Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Django get uploaded images
I have created a model to get images and upload them to upload folder and the link is available in database. But when I call the image in my index.html it does not work settings.py USERFILES_DIRS = os.path.join(BASE_DIR, 'upload') STATIC_URL = '/static/' STATICFILES_DIRS = [ USERFILES_DIRS, os.path.join(BASE_DIR, 'static'), ] models.py class MyShoes(models.Model): title = models.CharField(max_length=50) description = models.CharField(max_length=50) price = models.DecimalField(max_digits=10, decimal_places=2) display_picture = models.ImageField(upload_to='upload', height_field=None,width_field=None, max_length=None) featured = models.BooleanField() views.py def myIndex(request): myShoes = models.MyShoes.objects.all() return render(request,'index.html',{'myshoes':myShoes}) HTML {% for x in myshoes %} <div class="card" style="width: 18rem;"> <img src="{{x.display_picture}}" class="card-img-top" alt="..."> <div class="card-body"> <h5 class="card-title">{{x.title}}</h5> <p class="card-text">{{x.description}}</p> <p class="card-text">{{x.price}}</p> {{x.display_picture}} <a href="" class="btn btn-primary">Go somewhere</a> </div> </div> {%endfor%} here in my HTML i am getting the url 'upload/shoe-1384193-1279x850.jpg' but HTML does show it in img tag -
I need Mutiple fields from both models in an m2m .csv export
I have a working solution for exporting a .csv file from a join of 2 models via a manytomany relationship and my issue is I don't know how to express, in code, how to bring in multiple fields from the model that is being joined. I can add multiple columns from the model that has the m2m field defined but I can only bring in one column from the model that is being referenced. How do I bring in multiple coulmns from both models? models.py class dbmobile(models.Model): Site_Code = models.CharField('Site Code', max_length=20, blank=True, null=True, choices=SITE) Account_Number = models.CharField('Account Number', max_length=20, blank=True, null=True,) Mobile_Number = models.CharField('Mobile_Number', max_length=20, blank=True, null=True,) User_Name = CharField('User Name', max_length=120, blank=True, null=True,) User_id = models.CharField('User Id', max_length=20, blank=True, null=True,) class expense(models.Model): ExcludeTax = models.DecimalField('Exclude Tax', max_length=20, blank=True, null=True, max_digits=10, decimal_places=2) IncludeTax = models.DecimalField('Include Tax', max_length=20, blank=True, null=True, max_digits=10, decimal_places=2) user = models.ManyToManyField(dbmobile, blank=True) Date = models.DateField(default=now) views.py def export_csv(request): response = HttpResponse(content_type='text/csv') response['Content-Disposition'] = 'attachment; filename="file.csv"' employees = expense.objects.all() writer = csv.writer(response) writer.writerow (['Date', 'Tax Included', 'User']) for e in employees: writer.writerow([e.Date, e.IncludeTax, ', '.join([e.User_Name for e in e.user.all()]),]) return response -
Django Polls-App: dynamically change number of choices in create-poll-form
After completing the Django beginner tutorial, I managed to build a create form to create a new poll with multiple choices. Now i want to add a button that adds another text-field for another choice. I'm new to web development and i struggle with passing variables from templates to views. I read here: Passing variable from django template to view, that there are essentially 4 ways to do this. I am currently using option nr. 3 to specify the number of choices displayed, but i am sure that option 1 would be more elegant, hence the number of choices wouldn't be displayed in the url. This is my current code: {% extends "base.html" %} {% block content %} {% load static %} <link rel="stylesheet" type="text/css" href="{% static "polls/style.css" %}"> <form method="POST" enctype="multipart/form-data"> {% csrf_token %} {{ form.as_p }} {{ choice_forms.management_data }} <div class="pollschoice">{{ choice_forms.as_ul }}</div> <a href="{% url "polls:create" nr_of_choices|add:1 %}"><input type="button", value="Add Choice"> </a> <a href="{% url "polls:create" nr_of_choices|add:-1 %}"><input type="button", value="Remove Choice"> </a> <input type="submit", value="Save" /> </form> {% endblock %} def createview(request, nr_of_choices): # initialize forms nr_of_choices = max(nr_of_choices, 1) form = QuestionForm(request.POST or None) choiceFormSet = formset_factory(ChoiceForm, extra=nr_of_choices) choice_forms = choiceFormSet(request.POST or None) # save question … -
Django admin doesn't show model/task changes
I Have a celery task running which calls an API to get some response. If the API call is successful, then the output is stored in redis in order to use it as a dropdown list in the admin page. But, if the API response fails, then I disable the add option in the Django admin page which works fine. The issue: After failing when the API response is successful again, then the admin page doesn't show the dropdown list. Instead it shows an empty box. To make it work again, I have to reload the server manually. Is there a way to reload server automatically when the API response changes? -
