Hi!
Yes, it is.
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'tsanalysisapp.apps.TsanalysisappConfig',
# Django Rest Framework - DRF
'rest_framework',
# Django Rest Pandas - DRP
'rest_pandas',
# CORS
'corsheaders',
]
MIDDLEWARE = [
# CORS
'corsheaders.middleware.CorsMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
Le mercredi 26 février 2020 02:23:59 UTC+1, juanblo a écrit :
>
> Hi,
>
> In your Django application, session middleware is enabled ? [1]
>
> [1] https://docs.djangoproject.com/en/3.0/topics/http/sessions/
>
> On Tue, Feb 25, 2020 at 8:16 AM Guy NANA <[email protected]
> <javascript:>> wrote:
>
>> I don't understand the first part of your answer : *Make sure your
>>> line request.session['ts_dataset_copy'], print anything above it.*
>>
>> For sending dataset file from angular app to django, I've used a post
>> request.
>>
>> The matter is that when I send the second http crosss-origin from angular
>> app to my django app the previously session's elements that I've stored
>> doesn't exist anymore. (I checked the session keys in the
>> upload_local_dataset and receive *In upload_local_dataset Session's keys
>> : dict_keys(['ts_dataset', 'ts_dataset_copy'])* but in the second views
>> I received an empty dict *In cv_classification Session's keys :
>> dict_keys([])* so pandas' read_json throws an error *ValueError: Invalid
>> file path or buffer object type: *
>> How can I save the state of session between two http cross-origin from
>> angular app to django app ?
>>
>> Le mardi 25 février 2020 13:29:53 UTC+1, Pankaj Sharma a écrit :
>>
>>> Make sure your line request.session['ts_dataset_copy'], print anything
>>> above it, also make sure you are using POST method in forms (method =
>>> "post")
>>>
>>> On Tuesday, February 25, 2020 at 3:47:25 AM UTC+5:30, Guy NANA wrote:
>>>>
>>>> I have an angular frontend app which send file to django backend which
>>>> data is setting in django session. After I send a httprequest to django
>>>> backend to make ML tratements on that data and get the results. But I've a
>>>> 500 sever error: keyerror 'ts_dataset_copy': KeyError: 'ts_dataset_copy'
>>>> [24/Feb/2020 18:43:46] "GET /cv_classification/5/FOTS/283/None/0/0
>>>> HTTP/1.1" 500 78264. Here are my django code:
>>>>
>>>> Firstly I upload timeseries dataset file from angular frontend (All
>>>> thing is ok)
>>>> @csrf_exempt
>>>> def upload_local_dataset(request):
>>>> if request.method == 'POST':
>>>> dataset = pd.read_csv(request.FILES.get('datasetfilepath'),
>>>> header=None, index_col=None)
>>>> request.session['ts_datset'] = dataset.to_json(orient=
>>>> 'values')
>>>> request.session['ts_dataset_copy'] = dataset.to_json(orient
>>>> ='values')
>>>>
>>>> return HttpResponse(dataset.to_json(orient='values'))
>>>>
>>>>
>>>>
>>>> # second httrequest that throws a server internal error
>>>>
>>>> def cv_classification(request, kfolds, dissimilarity_func,
>>>> windows_length=0, noisy_law="", mu=0,
>>>>
>>>> std=0):
>>>> noisy_law = noisy_law.lower()
>>>> df = pd.read_json(request.session['ts_dataset_copy'],
>>>> orient='values')
>>>> predictions = cv_classify(df, kfolds, dissimilarity_func,
>>>> windows_length, noisy_law, mu, std)
>>>> return JsonResponse(predictions, safe=False)
>>>>
>>>>
>>>>
>>>> Thanks for your help!
>>>>
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>>
>
>
> --
> Juan
>
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