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< h1 class = "page-title" > Source: becca/entities/bnote.js< / h1 >
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< pre class = "prettyprint source linenums" > < code > "use strict";
const protectedSessionService = require('../../services/protected_session');
const log = require('../../services/log');
const sql = require('../../services/sql');
const utils = require('../../services/utils');
const dateUtils = require('../../services/date_utils');
const AbstractBeccaEntity = require("./abstract_becca_entity");
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const BRevision = require("./brevision");
const BAttachment = require("./battachment");
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const TaskContext = require("../../services/task_context");
const dayjs = require("dayjs");
const utc = require('dayjs/plugin/utc');
const eventService = require("../../services/events");
dayjs.extend(utc);
const LABEL = 'label';
const RELATION = 'relation';
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/**
* There are many different Note types, some of which are entirely opaque to the
* end user. Those types should be used only for checking against, they are
* not for direct use.
* @typedef {"file" | "image" | "search" | "noteMap" | "launcher" | "doc" | "contentWidget" | "text" | "relationMap" | "render" | "canvas" | "mermaid" | "book" | "webView" | "code"} NoteType
*/
/**
* @typedef {Object} NotePathRecord
* @property {boolean} isArchived
* @property {boolean} isInHoistedSubTree
* @property {Array< string>} notePath
* @property {boolean} isHidden
*/
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/**
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* Trilium's main entity, which can represent text note, image, code note, file attachment etc.
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*
* @extends AbstractBeccaEntity
*/
class BNote extends AbstractBeccaEntity {
static get entityName() { return "notes"; }
static get primaryKeyName() { return "noteId"; }
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static get hashedProperties() { return ["noteId", "title", "isProtected", "type", "mime", "blobId"]; }
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constructor(row) {
super();
if (!row) {
return;
}
this.updateFromRow(row);
this.init();
}
updateFromRow(row) {
this.update([
row.noteId,
row.title,
row.type,
row.mime,
row.isProtected,
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row.blobId,
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row.dateCreated,
row.dateModified,
row.utcDateCreated,
row.utcDateModified
]);
}
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update([noteId, title, type, mime, isProtected, blobId, dateCreated, dateModified, utcDateCreated, utcDateModified]) {
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// ------ Database persisted attributes ------
/** @type {string} */
this.noteId = noteId;
/** @type {string} */
this.title = title;
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/** @type {NoteType} */
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this.type = type;
/** @type {string} */
this.mime = mime;
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/** @type {boolean} */
this.isProtected = !!isProtected;
/** @type {string} */
this.blobId = blobId;
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/** @type {string} */
this.dateCreated = dateCreated || dateUtils.localNowDateTime();
/** @type {string} */
this.dateModified = dateModified;
/** @type {string} */
this.utcDateCreated = utcDateCreated || dateUtils.utcNowDateTime();
/** @type {string} */
this.utcDateModified = utcDateModified;
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/**
* set during the deletion operation, before it is completed (removed from becca completely)
* @type {boolean}
*/
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this.isBeingDeleted = false;
// ------ Derived attributes ------
/** @type {boolean} */
this.isDecrypted = !this.noteId || !this.isProtected;
this.decrypt();
/** @type {string|null} */
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this.__flatTextCache = null;
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return this;
}
init() {
/** @type {BBranch[]}
* @private */
this.parentBranches = [];
/** @type {BNote[]}
* @private */
this.parents = [];
/** @type {BNote[]}
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* @private */
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this.children = [];
/** @type {BAttribute[]}
* @private */
this.ownedAttributes = [];
/** @type {BAttribute[]|null}
* @private */
this.__attributeCache = null;
/** @type {BAttribute[]|null}
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* @private */
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this.__inheritableAttributeCache = null;
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/** @type {BAttribute[]}
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* @private */
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this.targetRelations = [];
this.becca.addNote(this.noteId, this);
/** @type {BNote[]|null}
* @private */
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this.__ancestorCache = null;
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// following attributes are filled during searching in the database
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/**
* size of the content in bytes
* @type {int|null}
* @private
*/
this.contentSize = null;
/**
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* size of the note content, attachment contents in bytes
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* @type {int|null}
* @private
*/
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this.contentAndAttachmentsSize = null;
/**
* size of the note content, attachment contents and revision contents in bytes
* @type {int|null}
* @private
*/
this.contentAndAttachmentsAndRevisionsSize = null;
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/**
* number of note revisions for this note
* @type {int|null}
* @private
*/
this.revisionCount = null;
}
isContentAvailable() {
return !this.noteId // new note which was not encrypted yet
|| !this.isProtected
|| protectedSessionService.isProtectedSessionAvailable()
}
getTitleOrProtected() {
return this.isContentAvailable() ? this.title : '[protected]';
}
/** @returns {BBranch[]} */
getParentBranches() {
return this.parentBranches;
}
/**
* Returns < i>strong< /i> (as opposed to < i>weak< /i>) parent branches. See isWeak for details.
