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< h1 class = "page-title" > Source: entities/note_short.js< / h1 >
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< pre class = "prettyprint source linenums" > < code > import server from '../services/server.js';
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import Attribute from './attribute.js';
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import noteAttributeCache from "../services/note_attribute_cache.js";
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const LABEL = 'label';
const RELATION = 'relation';
/**
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* FIXME: since there's no "full note" anymore we can rename this to Note
*
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* This note's representation is used in note tree and is kept in TreeCache.
*/
class NoteShort {
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/**
* @param {TreeCache} treeCache
* @param {Object.< string, Object>} row
*/
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constructor(treeCache, row) {
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this.treeCache = treeCache;
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/** @type {string[]} */
this.attributes = [];
/** @type {string[]} */
this.targetRelations = [];
/** @type {string[]} */
this.parents = [];
/** @type {string[]} */
this.children = [];
/** @type {Object.< string, string>} */
this.parentToBranch = {};
/** @type {Object.< string, string>} */
this.childToBranch = {};
this.update(row);
}
update(row) {
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/** @param {string} */
this.noteId = row.noteId;
/** @param {string} */
this.title = row.title;
/** @param {boolean} */
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this.isProtected = !!row.isProtected;
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/** @param {string} one of 'text', 'code', 'file' or 'render' */
this.type = row.type;
/** @param {string} content-type, e.g. "application/json" */
this.mime = row.mime;
/** @param {boolean} */
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this.isDeleted = row.isDeleted;
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}
addParent(parentNoteId, branchId) {
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if (parentNoteId === 'none') {
return;
}
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if (!this.parents.includes(parentNoteId)) {
this.parents.push(parentNoteId);
}
this.parentToBranch[parentNoteId] = branchId;
}
addChild(childNoteId, branchId) {
if (!this.children.includes(childNoteId)) {
this.children.push(childNoteId);
}
this.childToBranch[childNoteId] = branchId;
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this.sortChildren();
}
sortChildren() {
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const branchIdPos = {};
for (const branchId of Object.values(this.childToBranch)) {
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branchIdPos[branchId] = this.treeCache.getBranch(branchId).notePosition;
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}
this.children.sort((a, b) => branchIdPos[this.childToBranch[a]] < branchIdPos[this.childToBranch[b]] ? -1 : 1);
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}
/** @returns {boolean} */
isJson() {
return this.mime === "application/json";
}
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async getContent() {
// we're not caching content since these objects are in treeCache and as such pretty long lived
const note = await server.get("notes/" + this.noteId);
return note.content;
}
async getJsonContent() {
const content = await this.getContent();
try {
return JSON.parse(content);
}
catch (e) {
console.log(`Cannot parse content of note ${this.noteId}: `, e.message);
return null;
}
}
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/** @returns {string[]} */
getBranchIds() {
return Object.values(this.parentToBranch);
}
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/** @returns {Branch[]} */
getBranches() {
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const branchIds = Object.values(this.parentToBranch);
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return this.treeCache.getBranches(branchIds);
}
/** @returns {boolean} */
hasChildren() {
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return this.children.length > 0;
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}
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/** @returns {Branch[]} */
getChildBranches() {
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// don't use Object.values() to guarantee order
const branchIds = this.children.map(childNoteId => this.childToBranch[childNoteId]);
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return this.treeCache.getBranches(branchIds);
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}
/** @returns {string[]} */
getParentNoteIds() {
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return this.parents;
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}
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/** @returns {NoteShort[]} */
getParentNotes() {
return this.treeCache.getNotesFromCache(this.parents);
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}
/** @returns {string[]} */
getChildNoteIds() {
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return this.children;
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}
/** @returns {Promise< NoteShort[]>} */
async getChildNotes() {
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return await this.treeCache.getNotes(this.children);
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}
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/**
* @param {string} [type] - (optional) attribute type to filter
* @param {string} [name] - (optional) attribute name to filter
* @returns {Attribute[]} all note's attributes, including inherited ones
*/
getOwnedAttributes(type, name) {
const attrs = this.attributes
.map(attributeId => this.treeCache.attributes[attributeId])
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.filter(Boolean); // filter out nulls;
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return this.__filterAttrs(attrs, type, name);
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}
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/**
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* @param {string} [type] - (optional) attribute type to filter
* @param {string} [name] - (optional) attribute name to filter
