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							|  |  |  |     <title>JSDoc: Source: entities/attribute.js</title> | 
					
						
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							|  |  |  |     <h1 class="page-title">Source: entities/attribute.js</h1> | 
					
						
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							|  |  |  |     <section> | 
					
						
							|  |  |  |         <article> | 
					
						
							|  |  |  |             <pre class="prettyprint source linenums"><code>"use strict"; | 
					
						
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							|  |  |  | const Entity = require('./entity'); | 
					
						
							|  |  |  | const repository = require('../services/repository'); | 
					
						
							|  |  |  | const dateUtils = require('../services/date_utils'); | 
					
						
							|  |  |  | const sql = require('../services/sql'); | 
					
						
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							|  |  |  | /** | 
					
						
							|  |  |  |  * Attribute is key value pair owned by a note. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * @param {string} attributeId | 
					
						
							|  |  |  |  * @param {string} noteId | 
					
						
							|  |  |  |  * @param {string} type | 
					
						
							|  |  |  |  * @param {string} name | 
					
						
							|  |  |  |  * @param {string} value | 
					
						
							|  |  |  |  * @param {int} position | 
					
						
							|  |  |  |  * @param {boolean} isInheritable | 
					
						
							|  |  |  |  * @param {boolean} isDeleted | 
					
						
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										 |  |  |  * @param {string} utcDateCreated | 
					
						
							|  |  |  |  * @param {string} utcDateModified | 
					
						
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										 |  |  |  * | 
					
						
							|  |  |  |  * @extends Entity | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | class Attribute extends Entity { | 
					
						
							|  |  |  |     static get entityName() { return "attributes"; } | 
					
						
							|  |  |  |     static get primaryKeyName() { return "attributeId"; } | 
					
						
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										 |  |  |     static get hashedProperties() { return ["attributeId", "noteId", "type", "name", "value", "isInheritable", "isDeleted", "utcDateCreated"]; } | 
					
						
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							|  |  |  |     constructor(row) { | 
					
						
							|  |  |  |         super(row); | 
					
						
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							|  |  |  |         this.isInheritable = !!this.isInheritable; | 
					
						
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							|  |  |  |         if (this.isDefinition()) { | 
					
						
							|  |  |  |             try { | 
					
						
							|  |  |  |                 this.value = JSON.parse(this.value); | 
					
						
							|  |  |  |             } | 
					
						
							|  |  |  |             catch (e) { | 
					
						
							|  |  |  |             } | 
					
						
							|  |  |  |         } | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  |     /** | 
					
						
							|  |  |  |      * @returns {Promise<Note|null>} | 
					
						
							|  |  |  |      */ | 
					
						
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										 |  |  |     async getNote() { | 
					
						
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										 |  |  |         if (!this.__note) { | 
					
						
							|  |  |  |             this.__note = await repository.getEntity("SELECT * FROM notes WHERE noteId = ?", [this.noteId]); | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         return this.__note; | 
					
						
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										 |  |  |     } | 
					
						
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										 |  |  |     /** | 
					
						
							|  |  |  |      * @returns {Promise<Note|null>} | 
					
						
							|  |  |  |      */ | 
					
						
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										 |  |  |     async getTargetNote() { | 
					
						
							|  |  |  |         if (this.type !== 'relation') { | 
					
						
							|  |  |  |             throw new Error(`Attribute ${this.attributeId} is not relation`); | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         if (!this.value) { | 
					
						
							|  |  |  |             return null; | 
					
						
							|  |  |  |         } | 
					
						
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										 |  |  |         if (!this.__targetNote) { | 
					
						
							|  |  |  |             this.__targetNote = await repository.getEntity("SELECT * FROM notes WHERE noteId = ?", [this.value]); | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         return this.__targetNote; | 
					
						
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										 |  |  |     } | 
					
						
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										 |  |  |     /** | 
					
						
							|  |  |  |      * @return {boolean} | 
					
						
							|  |  |  |      */ | 
					
						
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										 |  |  |     isDefinition() { | 
					
						
							|  |  |  |         return this.type === 'label-definition' || this.type === 'relation-definition'; | 
					
						
							|  |  |  |     } | 
					
						
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							|  |  |  |     async beforeSaving() { | 
					
						
							|  |  |  |         if (!this.value) { | 
					
						
							|  |  |  |             // null value isn't allowed | 
					
						
							|  |  |  |             this.value = ""; | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         if (this.position === undefined) { | 
					
						
							|  |  |  |             this.position = 1 + await sql.getValue(`SELECT COALESCE(MAX(position), 0) FROM attributes WHERE noteId = ?`, [this.noteId]); | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         if (!this.isInheritable) { | 
					
						
							|  |  |  |             this.isInheritable = false; | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         if (!this.isDeleted) { | 
					
						
							|  |  |  |             this.isDeleted = false; | 
					
						
							|  |  |  |         } | 
					
						
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										 |  |  |         if (!this.utcDateCreated) { | 
					
						
							|  |  |  |             this.utcDateCreated = dateUtils.utcNowDateTime(); | 
					
						
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										 |  |  |         } | 
					
						
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							|  |  |  |         super.beforeSaving(); | 
					
						
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							|  |  |  |         if (this.isChanged) { | 
					
						
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										 |  |  |             this.utcDateModified = dateUtils.utcNowDateTime(); | 
					
						
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										 |  |  |         } | 
					
						
							|  |  |  |     } | 
					
						
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							|  |  |  |     // cannot be static! | 
					
						
							|  |  |  |     updatePojo(pojo) { | 
					
						
							|  |  |  |         delete pojo.isOwned; | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  | } | 
					
						
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							|  |  |  | module.exports = Attribute;</code></pre> | 
					
						
							|  |  |  |         </article> | 
					
						
							|  |  |  |     </section> | 
					
						
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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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