |
| 
 | |
|         for (const parentNote of this.getParentNotes()) {
 | |
|             for (const parentPath of parentNote.getAllNotePaths()) {
 | |
|                 parentPath.push(this.noteId);
 | |
|                 notePaths.push(parentPath);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return notePaths;
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @param ancestorNoteId
 | |
|      * @return {boolean} - true if ancestorNoteId occurs in at least one of the note's paths
 | |
|      */
 | |
|     isDescendantOfNote(ancestorNoteId) {
 | |
|         const notePaths = this.getAllNotePaths();
 | |
| 
 | |
|         return notePaths.some(path => path.includes(ancestorNoteId));
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Update's given attribute's value or creates it if it doesn't exist
 | |
|      *
 | |
|      * @param {string} type - attribute type (label, relation, etc.)
 | |
|      * @param {string} name - attribute name
 | |
|      * @param {string} [value] - attribute value (optional)
 | |
|      */
 | |
|     setAttribute(type, name, value) {
 | |
|         const attributes = this.getOwnedAttributes();
 | |
|         const attr = attributes.find(attr => attr.type === type && attr.name === name);
 | |
| 
 | |
|         value = value !== null && value !== undefined ? value.toString() : "";
 | |
| 
 | |
|         if (attr) {
 | |
|             if (attr.value !== value) {
 | |
|                 attr.value = value;
 | |
|                 attr.save();
 | |
|             }
 | |
|         }
 | |
|         else {
 | |
|             const Attribute = require("./attribute.js");
 | |
| 
 | |
|             new Attribute({
 | |
|                 noteId: this.noteId,
 | |
|                 type: type,
 | |
|                 name: name,
 | |
|                 value: value
 | |
|             }).save();
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Removes given attribute name-value pair if it exists.
 | |
|      *
 | |
|      * @param {string} type - attribute type (label, relation, etc.)
 | |
|      * @param {string} name - attribute name
 | |
|      * @param {string} [value] - attribute value (optional)
 | |
|      */
 | |
|     removeAttribute(type, name, value) {
 | |
|         const attributes = this.getOwnedAttributes();
 | |
| 
 | |
|         for (const attribute of attributes) {
 | |
|             if (attribute.type === type && attribute.name === name && (value === undefined || value === attribute.value)) {
 | |
|                 attribute.markAsDeleted();
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * @return {Attribute}
 | |
|      */
 | |
|     addAttribute(type, name, value = "", isInheritable = false, position = 1000) {
 | |
|         const Attribute = require("./attribute.js");
 | |
| 
 | |
|         return new Attribute({
 | |
|             noteId: this.noteId,
 | |
|             type: type,
 | |
|             name: name,
 | |
|             value: value,
 | |
|             isInheritable: isInheritable,
 | |
|             position: position
 | |
|         }).save();
 | |
|     }
 | |
| 
 | |
|     addLabel(name, value = "", isInheritable = false) {
 | |
|         return this.addAttribute(LABEL, name, value, isInheritable);
 | |
|     }
 | |
| 
 | |
|     addRelation(name, targetNoteId, isInheritable = false) {
 | |
|         return this.addAttribute(RELATION, name, targetNoteId, isInheritable);
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Based on enabled, attribute is either set or removed.
 | |
|      *
 | |
|      * @param {string} type - attribute type ('relation', 'label' etc.)
 | |
|      * @param {boolean} enabled - toggle On or Off
 | |
|      * @param {string} name - attribute name
 | |
|      * @param {string} [value] - attribute value (optional)
 | |
|      */
 | |
|     toggleAttribute(type, enabled, name, value) {
 | |
|         if (enabled) {
 | |
|             this.setAttribute(type, name, value);
 | |
|         }
 | |
|         else {
 | |
|             this.removeAttribute(type, name, value);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /**
 | |
|      * Based on enabled, label is either set or removed.
 | |
|      *
 | |
|      * @param {boolean} enabled - toggle On or Off
 | |
|      * @param {string} name - label name
 | |
|      * @param {string} [value] - label value (optional)
 | |
|      */
 | |
|     toggleLabel(enabled, name, value) { return this.toggleAttribute(LABEL, enabled, name, value); }
 | |
| 
 | |
|     /**
 | |
|      * Based on enabled, relation is either set or removed.