Django (Quiz/Exam app) forms for multiple table. Need help to create a form which is
Quiz app which has following models from django.db import models from classroom.models import Subject from django.contrib.auth.models import User # Create your models here. class Exam(models.Model): name = models.CharField(max_length=120) subject = models.ForeignKey(Subject, on_delete=models.CASCADE) number_of_questions = models.IntegerField() required_score_pass =models.IntegerField(default=40,) time = models.IntegerField(help_text="duration of test in minutes") def __str__(self): return f"{self.subject}: {self.name}" def get_questions(self): return self.question_set.all() class Question(models.Model): text = models.TextField() exam = models.ForeignKey(Exam, on_delete=models.CASCADE) def __str__(self): return f"{self.exam.name}: {self.text}" def get_answers(self): return self.answer_set.all() def get_correct_answers(self): for answers in self.get_answers(): if answers.correct: return answers.text class Answer(models.Model): text = models.CharField(max_length=200) correct = models.BooleanField(default=False) question =models.ForeignKey(Question, on_delete=models.CASCADE) def __str__(self): return f" question: {self.question.text}, answer: {self.text}, correct: {self.correct}" class Result(models.Model): exam = models.ForeignKey(Exam, on_delete=models.CASCADE) user = models.ForeignKey(User, on_delete=models.CASCADE) score = models.FloatField() I want to create a form for these models which are depended on each other. Any suggestion/idea for views or template are also welcome. Most of the models needs to save first since they will be need for ForeignKey fields. -
How to use Mailgun's recipient-variables with Django SMTP mail backend?
How can I properly send batch/bulk/mass emails using MailGun in Django using SMTP protocol? What I've tried so far? I am using django.core.mail.backends.smtp.EmailBackend as my EMAIL_BACKEND and this is the code snippet that I have tried to send the emails. from django.core.mail import EmailMultiAlternatives import json to_emails = [ "mail_1@example.com", "mail_2@example.com", "mail_3@example.com", "mail_4@example.com", "jerinpetergeorge@gmail.com", ] mail = EmailMultiAlternatives( subject="Hey - %recipient.name%", body="Hey %recipient.name%,\n\nThis is just a batch email test!!!", from_email="JPG <me@somehost.com>", to=to_emails, ) recipient_variables = { address: {"name": address} for address in to_emails } mail.extra_headers["X-Mailgun-Recipient-Variables"] = json.dumps(recipient_variables) response = mail.send() print(response) and I've got the mail as below, As we can see, the to attribute is filled with all email addresses, which is not what I am expecting. So, how can I tell the Mailgun/Django to parse my variables properly in order to make the emails looks more personal? Notes I prefer to use SMTP protocol I've tried the REST APIs of Mailgun and it was a success (but, I prefer SMTP) I found django-anymail and seems it has the feature. But, It also uses the APIs (correct me if I am wrong) -
Show most frequent tags in Django CreateView
I am trying to show the most frequent tags to select from when adding a post. However, when I added the get_context_data, the form disappeared. class AddPostView(CreateView): model = Post form_class = AddPostForm template_name = 'add_post.html' def get_context_data(self, **kwargs): common_tags = Post.tags.most_common()[:4] context = { 'common_tags': common_tags } return context # gets the user id def form_valid(self, form): form.instance.author = self.request.user return super().form_valid(form) And this is my form class AddPostForm(forms.ModelForm): class Meta: model = Post fields = ('title','summary', 'body', 'header_image', 'category', 'tags') labels = { "title": "العنوان", "tags": "العلامات", "category": "التصنيف", "summary":"الملخص", "body": "المحتوى", "header_image": "الغلاف", } widgets = { 'title': forms.TextInput(attrs={'class':'form-control'}), 'tags': forms.TextInput(attrs={'class':'form-control'}), 'category': forms.Select(choices=choices_list, attrs={'class':'form-control'}), 'summary': forms.TextInput(attrs={'class':'form-control'}), 'header_image': forms.FileInput(attrs={'class':'form-control'}), 'body': forms.Textarea(attrs={'class':'form-control'}), } -
i want a move this logic to django utils file. I tried some code but failed
This is the code. I am using graphene django. I dont want to write logic in graphQL. I want to shift this logic to utils.py file class CreateCareer(graphene.Mutation): _career = graphene.Field(CareerType) class Arguments: input = CareerInput(required=True) def mutate(cls, root, info, input): try: input["from_date"] except: return GraphQLError("Please select from_date") try: input["current_work_here"] is False and not input["to_date"] except: raise Exception("Please select to_date") if input["current_work_here"] is False: if input["from_date"] > input["to_date"]: return GraphQLError("from_date must less than to_date") career = CandidateCareer.objects.create(**input) return CreateCareer(_career=career) -
Can I extend parent's class list attribute on class level?