*
* @returns {BBranch[]}
*/
getStrongParentBranches() {
return this.getParentBranches().filter(branch => !branch.isWeak);
}
/**
* @returns {BBranch[]}
* @deprecated use getParentBranches() instead
*/
getBranches() {
return this.parentBranches;
}
/** @returns {BNote[]} */
getParentNotes() {
return this.parents;
}
/** @returns {BNote[]} */
getChildNotes() {
return this.children;
}
/** @returns {boolean} */
hasChildren() {
return this.children & & this.children.length > 0;
}
/** @returns {BBranch[]} */
getChildBranches() {
return this.children.map(childNote => this.becca.getBranchFromChildAndParent(childNote.noteId, this.noteId));
}
/*
* Note content has quite special handling - it's not a separate entity, but a lazily loaded
* part of Note entity with its own sync. Reasons behind this hybrid design has been:
*
* - content can be quite large, and it's not necessary to load it / fill memory for any note access even if we don't need a content, especially for bulk operations like search
* - changes in the note metadata or title should not trigger note content sync (so we keep separate utcDateModified and entity changes records)
* - but to the user note content and title changes are one and the same - single dateModified (so all changes must go through Note and content is not a separate entity)
*/
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/** @returns {string|Buffer} */
getContent() {
return this._getContent();
}
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/**
* @returns {*}
* @throws Error in case of invalid JSON */
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getJsonContent() {
const content = this.getContent();
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if (!content || !content.trim()) {
return null;
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}
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return JSON.parse(content);
}
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/** @returns {*|null} valid object or null if the content cannot be parsed as JSON */
getJsonContentSafely() {
try {
return this.getJsonContent();
}
catch (e) {
return null;
}
}
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/**
* @param content
* @param {object} [opts]
* @param {object} [opts.forceSave=false] - will also save this BNote entity
* @param {object} [opts.forceFrontendReload=false] - override frontend heuristics on when to reload, instruct to reload
*/
setContent(content, opts) {
this._setContent(content, opts);
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eventService.emit(eventService.NOTE_CONTENT_CHANGE, { entity: this });
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}
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setJsonContent(content) {
this.setContent(JSON.stringify(content, null, '\t'));
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}
get dateCreatedObj() {
return this.dateCreated === null ? null : dayjs(this.dateCreated);
}
get utcDateCreatedObj() {
return this.utcDateCreated === null ? null : dayjs.utc(this.utcDateCreated);
}
get dateModifiedObj() {
return this.dateModified === null ? null : dayjs(this.dateModified);
}
get utcDateModifiedObj() {
return this.utcDateModified === null ? null : dayjs.utc(this.utcDateModified);
}
/** @returns {boolean} true if this note is the root of the note tree. Root note has "root" noteId */
isRoot() {
return this.noteId === 'root';
}
/** @returns {boolean} true if this note is of application/json content type */
isJson() {
return this.mime === "application/json";
}
/** @returns {boolean} true if this note is JavaScript (code or attachment) */
isJavaScript() {
return (this.type === "code" || this.type === "file" || this.type === 'launcher')
& & (this.mime.startsWith("application/javascript")
|| this.mime === "application/x-javascript"
|| this.mime === "text/javascript");
}
/** @returns {boolean} true if this note is HTML */
isHtml() {
return ["code", "file", "render"].includes(this.type)
& & this.mime === "text/html";
}
/** @returns {boolean} true if this note is an image */
isImage() {
return this.type === 'image'
|| (this.type === 'file' & & this.mime?.startsWith('image/'));
}
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/** @deprecated use hasStringContent() instead */
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isStringNote() {
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return this.hasStringContent();
}
/** @returns {boolean} true if the note has string content (not binary) */
hasStringContent() {
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return utils.isStringNote(this.type, this.mime);
}
/** @returns {string|null} JS script environment - either "frontend" or "backend" */
getScriptEnv() {
if (this.isHtml() || (this.isJavaScript() & & this.mime.endsWith('env=frontend'))) {
return "frontend";
}
if (this.type === 'render') {
return "frontend";
}
if (this.isJavaScript() & & this.mime.endsWith('env=backend')) {
return "backend";
}
return null;
}
/**
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* Beware that the method must not create a copy of the array, but actually returns its internal array
* (for performance reasons)
*
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* @param {string} [type] - (optional) attribute type to filter
* @param {string} [name] - (optional) attribute name to filter
* @returns {BAttribute[]} all note's attributes, including inherited ones
*/
getAttributes(type, name) {
this.__validateTypeName(type, name);
this.__ensureAttributeCacheIsAvailable();
if (type & & name) {
return this.__attributeCache.filter(attr => attr.name === name & & attr.type === type);
}
else if (type) {
return this.__attributeCache.filter(attr => attr.type === type);
}
else if (name) {
return this.__attributeCache.filter(attr => attr.name === name);
}
else {
return this.__attributeCache;
}
}
/** @private */
__ensureAttributeCacheIsAvailable() {
if (!this.__attributeCache) {
this.__getAttributes([]);
}
}
/** @private */
__getAttributes(path) {
if (path.includes(this.noteId)) {
return [];
}
if (!this.__attributeCache) {
const parentAttributes = this.ownedAttributes.slice();
const newPath = [...path, this.noteId];
// inheritable attrs on root are typically not intended to be applied to hidden subtree #3537
if (this.noteId !== 'root' & & this.noteId !== '_hidden') {
for (const parentNote of this.parents) {
parentAttributes.push(...parentNote.__getInheritableAttributes(newPath));
}
}
const templateAttributes = [];
for (const ownedAttr of parentAttributes) { // parentAttributes so we process also inherited templates
if (ownedAttr.type === 'relation' & & ['template', 'inherit'].includes(ownedAttr.name)) {
const templateNote = this.becca.notes[ownedAttr.value];
if (templateNote) {
templateAttributes.push(
...templateNote.__getAttributes(newPath)
// template attr is used as a marker for templates, but it's not meant to be inherited
.filter(attr => !(attr.type === 'label' & & (attr.name === 'template' || attr.name === 'workspacetemplate')))
);
}
}
}
this.__attributeCache = [];
const addedAttributeIds = new Set();
for (const attr of parentAttributes.concat(templateAttributes)) {
if (!addedAttributeIds.has(attr.attributeId)) {
addedAttributeIds.add(attr.attributeId);
this.__attributeCache.push(attr);
}
}
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this.__inheritableAttributeCache = [];
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for (const attr of this.__attributeCache) {
if (attr.isInheritable) {
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this.__inheritableAttributeCache.push(attr);
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}
}
}
return this.__attributeCache;
}
/**
* @private
* @returns {BAttribute[]}
*/
__getInheritableAttributes(path) {
if (path.includes(this.noteId)) {
return [];
}
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if (!this.__inheritableAttributeCache) {
this.__getAttributes(path); // will refresh also this.__inheritableAttributeCache
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}
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return this.__inheritableAttributeCache;
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}
__validateTypeName(type, name) {
if (type & & type !== 'label' & & type !== 'relation') {
throw new Error(`Unrecognized attribute type '${type}'. Only 'label' and 'relation' are possible values.`);
}
if (name) {
const firstLetter = name.charAt(0);
if (firstLetter === '#' || firstLetter === '~') {
throw new Error(`Detect '#' or '~' in the attribute's name. In the API, attribute names should be set without these characters.`);
}
}
}
/**
* @param type
* @param name
* @param [value]
* @returns {boolean}
*/
hasAttribute(type, name, value = null) {
return !!this.getAttributes().find(attr =>
attr.name === name
& & (value === undefined || value === null || attr.value === value)
& & attr.type === type
);
}
getAttributeCaseInsensitive(type, name, value) {
name = name.toLowerCase();
value = value ? value.toLowerCase() : null;
return this.getAttributes().find(
attr => attr.name.toLowerCase() === name
& & (!value || attr.value.toLowerCase() === value)
& & attr.type === type);
}
getRelationTarget(name) {
const relation = this.getAttributes().find(attr => attr.name === name & & attr.type === 'relation');
return relation ? relation.targetNote : null;
}
/**
* @param {string} name - label name
* @param {string} [value] - label value
* @returns {boolean} true if label exists (including inherited)
*/
hasLabel(name, value) { return this.hasAttribute(LABEL, name, value); }
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/**
* @param {string} name - label name
* @returns {boolean} true if label exists (including inherited) and does not have "false" value.
