mirror of
				https://github.com/TriliumNext/Notes.git
				synced 2025-10-31 13:01:31 +08:00 
			
		
		
		
	
		
			
	
	
		
			204 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
		
		
			
		
	
	
			204 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
|   | <!DOCTYPE html> | ||
|  | <html lang="en"> | ||
|  | <head> | ||
|  |     <meta charset="utf-8"> | ||
|  |     <title>JSDoc: Source: becca/entities/brevision.js</title> | ||
|  | 
 | ||
|  |     <script src="scripts/prettify/prettify.js"> </script> | ||
|  |     <script src="scripts/prettify/lang-css.js"> </script> | ||
|  |     <!--[if lt IE 9]>
 | ||
|  |       <script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script> | ||
|  |     <![endif]--> | ||
|  |     <link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css"> | ||
|  |     <link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css"> | ||
|  | </head> | ||
|  | 
 | ||
|  | <body> | ||
|  | 
 | ||
|  | <div id="main"> | ||
|  | 
 | ||
|  |     <h1 class="page-title">Source: becca/entities/brevision.js</h1> | ||
|  | 
 | ||
|  |      | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  |      | ||
|  |     <section> | ||
|  |         <article> | ||
|  |             <pre class="prettyprint source linenums"><code>"use strict"; | ||
|  | 
 | ||
|  | const protectedSessionService = require('../../services/protected_session'); | ||
|  | const utils = require('../../services/utils'); | ||
|  | const dateUtils = require('../../services/date_utils'); | ||
|  | const becca = require('../becca'); | ||
|  | const AbstractBeccaEntity = require("./abstract_becca_entity"); | ||
|  | const sql = require("../../services/sql"); | ||
|  | const BAttachment = require("./battachment"); | ||
|  | 
 | ||
|  | /** | ||
|  |  * Revision represents a snapshot of note's title and content at some point in the past. | ||
|  |  * It's used for seamless note versioning. | ||
|  |  * | ||
|  |  * @extends AbstractBeccaEntity | ||
|  |  */ | ||
|  | class BRevision extends AbstractBeccaEntity { | ||
|  |     static get entityName() { return "revisions"; } | ||
|  |     static get primaryKeyName() { return "revisionId"; } | ||
|  |     static get hashedProperties() { return ["revisionId", "noteId", "title", "isProtected", "dateLastEdited", "dateCreated", | ||
|  |                                             "utcDateLastEdited", "utcDateCreated", "utcDateModified", "blobId"]; } | ||
|  | 
 | ||
|  |     constructor(row, titleDecrypted = false) { | ||
|  |         super(); | ||
|  | 
 | ||
|  |         /** @type {string} */ | ||
|  |         this.revisionId = row.revisionId; | ||
|  |         /** @type {string} */ | ||
|  |         this.noteId = row.noteId; | ||
|  |         /** @type {string} */ | ||
|  |         this.type = row.type; | ||
|  |         /** @type {string} */ | ||
|  |         this.mime = row.mime; | ||
|  |         /** @type {boolean} */ | ||
|  |         this.isProtected = !!row.isProtected; | ||
|  |         /** @type {string} */ | ||
|  |         this.title = row.title; | ||
|  |         /** @type {string} */ | ||
|  |         this.blobId = row.blobId; | ||
|  |         /** @type {string} */ | ||
|  |         this.dateLastEdited = row.dateLastEdited; | ||
|  |         /** @type {string} */ | ||
|  |         this.dateCreated = row.dateCreated; | ||
|  |         /** @type {string} */ | ||
|  |         this.utcDateLastEdited = row.utcDateLastEdited; | ||
|  |         /** @type {string} */ | ||
|  |         this.utcDateCreated = row.utcDateCreated; | ||
|  |         /** @type {string} */ | ||
|  |         this.utcDateModified = row.utcDateModified; | ||
|  |         /** @type {int} */ | ||
|  |         this.contentLength = row.contentLength; | ||
|  | 
 | ||
|  |         if (this.isProtected && !titleDecrypted) { | ||
|  |             this.title = protectedSessionService.isProtectedSessionAvailable() | ||
|  |                 ? protectedSessionService.decryptString(this.title) | ||
|  |                 : "[protected]"; | ||
|  |         } | ||
|  |     } | ||
|  | 
 | ||
|  |     getNote() { | ||
|  |         return becca.notes[this.noteId]; | ||
|  |     } | ||
|  | 
 | ||
|  |     /** @returns {boolean} true if the note has string content (not binary) */ | ||
|  |     hasStringContent() { | ||
|  |         return utils.isStringNote(this.type, this.mime); | ||
|  |     } | ||
|  | 
 | ||
|  |     isContentAvailable() { | ||
|  |         return !this.revisionId // new note which was not encrypted yet | ||
