serializers.py 文件源码

def get_pronouns_by_filters(filters):
    """
    Given a dictionary of pronoun filters, return the Pronouns object
    that corresponds to those pronouns pronoun. Some examples:

    {"subject": "he"}
    {"subject": "they", "reflexive": "themself"}
    {"subject": "they", "reflexive": "themselves"}
    {"possessive": "hers"}

    If no Pronouns object is found that matches these filters, or
    there are multiple Pronouns objects that match, a ValidationError is raised.
    """
    try:
        return Pronouns.query.filter_by(**filters).one()
    except NoResultFound:
        raise ValidationError(
            "No set of pronouns found for filters."
        )
    except MultipleResultsFound:
        raise ValidationError(
            "Multiple sets of pronouns found. Use more specific filters."
        )