*/
isLabelTruthy(name) {
const label = this.getLabel(name);
if (!label) {
return false;
}
return label & & label.value !== 'false';
}
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/**
* @param {string} name - label name
* @param {string} [value] - label value
* @returns {boolean} true if label exists (excluding inherited)
*/
hasOwnedLabel(name, value) { return this.hasOwnedAttribute(LABEL, name, value); }
/**
* @param {string} name - relation name
* @param {string} [value] - relation value
* @returns {boolean} true if relation exists (including inherited)
*/
hasRelation(name, value) { return this.hasAttribute(RELATION, name, value); }
/**
* @param {string} name - relation name
* @param {string} [value] - relation value
* @returns {boolean} true if relation exists (excluding inherited)
*/
hasOwnedRelation(name, value) { return this.hasOwnedAttribute(RELATION, name, value); }
/**
* @param {string} name - label name
* @returns {BAttribute|null} label if it exists, null otherwise
*/
getLabel(name) { return this.getAttribute(LABEL, name); }
/**
* @param {string} name - label name
* @returns {BAttribute|null} label if it exists, null otherwise
*/
getOwnedLabel(name) { return this.getOwnedAttribute(LABEL, name); }
/**
* @param {string} name - relation name
* @returns {BAttribute|null} relation if it exists, null otherwise
*/
getRelation(name) { return this.getAttribute(RELATION, name); }
/**
* @param {string} name - relation name
* @returns {BAttribute|null} relation if it exists, null otherwise
*/
getOwnedRelation(name) { return this.getOwnedAttribute(RELATION, name); }
/**
* @param {string} name - label name
* @returns {string|null} label value if label exists, null otherwise
*/
getLabelValue(name) { return this.getAttributeValue(LABEL, name); }
/**
* @param {string} name - label name
* @returns {string|null} label value if label exists, null otherwise
*/
getOwnedLabelValue(name) { return this.getOwnedAttributeValue(LABEL, name); }
/**
* @param {string} name - relation name
* @returns {string|null} relation value if relation exists, null otherwise
*/
getRelationValue(name) { return this.getAttributeValue(RELATION, name); }
/**
* @param {string} name - relation name
* @returns {string|null} relation value if relation exists, null otherwise
*/
getOwnedRelationValue(name) { return this.getOwnedAttributeValue(RELATION, name); }
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @param {string} [value] - attribute value
* @returns {boolean} true if note has an attribute with given type and name (excluding inherited)
*/
hasOwnedAttribute(type, name, value) {
return !!this.getOwnedAttribute(type, name, value);
}
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
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* @returns {BAttribute} attribute of the given type and name. If there are more such attributes, first is returned.
* Returns null if there's no such attribute belonging to this note.
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*/
getAttribute(type, name) {
const attributes = this.getAttributes();
return attributes.find(attr => attr.name === name & & attr.type === type);
}
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @returns {string|null} attribute value of given type and name or null if no such attribute exists.
*/
getAttributeValue(type, name) {
const attr = this.getAttribute(type, name);
return attr ? attr.value : null;
}
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @returns {string|null} attribute value of given type and name or null if no such attribute exists.