Suppose, I have the following parent class: class Parent: permissions = ['CanEdit', 'CanCreate'] I need to extend permissions attribute in my child class without changing the initial contents and so that this change would be on the class level, not instance, meaning: print(Parent.permissions) Output: ['CanEdit', 'CanCreate'] And I need the something like this in my child class: class Child(Parent): permissions += ['CanManage'] print(Child.permissions) With the output: ['CanEdit', 'CanCreate', 'CanManage'] Is this even possible to implement? -
Count combination of 2 fields
I would like all the plays of a song per radiostation. class Airplay(Timestamps): song = models.ForeignKey(Song, on_delete=models.CASCADE) radio = models.ForeignKey(Radio, on_delete=models.CASCADE) airedAt = models.DateTimeField(blank=True) I try to calculate the airplay like this Airplay.objects.all().annotate(play_count=Count(Concat('song__id', 'radio__id'), distinct=True)).order_by('play_count') I see several occurrences of a song x station combination. But play_count is always 1. -
Why is this django registration mechanism not working for my custom user model?
I was working on a project where I was implementing a custom user model using django and registration,login for the same. But unfortunately, I guess the registration mechanism doesn't work correctly. How do I know that is, in Admin panel, it shows the new user where while trying to login with the new user, I get "Please enter a correct username and password. Note that both fields may be case-sensitive." . I've spent around 2 days googling,stackoverflowing. But none of them has solved my problem. My Code Models.py: from django.db import models from django.utils import timezone from django.utils.translation import gettext_lazy as _ from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin, BaseUserManager class CustomAccountManager(BaseUserManager): def create_superuser(self, email, username, password, **other_fields): other_fields.setdefault('is_staff', True) other_fields.setdefault('is_superuser', True) other_fields.setdefault('is_active', True) if other_fields.get('is_staff') is not True: raise ValueError('Superuser must be assigned to is_staff=True.') if other_fields.get('is_superuser') is not True: raise ValueError('Superuser must be assigned to is_superuser=True.') return self.create_user(email, username, password, **other_fields) def create_user(self, email, username, password, **other_fields): if not email: raise ValueError(_('You must provide an email address')) email = self.normalize_email(email) user = self.model(email=email, username=username, **other_fields) user.set_password(password) user.save(using=self._db) return user class UserModel(AbstractBaseUser, PermissionsMixin): email = models.EmailField(_('email address'), unique=True) username = models.CharField(max_length=150, unique=True) first_name = models.CharField(max_length=150, blank=True, null=True) last_name = models.CharField(max_length=150, blank=True, … -
Model() got an unexpected keyword argument 'instance'
I am currently trying to get an instance of my model to read from it and print reports based on the model However when trying to reach the URL I get the above error, I assume that the instance variable doesn't work but I don't know why. I have been reading other articles and found that others get this error when they use Form instead of ModelForm, so I don't know if this could be the same thing as that. Please see the below code : Model.py: class SettingsClass(models.Model): Complex = models.CharField(choices=complex_list , max_length = 22 ,default='1' , unique=True) Trial_balance_Year_to_date= models.BooleanField(default = False) tbytd_Include_opening_balances=models.BooleanField(default = False) tbytd_Only_use_main_accounts=models.BooleanField(default = False) tbytd_Print_null_values=models.BooleanField(default = False) tbytd_Print_description=models.BooleanField(default = True) tbytd_Print_account=models.BooleanField(default = True) tbytd_Sort_by_account_name=models.BooleanField(default = True) def __str__(self): return (self.Complex + ' Settings') View.py:: def reportsHome(request): model = SettingsClass.objects.all().order_by('Complex') content ={'model':model } return render(request, 'main/reportsHome.html' , content) def printReports(request , reports_pk): pkForm = get_object_or_404(SettingsClass , pk=reports_pk) form= SettingsClass(instance=pkForm) complexName = form.Complex #CHECKING TRIAL BALANCE SETTINGS if form.Trial_balance_Year_to_date == True: printTrialBalanceYTD = True ### Printing Trial Balance PDF response = HttpResponse(content_type= 'application/pdf') response['Content-Disposition']= 'attachment; filename=TrialBalance' + \ str(datetime.now()) + '.pdf' response['Content-Transfer-Encoding'] = 'binary' #SQL STATEMENT baseSelect = 'SELECT '+ op5 + op4 + ' Debit , … -
