model field choices are not enforced

[stiffupperlip]

In Django 1.8.8 when I create a model class like below, choices are not enforced when creating an instance of the model class:

class HTTPMethod(models.Model):
    HTTP_METHODS = [(_, _) for _ in ['get', 'post', 'put', 'patch', 'delete', 'head', 'options', 'trace', 'connect']]

    id = models.AutoField(primary_key=True)
    name = models.CharField(choices=HTTP_METHODS, unique=True, max_length=255)


h = HTTPMethod(name='something invalid')
h.save()

No errors are raised and invalid data is stored in the model.

Python 2.7.6 on Ubuntu 14.04

[Tim Graham]

As described in the ​validation documentation,

Note that full_clean() will not be called automatically when you call your model’s save() method. You’ll need to call it manually when you want to run one-step model validation for your own manually created models.