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			986 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
			
		
		
	
	
			986 lines
		
	
	
		
			33 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: entities/note.js</title>
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<div id="main">
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    <h1 class="page-title">Source: entities/note.js</h1>
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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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const Entity = require('./entity');
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const Attribute = require('./attribute');
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const protectedSessionService = require('../services/protected_session');
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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.js');
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const LABEL = 'label';
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const RELATION = 'relation';
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/**
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 * This represents a Note which is a central object in the Trilium Notes project.
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 *
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 * @property {string} noteId - primary key
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 * @property {string} type - one of "text", "code", "file" or "render"
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 * @property {string} mime - MIME type, e.g. "text/html"
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 * @property {string} title - note title
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 * @property {boolean} isProtected - true if note is protected
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 * @property {boolean} isDeleted - true if note is deleted
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 * @property {string|null} deleteId - ID identifying delete transaction
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 * @property {boolean} isErased - true if note's content is erased after it has been deleted
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 * @property {string} dateCreated - local date time (with offset)
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 * @property {string} dateModified - local date time (with offset)
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 * @property {string} utcDateCreated
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 * @property {string} utcDateModified
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 *
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 * @extends Entity
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 */
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class Note extends Entity {
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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", "type", "mime", "isProtected", "isDeleted", "deleteId"]; }
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    /**
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     * @param row - object containing database row from "notes" table
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     */
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    constructor(row) {
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        super(row);
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        this.isProtected = !!this.isProtected;
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        /* true if content is either not encrypted
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         * or encrypted, but with available protected session (so effectively decrypted) */
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        this.isContentAvailable = true;
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        // check if there's noteId, otherwise this is a new entity which wasn't encrypted yet
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        if (this.isProtected && this.noteId) {
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            this.isContentAvailable = protectedSessionService.isProtectedSessionAvailable();
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            if (this.isContentAvailable) {
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                this.title = protectedSessionService.decryptString(this.title);
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            }
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            else {
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                this.title = "[protected]";
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            }
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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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    /** @returns {*} */
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    getContent(silentNotFoundError = false) {
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        if (this.content === undefined) {
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            const res = sql.getRow(`SELECT content, hash FROM note_contents WHERE noteId = ?`, [this.noteId]);
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            if (!res) {
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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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            this.content = res.content;
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            if (this.isProtected) {
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                if (this.isContentAvailable) {
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                    this.content = this.content === null ? null : protectedSessionService.decrypt(this.content);
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                }
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                else {
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                    this.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 this.content === null
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                ? ""
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                : this.content.toString("UTF-8");
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        }
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        else {
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            return this.content;
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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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    /** @returns {*} */
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    getJsonContent() {
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        const content = this.getContent();
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        if (!content || !content.trim()) {
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            return null;
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        }
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        return JSON.parse(content);
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    }
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    setContent(content) {
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        if (content === null || content === undefined) {
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            throw new Error(`Cannot set null content to note ${this.noteId}`);
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        }
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        if (this.isStringNote()) {
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            content = content.toString();
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        }
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        else {
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            content = Buffer.isBuffer(content) ? content : Buffer.from(content);
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        }
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        this.content = content;
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        const pojo = {
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            noteId: this.noteId,
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            content: content,
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            dateModified: dateUtils.localNowDateTime(),
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            utcDateModified: dateUtils.utcNowDateTime(),
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            hash: utils.hash(this.noteId + "|" + content.toString())
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        };
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        if (this.isProtected) {
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            if (this.isContentAvailable) {
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                pojo.content = protectedSessionService.encrypt(pojo.content);
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            }
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            else {
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                throw new Error(`Cannot update content of noteId=${this.noteId} since we're out of protected session.`);
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            }
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        }
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        sql.upsert("note_contents", "noteId", pojo);
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        entityChangesService.addNoteContentEntityChange(this.noteId);
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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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    /** @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 (this.type === "code" || this.type === "file" || this.type === "render") && 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} 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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        if (this.type === 'render') {
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            return "frontend";
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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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        return null;
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    }
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    loadOwnedAttributesToCache() {
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        this.__ownedAttributeCache = this.repository.getEntities(`SELECT * FROM attributes WHERE isDeleted = 0 AND noteId = ?`, [this.noteId]);
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        return this.__ownedAttributeCache;
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    }
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    /**
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     * This method is a faster variant of getAttributes() which looks for only owned attributes.
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     * Use when inheritance is not needed and/or in batch/performance sensitive operations.