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* @returns {Attribute[]} all note's attributes, including inherited ones
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*/
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getAttributes(type, name) {
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return this.__filterAttrs(this.__getCachedAttributes([]), type, name);
}
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__getCachedAttributes(path) {
// notes/clones cannot form tree cycles, it is possible to create attribute inheritance cycle via templates
// when template instance is a parent of template itself
if (path.includes(this.noteId)) {
return [];
}
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if (!(this.noteId in noteAttributeCache.attributes)) {
const newPath = [...path, this.noteId];
const attrArrs = [ this.getOwnedAttributes() ];
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if (this.noteId !== 'root') {
for (const parentNote of this.getParentNotes()) {
// these virtual parent-child relationships are also loaded into frontend tree cache
if (parentNote.type !== 'search') {
attrArrs.push(parentNote.__getInheritableAttributes(newPath));
}
}
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}
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for (const templateAttr of attrArrs.flat().filter(attr => attr.type === 'relation' & & attr.name === 'template')) {
const templateNote = this.treeCache.notes[templateAttr.value];
if (templateNote & & templateNote.noteId !== this.noteId) {
attrArrs.push(templateNote.__getCachedAttributes(newPath));
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}
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}
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noteAttributeCache.attributes[this.noteId] = [];
const addedAttributeIds = new Set();
for (const attr of attrArrs.flat()) {
if (!addedAttributeIds.has(attr.attributeId)) {
addedAttributeIds.add(attr.attributeId);
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noteAttributeCache.attributes[this.noteId].push(attr);
}
}
}
return noteAttributeCache.attributes[this.noteId];
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}
__filterAttrs(attributes, type, name) {
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if (!type & & !name) {
return attributes;
} else if (type & & name) {
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return attributes.filter(attr => attr.type === type & & attr.name === name);
} else if (type) {
return attributes.filter(attr => attr.type === type);
} else if (name) {
return attributes.filter(attr => attr.name === name);
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}
}
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__getInheritableAttributes(path) {
const attrs = this.__getCachedAttributes(path);
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return attrs.filter(attr => attr.isInheritable);
}
/**
* @param {string} [name] - label name to filter
* @returns {Attribute[]} all note's labels (attributes with type label), including inherited ones
*/
getOwnedLabels(name) {
return this.getOwnedAttributes(LABEL, name);
}
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/**
* @param {string} [name] - label name to filter
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* @returns {Attribute[]} all note's labels (attributes with type label), including inherited ones
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*/
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getLabels(name) {
return this.getAttributes(LABEL, name);
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}
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/**
* @param {string} [name] - relation name to filter
* @returns {Attribute[]} all note's relations (attributes with type relation), including inherited ones
*/
getOwnedRelations(name) {
return this.getOwnedAttributes(RELATION, name);
}
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/**
* @param {string} [name] - relation name to filter
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* @returns {Attribute[]} all note's relations (attributes with type relation), including inherited ones
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*/
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getRelations(name) {
return this.getAttributes(RELATION, name);
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}
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
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* @returns {boolean} true if note has an attribute with given type and name (including inherited)
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*/
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hasAttribute(type, name) {
return !!this.getAttribute(type, name);
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}
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/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @returns {boolean} true if note has an attribute with given type and name (including inherited)
*/
hasOwnedAttribute(type, name) {
return !!this.getOwnedAttribute(type, name);
}
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @returns {Attribute} attribute of given type and name. If there's more such attributes, first is returned. Returns null if there's no such attribute belonging to this note.
*/
getOwnedAttribute(type, name) {
const attributes = this.getOwnedAttributes(type, name);
return attributes.length > 0 ? attributes[0] : 0;
}
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/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
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* @returns {Attribute} attribute of given type and name. If there's more such attributes, first is returned. Returns null if there's no such attribute belonging to this note.
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*/
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getAttribute(type, name) {
const attributes = this.getAttributes(type, name);
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return attributes.length > 0 ? attributes[0] : 0;
}
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @returns {string} 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;
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}
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
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* @returns {string} attribute value of given type and name or null if no such attribute exists.