*/
getOwnedAttributeValue(type, name) {
const attr = this.getOwnedAttribute(type, name);
return attr ? attr.value : null;
}
/**
* @param {string} [name] - label name to filter
* @returns {BAttribute[]} all note's labels (attributes with type label), including inherited ones
*/
getLabels(name) {
return this.getAttributes(LABEL, name);
}
/**
* @param {string} [name] - label name to filter
* @returns {string[]} all note's label values, including inherited ones
*/
getLabelValues(name) {
return this.getLabels(name).map(l => l.value);
}
/**
* @param {string} [name] - label name to filter
* @returns {BAttribute[]} all note's labels (attributes with type label), excluding inherited ones
*/
getOwnedLabels(name) {
return this.getOwnedAttributes(LABEL, name);
}
/**
* @param {string} [name] - label name to filter
* @returns {string[]} all note's label values, excluding inherited ones
*/
getOwnedLabelValues(name) {
return this.getOwnedAttributes(LABEL, name).map(l => l.value);
}
/**
* @param {string} [name] - relation name to filter
* @returns {BAttribute[]} all note's relations (attributes with type relation), including inherited ones
*/
getRelations(name) {
return this.getAttributes(RELATION, name);
}
/**
* @param {string} [name] - relation name to filter
* @returns {BAttribute[]} all note's relations (attributes with type relation), excluding inherited ones
*/
getOwnedRelations(name) {
return this.getOwnedAttributes(RELATION, name);
}
/**
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* Beware that the method must not create a copy of the array, but actually returns its internal array
* (for performance reasons)
*
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* @param {string|null} [type] - (optional) attribute type to filter
* @param {string|null} [name] - (optional) attribute name to filter
* @param {string|null} [value] - (optional) attribute value to filter
* @returns {BAttribute[]} note's "owned" attributes - excluding inherited ones
*/
getOwnedAttributes(type = null, name = null, value = null) {
this.__validateTypeName(type, name);
if (type & & name & & value !== undefined & & value !== null) {
return this.ownedAttributes.filter(attr => attr.name === name & & attr.value === value & & attr.type === type);
}
else if (type & & name) {
return this.ownedAttributes.filter(attr => attr.name === name & & attr.type === type);
}
else if (type) {
return this.ownedAttributes.filter(attr => attr.type === type);
}
else if (name) {
return this.ownedAttributes.filter(attr => attr.name === name);
}
else {
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return this.ownedAttributes;
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}
}
/**
* @returns {BAttribute} attribute belonging to this specific note (excludes inherited attributes)
*
* This method can be significantly faster than the getAttribute()
*/
getOwnedAttribute(type, name, value = null) {
const attrs = this.getOwnedAttributes(type, name, value);
return attrs.length > 0 ? attrs[0] : null;
}
get isArchived() {
return this.hasAttribute('label', 'archived');
}
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areAllNotePathsArchived() {
// there's a slight difference between note being itself archived and all its note paths being archived
// - note is archived when it itself has an archived label or inherits it
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// - note does not have or inherit archived label, but each note path contains a note with (non-inheritable)
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// archived label
const bestNotePathRecord = this.getSortedNotePathRecords()[0];
if (!bestNotePathRecord) {
throw new Error(`No note path available for note '${this.noteId}'`);
}
return bestNotePathRecord.isArchived;
}
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hasInheritableArchivedLabel() {
for (const attr of this.getAttributes()) {
if (attr.name === 'archived' & & attr.type === LABEL & & attr.isInheritable) {
return true;
}
}
return false;
}
// will sort the parents so that the non-archived are first and archived at the end
// this is done so that the non-archived paths are always explored as first when looking for note path
sortParents() {
this.parentBranches.sort((a, b) => {
if (a.parentNote?.isArchived) {
return 1;
} else if (a.parentNote?.isHiddenCompletely()) {
return 1;
} else {
return -1;
}
});
this.parents = this.parentBranches
.map(branch => branch.parentNote)
.filter(note => !!note);
}
sortChildren() {
if (this.children.length === 0) {
return;
}
const becca = this.becca;
this.children.sort((a, b) => {
const aBranch = becca.getBranchFromChildAndParent(a.noteId, this.noteId);
const bBranch = becca.getBranchFromChildAndParent(b.noteId, this.noteId);
return aBranch?.notePosition < bBranch?.notePosition ? -1 : 1;
});
}
/**
* This is used for:
* - fast searching
* - note similarity evaluation
*
* @returns {string} - returns flattened textual representation of note, prefixes and attributes
*/
getFlatText() {
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if (!this.__flatTextCache) {
this.__flatTextCache = `${this.noteId} ${this.type} ${this.mime} `;
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for (const branch of this.parentBranches) {
if (branch.prefix) {
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this.__flatTextCache += `${branch.prefix} `;
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}
}
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this.__flatTextCache += `${this.title} `;
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for (const attr of this.getAttributes()) {
// it's best to use space as separator since spaces are filtered from the search string by the tokenization into words
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this.__flatTextCache += `${attr.type === 'label' ? '#' : '~'}${attr.name}`;
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if (attr.value) {
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this.__flatTextCache += `=${attr.value}`;
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}
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this.__flatTextCache += ' ';
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}
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this.__flatTextCache = utils.normalize(this.__flatTextCache);
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}
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return this.__flatTextCache;
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}
invalidateThisCache() {
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this.__flatTextCache = null;
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this.__attributeCache = null;
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this.__inheritableAttributeCache = null;
this.__ancestorCache = null;
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}
invalidateSubTree(path = []) {
if (path.includes(this.noteId)) {
return;
}
this.invalidateThisCache();
if (this.children.length || this.targetRelations.length) {
path = [...path, this.noteId];
}
for (const childNote of this.children) {
childNote.invalidateSubTree(path);
}
for (const targetRelation of this.targetRelations) {
if (targetRelation.name === 'template' || targetRelation.name === 'inherit') {
const note = targetRelation.note;
if (note) {
note.invalidateSubTree(path);
}
}
}
}
getRelationDefinitions() {
return this.getLabels()
.filter(l => l.name.startsWith("relation:"));
}
getLabelDefinitions() {
return this.getLabels()
.filter(l => l.name.startsWith("relation:"));
}
isInherited() {
return !!this.targetRelations.find(rel => rel.name === 'template' || rel.name === 'inherit');
}
/** @returns {BNote[]} */
getSubtreeNotesIncludingTemplated() {
const set = new Set();
function inner(note) {
// _hidden is not counted as subtree for the purpose of inheritance
if (set.has(note) || note.noteId === '_hidden') {
return;
}
set.add(note);
for (const childNote of note.children) {
