convert mongoose schema to django model - django

Question

I have below javascript schema
const mongoose = require('mongoose');
const pointSchema = new mongoose.Schema({
timestamp: Number,
coords: {
latitude: Number,
longitude: Number,
altitude: Number,
accuracy: Number,
heading: Number,
speed: Number
}
});
const trackSchema = new mongoose.Schema({
userId: {
type: mongoose.Schema.Types.ObjectId,
ref: 'User'
},
name: {
type: String,
default: ''
},
locations: [pointSchema]
});
mongoose.model('Track', trackSchema);
I'm trying to convert above file to Django models. wondering how to write that locations: [pointSchema] and const pointSchema in my models.py.
Is it possible to convert that ?
this is how express server saves the data. I want to achieve same
router.post('/tracks', async (req, res) => {
const { name, locations } = req.body;
if (!name || !locations) {
return res
.status(422)
.send({ error: 'You must provide a name and locations' });
}
try {
const track = new Track({ name, locations, userId: req.user._id });
await track.save();
res.send(track);
} catch (err) {
res.status(422).send({ error: err.message });
}
});

Answer 1

You will be using a Many-to-one relationship depicted as a ForeignKey for the first part. Taking the docs as a basis here, it would look like this:
from django.db import models
class Coords(models.Model):
latitude = models.FloatField(...)
longitude = models.FloatField(...)
...
class PointSchema(models.Model):
timestamp = models.DateTimeField(...)
coords = models.ForeignKey(Coords, on_delete=models.CASCADE)
And for trackSchema, we use a ManyToManyField. Short excerpt:
class TrackSchema(models.Model):
...
locations = models.ManyToManyField(PointSchema)
...