2018-03-25 09:39:15 +08:00
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"use strict";
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const Entity = require('./entity');
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2018-04-03 08:46:46 +08:00
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const dateUtils = require('../services/date_utils');
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2018-04-01 11:08:22 +08:00
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const repository = require('../services/repository');
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2018-04-04 10:15:28 +08:00
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const sql = require('../services/sql');
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2018-03-25 09:39:15 +08:00
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2018-08-23 05:37:06 +08:00
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/**
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* Branch represents note's placement in the tree - it's essentially pair of noteId and parentNoteId.
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* Each note can have multiple (at least one) branches, meaning it can be placed into multiple places in the tree.
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*
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* @param {string} branchId - primary key
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* @param {string} noteId
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* @param {string} parentNoteId
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* @param {int} notePosition
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* @param {string} prefix
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* @param {boolean} isExpanded
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* @param {boolean} isDeleted
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* @param {string} dateModified
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* @param {string} dateCreated
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*
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* @extends Entity
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*/
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2018-03-25 09:39:15 +08:00
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class Branch extends Entity {
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2018-08-17 05:00:04 +08:00
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static get entityName() { return "branches"; }
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2018-03-25 09:39:15 +08:00
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static get primaryKeyName() { return "branchId"; }
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2018-05-23 10:22:15 +08:00
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// notePosition is not part of hash because it would produce a lot of updates in case of reordering
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2018-08-13 02:04:48 +08:00
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static get hashedProperties() { return ["branchId", "noteId", "parentNoteId", "isDeleted", "prefix"]; }
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2018-04-01 10:15:06 +08:00
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2018-09-01 01:55:56 +08:00
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constructor(row = {}) {
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super(row);
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// used to detect move in note tree
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this.origParentNoteId = this.parentNoteId;
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}
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2018-04-01 11:08:22 +08:00
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async getNote() {
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return await repository.getEntity("SELECT * FROM notes WHERE noteId = ?", [this.noteId]);
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}
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2018-04-04 10:15:28 +08:00
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async beforeSaving() {
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if (this.notePosition === undefined) {
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const maxNotePos = await sql.getValue('SELECT MAX(notePosition) FROM branches WHERE parentNoteId = ? AND isDeleted = 0', [this.parentNoteId]);
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this.notePosition = maxNotePos === null ? 0 : maxNotePos + 1;
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}
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2018-04-02 05:38:24 +08:00
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if (!this.isDeleted) {
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this.isDeleted = false;
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}
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2018-05-27 00:38:25 +08:00
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if (!this.dateCreated) {
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this.dateCreated = dateUtils.nowDate();
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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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this.dateModified = dateUtils.nowDate();
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}
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2018-04-01 10:15:06 +08:00
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}
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2018-03-25 09:39:15 +08:00
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}
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module.exports = Branch;
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