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							|  |  |  |     <title>JSDoc: Source: entities/entity.js</title> | 
					
						
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							|  |  |  |     <h1 class="page-title">Source: entities/entity.js</h1> | 
					
						
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							|  |  |  |     <section> | 
					
						
							|  |  |  |         <article> | 
					
						
							|  |  |  |             <pre class="prettyprint source linenums"><code>"use strict"; | 
					
						
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							|  |  |  | const utils = require('../services/utils'); | 
					
						
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							|  |  |  | class Entity { | 
					
						
							|  |  |  |     /** | 
					
						
							|  |  |  |      * @param {object} [row] - database row representing given entity | 
					
						
							|  |  |  |      */ | 
					
						
							|  |  |  |     constructor(row = {}) { | 
					
						
							|  |  |  |         for (const key in row) { | 
					
						
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										 |  |  |             // ! is used when joint-fetching notes and note_contents objects for performance | 
					
						
							|  |  |  |             if (!key.startsWith('!')) { | 
					
						
							|  |  |  |                 this[key] = row[key]; | 
					
						
							|  |  |  |             } | 
					
						
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										 |  |  |         } | 
					
						
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							|  |  |  |         if ('isDeleted' in this) { | 
					
						
							|  |  |  |             this.isDeleted = !!this.isDeleted; | 
					
						
							|  |  |  |         } | 
					
						
							|  |  |  |     } | 
					
						
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							|  |  |  |     beforeSaving() { | 
					
						
							|  |  |  |         this.generateIdIfNecessary(); | 
					
						
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							|  |  |  |         const origHash = this.hash; | 
					
						
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							|  |  |  |         this.hash = this.generateHash(); | 
					
						
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										 |  |  |         if (this.forcedChange) { | 
					
						
							|  |  |  |             this.isChanged = true; | 
					
						
							|  |  |  |             delete this.forcedChange; | 
					
						
							|  |  |  |         } | 
					
						
							|  |  |  |         else { | 
					
						
							|  |  |  |             this.isChanged = origHash !== this.hash; | 
					
						
							|  |  |  |         } | 
					
						
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										 |  |  |     } | 
					
						
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							|  |  |  |     generateIdIfNecessary() { | 
					
						
							|  |  |  |         if (!this[this.constructor.primaryKeyName]) { | 
					
						
							|  |  |  |             this[this.constructor.primaryKeyName] = utils.newEntityId(); | 
					
						
							|  |  |  |         } | 
					
						
							|  |  |  |     } | 
					
						
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							|  |  |  |     generateHash() { | 
					
						
							|  |  |  |         let contentToHash = ""; | 
					
						
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							|  |  |  |         for (const propertyName of this.constructor.hashedProperties) { | 
					
						
							|  |  |  |             contentToHash += "|" + this[propertyName]; | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         return utils.hash(contentToHash).substr(0, 10); | 
					
						
							|  |  |  |     } | 
					
						
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							|  |  |  |     async save() { | 
					
						
							|  |  |  |         await require('../services/repository').updateEntity(this); | 
					
						
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							|  |  |  |         return this; | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | module.exports = Entity;</code></pre> | 
					
						
							|  |  |  |         </article> | 
					
						
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