inner(childNote);
}
for (const targetRelation of note.targetRelations) {
if (targetRelation.name === 'template' || targetRelation.name === 'inherit') {
const targetNote = targetRelation.note;
if (targetNote) {
inner(targetNote);
}
}
}
}
inner(this);
return Array.from(set);
}
/** @returns {BNote[]} */
getSearchResultNotes() {
if (this.type !== 'search') {
return [];
}
try {
const searchService = require("../../services/search/services/search");
const {searchResultNoteIds} = searchService.searchFromNote(this);
const becca = this.becca;
return searchResultNoteIds
.map(resultNoteId => becca.notes[resultNoteId])
.filter(note => !!note);
}
catch (e) {
log.error(`Could not resolve search note ${this.noteId}: ${e.message}`);
return [];
}
}
/**
* @returns {{notes: BNote[], relationships: Array.< {parentNoteId: string, childNoteId: string}>}}
*/
getSubtree({includeArchived = true, includeHidden = false, resolveSearch = false} = {}) {
const noteSet = new Set();
const relationships = []; // list of tuples parentNoteId -> childNoteId
function resolveSearchNote(searchNote) {
try {
for (const resultNote of searchNote.getSearchResultNotes()) {
addSubtreeNotesInner(resultNote, searchNote);
}
}
catch (e) {
log.error(`Could not resolve search note ${searchNote?.noteId}: ${e.message}`);
}
}
function addSubtreeNotesInner(note, parentNote = null) {
if (note.noteId === '_hidden' & & !includeHidden) {
return;
}
if (parentNote) {
// this needs to happen first before noteSet check to include all clone relationships
relationships.push({
parentNoteId: parentNote.noteId,
childNoteId: note.noteId
});
}
if (noteSet.has(note)) {
return;
}
if (!includeArchived & & note.isArchived) {
return;
}
noteSet.add(note);
if (note.type === 'search') {
if (resolveSearch) {
resolveSearchNote(note);
}
}
else {
for (const childNote of note.children) {
addSubtreeNotesInner(childNote, note);
}
}
}
addSubtreeNotesInner(this);
return {
notes: Array.from(noteSet),
relationships
};
}
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/** @returns {string[]} - includes the subtree root note as well */
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getSubtreeNoteIds({includeArchived = true, includeHidden = false, resolveSearch = false} = {}) {
return this.getSubtree({includeArchived, includeHidden, resolveSearch})
.notes
.map(note => note.noteId);
}
/** @deprecated use getSubtreeNoteIds() instead */
getDescendantNoteIds() {
return this.getSubtreeNoteIds();
}
get parentCount() {
return this.parents.length;
}
get childrenCount() {
return this.children.length;
}
get labelCount() {
return this.getAttributes().filter(attr => attr.type === 'label').length;
}
get ownedLabelCount() {
return this.ownedAttributes.filter(attr => attr.type === 'label').length;
}
get relationCount() {
return this.getAttributes().filter(attr => attr.type === 'relation' & & !attr.isAutoLink()).length;
}
get relationCountIncludingLinks() {
return this.getAttributes().filter(attr => attr.type === 'relation').length;
}
get ownedRelationCount() {
return this.ownedAttributes.filter(attr => attr.type === 'relation' & & !attr.isAutoLink()).length;
}
get ownedRelationCountIncludingLinks() {
return this.ownedAttributes.filter(attr => attr.type === 'relation').length;
}
get targetRelationCount() {
return this.targetRelations.filter(attr => !attr.isAutoLink()).length;
}
get targetRelationCountIncludingLinks() {
return this.targetRelations.length;
}
get attributeCount() {
return this.getAttributes().length;
}
get ownedAttributeCount() {
return this.getOwnedAttributes().length;
}
/** @returns {BNote[]} */
getAncestors() {
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if (!this.__ancestorCache) {
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const noteIds = new Set();
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this.__ancestorCache = [];
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for (const parent of this.parents) {
if (noteIds.has(parent.noteId)) {
continue;
}
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this.__ancestorCache.push(parent);
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noteIds.add(parent.noteId);
for (const ancestorNote of parent.getAncestors()) {
if (!noteIds.has(ancestorNote.noteId)) {
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this.__ancestorCache.push(ancestorNote);
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noteIds.add(ancestorNote.noteId);
}
}
}
}
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return this.__ancestorCache;
}
/** @returns {string[]} */
getAncestorNoteIds() {
return this.getAncestors().map(note => note.noteId);
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}
/** @returns {boolean} */
hasAncestor(ancestorNoteId) {
for (const ancestorNote of this.getAncestors()) {
if (ancestorNote.noteId === ancestorNoteId) {
return true;
}
}
return false;
}
isInHiddenSubtree() {
return this.noteId === '_hidden' || this.hasAncestor('_hidden');
}
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/** @returns {BAttribute[]} */
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getTargetRelations() {
return this.targetRelations;
}
/** @returns {BNote[]} - returns only notes which are templated, does not include their subtrees
* in effect returns notes which are influenced by note's non-inheritable attributes */
getInheritingNotes() {
const arr = [this];
for (const targetRelation of this.targetRelations) {
if (targetRelation.name === 'template' || targetRelation.name === 'inherit') {
const note = targetRelation.note;
if (note) {
arr.push(note);
}
}
}
return arr;
}
getDistanceToAncestor(ancestorNoteId) {
if (this.noteId === ancestorNoteId) {
return 0;
}
let minDistance = 999999;
for (const parent of this.parents) {
minDistance = Math.min(minDistance, parent.getDistanceToAncestor(ancestorNoteId) + 1);
}
return minDistance;
}
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/** @returns {BRevision[]} */
getRevisions() {
return sql.getRows("SELECT * FROM revisions WHERE noteId = ?", [this.noteId])
.map(row => new BRevision(row));
}
/** @returns {BAttachment[]} */
getAttachments(opts = {}) {
opts.includeContentLength = !!opts.includeContentLength;
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// from testing, it looks like calculating length does not make a difference in performance even on large-ish DB
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// given that we're always fetching attachments only for a specific note, we might just do it always
const query = opts.includeContentLength
? `SELECT attachments.*, LENGTH(blobs.content) AS contentLength
FROM attachments
JOIN blobs USING (blobId)
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WHERE ownerId = ? AND isDeleted = 0
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ORDER BY position`
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: `SELECT * FROM attachments WHERE ownerId = ? AND isDeleted = 0 ORDER BY position`;
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return sql.getRows(query, [this.noteId])
.map(row => new BAttachment(row));
}
/** @returns {BAttachment|null} */
getAttachmentById(attachmentId, opts = {}) {
opts.includeContentLength = !!opts.includeContentLength;
const query = opts.includeContentLength
? `SELECT attachments.*, LENGTH(blobs.content) AS contentLength
FROM attachments
JOIN blobs USING (blobId)
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WHERE ownerId = ? AND attachmentId = ? AND isDeleted = 0`
: `SELECT * FROM attachments WHERE ownerId = ? AND attachmentId = ? AND isDeleted = 0`;
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return sql.getRows(query, [this.noteId, attachmentId])
.map(row => new BAttachment(row))[0];
}
/** @returns {BAttachment[]} */
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getAttachmentsByRole(role) {
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return sql.getRows(`
SELECT attachments.*
FROM attachments
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WHERE ownerId = ?
