implemented changelog

src/models/note.ts

@@ -1,4 +1,5 @@
 import mongoose from 'mongoose';
+import db from '../db';
 
 const NoteSchema = new mongoose.Schema({
   comment: String,
@@ -9,4 +10,10 @@ const NoteSchema = new mongoose.Schema({
   custom_fields: mongoose.Schema.Types.Mixed
 });
 
-export default mongoose.model('note', NoteSchema);
+// changelog query helper
+NoteSchema.query.log = function <Q extends mongoose.DocumentQuery<any, any>> (req) {
+  db.log(req, this);
+  return this;
+}
+
+export default mongoose.model<any, mongoose.Model<any, any>>('note', NoteSchema);