ImportError: cannot import name 'djongo_access_url' from 'djongo'
Я получаю следующую ошибку при использовании Djongo с Mongodb на сервере django:
My users/views.py:
from django.shortcuts import render
from django.http import HttpResponse
from django.views.decorators.csrf import csrf_exempt
import json
from helpers.view_functions import parse_request_body
from .models import UserProfile
from djongo import transaction
@csrf_exempt
def get_user_profile(request, user_id):
# pass
if request.method == 'GET':
with transaction.atomic():
profile, created = UserProfile.objects.get_or_create(user_id=user_id)
if created:
profile.user_id = user_id
profile.searches = [
{'search_term': 'hd'},
{'search_term': 'wba'},
]
profile.display_settings = [
{'setting_name': 'showYieldChange', 'visible': True},
{'setting_name': 'showAllDividends', 'visible': True},
]
profile.save()
print("user saved in db")
user = UserProfile.objects.get(user_id=user_id)
data = {
'user_id': user.user_id,
'searches': user.searches,
'display_settings': user.display_settings
}
json_data = json.dumps(data)
return HttpResponse({json_data}, content_type='application/json')
if request.method == 'POST':
body = parse_request_body(request)
searches = body['searches']
searches_objects = [{'search_term': x} for x in searches]
print("New searches for user {user_id}".format(user_id=user_id))
print(searches_objects)
user = UserProfile.objects.get(user_id=user_id)
user.searches = searches_objects
user.display_settings = body['display_settings']
user.save()
return HttpResponse("it worked")
users/urls.py:
from django.urls import path
from . import views
app_name = 'dividends'
urlpatterns = [
path('<str:user_id>', views.get_user_profile, name='get_user_profile'),
]
requirements.txt:
bs4
django==3.1.12
django-cors-headers
djongo
gunicorn
html5lib
pymongo==3.12.3
python-decouple
yfinance
<
from djongo import models
class RecentSearch(models.Model):
search_term = models.CharField(max_length=100)
class Meta:
abstract = True
class DisplaySetting(models.Model):
setting_name = models.CharField(max_length=150)
visible = models.BooleanField()
class Meta:
abstract = True
class UserProfile(models.Model):
user_id = models.CharField(max_length=255, unique=True)
searches = models.ArrayField(model_container=RecentSearch, null=True)
display_settings = models.ArrayField(model_container=DisplaySetting, null=True)
objects = models.DjongoManager()
users/models.py:
в ipython:
IPython 8.4.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import djongo
In [2]: from djongo import transaction
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
Input In [2], in <cell line: 1>()
----> 1 from djongo import transaction
File ~/.local/lib/python3.10/site-packages/djongo/transaction.py:2, in <module>
1 from djongo.exceptions import NotSupportedError
----> 2 from djongo import djongo_access_url
4 print(f'This version of djongo does not support transactions. Visit {djongo_access_url}')
5 raise NotSupportedError('transactions')
ImportError: cannot import name 'djongo_access_url' from 'djongo' (/home/cchilders/.local/lib/python3.10/site-packages/djongo/__init__.py)
In [3]:
правильное использование get_or_create и сохранение новых данных только если created=True решает проблему дублирования моделей, когда должна быть только одна уникальная
@csrf_exempt
def get_user_profile(request, user_id):
pass
if request.method == 'GET':
# with transaction.atomic():
profile, created = UserProfile.objects.get_or_create(user_id=user_id)
if created:
profile.user_id = user_id
profile.searches = [
{'search_term': 'hd'},
{'search_term': 'wba'},
]
profile.display_settings = [
{'setting_name': 'showYieldChange', 'visible': True},
{'setting_name': 'showAllDividends', 'visible': True},
]
profile.save()
print("user saved in db")
# user = UserProfile.objects.get(user_id=user_id)
data = {
'user_id': profile.user_id,
'searches': profile.searches,
'display_settings': profile.display_settings
}
json_data = json.dumps(data)
return HttpResponse({json_data}, content_type='application/json')
вы должны установить уникальный атрибут, такой как user_id или биржевой тикер на unique=True
@csrf_exempt
def get_user_profile(request, user_id):
pass
if request.method == 'GET':
# with transaction.atomic():
profile, created = UserProfile.objects.get_or_create(user_id=user_id)
if created:
profile.user_id = user_id
profile.searches = [
{'search_term': 'hd'},
{'search_term': 'wba'},
]
profile.display_settings = [
{'setting_name': 'showYieldChange', 'visible': True},
{'setting_name': 'showAllDividends', 'visible': True},
]
profile.save()
print("user saved in db")
# user = UserProfile.objects.get(user_id=user_id)
data = {
'user_id': profile.user_id,
'searches': profile.searches,
'display_settings': profile.display_settings
}
json_data = json.dumps(data)
return HttpResponse({json_data}, content_type='application/json')
модели
class UserProfile(models.Model):
user_id = models.CharField(max_length=255, unique=True)
searches = models.ArrayField(model_container=RecentSearch, null=True)
display_settings = models.ArrayField(model_container=DisplaySetting, null=True)
objects = models.DjongoManager()