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AND role = ?
AND isDeleted = 0
ORDER BY position`, [this.noteId, role])
.map(row => new BAttachment(row));
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}
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/** @returns {BAttachment} */
getAttachmentByTitle(title) {
return sql.getRows(`
SELECT attachments.*
FROM attachments
WHERE ownerId = ?
AND title = ?
AND isDeleted = 0
ORDER BY position`, [this.noteId, title])
.map(row => new BAttachment(row))[0];
}
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/**
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* Gives all possible note paths leading to this note. Paths containing search note are ignored (could form cycles)
*
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* @returns {string[][]} - array of notePaths (each represented by array of noteIds constituting the particular note path)
*/
getAllNotePaths() {
if (this.noteId === 'root') {
return [['root']];
}
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const parentNotes = this.getParentNotes();
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const notePaths = parentNotes.length === 1
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? parentNotes[0].getAllNotePaths() // optimization for the most common case
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: parentNotes.flatMap(parentNote => parentNote.getAllNotePaths());
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for (const notePath of notePaths) {
notePath.push(this.noteId);
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}
return notePaths;
}
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/**
* @param {string} [hoistedNoteId='root']
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* @return {Array< NotePathRecord>}
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*/
getSortedNotePathRecords(hoistedNoteId = 'root') {
const isHoistedRoot = hoistedNoteId === 'root';
const notePaths = this.getAllNotePaths().map(path => ({
notePath: path,
isInHoistedSubTree: isHoistedRoot || path.includes(hoistedNoteId),
isArchived: path.some(noteId => this.becca.notes[noteId].isArchived),
isHidden: path.includes('_hidden')
}));
notePaths.sort((a, b) => {
if (a.isInHoistedSubTree !== b.isInHoistedSubTree) {
return a.isInHoistedSubTree ? -1 : 1;
} else if (a.isArchived !== b.isArchived) {
return a.isArchived ? 1 : -1;
} else if (a.isHidden !== b.isHidden) {
return a.isHidden ? 1 : -1;
} else {
return a.notePath.length - b.notePath.length;
}
});
return notePaths;
}
/**
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* Returns a note path considered to be the "best"
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*
* @param {string} [hoistedNoteId='root']
* @return {string[]} array of noteIds constituting the particular note path
*/
getBestNotePath(hoistedNoteId = 'root') {
return this.getSortedNotePathRecords(hoistedNoteId)[0]?.notePath;
}
/**
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* Returns a note path considered to be the "best"
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*
* @param {string} [hoistedNoteId='root']
* @return {string} serialized note path (e.g. 'root/a1h315/js725h')
*/
getBestNotePathString(hoistedNoteId = 'root') {
const notePath = this.getBestNotePath(hoistedNoteId);
return notePath?.join("/");
}
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/**
* @return boolean - true if there's no non-hidden path, note is not cloned to the visible tree
*/
isHiddenCompletely() {
if (this.noteId === 'root') {
return false;
}
for (const parentNote of this.parents) {
if (parentNote.noteId === 'root') {
return false;
} else if (parentNote.noteId === '_hidden') {
continue;
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} else if (!parentNote.isHiddenCompletely()) {
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return false;
}
}
return true;
}
/**
* @param ancestorNoteId
* @returns {boolean} - true if ancestorNoteId occurs in at least one of the note's paths
*/
isDescendantOfNote(ancestorNoteId) {
const notePaths = this.getAllNotePaths();
return notePaths.some(path => path.includes(ancestorNoteId));
}
/**
* Update's given attribute's value or creates it if it doesn't exist
*
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @param {string} [value] - attribute value (optional)
*/
setAttribute(type, name, value) {
const attributes = this.getOwnedAttributes();
const attr = attributes.find(attr => attr.type === type & & attr.name === name);
value = value?.toString() || "";
if (attr) {
if (attr.value !== value) {
attr.value = value;
attr.save();
}
}
else {
const BAttribute = require("./battribute");
new BAttribute({
noteId: this.noteId,
type: type,
name: name,
value: value
}).save();
}
}
/**
* Removes given attribute name-value pair if it exists.
*
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @param {string} [value] - attribute value (optional)
*/
removeAttribute(type, name, value) {
const attributes = this.getOwnedAttributes();
for (const attribute of attributes) {
if (attribute.type === type & & attribute.name === name & & (value === undefined || value === attribute.value)) {
attribute.markAsDeleted();
}
}
}
/**
* Adds a new attribute to this note. The attribute is saved and returned.
* See addLabel, addRelation for more specific methods.
*
* @param {string} type - attribute type (label / relation)
* @param {string} name - name of the attribute, not including the leading ~/#
* @param {string} [value] - value of the attribute - text for labels, target note ID for relations; optional.
