Validation Error in get request fastAPI sqlalchemy - mysql

Question

I have this route, that with the actual data in the DB table is supposed to answer with a 9 and 4 if i enter a 2 as parameter, but i get the error.
#userRoutes.get(
"/users/userMatch/{idusuariobuscar}",
response_model=list[PartidosUser],
tags=["users"],
)
def get_user_matches(idusuariobuscar: str):
return conn.execute(
partidosusuarios.select(partidosusuarios.c.idpartido).where(
partidosusuarios.c.idusuario == idusuariobuscar
)
).fetchall()
that queries this table
This is the schema
class PartidosUser(BaseModel):
id: Optional[str]
idUsuario: str
idPartido: str
class Config:
orm_mode = True
And this the model of the table
partidosusuarios = Table(
"partidosusuarios",
meta,
Column("idrelacion", Integer, primary_key=True),
Column("idpartido", Integer),
Column(
"idusuario",
Integer,
),
)
And the error
raise ValidationError(errors, field.type_)
pydantic.error_wrappers.ValidationError: 4 validation errors for PartidosUser
response -> 0 -> idUsuario
field required (type=value_error.missing)
response -> 0 -> idPartido
field required (type=value_error.missing)
response -> 1 -> idUsuario
field required (type=value_error.missing)
response -> 1 -> idPartido
field required (type=value_error.missing)

Answer 1

You are only fetching the idpartido column from the database, hence the other fields don't exist. Changing your query from
partidosusuarios.select(partidosusuarios.c.idpartido).where(
partidosusuarios.c.idusuario == idusuariobuscar
)
to
partidosusuarios.select().where(
partidosusuarios.c.idusuario == idusuariobuscar
)
should solve your problem.
Also, be aware that since your Pydantic model contains an id field but your database model doesn't, this field will always be None. Also, your database field idrelacion is not included in the response. These might be intentional choices, or a naming error.