Handlebars: Access has been denied to resolve the property "name" because it is not an "own property" of its parent - node.js

Question

I got the issue with handlebars 4.7.3. I already checked the solution from this ask,
Handlebars: Access has been denied to resolve the property "from" because it is not an "own property" of its parent
but it was no solution for my code so I hope someone can help me.
Controller.js
submitPosts: (req, res) => {
// Check the attributs from create.handlebars for success or error message
const newPost = new Post( {
surname: req.body.surname,
name: req.body.name,
biography: req.body.biography,
profilpicture: req.body.profilpicture,
paintings: req.body.paintings,
});
// Safe new posts
newPost.save().then(post => {
console.log(post);
flash('success-message', 'new post!')
res.redirect('/admin/posts');
});
},
postModel.js
const
mongoose = require('mongoose');
const Schema = mongoose.Schema; // get props
const PostSchema = new Schema({
// define props --> required for a post
surname: {
type: String,
default: ''
},
name: {
type: String,
default: ''
},
biography: {
type: String,
default: ''
},
profilpicture: {
type: Object,
},
paintings : {
type: Object,
}
});
module.exports = mongoose.model('post', PostSchema);
index.handlebars
{{#each post}}
<tr>
<td>{{ surname }}</td>
<td>{{ name }}</td>
<td><img style="width: 100px; height:100px;" src="{{ profilpicture }}"></td>
<td>{{ biography }}</td>
<td><img style="width: 100px; height:100px;" src="{{ paintings }}"></td>
</tr>
{{/each}}
Already tried every possibility from the other ask on stack overflow, other handlebars version, change router code, ... NOTHING WORKS :(

Answer 1

Just had the same issue that wrecked my nerves.
Tried additional packages etc but in the end a simple command solve this.
Its the Command ".lean()"
Found more here: link to mongoose docs for lean()
my code example:
// show message page Route
router.get("/", (req, res) => {
//read all Message entries from db
Message.find()
//sort them descending by date property
.sort({ date: "desc" })
.lean()
//take these and call the rendered page and pass them as object to the page
.then(messages => {
res.render("messages/show_messages", { messages: messages });
});
});