How can I get other fields from relation model? - reactjs

Question

I'm use flask-marshmallow.
In response I get next simillary json:
data = {
'id': '1.0.1',
'name': 'test',
'applicaion_id': 'google',
}
How can I get application.name from Application?
react
class VersionDetail extends Component {
state = {
app: {
id: '',
name: '',
application_id: '',
}
}
componentDidMount() {
axios.get('/apps/'+this.props.match.params.id)
.then(response => this.setState({ app: response.data }))
.catch(function (error) {
})
}
render() {
return ()
}
}
routes
class ApplicationDetailSchema(ma.ModelSchema):
class Meta:
model = Application
fields = ('id', 'name', 'versions')
class VersionDetailSchema(ma.ModelSchema):
class Meta:
model = Version
fields = ('id', 'file', 'application_id')
version_schema = VersionDetailSchema()
#app.route("/<application_id>/<version_id>")
def version_detail(id):
application = Application.get(application_id)
version = Version.get(version_id)
return version_schema.dump(version)
models
class Application(db.Model):
__tablename__ = 'applications'
id = db.Column(db.String(), primary_key=True)
name = db.Column(db.String())
versions = db.relationship('Version', backref='application', lazy=True)
def __repr__(self):
return '<application {}>'.format(self.name)
class Version(db.Model):
__tablename__ = 'versions'
id = db.Column(db.String(), primary_key=True)
file = db.Column(db.String(80), nullable=True)
application_id = db.Column(db.Integer, db.ForeignKey('applications.id'))
def __repr__(self):
return '<version {}>'.format(self.id)

Answer 1

I think you'll need to add a ma.Nested schema into your VersionDetailSchema, as outlined in this answer - something like;
class VersionDetailSchema(ma.ModelSchema):
application = ma.Nested(ApplicationDetailsSchema, only=['name'])
class Meta:
model = Version
fields = ('id', 'file', 'application_id', 'application')
I'm only guessing at the only=['name'] based off the marshmallow docs
There is unfortunately not much in the way of documentation on this for flask-marshmallow - I personally find the benefit of using that add on is actually less than the more well documented marshmallow by itself - the setup is hardly very difficult.