Django channels elastic beanstalk (linux 2) hooks postdeploy: -b command not found
For deployment of django channels on elastic beanstalk (linux 2 AMI) I tried implementing this blog ,it required creation of ./platform/hooks/postdeploy/ and in it two files 01_set_env.sh and 02_run_supervisor_daemon.sh, on eb deploy it fails and on checking the eb-engine.logs this error shows up. 2021/09/28 05:05:44.382229 [ERROR] An error occurred during execution of command [app-deploy] - [RunAppDeployPostDeployHooks]. Stop running the command. Error: Command .platform/hooks/postdeploy/02_run_supervisor_daemon.sh failed with error exit status 2. Stderr:.platform/hooks/postdeploy/02_run_supervisor_daemon.sh: line 13: -b: command not found 02_run_supervisor_daemon.sh #!/bin/bash # Get system environment variables systemenv=`cat /opt/elasticbeanstalk/deployment/custom_env_var | tr ' ' ',' | sed 's/%/%%/g' | sed 's/export //g' | sed 's/$PATH/%(ENV_PATH)s/g' | sed 's/:$PYTHONPATH//g' | sed 's/$LD_LIBRARY_PATH//g'` systemenv=${systemenv%?} systemenv=`echo $systemenv | sed 's/,/",/g' | sed 's/=/="/g'` systemenv="$systemenv"" # Create daemon configuration script daemonconf="[program:daphne] command=daphne -b :: -p 5000 backend.asgi:application directory=/var/app user=ec2-user numprocs=1 stdout_logfile=/var/log/stdout_daphne.log stderr_logfile=/var/log/stderr_daphne.log autostart=true autorestart=true startsecs=10 ; Need to wait for currently executing tasks to finish at shutdown. ; Increase this if you have very long running tasks. stopwaitsecs = 600 ; When resorting to send SIGKILL to the program to terminate it ; send SIGKILL to its whole process group instead, ; taking care of its children as well. killasgroup=true environment=$systemenv" # Create the Supervisor conf script echo "$daemonconf" … -
BitBucket Deploy to Google Cloud appEngine could not find file Django
I have .yml file for pipline of django the code for deploye is - pipe: atlassian/google-app-engine-deploy:0.7.3 variables: KEY_FILE: $KEY_FILE PROJECT: $PROJECT DEPLOYABLES: 'realpars_platform/app.yaml' VERSION: '${BITBUCKET_BUILD_NUMBER}' PROMOTE: 'true' STOP_PREVIOUS_VERSION: 'true' EXTRA_ARGS: '--verbosity=debug --quiet' But when i run this Error showes. ERROR: (gcloud.app.deploy) [/opt/atlassian/pipelines/agent/build/realpars_platform/app.yaml] does not exist. ✖ Deployment failed. -
Check Python Version Used in Mod_WSGI
I can't find out which python environment is being used or install location is being used by mod_wsgi in Apache. In my apache config I didn't gave any specific venv config. ServerName ServerAlias DocumentRoot /home/Downloads ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined Alias /static /home/Downloads/static <Directory /home/Downloads/static> Require all granted </Directory> <Directory /home/Downloads/samples> Require all granted </Directory> <Directory /home/Downloads> <Files wsgi.py> Require all granted </Files> </Directory> #WSGIDaemonProcess group python-path=/home/Downloads python-home=/home/envlin WSGIProcessGroup group WSGIScriptAlias / /home/Downloads/wsgi.py I removed the critical info and replaced with random info. Here's my apache restart log Apache Logs Apache/2.4.46 (Ubuntu) OpenSSL/1.1.1j mod_wsgi/4.7.1 Python/3.9 configured -- resuming normal operations Question Is there any way to get which python version and install location is being used by mod_wsgi. **Python Path's ** If I fetch python path's normally here's the result. sys.path = [ '/root', '/usr/lib/python39.zip', '/usr/lib/python3.9', '/usr/lib/python3.9/lib-dynload', '/usr/local/lib/python3.9/dist-packages', '/usr/lib/python3/dist-packages', '/usr/lib/python3.9/dist-packages', ] -
Python 2.7 Failed building wheel for MySQL-python