* @param {boolean} [isInheritable=false]
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* @param {int|null} [position]
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* @returns {BAttribute}
*/
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addAttribute(type, name, value = "", isInheritable = false, position = null) {
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const BAttribute = require("./battribute");
return new BAttribute({
noteId: this.noteId,
type: type,
name: name,
value: value,
isInheritable: isInheritable,
position: position
}).save();
}
/**
* Adds a new label to this note. The label attribute is saved and returned.
*
* @param {string} name - name of the label, not including the leading #
* @param {string} [value] - text value of the label; optional
* @param {boolean} [isInheritable=false]
* @returns {BAttribute}
*/
addLabel(name, value = "", isInheritable = false) {
return this.addAttribute(LABEL, name, value, isInheritable);
}
/**
* Adds a new relation to this note. The relation attribute is saved and
* returned.
*
* @param {string} name - name of the relation, not including the leading ~
* @param {string} targetNoteId
* @param {boolean} [isInheritable=false]
* @returns {BAttribute}
*/
addRelation(name, targetNoteId, isInheritable = false) {
return this.addAttribute(RELATION, name, targetNoteId, isInheritable);
}
/**
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* Based on enabled, the attribute is either set or removed.
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*
* @param {string} type - attribute type ('relation', 'label' etc.)
* @param {boolean} enabled - toggle On or Off
* @param {string} name - attribute name
* @param {string} [value] - attribute value (optional)
*/
toggleAttribute(type, enabled, name, value) {
if (enabled) {
this.setAttribute(type, name, value);
}
else {
this.removeAttribute(type, name, value);
}
}
/**
* Based on enabled, label is either set or removed.
*
* @param {boolean} enabled - toggle On or Off
* @param {string} name - label name
* @param {string} [value] - label value (optional)
*/
toggleLabel(enabled, name, value) { return this.toggleAttribute(LABEL, enabled, name, value); }
/**
* Based on enabled, relation is either set or removed.
*
* @param {boolean} enabled - toggle On or Off
* @param {string} name - relation name
* @param {string} [value] - relation value (noteId)
*/
toggleRelation(enabled, name, value) { return this.toggleAttribute(RELATION, enabled, name, value); }
/**
* Update's given label's value or creates it if it doesn't exist
*
* @param {string} name - label name
* @param {string} [value] - label value
*/
setLabel(name, value) { return this.setAttribute(LABEL, name, value); }
/**
* Update's given relation's value or creates it if it doesn't exist
*
* @param {string} name - relation name
* @param {string} value - relation value (noteId)
*/
setRelation(name, value) { return this.setAttribute(RELATION, name, value); }
/**
* Remove label name-value pair, if it exists.
*
* @param {string} name - label name
* @param {string} [value] - label value
*/
removeLabel(name, value) { return this.removeAttribute(LABEL, name, value); }
/**
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* Remove the relation name-value pair, if it exists.
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*
* @param {string} name - relation name
* @param {string} [value] - relation value (noteId)
*/
removeRelation(name, value) { return this.removeAttribute(RELATION, name, value); }
searchNotesInSubtree(searchString) {
const searchService = require("../../services/search/services/search");
return searchService.searchNotes(searchString);
}
searchNoteInSubtree(searchString) {
return this.searchNotesInSubtree(searchString)[0];
}
/**
* @param parentNoteId
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* @returns {{success: boolean, message: string, branchId: string, notePath: string}}
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*/
cloneTo(parentNoteId) {
const cloningService = require("../../services/cloning");
const branch = this.becca.getNote(parentNoteId).getParentBranches()[0];
return cloningService.cloneNoteToBranch(this.noteId, branch.branchId);
}
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isEligibleForConversionToAttachment(opts = {autoConversion: false}) {
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if (this.type !== 'image' || !this.isContentAvailable() || this.hasChildren() || this.getParentBranches().length !== 1) {
return false;
}
const targetRelations = this.getTargetRelations().filter(relation => relation.name === 'imageLink');
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if (opts.autoConversion & & targetRelations.length === 0) {
return false;
} else if (targetRelations.length > 1) {
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return false;
}
const parentNote = this.getParentNotes()[0]; // at this point note can have only one parent
const referencingNote = targetRelations[0]?.getNote();
if (referencingNote & & parentNote !== referencingNote) {
return false;
} else if (parentNote.type !== 'text' || !parentNote.isContentAvailable()) {
return false;
}
return true;
}
/**
* Some notes are eligible for conversion into an attachment of its parent, note must have these properties:
* - it has exactly one target relation
* - it has a relation from its parent note
* - it has no children
* - it has no clones
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* - the parent is of type text
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* - both notes are either unprotected or user is in protected session
*
* Currently, works only for image notes.
*
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* In the future, this functionality might get more generic and some of the requirements relaxed.
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*
* @params {Object} [opts]
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* @params {bolean} [opts.autoConversion=false} if true, the action is not triggered by user, but e.g. by migration,
* and only perfect candidates will be migrated
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*
* @returns {BAttachment|null} - null if note is not eligible for conversion
*/
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convertToParentAttachment(opts = {autoConversion: false}) {
if (!this.isEligibleForConversionToAttachment(opts)) {
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return null;
}
const content = this.getContent();
const parentNote = this.getParentNotes()[0];
const attachment = parentNote.saveAttachment({
role: 'image',
mime: this.mime,
title: this.title,
content: content
});
let parentContent = parentNote.getContent();
const oldNoteUrl = `api/images/${this.noteId}/`;
const newAttachmentUrl = `api/attachments/${attachment.attachmentId}/image/`;
const fixedContent = utils.replaceAll(parentContent, oldNoteUrl, newAttachmentUrl);
parentNote.setContent(fixedContent);
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const noteService = require("../../services/notes");
noteService.asyncPostProcessContent(parentNote, fixedContent); // to mark an unused attachment for deletion
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this.deleteNote();
return attachment;
}
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/**
* (Soft) delete a note and all its descendants.