 | |
|      *
 | |
|      * @param {boolean} enabled - toggle On or Off
 | |
|      * @param {string} name - relation name
 | |
|      * @param {string} [value] - relation value (noteId)
 | |
|      */
 | |
|     toggleRelation(enabled, name, value) { return this.toggleAttribute(RELATION, enabled, name, value); }
 | |
| 
 | |
|     /**
 | |
|      * Update's given label's value or creates it if it doesn't exist
 | |
|      *
 | |
|      * @param {string} name - label name
 | |
|      * @param {string} [value] - label value
 | |
|      */
 | |
|     setLabel(name, value) { return this.setAttribute(LABEL, name, value); }
 | |
| 
 | |
|     /**
 | |
|      * Update's given relation's value or creates it if it doesn't exist
 | |
|      *
 | |
|      * @param {string} name - relation name
 | |
|      * @param {string} value - relation value (noteId)
 | |
|      */
 | |
|     setRelation(name, value) { return this.setAttribute(RELATION, name, value); }
 | |
| 
 | |
|     /**
 | |
|      * Remove label name-value pair, if it exists.
 | |
|      *
 | |
|      * @param {string} name - label name
 | |
|      * @param {string} [value] - label value
 | |
|      */
 | |
|     removeLabel(name, value) { return this.removeAttribute(LABEL, name, value); }
 | |
| 
 | |
|     /**
 | |
|      * Remove relation name-value pair, if it exists.
 | |
|      *
 | |
|      * @param {string} name - relation name
 | |
|      * @param {string} [value] - relation value (noteId)
 | |
|      */
 | |
|     removeRelation(name, value) { return this.removeAttribute(RELATION, name, value); }
 | |
| 
 | |
|     searchNotesInSubtree(searchString) {
 | |
|         const searchService = require("../../services/search/services/search");
 | |
| 
 | |
|         return searchService.searchNotes(searchString);
 | |
|     }
 | |
| 
 | |
|     searchNoteInSubtree(searchString) {
 | |
|         return this.searchNotesInSubtree(searchString)[0];
 | |
|     }
 | |
| 
 | |
|     cloneTo(parentNoteId) {
 | |
|         const cloningService = require("../../services/cloning");
 | |
| 
 | |
|         const branch = this.becca.getNote(parentNoteId).getParentBranches()[0];
 | |
| 
 | |
|         return cloningService.cloneNoteToParent(this.noteId, branch.branchId);
 | |
|     }
 | |
| 
 | |
|     decrypt() {
 | |
|         if (this.isProtected && !this.isDecrypted && protectedSessionService.isProtectedSessionAvailable()) {
 | |
|             try {
 | |
|                 this.title = protectedSessionService.decryptString(this.title);
 | |
| 
 | |
|                 this.isDecrypted = true;
 | |
|             }
 | |
|             catch (e) {
 | |
|                 log.error(`Could not decrypt note ${this.noteId}: ${e.message} ${e.stack}`);
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     get isDeleted() {
 | |
|         return !(this.noteId in this.becca.notes);
 | |
|     }
 | |
| 
 | |
|     beforeSaving() {
 | |
|         super.beforeSaving();
 | |
| 
 | |
|         this.becca.addNote(this.noteId, this);
 | |
| 
 | |
|         this.dateModified = dateUtils.localNowDateTime();
 | |
|         this.utcDateModified = dateUtils.utcNowDateTime();
 | |
|     }
 | |
| 
 | |
|     getPojo() {
 | |
|         return {
 | |
|             noteId: this.noteId,
 | |
|             title: this.title,
 | |
|             isProtected: this.isProtected,
 | |
|             type: this.type,
 | |
|             mime: this.mime,
 | |
|             isDeleted: false,
 | |
|             dateCreated: this.dateCreated,
 | |
|             dateModified: this.dateModified,
 | |
|             utcDateCreated: this.utcDateCreated,
 | |
|             utcDateModified: this.utcDateModified
 | |
|         };
 | |
|     }
 | |
| 
 | |
|     getPojoToSave() {
 | |
|         const pojo = this.getPojo();
 | |
| 
 | |
|         if (pojo.isProtected) {
 | |
|             if (this.isDecrypted) {
 | |
|                 pojo.title = protectedSessionService.encrypt(pojo.title);
 | |
|             }
 | |
|             else {
 | |
|                 // updating protected note outside of protected session means we will keep original ciphertexts
 | |
|                 delete pojo.title;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         return pojo;
 | |
|     }
 | |
| }
 | |
| 
 | |
| module.exports = Note;
 | |
| </code></pre>
 | |
|         </article>
 | |
|     </section>
 | |
| 
 | |
| 
 | |
| 
 | |
| 
 | |
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