I'm new to Python && Django. In activated virtual environment when i run pip install mysqlclient==1.3.9 I get Failed building wheel for MySQL-python I tried to install without specific version as well. I also tried solutions like running: sudo apt-get install build-essential autoconf libtool pkg-config python-opengl python-pil python-pyrex python-pyside.qtopengl idle-python2.7 qt4-dev-tools qt4-designer libqtgui4 libqtcore4 libqt4-xml libqt4-test libqt4-script libqt4-network libqt4-dbus python-qt4 python-qt4-gl libgle3 python-dev and updated pip. ERROR: Command errored out with exit status 1: command: /home/tech/Projects/dpython/sk/env/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-8CZORn/mysql-python/setup.py'"'"'; __file__='"'"'/tmp/pip-install-8CZORn/mysql-python/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-igaywV cwd: /tmp/pip-install-8CZORn/mysql-python/ Complete output (30 lines): running bdist_wheel running build running build_py creating build creating build/lib.linux-x86_64-2.7 copying _mysql_exceptions.py -> build/lib.linux-x86_64-2.7 creating build/lib.linux-x86_64-2.7/MySQLdb copying MySQLdb/__init__.py -> build/lib.linux-x86_64-2.7/MySQLdb copying MySQLdb/converters.py -> build/lib.linux-x86_64-2.7/MySQLdb copying MySQLdb/connections.py -> build/lib.linux-x86_64-2.7/MySQLdb copying MySQLdb/cursors.py -> build/lib.linux-x86_64-2.7/MySQLdb copying MySQLdb/release.py -> build/lib.linux-x86_64-2.7/MySQLdb copying MySQLdb/times.py -> build/lib.linux-x86_64-2.7/MySQLdb creating build/lib.linux-x86_64-2.7/MySQLdb/constants copying MySQLdb/constants/__init__.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants copying MySQLdb/constants/CR.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants copying MySQLdb/constants/FIELD_TYPE.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants copying MySQLdb/constants/ER.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants copying MySQLdb/constants/FLAG.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants copying MySQLdb/constants/REFRESH.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants copying MySQLdb/constants/CLIENT.py -> build/lib.linux-x86_64-2.7/MySQLdb/constants running build_ext building '_mysql' extension creating build/temp.linux-x86_64-2.7 x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -ffile-prefix-map=/build/python2.7-5hlAcC/python2.7-2.7.18=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -Dversion_info=(1,2,5,'final',1) -D__version__=1.2.5 -I/usr/include/mysql -I/usr/include/python2.7 -c _mysql.c -o build/temp.linux-x86_64-2.7/_mysql.o _mysql.c:44:10: fatal error: my_config.h: … -
Editing Forign Key Attributes Of a Model From Django Admin
I have two model classes in my django project. class User(AbstractBaseUser, PermissionsMixin): username = None phone = models.CharField(max_length=16, unique=True) password = models.CharField(max_length=255, default="asdf") name = models.CharField(max_length=255, default="User") email = models.EmailField(max_length=255, blank=True, null=True) class Booking(models.Model): profile = models.ForeignKey(User, null=False, on_delete=models.CASCADE, db_index=True, default=1) latitude = models.DecimalField(decimal_places=20, max_digits=30, default=1.0000) longitude = models.DecimalField(decimal_places=20, max_digits=30, default=1.0000) Now In the django admin panel, I want to change the name of the user from the edit screen of a booking. I tried with Inline Models, with it I can edit booking from user's edit screen but it is not working in this case. Is there any other options available for this? -
Admin email handler with filter keeps sending emails
I am trying to silence a specific error getting emailed through the django.request logger: 'django.request': { 'handlers': ['mail_admins'], 'level': 'ERROR', 'propagate': True, } The filter silence_invalid_header is attached to the handler: 'handlers': { 'mail_admins': { 'level': 'ERROR', 'filters': ['require_debug_false', 'silence_invalid_header'], 'class': 'django.utils.log.AdminEmailHandler' } } This is the filter configuration: 'silence_invalid_header': { '()': 'mysite.logger_utils.SilenceInvalidHttpHostHeader' } And the filter class itself: class SilenceInvalidHttpHostHeader(logging.Filter): def filter(self, record): return 'Invalid HTTP_HOST header' not in record.msg However, I keep getting emails. Although django.request is set to propagate, it should propagate to Django's default logger django defined in django.utils.log.DEFAULT_LOGGING: 'django': { 'handlers': ['console'], } And that hanlder just writes to the standard output: 'console': { 'level': 'INFO', 'filters': ['require_debug_true'], 'class': 'logging.StreamHandler', } So why do I keep getting emails with that error and how can I silence them? -