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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[]} note's "owned" attributes - excluding inherited ones
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     */
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    getOwnedAttributes(type, name) {
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        if (!this.__ownedAttributeCache) {
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            this.loadOwnedAttributesToCache();
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        }
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        if (type && name) {
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            return this.__ownedAttributeCache.filter(attr => attr.type === type && attr.name === name);
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        }
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        else if (type) {
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            return this.__ownedAttributeCache.filter(attr => attr.type === type);
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        }
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        else if (name) {
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            return this.__ownedAttributeCache.filter(attr => attr.name === name);
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        }
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        else {
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            return this.__ownedAttributeCache.slice();
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        }
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    }
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    /**
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     * @returns {Attribute} attribute belonging to this specific note (excludes inherited attributes)
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     *
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     * This method can be significantly faster than the getAttribute()
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     */
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    getOwnedAttribute(type, name) {
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        const attrs = this.getOwnedAttributes(type, name);
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        return attrs.length > 0 ? attrs[0] : null;
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    }
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    /**
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     * @returns {Attribute[]} relations targetting this specific note
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     */
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    getTargetRelations() {
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        return this.repository.getEntities("SELECT * FROM attributes WHERE type = 'relation' AND isDeleted = 0 AND value = ?", [this.noteId]);
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    }
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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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        if (!this.__attributeCache) {
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            this.loadAttributesToCache();
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        }
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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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        }
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        else if (type) {
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            return this.__attributeCache.filter(attr => attr.type === type);
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        }
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        else if (name) {
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            return this.__attributeCache.filter(attr => attr.name === name);
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        }
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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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     * @param {string} [name] - label name to filter
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     * @returns {Attribute[]} all note's labels (attributes with type label), including inherited ones
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     */
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    getLabels(name) {
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        return this.getAttributes(LABEL, name);
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    }
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    /**
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     * @param {string} [name] - label name to filter
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     * @returns {Attribute[]} all note's labels (attributes with type label), excluding inherited ones
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     */
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    getOwnedLabels(name) {
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        return this.getOwnedAttributes(LABEL, name);
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    }
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    /**
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     * @param {string} [name] - relation name to filter
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     * @returns {Attribute[]} all note's relations (attributes with type relation), including inherited ones
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     */
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    getRelations(name) {
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        return this.getAttributes(RELATION, name);
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    }
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    /**
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     * @param {string} [name] - relation name to filter
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     * @returns {Attribute[]} all note's relations (attributes with type relation), excluding inherited ones
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     */
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    getOwnedRelations(name) {
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        return this.getOwnedAttributes(RELATION, name);
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    }
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    /**
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     * @param {string} [name] - relation name to filter
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     * @returns {Note[]}
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     */
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    getRelationTargets(name) {
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        const relations = this.getRelations(name);
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        const targets = [];
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        for (const relation of relations) {
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            targets.push(relation.getTargetNote());
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        }
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        return targets;
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    }
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    /**
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     * Clear note's attributes cache to force fresh reload for next attribute request.
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     * Cache is note instance scoped.
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     */
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    invalidateAttributeCache() {
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        this.__attributeCache = null;
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        this.__ownedAttributeCache = null;
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    }
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    loadAttributesToCache() {
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        const attributes = this.repository.getEntities(`
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            WITH RECURSIVE
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            tree(noteId, level) AS (
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                SELECT ?, 0
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                UNION
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                SELECT branches.parentNoteId, tree.level + 1 
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                    FROM branches
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                    JOIN tree ON branches.noteId = tree.noteId
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                WHERE branches.isDeleted = 0
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            ),
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            treeWithAttrs(noteId, level) AS (
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                SELECT * FROM tree
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                UNION
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                SELECT attributes.value, treeWithAttrs.level FROM attributes
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                     JOIN treeWithAttrs ON treeWithAttrs.noteId = attributes.noteId
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                WHERE attributes.isDeleted = 0
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                  AND attributes.type = 'relation'
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                  AND attributes.name = 'template'
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                  AND (treeWithAttrs.level = 0 OR attributes.isInheritable = 1)
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                )
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						|
            SELECT attributes.* FROM attributes JOIN treeWithAttrs ON attributes.noteId = treeWithAttrs.noteId
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            WHERE attributes.isDeleted = 0 AND (attributes.isInheritable = 1 OR treeWithAttrs.level = 0)
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						|
            ORDER BY level, noteId, position`, [this.noteId]);
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						|
        // attributes are ordered so that "closest" attributes are first
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						|
        // we order by noteId so that attributes from same note stay together. Actual noteId ordering doesn't matter.
