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							|  |  |  |     <title>JSDoc: Source: becca/entities/abstract_entity.js</title> | 
					
						
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							|  |  |  |     <h1 class="page-title">Source: becca/entities/abstract_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'); | 
					
						
							|  |  |  | const sql = require('../../services/sql'); | 
					
						
							|  |  |  | const entityChangesService = require('../../services/entity_changes'); | 
					
						
							|  |  |  | const eventService = require("../../services/events"); | 
					
						
							|  |  |  | const dateUtils = require("../../services/date_utils"); | 
					
						
							|  |  |  | const cls = require("../../services/cls"); | 
					
						
							|  |  |  | const log = require("../../services/log"); | 
					
						
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							|  |  |  | let becca = null; | 
					
						
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							|  |  |  | /** | 
					
						
							|  |  |  |  * Base class for all backend entities. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | class AbstractEntity { | 
					
						
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										 |  |  |     /** @protected */ | 
					
						
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										 |  |  |     beforeSaving() { | 
					
						
							|  |  |  |         this.generateIdIfNecessary(); | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  |     /** @protected */ | 
					
						
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										 |  |  |     generateIdIfNecessary() { | 
					
						
							|  |  |  |         if (!this[this.constructor.primaryKeyName]) { | 
					
						
							|  |  |  |             this[this.constructor.primaryKeyName] = utils.newEntityId(); | 
					
						
							|  |  |  |         } | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  |     /** @protected */ | 
					
						
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										 |  |  |     generateHash(isDeleted = false) { | 
					
						
							|  |  |  |         let contentToHash = ""; | 
					
						
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							|  |  |  |         for (const propertyName of this.constructor.hashedProperties) { | 
					
						
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										 |  |  |             contentToHash += `|${this[propertyName]}`; | 
					
						
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										 |  |  |         } | 
					
						
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							|  |  |  |         if (isDeleted) { | 
					
						
							|  |  |  |             contentToHash += "|deleted"; | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         return utils.hash(contentToHash).substr(0, 10); | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  |     /** @protected */ | 
					
						
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										 |  |  |     getUtcDateChanged() { | 
					
						
							|  |  |  |         return this.utcDateModified || this.utcDateCreated; | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  |     /** @protected */ | 
					
						
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										 |  |  |     get becca() { | 
					
						
							|  |  |  |         if (!becca) { | 
					
						
							|  |  |  |             becca = require('../becca'); | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         return becca; | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  |     /** @protected */ | 
					
						
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										 |  |  |     addEntityChange(isDeleted = false) { | 
					
						
							|  |  |  |         entityChangesService.addEntityChange({ | 
					
						
							|  |  |  |             entityName: this.constructor.entityName, | 
					
						
							|  |  |  |             entityId: this[this.constructor.primaryKeyName], | 
					
						
							|  |  |  |             hash: this.generateHash(isDeleted), | 
					
						
							|  |  |  |             isErased: false, | 
					
						
							|  |  |  |             utcDateChanged: this.getUtcDateChanged(), | 
					
						
							|  |  |  |             isSynced: this.constructor.entityName !== 'options' || !!this.isSynced | 
					
						
							|  |  |  |         }); | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  |     /** @protected */ | 
					
						
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										 |  |  |     getPojoToSave() { | 
					
						
							|  |  |  |         return this.getPojo(); | 
					
						
							|  |  |  |     } | 
					
						
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							|  |  |  |     /** | 
					
						
							|  |  |  |      * Saves entity - executes SQL, but doesn't commit the transaction on its own | 
					
						
							|  |  |  |      * | 
					
						
							|  |  |  |      * @returns {AbstractEntity} | 
					
						
							|  |  |  |      */ | 
					
						
							|  |  |  |     save() { | 
					
						
							|  |  |  |         const entityName = this.constructor.entityName; | 
					
						
							|  |  |  |         const primaryKeyName = this.constructor.primaryKeyName; | 
					
						
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							|  |  |  |         const isNewEntity = !this[primaryKeyName]; | 
					
						
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							|  |  |  |         if (this.beforeSaving) { | 
					
						
							|  |  |  |             this.beforeSaving(); | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         const pojo = this.getPojoToSave(); | 
					
