orderBy method
Creates and returns a new Query that's additionally sorted by the specified field, optionally in descending order instead of ascending.
This function returns a new (immutable) instance of the Query (rather than modify the existing instance) to impose the field mask.
fieldPath
: The field to sort by.descending
(false by default) Whether to obtain documents in descending order.
final query = firestore.collection('col').where('foo', WhereFilter.equal, 42);
query.orderBy('foo', 'desc').get().then((querySnapshot) {
querySnapshot.forEach((documentSnapshot) {
print('Found document at ${documentSnapshot.ref.path}');
});
});
Implementation
Query<T> orderBy(
Object path, {
bool descending = false,
}) {
return orderByFieldPath(
FieldPath.from(path),
descending: descending,
);
}