在使用Django模型之前,如何初始化它?

:

• Python 2.6.2版
• Django(使用PostgreSQL)

问题

class OperationType(models.Model):
    eid            = models.IntegerField()
    name           = models.TextField(blank=True)
    description    = models.TextField(blank=True)

    def __unicode__(self):
        tpl = 'eid="', str(self.eid), '" name="', self.name, '"'
        return ''.join(tpl)

现在我需要初始化它,例如使用以下数据:

0, "None"
1, "Add"
2, "Edit"
3, "Delete"

文件 initial_data.json

[
  {
    "model": "OperationType",
    "pk": 1,
    "fields": {
      "eid": 0,
      "name": "None",
      "description": "Do nothing"
    }
  },
  {
    "model": "OperationType",
    "pk": 2,
    "fields": {
      "eid": 1,
      "name": "Add",
      "description": "Adding transaction"
    }
  }
]