Django负荷

Question

我在app目录中创建了一个“fixtures”文件夹，并将data1.json放在其中。

这是文件中的内容：

[{"firm_url": "http://www.graychase.com/kadam", "firm_name": "Gray & Chase", "first": " Karin ", "last": "Adam", "school": "Ernst Moritz Arndt University Greifswald",  "year_graduated": " 2004"} ]

在命令行I cd到app目录和

django-admin.py loaddata data1.json

但我知道这个错误

Installing json fixture 'data1' from
'C:\Users\A\Documents\Projects\Django\sw2\wkw2\fixtures'.
Problem installing fixture
'C:\Users\A\Documents\Projects\Django\sw2\wkw2\fixtures\data1.json': Traceback (most recent call last):
File "C:\Python26\Lib\site-packages\django\core\management\commands\loaddata.py", line 150, in handle for obj in objects:
File "C:\Python26\lib\site-packages\django\core\serializers\json.py", line 41, in Deserializer for obj in PythonDeserializer(simplejson.load(stream)):
File "C:\Python26\lib\site-packages\django\core\serializers\python.py", line 76, in Deserializer
Model = _get_model(d["model"])
KeyError: 'model'

我做错什么了？

编辑：

我修复了json格式：

[
    {
        "pk": 1, 
        "model": "wkw2.Lawyer", 
        "fields": {
            "school": "The George Washington University Law School", 
            "last": "Babas", 
            "firm_url": "http://www.graychase.com/babbas", 
            "year_graduated": "2005", 
            "firm_name": "Gray & Chase", 
            "first": "Amr A"
        }
    }
]

但现在我得到ValidationError：这个值必须是整数。有没有办法从行号中找出导致错误的原因？只有“pk”是整数。

Problem installing fixture 'C:\~\sw2\wkw2\fixtures\csvtest1.csv.json': Traceback (most recent call last):
File "C:\Python26\Lib\site-packages\django\core\management\commands\loaddata.py", line 150, in handle for obj in objects:
File "C:\Python26\lib\site-packages\django\core\serializers\json.py", line 41, in  Deserializer for obj in PythonDeserializer(simplejson.load(stream)):
File "C:\Python26\lib\site-packages\django\core\serializers\python.py", line 95, in Deserializer data[field.attname] =  field.rel.to._meta.get_field(field.rel.field_name).to_python(field_value)
File "C:\Python26\lib\site-packages\django\db\models\fields\__init__.py", line 356, in to_python_("This value must be an integer."))

ValidationError: This value must be an integer.

Answer 1

看起来您没有正确定义设备。看看Django Documentation。您需要定义正在加载的模型，然后定义如下字段

 [
  {
    "model": "myapp.person",
    "pk": 1,
    "fields": {
      "first_name": "John",
      "last_name": "Lennon"
    }
  },
  {
    "model": "myapp.person",
    "pk": 2,
    "fields": {
      "first_name": "Paul",
      "last_name": "McCartney"
    }
  }
]

Answer 2

看起来问题出在您创建的fixture中。以下情况可能会导致问题：

• 创建fixture后更改数据库模式，然后将fixture加载到新模式中
• 手工摆弄夹具的内容。

您是否使用manage.py dumpdata创建了fixture？