						
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							|  |  |  |         sql.transactional(() => { | 
					
						
							|  |  |  |             sql.upsert(entityName, primaryKeyName, pojo); | 
					
						
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							|  |  |  |             if (entityName === 'recent_notes') { | 
					
						
							|  |  |  |                 return; | 
					
						
							|  |  |  |             } | 
					
						
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							|  |  |  |             this.addEntityChange(false); | 
					
						
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							|  |  |  |             if (!cls.isEntityEventsDisabled()) { | 
					
						
							|  |  |  |                 const eventPayload = { | 
					
						
							|  |  |  |                     entityName, | 
					
						
							|  |  |  |                     entity: this | 
					
						
							|  |  |  |                 }; | 
					
						
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							|  |  |  |                 if (isNewEntity) { | 
					
						
							|  |  |  |                     eventService.emit(eventService.ENTITY_CREATED, eventPayload); | 
					
						
							|  |  |  |                 } | 
					
						
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							|  |  |  |                 eventService.emit(eventService.ENTITY_CHANGED, eventPayload); | 
					
						
							|  |  |  |             } | 
					
						
							|  |  |  |         }); | 
					
						
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							|  |  |  |         return this; | 
					
						
							|  |  |  |     } | 
					
						
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							|  |  |  |     /** | 
					
						
							|  |  |  |      * Mark the entity as (soft) deleted. It will be completely erased later. | 
					
						
							|  |  |  |      * | 
					
						
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										 |  |  |      * This is a low level method, for notes and branches use `note.deleteNote()` and 'branch.deleteBranch()` instead. | 
					
						
							|  |  |  |      * | 
					
						
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										 |  |  |      * @param [deleteId=null] | 
					
						
							|  |  |  |      */ | 
					
						
							|  |  |  |     markAsDeleted(deleteId = null) { | 
					
						
							|  |  |  |         const entityId = this[this.constructor.primaryKeyName]; | 
					
						
							|  |  |  |         const entityName = this.constructor.entityName; | 
					
						
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							|  |  |  |         this.utcDateModified = dateUtils.utcNowDateTime(); | 
					
						
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							|  |  |  |         sql.execute(`UPDATE ${entityName} SET isDeleted = 1, deleteId = ?, utcDateModified = ? | 
					
						
							|  |  |  |                            WHERE ${this.constructor.primaryKeyName} = ?`, | 
					
						
							|  |  |  |             [deleteId, this.utcDateModified, entityId]); | 
					
						
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							|  |  |  |         if (this.dateModified) { | 
					
						
							|  |  |  |             this.dateModified = dateUtils.localNowDateTime(); | 
					
						
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							|  |  |  |             sql.execute(`UPDATE ${entityName} SET dateModified = ? WHERE ${this.constructor.primaryKeyName} = ?`, | 
					
						
							|  |  |  |                 [this.dateModified, entityId]); | 
					
						
							|  |  |  |         } | 
					
						
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							|  |  |  |         log.info(`Marking ${entityName} ${entityId} as deleted`); | 
					
						
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							|  |  |  |         this.addEntityChange(true); | 
					
						
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							|  |  |  |         eventService.emit(eventService.ENTITY_DELETED, { entityName, entityId, entity: this }); | 
					
						
							|  |  |  |     } | 
					
						
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							|  |  |  |     markAsDeletedSimple() { | 
					
						
							|  |  |  |         const entityId = this[this.constructor.primaryKeyName]; | 
					
						
							|  |  |  |         const entityName = this.constructor.entityName; | 
					
						
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							|  |  |  |         this.utcDateModified = dateUtils.utcNowDateTime(); | 
					
						
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							|  |  |  |         sql.execute(`UPDATE ${entityName} SET isDeleted = 1, utcDateModified = ? | 
					
						
							|  |  |  |                            WHERE ${this.constructor.primaryKeyName} = ?`, | 
					
						
							|  |  |  |             [this.utcDateModified, entityId]); | 
					
						
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							|  |  |  |         log.info(`Marking ${entityName} ${entityId} as deleted`); | 
					
						
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							|  |  |  |         this.addEntityChange(true); | 
					
						
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							|  |  |  |         eventService.emit(eventService.ENTITY_DELETED, { entityName, entityId, entity: this }); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | module.exports = AbstractEntity; | 
					
						
							|  |  |  | </code></pre> | 
					
						
							|  |  |  |         </article> | 
					
						
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