|  |             || !this.isProtected | ||
|  |             || protectedSessionService.isProtectedSessionAvailable() | ||
|  |     } | ||
|  | 
 | ||
|  |     /* | ||
|  |      * Note revision content has quite special handling - it's not a separate entity, but a lazily loaded | ||
|  |      * part of Revision entity with its own sync. The reason behind this hybrid design is that | ||
|  |      * 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. | ||
|  |      * | ||
|  |      * This is the same approach as is used for Note's content. | ||
|  |      */ | ||
|  | 
 | ||
|  |     /** @returns {string|Buffer} */ | ||
|  |     getContent() { | ||
|  |         return this._getContent(); | ||
|  |     } | ||
|  | 
 | ||
|  |     /** | ||
|  |      * @param content | ||
|  |      * @param {object} [opts] | ||
|  |      * @param {object} [opts.forceSave=false] - will also save this BRevision entity | ||
|  |      */ | ||
|  |     setContent(content, opts) { | ||
|  |         this._setContent(content, opts); | ||
|  |     } | ||
|  | 
 | ||
|  |     /** @returns {BAttachment[]} */ | ||
|  |     getAttachments() { | ||
|  |         return sql.getRows(` | ||
|  |                 SELECT attachments.* | ||
|  |                 FROM attachments  | ||
|  |                 WHERE ownerId = ?  | ||
|  |                   AND isDeleted = 0`, [this.revisionId]) | ||
|  |             .map(row => new BAttachment(row)); | ||
|  |     } | ||
|  | 
 | ||
|  |     beforeSaving() { | ||
|  |         super.beforeSaving(); | ||
|  | 
 | ||
|  |         this.utcDateModified = dateUtils.utcNowDateTime(); | ||
|  |     } | ||
|  | 
 | ||
|  |     getPojo() { | ||
|  |         return { | ||
|  |             revisionId: this.revisionId, | ||
|  |             noteId: this.noteId, | ||
|  |             type: this.type, | ||
|  |             mime: this.mime, | ||
|  |             isProtected: this.isProtected, | ||
|  |             title: this.title, | ||
|  |             blobId: this.blobId, | ||
|  |             dateLastEdited: this.dateLastEdited, | ||
|  |             dateCreated: this.dateCreated, | ||
|  |             utcDateLastEdited: this.utcDateLastEdited, | ||
|  |             utcDateCreated: this.utcDateCreated, | ||
|  |             utcDateModified: this.utcDateModified, | ||
|  |             content: this.content, // used when retrieving full note revision to frontend | ||
|  |             contentLength: this.contentLength | ||
|  |         }; | ||
|  |     } | ||
|  | 
 | ||
|  |     getPojoToSave() { | ||
|  |         const pojo = this.getPojo(); | ||
|  |         delete pojo.content; // not getting persisted | ||
|  |         delete pojo.contentLength; // not getting persisted | ||
|  | 
 | ||
|  |         if (pojo.isProtected) { | ||
|  |             if (protectedSessionService.isProtectedSessionAvailable()) { | ||
|  |                 pojo.title = protectedSessionService.encrypt(this.title); | ||
|  |             } | ||
|  |             else { | ||
|  |                 // updating protected note outside of protected session means we will keep original ciphertexts | ||
|  |                 delete pojo.title; | ||
|  |             } | ||
|  |         } | ||
|  | 
 | ||
|  |         return pojo; | ||
|  |     } | ||
|  | } | ||
|  | 
 | ||
|  | module.exports = BRevision; | ||
|  | </code></pre> | ||
|  |         </article> | ||
|  |     </section> | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  | </div> | ||
|  | 
 | ||
|  | <nav> | ||
|  |     <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-sql.html">sql</a></li></ul><h3>Classes</h3><ul><li><a href="AbstractBeccaEntity.html">AbstractBeccaEntity</a></li><li><a href="BAttachment.html">BAttachment</a></li><li><a href="BAttribute.html">BAttribute</a></li><li><a href="BBranch.html">BBranch</a></li><li><a href="BEtapiToken.html">BEtapiToken</a></li><li><a href="BNote.html">BNote</a></li><li><a href="BOption.html">BOption</a></li><li><a href="BRecentNote.html">BRecentNote</a></li><li><a href="BRevision.html">BRevision</a></li><li><a href="BackendScriptApi.html">BackendScriptApi</a></li></ul> | ||
|  | </nav> | ||
|  | 
 | ||
|  | <br class="clear"> | ||
|  | 
 | ||
|  | <footer> | ||
|  |     Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 4.0.2</a> | ||
|  | </footer> | ||
|  | 
 | ||
|  | <script> prettyPrint(); </script> | ||
|  | <script src="scripts/linenumber.js"> </script> | ||
|  | </body> | ||
|  | </html> |