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*/
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getAttributeValue(type, name) {
const attr = this.getAttribute(type, name);
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return attr ? attr.value : null;
}
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/**
* @param {string} name - label name
* @returns {boolean} true if label exists (excluding inherited)
*/
hasOwnedLabel(name) { return this.hasOwnedAttribute(LABEL, name); }
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/**
* @param {string} name - label name
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* @returns {boolean} true if label exists (including inherited)
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*/
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hasLabel(name) { return this.hasAttribute(LABEL, name); }
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/**
* @param {string} name - relation name
* @returns {boolean} true if relation exists (excluding inherited)
*/
hasOwnedRelation(name) { return this.hasOwnedAttribute(RELATION, name); }
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/**
* @param {string} name - relation name
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* @returns {boolean} true if relation exists (including inherited)
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*/
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hasRelation(name) { return this.hasAttribute(RELATION, name); }
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/**
* @param {string} name - label name
* @returns {Attribute} label if it exists, null otherwise
*/
getOwnedLabel(name) { return this.getOwnedAttribute(LABEL, name); }
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/**
* @param {string} name - label name
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* @returns {Attribute} label if it exists, null otherwise
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*/
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getLabel(name) { return this.getAttribute(LABEL, name); }
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/**
* @param {string} name - relation name
* @returns {Attribute} relation if it exists, null otherwise
*/
getOwnedRelation(name) { return this.getOwnedAttribute(RELATION, name); }
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/**
* @param {string} name - relation name
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* @returns {Attribute} relation if it exists, null otherwise
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*/
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getRelation(name) { return this.getAttribute(RELATION, name); }
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/**
* @param {string} name - label name
* @returns {string} label value if label exists, null otherwise
*/
getOwnedLabelValue(name) { return this.getOwnedAttributeValue(LABEL, name); }
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/**
* @param {string} name - label name
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* @returns {string} label value if label exists, null otherwise
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*/
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getLabelValue(name) { return this.getAttributeValue(LABEL, name); }
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/**
* @param {string} name - relation name
* @returns {string} relation value if relation exists, null otherwise
*/
getOwnedRelationValue(name) { return this.getOwnedAttributeValue(RELATION, name); }
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/**
* @param {string} name - relation name
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* @returns {string} relation value if relation exists, null otherwise
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*/
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getRelationValue(name) { return this.getAttributeValue(RELATION, name); }
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/**
* @param {string} name
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* @returns {Promise< NoteShort>|null} target note of the relation or null (if target is empty or note was not found)
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*/
async getRelationTarget(name) {
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const targets = await this.getRelationTargets(name);
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return targets.length > 0 ? targets[0] : null;
}
/**
* @param {string} [name] - relation name to filter
* @returns {Promise< NoteShort[]>}
*/
async getRelationTargets(name) {
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const relations = this.getRelations(name);
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const targets = [];
for (const relation of relations) {
targets.push(await this.treeCache.getNote(relation.value));
}
return targets;
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}
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/**
* @returns {NoteShort[]}
*/
getTemplateNotes() {
const relations = this.getRelations('template');
return relations.map(rel => this.treeCache.notes[rel.value]);
}
hasAncestor(ancestorNote) {
if (this.noteId === ancestorNote.noteId) {
return true;
}
for (const templateNote of this.getTemplateNotes()) {
if (templateNote.hasAncestor(ancestorNote)) {
return true;
}
}
for (const parentNote of this.getParentNotes()) {
if (parentNote.hasAncestor(ancestorNote)) {
return true;
}
}
return false;
}
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/**
* Clear note's attributes cache to force fresh reload for next attribute request.
* Cache is note instance scoped.
*/
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invalidateAttributeCache() {
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this.__attributeCache = null;
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}
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/**
* Get relations which target this note
*
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* @returns {Attribute[]}
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*/
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getTargetRelations() {
return this.targetRelations
.map(attributeId => this.treeCache.attributes[attributeId]);
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}
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/**
* Get relations which target this note
*
* @returns {NoteShort[]}
*/
async getTargetRelationSourceNotes() {
const targetRelations = this.getTargetRelations();
return await this.treeCache.getNotes(targetRelations.map(tr => tr.noteId));
}
/**
* Return note complement which is most importantly note's content
*
* @return {Promise< NoteComplement>}
*/
async getNoteComplement() {
return await this.treeCache.getNoteComplement(this.noteId);
}
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get toString() {
return `Note(noteId=${this.noteId}, title=${this.title})`;
}
get dto() {
const dto = Object.assign({}, this);
delete dto.treeCache;
return dto;
}
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getCssClass() {
const labels = this.getLabels('cssClass');
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return labels.map(l => l.value).join(' ');
}
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}
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export default NoteShort;
< / code > < / pre >
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< nav >
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< h2 > < a href = "index.html" > Home< / a > < / h2 > < h3 > Classes< / h3 > < ul > < li > < a href = "Branch.html" > Branch< / a > < / li > < li > < a href = "FrontendScriptApi.html" > FrontendScriptApi< / a > < / li > < li > < a href = "NoteComplement.html" > NoteComplement< / a > < / li > < li > < a href = "NoteShort.html" > NoteShort< / a > < / li > < / ul > < h3 > Global< / h3 > < ul > < li > < a href = "global.html#decorateWidget" > decorateWidget< / a > < / li > < li > < a href = "global.html#doRenderBody" > doRenderBody< / a > < / li > < li > < a href = "global.html#widgetCollapsedStateChangedEvent" > widgetCollapsedStateChangedEvent< / a > < / li > < / ul >
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Documentation generated by < a href = "https://github.com/jsdoc/jsdoc" > JSDoc 3.6.6< / a >
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