base64 saves blank image - django
im trying to capture image from webcam , but when i decode it using base64 it only saves a blank image ? this is what i tried class Document(models.Model): booking =models.ForeignKey(Booking,on_delete=models.PROTECT) docs = models.ImageField(upload_to=upload_docs) my views.py @login_required def add_new_image(request,id): obj = get_object_or_404(Booking,id=id) if request.method == 'POST': data = request.POST.get('documents') format, imgstr = data.split(';base64,') ext = format.split('/')[-1] data = ContentFile(base64.b64decode(imgstr), name='temp.' + ext) images = UploadDocumentsForm(request.POST,request.FILES) if data: photo = Document.objects.create( booking = obj, docs = data ) photo.save() return redirect(reverse_lazy("booking:add_booking",kwargs={"room_no":obj.room_no.room_no})) else: messages.error(request,_('choose or capture right image ..')) return render(request,'booking/add_img.html',{'obj':obj,'form':images}) here is my template const player = document.getElementById('player'); const docs = document.getElementById('document') const captureButton = document.getElementById('capture'); const canvas = document.getElementById('canvas'); const context = canvas.getContext('2d'); const imgFormat = canvas.toDataURL(); docs.value = imgFormat const constraints = { video: true, }; captureButton.addEventListener('click', (e) => { context.drawImage(player, 0, 0, canvas.width, canvas.height); e.preventDefault(); }); navigator.mediaDevices.getUserMedia(constraints) .then((stream) => { player.srcObject = stream; }); <form action="" method="POST" enctype="multipart/form-data" dir="ltr">{% csrf_token %} <input type="text" name="documents" id="document"> <video id="player" controls autoplay></video> <button id="capture">Capture</button> <canvas id="canvas" width=320 height=240></canvas> <button class="header pt-2 text-white px-4 p-1 rounded-lg mt-4">{% trans "save" %}</button> </form> please is there solution , i appreciate your helps .. thank you in advance .. -
Passing data from a view to a form in django
I have a django formtool: the first step it needs to insert a name and select N values from a MultipleChoiceField. When user submit this form in the second step, I need to show N MultipleChoiceField where every elements of each MultipleChoiceField are retrieved from the database. I need to take the values of the first step form, retrieve from Db the data e send these to the second steps (forms.py). For the second step I suppose I need a formset. I have read some few questions about passing value from a view to a form but any solution. This is my code: forms.py from django import forms from station.models import Station from django.forms import formset_factory from .models import Vdl station_all=Station.objects.all() class VdlSelectStationsForm(forms.Form): vdl_name = forms.CharField(label='nome virtual data logger', max_length=20, widget=forms.TextInput(attrs={'class': 'form-control', 'placeholder': 'nome vdl'})) stations = forms.ModelMultipleChoiceField(queryset=station_all) class VdlSelectSensorsForm(forms.Form): sensor_list_for_station = forms.ModelMultipleChoiceField(queryset=Vdl.objects.all()) #filter(id_user = id_user)) VdlSelectSensorsForm = formset_factory(VdlSelectSensorsForm, extra=1) views.py from django.shortcuts import render from .forms import VdlSelectStationsForm, VdlSelectSensorsForm from formtools.wizard.views import SessionWizardView class VdlWizard(SessionWizardView): template_name = "vdl.html" form_list = [VdlSelectStationsForm, VdlSelectSensorsForm] def get_form_initial(self, step): initial = {} # If at second step, add image path to initial data for canvas field if step == '1': first_step_data = self.storage.get_step_data('0') … -
Why I cannot get email user login with line by Django django-social-auth
Django Setting AUTHENTICATION_BACKENDS = [ 'social_core.backends.line.LineOAuth2', 'django.contrib.auth.backends.ModelBackend', ] SOCIAL_AUTH_LINE_KEY = '???????' SOCIAL_AUTH_LINE_SECRET = '????????' SOCIAL_AUTH_LINE_SCOPE = ['profile email openid'] I follow this scope and request but the response don't send user email to my app -
How to parse date string containing mm/yyyy in django models?
