2018-08-30 02:44:35 +08:00
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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>
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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 repository = require('../services/repository');
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const dateUtils = require('../services/date_utils');
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const sql = require('../services/sql');
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/**
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* Attribute is key value pair owned by a note.
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*
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2019-11-19 06:01:31 +08:00
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* @property {string} attributeId
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* @property {string} noteId
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* @property {string} type
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* @property {string} name
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* @property {string} value
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* @property {int} position
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* @property {boolean} isInheritable
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* @property {boolean} isDeleted
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2020-02-02 18:44:08 +08:00
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* @property {string|null} deleteId - ID identifying delete transaction
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2019-11-19 06:01:31 +08:00
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* @property {string} utcDateCreated
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* @property {string} utcDateModified
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2018-08-30 02:44:35 +08:00
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*
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* @extends Entity
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*/
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class Attribute extends Entity {
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static get entityName() { return "attributes"; }
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static get primaryKeyName() { return "attributeId"; }
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2019-03-15 03:49:10 +08:00
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static get hashedProperties() { return ["attributeId", "noteId", "type", "name", "value", "isInheritable", "isDeleted", "utcDateCreated"]; }
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2018-08-30 02:44:35 +08:00
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constructor(row) {
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super(row);
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this.isInheritable = !!this.isInheritable;
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if (this.isDefinition()) {
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try {
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this.value = JSON.parse(this.value);
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}
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catch (e) {
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}
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}
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}
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2018-11-13 19:50:08 +08:00
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/**
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* @returns {Promise<Note|null>}
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*/
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2018-08-30 02:44:35 +08:00
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async getNote() {
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2020-04-08 01:19:20 +08:00
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return await repository.getNote(this.noteId);
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2018-08-30 02:44:35 +08:00
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}
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2018-11-13 19:50:08 +08:00
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/**
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* @returns {Promise<Note|null>}
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*/
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2018-08-30 02:44:35 +08:00
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async getTargetNote() {
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if (this.type !== 'relation') {
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throw new Error(`Attribute ${this.attributeId} is not relation`);
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}
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if (!this.value) {
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return null;
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}
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2020-04-08 01:19:20 +08:00
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return await repository.getNote(this.value);
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2018-08-30 02:44:35 +08:00
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}
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2018-11-13 19:50:08 +08:00
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/**
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* @return {boolean}
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*/
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2018-08-30 02:44:35 +08:00
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isDefinition() {
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return this.type === 'label-definition' || this.type === 'relation-definition';
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}
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async beforeSaving() {
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if (!this.value) {
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2019-11-19 06:01:31 +08:00
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if (this.type === 'relation') {
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throw new Error(`Cannot save relation ${this.name} since it does not target any note.`);
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}
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2018-08-30 02:44:35 +08:00
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// null value isn't allowed
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this.value = "";
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}
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if (this.position === undefined) {
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this.position = 1 + await sql.getValue(`SELECT COALESCE(MAX(position), 0) FROM attributes WHERE noteId = ?`, [this.noteId]);
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}
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if (!this.isInheritable) {
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this.isInheritable = false;
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}
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if (!this.isDeleted) {
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this.isDeleted = false;
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}
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2019-03-15 03:49:10 +08:00
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if (!this.utcDateCreated) {
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this.utcDateCreated = dateUtils.utcNowDateTime();
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2018-08-30 02:44:35 +08:00
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}
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super.beforeSaving();
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if (this.isChanged) {
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2019-03-15 03:49:10 +08:00
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this.utcDateModified = dateUtils.utcNowDateTime();
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2018-08-30 02:44:35 +08:00
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}
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}
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2018-12-23 05:28:49 +08:00
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// cannot be static!
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updatePojo(pojo) {
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delete pojo.isOwned;
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2019-11-29 05:35:55 +08:00
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delete pojo.__note;
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2018-12-23 05:28:49 +08:00
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}
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2020-02-02 18:44:08 +08:00
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createClone(type, name, value) {
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return new Attribute({
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noteId: this.noteId,
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type: type,
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name: name,
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value: value,
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position: this.position,
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isInheritable: this.isInheritable,
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isDeleted: false,
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utcDateCreated: this.utcDateCreated,
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utcDateModified: this.utcDateModified
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});
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}
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2018-08-30 02:44:35 +08:00
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}
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module.exports = Attribute;</code></pre>
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</article>
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</section>
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</div>
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<nav>
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2019-08-21 03:40:47 +08:00
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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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2018-08-30 02:44:35 +08:00
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<footer>
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2020-04-08 01:19:20 +08:00
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Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.4</a>
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2018-08-30 02:44:35 +08:00
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