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 | 
						|
        const filteredAttributes = attributes.filter((attr, index) => {
 | 
						|
            // if this exact attribute already appears then don't include it (can happen via cloning)
 | 
						|
            if (attributes.findIndex(it => it.attributeId === attr.attributeId) !== index) {
 | 
						|
                return false;
 | 
						|
            }
 | 
						|
 | 
						|
            // FIXME: this code is quite questionable, one problem is that other caches (TreeCache, NoteCache) have nothing like that
 | 
						|
            if (attr.isDefinition()) {
 | 
						|
                const firstDefinitionIndex = attributes.findIndex(el => el.type === attr.type && el.name === attr.name);
 | 
						|
 | 
						|
                // keep only if this element is the first definition for this type & name
 | 
						|
                return firstDefinitionIndex === index;
 | 
						|
            }
 | 
						|
            else {
 | 
						|
                const definitionAttr = attributes.find(el => el.type === 'label' && el.name === attr.type + ':' + attr.name);
 | 
						|
 | 
						|
                if (!definitionAttr) {
 | 
						|
                    return true;
 | 
						|
                }
 | 
						|
 | 
						|
                const definition = definitionAttr.getDefinition();
 | 
						|
 | 
						|
                if (definition.multiplicity === 'multi') {
 | 
						|
                    return true;
 | 
						|
                }
 | 
						|
                else {
 | 
						|
                    const firstAttrIndex = attributes.findIndex(el => el.type === attr.type && el.name === attr.name);
 | 
						|
 | 
						|
                    // in case of single-valued attribute we'll keep it only if it's first (closest)
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						|
                    return firstAttrIndex === index;
 | 
						|
                }
 | 
						|
            }
 | 
						|
        });
 | 
						|
 | 
						|
        this.__attributeCache = filteredAttributes;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @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 (including inherited)
 | 
						|
     */
 | 
						|
    hasAttribute(type, name) {
 | 
						|
        return !!this.getAttribute(type, 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;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * 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);
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * 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.loadOwnedAttributesToCache();
 | 
						|
        let attr = attributes.find(attr => attr.type === type && attr.name === name);
 | 
						|
 | 
						|
        if (attr) {
 | 
						|
            if (attr.value !== value) {
 | 
						|
                attr.value = value;
 | 
						|
                attr.save();
 | 
						|
 | 
						|
                this.invalidateAttributeCache();
 | 
						|
            }
 | 
						|
        }
 | 
						|
        else {
 | 
						|
            attr = new Attribute({
 | 
						|
                noteId: this.noteId,
 | 
						|
                type: type,
 | 
						|
                name: name,
 | 
						|
                value: value !== undefined ? value : ""
 | 
						|
            });
 | 
						|
 | 
						|
            attr.save();
 | 
						|
 | 
						|
            this.invalidateAttributeCache();
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * 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.loadOwnedAttributesToCache();
 | 
						|
 | 
						|
        for (const attribute of attributes) {
 | 
						|
            if (attribute.type === type && attribute.name === name && (value === undefined || value === attribute.value)) {
 | 
						|
                attribute.isDeleted = true;
 | 
						|
                attribute.save();
 | 
						|
 | 
						|
                this.invalidateAttributeCache();
 | 
						|
            }
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @return {Attribute}
 | 
						|
     */
 | 
						|
    addAttribute(type, name, value = "", isInheritable = false, position = 1000) {
 | 
						|
        const attr = new Attribute({
 | 
						|
            noteId: this.noteId,
 | 
						|
            type: type,
 | 
						|
            name: name,
 | 
						|
            value: value,
 | 
						|
            isInheritable: isInheritable,
 | 
						|
            position: position
 | 
						|
        });
 | 
						|
 | 
						|
        attr.save();
 | 
						|
 | 
						|
        this.invalidateAttributeCache();
 | 
						|
 | 
						|
        return attr;
 | 
						|
    }
 | 
						|
 | 
						|
    addLabel(name, value = "", isInheritable = false) {
 | 
						|
        return this.addAttribute(LABEL, name, value, isInheritable);
 | 
						|
    }
 | 
						|
 | 
						|
    addRelation(name, targetNoteId, isInheritable = false) {
 | 
						|
        return this.addAttribute(RELATION, name, targetNoteId, isInheritable);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @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} name
 | 
						|
     * @returns {Note|null} target note of the relation or null (if target is empty or note was not found)
 | 
						|
     */
 | 
						|
    getRelationTarget(name) {
 | 
						|
        const relation = this.getRelation(name);
 | 
						|
 | 
						|
        return relation ? this.repository.getNote(relation.value) : null;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @param {string} name
 | 
						|
     * @returns {Note|null} target note of the relation or null (if target is empty or note was not found)
 | 
						|
     */
 | 
						|
    getOwnedRelationTarget(name) {
 | 
						|
        const relation = this.getOwnedRelation(name);
 | 
						|
 | 
						|
        return relation ? this.repository.getNote(relation.value) : null;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * 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); }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @return {string[]} return list of all descendant noteIds of this note. Returning just noteIds because number of notes can be huge. Includes also this note's noteId
 | 
						|
     */
 | 
						|
    getDescendantNoteIds() {
 | 
						|
        return sql.getColumn(`
 | 
						|
            WITH RECURSIVE
 | 
						|
            tree(noteId) AS (
 | 
						|
                SELECT ?
