2018-08-03 04:48:21 +08:00
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"use strict";
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const Entity = require('./entity');
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const dateUtils = require('../services/date_utils');
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const sql = require('../services/sql');
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2018-08-23 05:37:06 +08:00
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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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2020-05-13 20:42:16 +08:00
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* @property {string} attributeId - immutable
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* @property {string} noteId - immutable
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* @property {string} type - immutable
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* @property {string} name - immutable
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2019-11-09 16:36:08 +08:00
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* @property {string} value
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* @property {int} position
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2020-05-13 20:42:16 +08:00
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* @property {boolean} isInheritable - immutable
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2019-11-09 16:36:08 +08:00
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* @property {boolean} isDeleted
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2020-01-03 17:48:36 +08:00
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* @property {string|null} deleteId - ID identifying delete transaction
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2019-11-09 16:36:08 +08:00
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* @property {string} utcDateCreated
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* @property {string} utcDateModified
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2018-08-23 05:37:06 +08:00
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*
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* @extends Entity
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*/
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2018-08-03 04:48:21 +08:00
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class Attribute extends Entity {
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2018-08-17 05:00:04 +08:00
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static get entityName() { return "attributes"; }
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2018-08-03 04:48:21 +08:00
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static get primaryKeyName() { return "attributeId"; }
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2019-03-13 03:58:31 +08:00
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static get hashedProperties() { return ["attributeId", "noteId", "type", "name", "value", "isInheritable", "isDeleted", "utcDateCreated"]; }
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2018-08-03 04:48:21 +08:00
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2018-08-06 14:59:26 +08:00
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constructor(row) {
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super(row);
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2018-08-07 17:38:00 +08:00
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this.isInheritable = !!this.isInheritable;
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2018-08-06 14:59:26 +08:00
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}
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2018-11-13 06:34:22 +08:00
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/**
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2020-07-26 05:24:48 +08:00
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* @returns {Note|null}
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2018-11-13 06:34:22 +08:00
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*/
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2020-06-20 18:31:38 +08:00
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getNote() {
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return this.repository.getNote(this.noteId);
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2018-08-03 04:48:21 +08:00
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}
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2018-11-13 06:34:22 +08:00
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/**
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2020-07-26 05:24:48 +08:00
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* @returns {Note|null}
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2018-11-13 06:34:22 +08:00
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*/
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2020-06-20 18:31:38 +08:00
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getTargetNote() {
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2018-08-10 02:08:00 +08:00
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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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2020-06-20 18:31:38 +08:00
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return this.repository.getNote(this.value);
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2018-08-10 02:08:00 +08:00
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}
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2018-11-13 06:34:22 +08:00
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/**
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* @return {boolean}
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*/
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2018-08-06 14:59:26 +08:00
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isDefinition() {
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2020-09-09 02:42:50 +08:00
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return this.type === 'label' && (this.name.startsWith('label:') || this.name.startsWith('relation:'));
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2018-08-06 14:59:26 +08:00
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}
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2018-08-03 04:48:21 +08:00
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2020-06-20 18:31:38 +08:00
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beforeSaving() {
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2018-08-03 04:48:21 +08:00
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if (!this.value) {
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2019-11-15 06:10:56 +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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2018-08-03 04:48:21 +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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2020-06-20 18:31:38 +08:00
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this.position = 1 + sql.getValue(`SELECT COALESCE(MAX(position), 0) FROM attributes WHERE noteId = ?`, [this.noteId]);
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2018-08-03 04:48:21 +08:00
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}
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2018-08-03 19:06:56 +08:00
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if (!this.isInheritable) {
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this.isInheritable = false;
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}
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2018-08-03 04:48:21 +08:00
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if (!this.isDeleted) {
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this.isDeleted = false;
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}
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2019-03-13 03:58:31 +08:00
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if (!this.utcDateCreated) {
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2019-03-14 05:43:59 +08:00
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this.utcDateCreated = dateUtils.utcNowDateTime();
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2018-08-03 04:48:21 +08:00
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}
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2018-08-06 14:59:26 +08:00
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super.beforeSaving();
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2018-08-13 02:04:48 +08:00
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if (this.isChanged) {
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2019-03-14 05:43:59 +08:00
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this.utcDateModified = dateUtils.utcNowDateTime();
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2018-08-13 02:04:48 +08:00
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}
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2018-08-03 04:48:21 +08:00
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}
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2018-11-30 17:20:03 +08:00
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2020-05-13 20:42:16 +08:00
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createClone(type, name, value, isInheritable) {
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2020-01-29 05:37:06 +08:00
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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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2020-05-13 20:42:16 +08:00
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isInheritable: isInheritable,
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2020-01-29 05:37:06 +08:00
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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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2018-08-03 04:48:21 +08:00
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}
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2020-05-12 05:57:39 +08:00
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module.exports = Attribute;
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