I'm writing existing SQLite3 database to django models. Some dates replicate themselves and I need them encoded, so I create a class in the model to store unique periods in the following form: mm/yyyy. What would be the right syntax to set date, so in django they have the same format, but as a datetime object? class Periods(models.Model): period = models.DateField() def __str__(self): return self.period Thanks in advance. -
Can't log in into Django admin panel
I did look up the other people having a similar problem, but mine is slightly different. When I try to log in the Django admin panel, my credentials (which are correct) don't work: I'm told I have to enter the right ones, that it might be case-sensitive, etc. This occured first on a project where I fiddled with custom user/superusers and did terrible things to migrations, so I understood the root of the problem. Now, the real problem is that when I switched back to another (fully working) project and tried to log into the admin console, I still had (and have) this bug even though a) it worked before and I haven't touched the code since (a week ago) b) I'm using Django's user model for this project. I tried clearing my cookies and restarting my computer, but nothing's working. Both projects are fully independant; the only common point they have is django + being hosted on a SQlite local server. Did I break everything? -
How to make in django templates a bootstrap card always stay the same height
I am working on a Django project and in templates, I am using bootstrap for styling and using cards. I want all the cards to be the same height and I used min height also but it's not working. Here is my html: <section class="devlist"> <div class="py-5"> <div class="container"> <div class="row hidden-md-up"> {% for profile in profiles %} <div class="col-md-4"> <div class="card" style="width: 18rem;"> <img src="{{ profile.profile_image.url }}" class="card-img-top" alt="..."> <div class="card-body" style="min-height: 441px;"> {% if profile.name|length > 13 %} <h5 class="card-title">{{profile.name|slice:"13"}}...</h3> {% else %} <h5 class="card-title">{{profile.name}}</h5> {% endif %} {% if profile.short_intro|length > 25 %} <h6 class="card-subtitle text-muted"> {{profile.short_intro|slice:"40"}}... </h6> {% else %} <h6 class="card-subtitle text-muted"> {{profile.short_intro}} </h6> {% endif %} {% if profile.bio|length > 100 %} <p class="card-text"> {{profile.bio|slice:"100"}} </p> {% else %} <p class="card-text"> {{profile.bio}} </p> {% endif %} <a href="#" style="margin-bottom:1%;" class="btn btn-primary">Go somewhere</a> </div> </div> </div> {% endfor %} </div> </div> </div> </section> How can I make all the cards of the same height irrespective of the content -
Tensor is not an element of this graph when calling in django
i’m facing a problem with TF and Django. my code is: modelSavePathName = os.path.join(data_dir, f'detector_26082021_2111.h5') detector.model.load_weights(modelSavePathName, by_name=True) modelSavePathName = os.path.join(data_dir, f'recognizer_27082021_0846.h5') recognizer.model.load_weights(modelSavePathName, by_name=True) pipeline = keras_ocr.pipeline.Pipeline(detector=detector, recognizer=recognizer, max_size=4096) imagesDF = keras_ocr.tools.read(img) pr = pipeline.recognize(images=[imagesDF ])[0] when i call pipeline.recognize(images=[imagesDF ])[0] localy it works. but when i call it in Django view i get this error: ValueError at / Tensor Tensor(“conv_cls.8_1/BiasAdd:0”, shape=(None, None, None, 2), dtype=float32) is not an element of this graph. can anyone help me please, I’m desperate. best regards