 | 
						|
                UNION
 | 
						|
                SELECT branches.noteId FROM branches
 | 
						|
                    JOIN tree ON branches.parentNoteId = tree.noteId
 | 
						|
                    JOIN notes ON notes.noteId = branches.noteId
 | 
						|
                WHERE notes.isDeleted = 0
 | 
						|
                  AND branches.isDeleted = 0
 | 
						|
            )
 | 
						|
            SELECT noteId FROM tree`, [this.noteId]);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Finds descendant notes with given attribute name and value. Only own attributes are considered, not inherited ones
 | 
						|
     *
 | 
						|
     * @param {string} type - attribute type (label, relation, etc.)
 | 
						|
     * @param {string} name - attribute name
 | 
						|
     * @param {string} [value] - attribute value
 | 
						|
     * @returns {Note[]}
 | 
						|
     */
 | 
						|
    getDescendantNotesWithAttribute(type, name, value) {
 | 
						|
        const params = [this.noteId, name];
 | 
						|
        let valueCondition = "";
 | 
						|
 | 
						|
        if (value !== undefined) {
 | 
						|
            params.push(value);
 | 
						|
            valueCondition = " AND attributes.value = ?";
 | 
						|
        }
 | 
						|
 | 
						|
        const notes = this.repository.getEntities(`
 | 
						|
            WITH RECURSIVE
 | 
						|
            tree(noteId) AS (
 | 
						|
                SELECT ?
 | 
						|
                UNION
 | 
						|
                SELECT branches.noteId FROM branches
 | 
						|
                    JOIN tree ON branches.parentNoteId = tree.noteId
 | 
						|
                    JOIN notes ON notes.noteId = branches.noteId
 | 
						|
                WHERE notes.isDeleted = 0
 | 
						|
                  AND branches.isDeleted = 0
 | 
						|
            )
 | 
						|
            SELECT notes.* FROM notes 
 | 
						|
            JOIN tree ON tree.noteId = notes.noteId
 | 
						|
            JOIN attributes ON attributes.noteId = notes.noteId
 | 
						|
            WHERE attributes.isDeleted = 0 
 | 
						|
              AND attributes.name = ?
 | 
						|
              ${valueCondition} 
 | 
						|
            ORDER BY noteId, position`, params);
 | 
						|
 | 
						|
        return notes;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Finds descendant notes with given label name and value. Only own labels are considered, not inherited ones
 | 
						|
     *
 | 
						|
     * @param {string} name - label name
 | 
						|
     * @param {string} [value] - label value
 | 
						|
     * @returns {Note[]}
 | 
						|
     */
 | 
						|
    getDescendantNotesWithLabel(name, value) { return this.getDescendantNotesWithAttribute(LABEL, name, value); }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Finds descendant notes with given relation name and value. Only own relations are considered, not inherited ones
 | 
						|
     *
 | 
						|
     * @param {string} name - relation name
 | 
						|
     * @param {string} [value] - relation value
 | 
						|
     * @returns {Note[]}
 | 
						|
     */
 | 
						|
    getDescendantNotesWithRelation(name, value) { return this.getDescendantNotesWithAttribute(RELATION, name, value); }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Returns note revisions of this note.
 | 
						|
     *
 | 
						|
     * @returns {NoteRevision[]}
 | 
						|
     */
 | 
						|
    getRevisions() {
 | 
						|
        return this.repository.getEntities("SELECT * FROM note_revisions WHERE noteId = ?", [this.noteId]);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Get list of links coming out of this note.
