gistfile1.py

class Email(Document):
    created      = QuantumField(required=True, default=quantum.now)
    status       = StringField(required=True, choices=['pending', 'sending', 'paused', 'sent'], default='pending')
    progress     = IntField(default=0)
    processed    = QuantumField()
    template     = StringField()
    tplvars      = DictField()
    dispensation = ReferenceField('Dispensation')
    comment      = StringField()
    subject      = StringField(required=True)
    text_body    = StringField()
    html_body    = StringField()