*
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* @param {string} [deleteId=null] - optional delete identified
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* @param {TaskContext} [taskContext]
*/
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deleteNote(deleteId = null, taskContext = null) {
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if (this.isDeleted) {
return;
}
if (!deleteId) {
deleteId = utils.randomString(10);
}
if (!taskContext) {
taskContext = new TaskContext('no-progress-reporting');
}
// needs to be run before branches and attributes are deleted and thus attached relations disappear
const handlers = require("../../services/handlers");
handlers.runAttachedRelations(this, 'runOnNoteDeletion', this);
taskContext.noteDeletionHandlerTriggered = true;
for (const branch of this.getParentBranches()) {
branch.deleteBranch(deleteId, taskContext);
}
}
decrypt() {
if (this.isProtected & & !this.isDecrypted & & protectedSessionService.isProtectedSessionAvailable()) {
try {
this.title = protectedSessionService.decryptString(this.title);
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this.__flatTextCache = null;
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this.isDecrypted = true;
}
catch (e) {
log.error(`Could not decrypt note ${this.noteId}: ${e.message} ${e.stack}`);
}
}
}
isLaunchBarConfig() {
return this.type === 'launcher' || ['_lbRoot', '_lbAvailableLaunchers', '_lbVisibleLaunchers'].includes(this.noteId);
}
isOptions() {
return this.noteId.startsWith("_options");
}
get isDeleted() {
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// isBeingDeleted is relevant only in the transition period when the deletion process has begun, but not yet
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// finished (note is still in becca)
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return !(this.noteId in this.becca.notes) || this.isBeingDeleted;
}
/**
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* @returns {BRevision|null}
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*/
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saveRevision() {
return sql.transactional(() => {
let noteContent = this.getContent();
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const revision = new BRevision({
noteId: this.noteId,
// title and text should be decrypted now
title: this.title,
type: this.type,
mime: this.mime,
isProtected: this.isProtected,
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utcDateLastEdited: this.utcDateModified,
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utcDateCreated: dateUtils.utcNowDateTime(),
utcDateModified: dateUtils.utcNowDateTime(),
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dateLastEdited: this.dateModified,
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dateCreated: dateUtils.localNowDateTime()
}, true);
revision.save(); // to generate revisionId, which is then used to save attachments
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for (const noteAttachment of this.getAttachments()) {
const revisionAttachment = noteAttachment.copy();
revisionAttachment.ownerId = revision.revisionId;
revisionAttachment.setContent(noteAttachment.getContent(), {forceSave: true});
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if (this.type === 'text') {
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// content is rewritten to point to the revision attachments
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noteContent = noteContent.replaceAll(`attachments/${noteAttachment.attachmentId}`,
`attachments/${revisionAttachment.attachmentId}`);
noteContent = noteContent.replaceAll(new RegExp(`href="[^"]*attachmentId=${noteAttachment.attachmentId}[^"]*"`, 'gi'),
`href="api/attachments/${revisionAttachment.attachmentId}/download"`);
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}
}
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revision.setContent(noteContent);
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return revision;
});
}
/**
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* @param {string} matchBy - choose by which property we detect if to update an existing attachment.
* Supported values are either 'attachmentId' (default) or 'title'
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* @returns {BAttachment}
*/
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saveAttachment({attachmentId, role, mime, title, content, position}, matchBy = 'attachmentId') {
if (!['attachmentId', 'title'].includes(matchBy)) {
throw new Error(`Unsupported value '${matchBy}' for matchBy param, has to be either 'attachmentId' or 'title'.`);
}
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let attachment;
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if (matchBy === 'title') {
attachment = this.getAttachmentByTitle(title);
} else if (matchBy === 'attachmentId' & & attachmentId) {
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attachment = this.becca.getAttachmentOrThrow(attachmentId);
}
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attachment = attachment || new BAttachment({
ownerId: this.noteId,
title,
role,
mime,
isProtected: this.isProtected,
position
});
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content = content || "";
attachment.setContent(content, {forceSave: true});
return attachment;
}
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getFileName() {
return utils.formatDownloadTitle(this.title, this.type, this.mime);
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}
beforeSaving() {
super.beforeSaving();
this.becca.addNote(this.noteId, this);
this.dateModified = dateUtils.localNowDateTime();
this.utcDateModified = dateUtils.utcNowDateTime();
}
getPojo() {
return {
noteId: this.noteId,
title: this.title,
isProtected: this.isProtected,
type: this.type,
mime: this.mime,
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blobId: this.blobId,
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isDeleted: false,
dateCreated: this.dateCreated,
dateModified: this.dateModified,
utcDateCreated: this.utcDateCreated,
utcDateModified: this.utcDateModified
};
}
getPojoToSave() {
const pojo = this.getPojo();
if (pojo.isProtected) {
if (this.isDecrypted) {
pojo.title = protectedSessionService.encrypt(pojo.title);
}
else {
// updating protected note outside of protected session means we will keep original ciphertexts
delete pojo.title;
}
}
return pojo;
}
}
module.exports = BNote;
< / code > < / pre >
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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 = "AbstractBeccaEntity.html" > AbstractBeccaEntity< / a > < / li > < li > < a href = "BAttachment.html" > BAttachment< / a > < / li > < li > < a href = "BAttribute.html" > BAttribute< / a > < / li > < li > < a href = "BBranch.html" > BBranch< / a > < / li > < li > < a href = "BEtapiToken.html" > BEtapiToken< / a > < / li > < li > < a href = "BNote.html" > BNote< / a > < / li > < li > < a href = "BOption.html" > BOption< / a > < / li > < li > < a href = "BRecentNote.html" > BRecentNote< / a > < / li > < li > < a href = "BRevision.html" > BRevision< / a > < / li > < li > < a href = "BackendScriptApi.html" > BackendScriptApi< / a > < / li > < / ul > < h3 > Global< / h3 > < ul > < li > < a href = "global.html#api" > api< / a > < / li > < / ul >
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