 | 
						|
     *
 | 
						|
     * @deprecated - not intended for general use
 | 
						|
     * @returns {Attribute[]}
 | 
						|
     */
 | 
						|
    getLinks() {
 | 
						|
        return this.repository.getEntities(`
 | 
						|
            SELECT * 
 | 
						|
            FROM attributes 
 | 
						|
            WHERE noteId = ? AND 
 | 
						|
                  isDeleted = 0 AND
 | 
						|
                  type = 'relation' AND
 | 
						|
                  name IN ('internalLink', 'imageLink', 'relationMapLink', 'includeNoteLink')`, [this.noteId]);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @returns {Branch[]}
 | 
						|
     */
 | 
						|
    getBranches() {
 | 
						|
        return this.repository.getEntities("SELECT * FROM branches WHERE isDeleted = 0 AND noteId = ?", [this.noteId]);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @returns {boolean} - true if note has children
 | 
						|
     */
 | 
						|
    hasChildren() {
 | 
						|
        return (this.getChildNotes()).length > 0;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @returns {Note[]} child notes of this note
 | 
						|
     */
 | 
						|
    getChildNotes() {
 | 
						|
        return this.repository.getEntities(`
 | 
						|
          SELECT notes.* 
 | 
						|
          FROM branches 
 | 
						|
            JOIN notes USING(noteId) 
 | 
						|
          WHERE notes.isDeleted = 0
 | 
						|
                AND branches.isDeleted = 0
 | 
						|
                AND branches.parentNoteId = ?
 | 
						|
          ORDER BY branches.notePosition`, [this.noteId]);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @returns {Branch[]} child branches of this note
 | 
						|
     */
 | 
						|
    getChildBranches() {
 | 
						|
        return this.repository.getEntities(`
 | 
						|
          SELECT branches.* 
 | 
						|
          FROM branches 
 | 
						|
          WHERE branches.isDeleted = 0
 | 
						|
                AND branches.parentNoteId = ?
 | 
						|
          ORDER BY branches.notePosition`, [this.noteId]);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @returns {Note[]} parent notes of this note (note can have multiple parents because of cloning)
 | 
						|
     */
 | 
						|
    getParentNotes() {
 | 
						|
        return this.repository.getEntities(`
 | 
						|
          SELECT parent_notes.* 
 | 
						|
          FROM 
 | 
						|
            branches AS child_tree 
 | 
						|
            JOIN notes AS parent_notes ON parent_notes.noteId = child_tree.parentNoteId 
 | 
						|
          WHERE child_tree.noteId = ?
 | 
						|
                AND child_tree.isDeleted = 0
 | 
						|
                AND parent_notes.isDeleted = 0`, [this.noteId]);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @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;
 | 
						|
    }
 | 
						|
 | 
						|
    getRelationDefinitions() {
 | 
						|
        return this.getLabels()
 | 
						|
            .filter(l => l.name.startsWith("relation:"));
 | 
						|
    }
 | 
						|
 | 
						|
    getLabelDefinitions() {
 | 
						|
        return this.getLabels()
 | 
						|
            .filter(l => l.name.startsWith("relation:"));
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * @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));
 | 
						|
    }
 | 
						|
 | 
						|
    beforeSaving() {
 | 
						|
        if (!this.isDeleted) {
 | 
						|
            this.isDeleted = false;
 | 
						|
        }
 | 
						|
 | 
						|
        if (!this.dateCreated) {
 | 
						|
            this.dateCreated = dateUtils.localNowDateTime();
 | 
						|
        }
 | 
						|
 | 
						|
        if (!this.utcDateCreated) {
 | 
						|
            this.utcDateCreated = dateUtils.utcNowDateTime();
 | 
						|
        }
 | 
						|
 | 
						|
        super.beforeSaving();
 | 
						|
 | 
						|
        if (this.isChanged) {
 | 
						|
            this.dateModified = dateUtils.localNowDateTime();
 | 
						|
            this.utcDateModified = dateUtils.utcNowDateTime();
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    // cannot be static!
 | 
						|
    updatePojo(pojo) {
 | 
						|
        if (pojo.isProtected) {
 | 
						|
            if (this.isContentAvailable) {
 | 
						|
                pojo.title = protectedSessionService.encrypt(pojo.title);
 | 
						|
            }
 | 
						|
            else {
 | 
						|
                // updating protected note outside of protected session means we will keep original ciphertexts
 | 
						|
                delete pojo.title;
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        delete pojo.isContentAvailable;
 | 
						|
        delete pojo.__attributeCache;
 | 
						|
        delete pojo.__ownedAttributeCache;
 | 
						|
        delete pojo.content;
 | 
						|
        /** zero references to contentHash, probably can be removed */
 | 
						|
        delete pojo.contentHash;
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
module.exports = Note;
 | 
						|
</code></pre>
 | 
						|
        </article>
 | 
						|
    </section>
 | 
						|
 | 
						|
 | 
						|
 | 
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 | 
						|
</div>
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<nav>
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    <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>
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</nav>
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<br class="clear">
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<footer>
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    Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.6</a>
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