respective.py 文件源码

def field_to_id(m_field, g_field):
    """ We need this because if we want to do a query using the id, we will pass a string to args with the id of the 
    document that we want, but graphene needs a ID field, instead of Field. This function convert to right thing."""

    if isinstance(m_field, ReferenceField):
        return graphene.ID()
    elif (isinstance(m_field, ListField) or isinstance(m_field, SortedListField)) and \
            isinstance(m_field.field, ReferenceField):
        """ Pass here if it is a ListField or SortedListField of ReferenceField """
        return graphene.List(graphene.ID)
    else:
        return g_field