graphql-python/graphene-sqlalchemy

Can a registered converter be shadowed to use a type other than a `graphene` type?

this-vidor opened this issue · 2 comments

this-vidor commented

For example, suppose a developer did not want sqlalchemy.dialects.postgres.HSTORE to be converted to graphene.types.json.JSONString. Is there a correct way to accomplish that?

erikwrede commented

The solution is to override the default type converter:

@convert_sqlalchemy_type.register(postgresql.HSTORE)
def convert_json_to_string(type, column, registry=None):
    return your_graphene_scalar

This needs to be called before your SQLAlchemyObjectTypes are initialized.

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