added #titleTemplate, closes #2852

src/public/app/services/entrypoints.js

@@ -66,7 +66,6 @@ export default class Entrypoints extends Component {
         const inboxNote = await dateNoteService.getInboxNote();
 
         const {note} = await server.post(`notes/${inboxNote.noteId}/children?target=into`, {
-            title: 'new note',
             content: '',
             type: 'text',
             isProtected: inboxNote.isProtected && protectedSessionHolder.isProtectedSessionAvailable()

src/public/app/services/note_create.js

@@ -28,8 +28,6 @@ async function createNote(parentNotePath, options = {}) {
         [options.title, options.content] = parseSelectedHtml(window.cutToNote.getSelectedHtml());
     }
 
-    const newNoteName = options.title || "new note";
-
     const parentNoteId = treeService.getNoteIdFromNotePath(parentNotePath);
 
     if (options.type === 'mermaid' && !options.content) {
@@ -41,7 +39,7 @@ async function createNote(parentNotePath, options = {}) {
     }
 
     const {note, branch} = await server.post(`notes/${parentNoteId}/children?target=${options.target}&targetBranchId=${options.targetBranchId || ""}`, {
-        title: newNoteName,
+        title: options.title,
         content: options.content || "",
         isProtected: options.isProtected,
         type: options.type,

src/public/app/widgets/attribute_widgets/attribute_detail.js

@@ -219,6 +219,15 @@ const ATTR_HELP = {
         "shareDisallowRobotIndexing": `will forbid robot indexing of this note via <code>X-Robots-Tag: noindex</code> header`,
         "displayRelations": "comma delimited names of relations which should be displayed. All other ones will be hidden.",
         "hideRelations": "comma delimited names of relations which should be hidden. All other ones will be displayed.",
+        "titleTemplate": `default title of notes created as children of this note. The value is evaluated as JavaScript string 
+                        and thus can be enriched with dynamic content via the injected <code>now</code> and <code>parentNote</code> variables. Examples:
+                        
+                        <ul>
+                            <li><code>\${parentNote.getLabelValue('authorName')}'s literary works</code></li>
+                            <li><code>Log for \${now.format('YYYY-MM-DD HH:mm:ss')}</code></li>
+                        </ul>
+                        
+                        See <a href="https://github.com/zadam/trilium/wiki/Default-note-title">wiki with details</a>, API docs for <a href="https://zadam.github.io/trilium/backend_api/Note.html">parentNote</a> and <a href="https://day.js.org/docs/en/display/format">now</a> for details.`
     },
     "relation": {
         "runOnNoteCreation": "executes when note is created on backend",

src/services/builtin_attributes.js

@@ -50,6 +50,7 @@ module.exports = [
     { type: 'label', name: 'shareDisallowRobotIndexing' },
     { type: 'label', name: 'displayRelations' },
     { type: 'label', name: 'hideRelations' },
+    { type: 'label', name: 'titleTemplate' },
 
     // relation names
     { type: 'relation', name: 'internalLink' },

src/services/notes.js

@@ -17,7 +17,7 @@ const becca = require('../becca/becca');
 const Branch = require('../becca/entities/branch');
 const Note = require('../becca/entities/note');
 const Attribute = require('../becca/entities/attribute');
-const TaskContext = require("./task_context.js");
+const dayjs = require("dayjs");
 
 function getNewNotePosition(parentNoteId) {
     const note = becca.notes[parentNoteId];
@@ -79,6 +79,28 @@ function copyChildAttributes(parentNote, childNote) {
     }
 }
 
+function getNewNoteTitle(parentNote) {
+    let title = "new note";
+
+    const titleTemplate = parentNote.getLabelValue('titleTemplate');
+
+    if (titleTemplate !== null) {
+        try {
+            const now = dayjs(cls.getLocalNowDateTime() || new Date());
+
+            // "officially" injected values:
+            // - now
+            // - parentNote
+
+            title = eval('`' + titleTemplate + '`');
+        } catch (e) {
+            log.error(`Title template of note '${parentNote.noteId}' failed with: ${e.message}`);
+        }
+    }
+
+    return title;
+}
+
 /**
  * Following object properties are mandatory:
  * - {string} parentNoteId
@@ -104,8 +126,7 @@ function createNewNote(params) {
     }
 
     if (params.title === null || params.title === undefined) {
-        // empty title is allowed since it's possible to create such in the UI
-        throw new Error(`Note title must be set`);
+        params.title = getNewNoteTitle(parentNote);
     }
 
     if (params.content === null || params.content === undefined) {