Django:如何动态创建模型以进行测试

if 'test' in sys.argv:
    DATABASES['default'] = {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': ':memory:',
    }

from django.contrib.contenttypes.models import ContentType

# 创建一个新的模型
model = type('MyModel', (models.Model,), {
    '__module__': 'myapp.models',
    'name': models.CharField(max_length=100),
})

# 将新模型注册到 ContentTypes 框架中
content_type = ContentType.objects.create(
    app_label='myapp',
    model='mymodel',
    name='My Model',
)

from django.db.models.base import ModelBase
from django.db.models.manager import Manager
from django.db.models.loading import AppCache
from django.db.models.options import Options

# 创建一个新的模型
class MyModel(models.Model):
    name = models.CharField(max_length=100)

    class Meta:
        app_label = 'myapp'

# 将新模型注册到 ContentTypes 框架中
content_type = ContentType.objects.create(
    app_label='myapp',
    model='mymodel',
    name='My Model',
)

# 将新模型注册到 Django 的模型注册表中
app_cache = AppCache()
app_cache.register_model('myapp', 'MyModel', MyModel)

# 创建一个新的模型实例
my_model = MyModel(name='Test')
my_model.save()