当我试图保存一个Django用户模型实例时，我得到了TransactionManagementError，在它的post_save信号中，我保存了一些有用户作为外键的模型。
上下文和错误与这个问题非常相似 django使用信号时的TransactionManagementError
但是，在这种情况下，错误只在单元测试时发生。
它在手动测试中工作得很好，但单元测试失败。
我还遗漏了什么吗?
下面是代码片段:
views.py
@csrf_exempt
def mobileRegister(request):
if request.method == 'GET':
response = {"error": "GET request not accepted!!"}
return HttpResponse(json.dumps(response), content_type="application/json",status=500)
elif request.method == 'POST':
postdata = json.loads(request.body)
try:
# Get POST data which is to be used to save the user
username = postdata.get('phone')
password = postdata.get('password')
email = postdata.get('email',"")
first_name = postdata.get('first_name',"")
last_name = postdata.get('last_name',"")
user = User(username=username, email=email,
first_name=first_name, last_name=last_name)
user._company = postdata.get('company',None)
user._country_code = postdata.get('country_code',"+91")
user.is_verified=True
user._gcm_reg_id = postdata.get('reg_id',None)
user._gcm_device_id = postdata.get('device_id',None)
# Set Password for the user
user.set_password(password)
# Save the user
user.save()
signal.py
def create_user_profile(sender, instance, created, **kwargs):
if created:
company = None
companycontact = None
try: # Try to make userprofile with company and country code provided
user = User.objects.get(id=instance.id)
rand_pass = random.randint(1000, 9999)
company = Company.objects.get_or_create(name=instance._company,user=user)
companycontact = CompanyContact.objects.get_or_create(contact_type="Owner",company=company,contact_number=instance.username)
profile = UserProfile.objects.get_or_create(user=instance,phone=instance.username,verification_code=rand_pass,company=company,country_code=instance._country_code)
gcmDevice = GCMDevice.objects.create(registration_id=instance._gcm_reg_id,device_id=instance._gcm_reg_id,user=instance)
except Exception, e:
pass
tests.py
class AuthTestCase(TestCase):
fixtures = ['nextgencatalogs/fixtures.json']
def setUp(self):
self.user_data={
"phone":"0000000000",
"password":"123",
"first_name":"Gaurav",
"last_name":"Toshniwal"
}
def test_registration_api_get(self):
response = self.client.get("/mobileRegister/")
self.assertEqual(response.status_code,500)
def test_registration_api_post(self):
response = self.client.post(path="/mobileRegister/",
data=json.dumps(self.user_data),
content_type="application/json")
self.assertEqual(response.status_code,201)
self.user_data['username']=self.user_data['phone']
user = User.objects.get(username=self.user_data['username'])
# Check if the company was created
company = Company.objects.get(user__username=self.user_data['phone'])
self.assertIsInstance(company,Company)
# Check if the owner's contact is the same as the user's phone number
company_contact = CompanyContact.objects.get(company=company,contact_type="owner")
self.assertEqual(user.username,company_contact[0].contact_number)
回溯:
======================================================================
ERROR: test_registration_api_post (nextgencatalogs.apps.catalogsapp.tests.AuthTestCase)
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Traceback (most recent call last):
File "/Users/gauravtoshniwal1989/Developer/Web/Server/ngc/nextgencatalogs/apps/catalogsapp/tests.py", line 29, in test_registration_api_post
user = User.objects.get(username=self.user_data['username'])
File "/Users/gauravtoshniwal1989/Developer/Web/Server/ngc/ngcvenv/lib/python2.7/site-packages/django/db/models/manager.py", line 151, in get
return self.get_queryset().get(*args, **kwargs)
File "/Users/gauravtoshniwal1989/Developer/Web/Server/ngc/ngcvenv/lib/python2.7/site-packages/django/db/models/query.py", line 301, in get
num = len(clone)
File "/Users/gauravtoshniwal1989/Developer/Web/Server/ngc/ngcvenv/lib/python2.7/site-packages/django/db/models/query.py", line 77, in __len__
self._fetch_all()
File "/Users/gauravtoshniwal1989/Developer/Web/Server/ngc/ngcvenv/lib/python2.7/site-packages/django/db/models/query.py", line 854, in _fetch_all
self._result_cache = list(self.iterator())
File "/Users/gauravtoshniwal1989/Developer/Web/Server/ngc/ngcvenv/lib/python2.7/site-packages/django/db/models/query.py", line 220, in iterator
for row in compiler.results_iter():
File "/Users/gauravtoshniwal1989/Developer/Web/Server/ngc/ngcvenv/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 710, in results_iter
for rows in self.execute_sql(MULTI):
File "/Users/gauravtoshniwal1989/Developer/Web/Server/ngc/ngcvenv/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 781, in execute_sql
cursor.execute(sql, params)
File "/Users/gauravtoshniwal1989/Developer/Web/Server/ngc/ngcvenv/lib/python2.7/site-packages/django/db/backends/util.py", line 47, in execute
self.db.validate_no_broken_transaction()
File "/Users/gauravtoshniwal1989/Developer/Web/Server/ngc/ngcvenv/lib/python2.7/site-packages/django/db/backends/__init__.py", line 365, in validate_no_broken_transaction
"An error occurred in the current transaction. You can't "
TransactionManagementError: An error occurred in the current transaction. You can't execute queries until the end of the 'atomic' block.
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