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- <title>JSDoc: Source: becca/entities/attribute.js</title>
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- <h1 class="page-title">Source: becca/entities/attribute.js</h1>
-
-
- <section>
- <article>
- <pre class="prettyprint source linenums"><code>"use strict";
- const Note = require('./note');
- const AbstractEntity = require("./abstract_entity");
- const sql = require("../../services/sql");
- const dateUtils = require("../../services/date_utils");
- const promotedAttributeDefinitionParser = require("../../services/promoted_attribute_definition_parser");
- /**
- * Attribute is an abstract concept which has two real uses - label (key - value pair)
- * and relation (representing named relationship between source and target note)
- */
- class Attribute extends AbstractEntity {
- static get entityName() { return "attributes"; }
- static get primaryKeyName() { return "attributeId"; }
- static get hashedProperties() { return ["attributeId", "noteId", "type", "name", "value", "isInheritable"]; }
- constructor(row) {
- super();
- if (!row) {
- return;
- }
- this.updateFromRow(row);
- this.init();
- }
- updateFromRow(row) {
- this.update([
- row.attributeId,
- row.noteId,
- row.type,
- row.name,
- row.value,
- row.isInheritable,
- row.position,
- row.utcDateModified
- ]);
- }
- update([attributeId, noteId, type, name, value, isInheritable, position, utcDateModified]) {
- /** @type {string} */
- this.attributeId = attributeId;
- /** @type {string} */
- this.noteId = noteId;
- /** @type {string} */
- this.type = type;
- /** @type {string} */
- this.name = name;
- /** @type {int} */
- this.position = position;
- /** @type {string} */
- this.value = value || "";
- /** @type {boolean} */
- this.isInheritable = !!isInheritable;
- /** @type {string} */
- this.utcDateModified = utcDateModified;
- return this;
- }
- init() {
- if (this.attributeId) {
- this.becca.attributes[this.attributeId] = this;
- }
- if (!(this.noteId in this.becca.notes)) {
- // entities can come out of order in sync, create skeleton which will be filled later
- this.becca.addNote(this.noteId, new Note({noteId: this.noteId}));
- }
- this.becca.notes[this.noteId].ownedAttributes.push(this);
- const key = `${this.type}-${this.name.toLowerCase()}`;
- this.becca.attributeIndex[key] = this.becca.attributeIndex[key] || [];
- this.becca.attributeIndex[key].push(this);
- const targetNote = this.targetNote;
- if (targetNote) {
- targetNote.targetRelations.push(this);
- }
- }
- get isAffectingSubtree() {
- return this.isInheritable
- || (this.type === 'relation' && this.name === 'template');
- }
- get targetNoteId() { // alias
- return this.type === 'relation' ? this.value : undefined;
- }
- isAutoLink() {
- return this.type === 'relation' && ['internalLink', 'imageLink', 'relationMapLink', 'includeNoteLink'].includes(this.name);
- }
- get note() {
- return this.becca.notes[this.noteId];
- }
- get targetNote() {
- if (this.type === 'relation') {
- return this.becca.notes[this.value];
- }
- }
- /**
- * @returns {Note|null}
- */
- getNote() {
- return this.becca.getNote(this.noteId);
- }
- /**
- * @returns {Note|null}
- */
- getTargetNote() {
- if (this.type !== 'relation') {
- throw new Error(`Attribute ${this.attributeId} is not relation`);
- }
- if (!this.value) {
- return null;
- }
- return this.becca.getNote(this.value);
- }
- /**
- * @return {boolean}
- */
- isDefinition() {
- return this.type === 'label' && (this.name.startsWith('label:') || this.name.startsWith('relation:'));
- }
- getDefinition() {
- return promotedAttributeDefinitionParser.parse(this.value);
- }
- getDefinedName() {
- if (this.type === 'label' && this.name.startsWith('label:')) {
- return this.name.substr(6);
- } else if (this.type === 'label' && this.name.startsWith('relation:')) {
- return this.name.substr(9);
- } else {
- return this.name;
- }
- }
- get isDeleted() {
- return !(this.attributeId in this.becca.attributes);
- }
- beforeSaving() {
- if (!this.value) {
- if (this.type === 'relation') {
- throw new Error(`Cannot save relation ${this.name} since it does not target any note.`);
- }
- // null value isn't allowed
- this.value = "";
- }
- if (this.position === undefined) {
- // TODO: can be calculated from becca
- this.position = 1 + sql.getValue(`SELECT COALESCE(MAX(position), 0) FROM attributes WHERE noteId = ?`, [this.noteId]);
- }
- if (!this.isInheritable) {
- this.isInheritable = false;
- }
- this.utcDateModified = dateUtils.utcNowDateTime();
- super.beforeSaving();
- this.becca.attributes[this.attributeId] = this;
- }
- getPojo() {
- return {
- attributeId: this.attributeId,
- noteId: this.noteId,
- type: this.type,
- name: this.name,
- position: this.position,
- value: this.value,
- isInheritable: this.isInheritable,
- utcDateModified: this.utcDateModified,
- isDeleted: false
- };
- }
- createClone(type, name, value, isInheritable) {
- return new Attribute({
- noteId: this.noteId,
- type: type,
- name: name,
- value: value,
- position: this.position,
- isInheritable: isInheritable,
- utcDateModified: this.utcDateModified
- });
- }
- }
- module.exports = Attribute;
- </code></pre>
- </article>
- </section>
- </div>
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- <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-sql.html">sql</a></li></ul><h3>Classes</h3><ul><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="EtapiToken.html">EtapiToken</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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