configurable keyboard shortcuts WIP

docs/backend_api/entities_note.js.html

@@ -49,6 +49,7 @@ const RELATION_DEFINITION = 'relation-definition';
  * @property {string} type - one of "text", "code", "file" or "render"
  * @property {string} mime - MIME type, e.g. "text/html"
  * @property {string} title - note title
+ * @property {int} contentLength - length of content
  * @property {boolean} isProtected - true if note is protected
  * @property {boolean} isDeleted - true if note is deleted
  * @property {boolean} isErased - true if note's content is erased after it has been deleted
@@ -141,8 +142,13 @@ class Note extends Entity {
 
     /** @returns {Promise} */
     async setContent(content) {
+        if (content === null || content === undefined) {
+            throw new Error(`Cannot set null content to note ${this.noteId}`);
+        }
+
         // force updating note itself so that dateModified is represented correctly even for the content
         this.forcedChange = true;
+        this.contentLength = content.length;
         await this.save();
 
         this.content = content;
@@ -498,6 +504,32 @@ class Note extends Entity {
         }
     }
 
+    /**
+     * @return {Promise<Attribute>}
+     */
+    async addAttribute(type, name, value = "") {
+        const attr = new Attribute({
+            noteId: this.noteId,
+            type: type,
+            name: name,
+            value: value
+        });
+
+        await attr.save();
+
+        this.invalidateAttributeCache();
+
+        return attr;
+    }
+
+    async addLabel(name, value = "") {
+        return await this.addAttribute(LABEL, name, value);
+    }
+
+    async addRelation(name, targetNoteId) {
+        return await this.addAttribute(RELATION, name, targetNoteId);
+    }
+
     /**
      * @param {string} name - label name
      * @returns {Promise<boolean>} true if label exists (including inherited)
@@ -767,6 +799,10 @@ class Note extends Entity {
             this.utcDateCreated = dateUtils.utcNowDateTime();
         }
 
+        if (this.contentLength === undefined) {
+            this.contentLength = -1;
+        }
+
         super.beforeSaving();
 
         if (this.isChanged) {