trilium/docs/backend_api/becca_entities_attribute.js.html
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<h1 class="page-title">Source: becca/entities/attribute.js</h1>
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<pre class="prettyprint source linenums"><code>"use strict";
const Note = require('./note.js');
const AbstractEntity = require("./abstract_entity.js");
const sql = require("../../services/sql.js");
const dateUtils = require("../../services/date_utils.js");
const promotedAttributeDefinitionParser = require("../../services/promoted_attribute_definition_parser");
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]) {
/** @param {string} */
this.attributeId = attributeId;
/** @param {string} */
this.noteId = noteId;
/** @param {string} */
this.type = type;
/** @param {string} */
this.name = name;
/** @param {int} */
this.position = position;
/** @param {string} */
this.value = value;
/** @param {boolean} */
this.isInheritable = !!isInheritable;
/** @param {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.notes[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' &amp;&amp; this.name === 'template');
}
get targetNoteId() { // alias
return this.type === 'relation' ? this.value : undefined;
}
isAutoLink() {
return this.type === 'relation' &amp;&amp; ['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' &amp;&amp; (this.name.startsWith('label:') || this.name.startsWith('relation:'));
}
getDefinition() {
return promotedAttributeDefinitionParser.parse(this.value);
}
getDefinedName() {
if (this.type === 'label' &amp;&amp; this.name.startsWith('label:')) {
return this.name.substr(6);
} else if (this.type === 'label' &amp;&amp; this.name.startsWith('relation:')) {
return this.name.substr(9);
} else {
return this.name;
}
}
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>
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