Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Django MySQL REPEATABLE READ "data loss"
I'm looking for information about what is behind the entry in Django 2.0 release notes. Stating: MySQL’s default isolation level, repeatable read, may cause data loss in typical Django usage. To prevent that and for consistency with other databases, the default isolation level is now read committed. You can use the DATABASES setting to use a different isolation level, if needed. As I understand repeatable read is "stricter" than read commited, so what is Django doing to produce "data loss" is a question bugging me for sometime now. Is it stuff like prefetch_related? Or maybe in general making an UPDATE based on potentially stale (SELECTED earlier in a thread) is or can be considered data loos? Or even better - maybe there's something that only MySQL does or has a bug that makes it dangerous on repeatable read? Thank you. -
Django redirect with a custom error message
I'm new in using django templating/frontend and I would like to redirect to a page with a custom message in django. Here's what I've tried but I can't make It work. View return redirect("/login",custom_error="Try Again Later") Login.html {% if custom_error %} <p class="errornote"> {{ custom_error }} </p> {% endif %} Any suggestions on how to make this work? -
How to make all the contents visible in dropdown menu in django?
I have made a dropdown menu so that a user could select one option but whenever I click on dropdown menu, all the contents hide itself except the one I hover a mouse on it. How to make all the contents visible? I think the problem is in profile.html but not understanding how to deal with it? forms.py class ProfileUpdateForm(forms.ModelForm): class Meta: model = Profile fields = ['image','payment_method','detail'] models.py class Profile(models.Model): user = models.OneToOneField(User, on_delete=models.CASCADE) payment_method = models.CharField(max_length=10, choices=Paymet_choices) profile.html {{p_form|crispy}} -
How to convert an uploaded image to base64 and decode it back, and save the file as PNG?
I'm creating an image upload page which allows users to upload pages. When a user uploads an image, I want to convert that image using base64 and decode it back to a new image and save it in a PNG format extension. How do I do this? You can view my current models.py code: from django.db import models import os from PIL import Image from datetime import date import datetime from .validators import validate_file_extension import base64 def get_directory_path(instance, filename): today = date.today() t = datetime.datetime.now() day, month, year = today.day, today.month, today.year hour, minutes, seconds = t.hour, t.minute, t.second filename = str(day) + str(month) + str(year) + str(hour) + str(minutes) + str(seconds) + '.png' dir = 'media' path = '{0}/{1}'.format(dir, filename) return path class Image(models.Model): image = models.FileField(upload_to = get_directory_path, default = 'media/sample.png', validators=[validate_file_extension]) created_date = models.DateTimeField(auto_now = True) def __str__(self): return str(self.id) -
how to filter a database table row and update a specific column in django?
i have a database table and i want to filter it by id and update a specific object (column) with an if condition that i have write. but it get an error: attributeError: 'int' object has no attribute 'save' if current_complete['current_complete'] == 65 and optimestic: optimestic_percentagex = current_complete['current_complete'] * weight['weight'] if probable or pessimistic: probable_percentage = current_complete['current_complete'] * weight['weight'] pessimistic_percentage = current_complete['current_complete'] * weight['weight'] obj = Forcast.objects.filter(id=id).update(optimestic_percentage=optimestic_percentagex).save() obj.save() i except that i can update optimestic_percentage with the if condition that i have created. -
Why doesn't the 'follow' button on django work?
I'm using Django 2.2 and PostgreSql. I'm trying to create a simple app that I want to follow neighboring users. 'Follow' button will increase the number of followed, 'Unfollow' button will decrease the number of followed. However, the 'Follow' button does not work. How can I solve this problem? following/models.py class Following(models.Model): follower = models.ForeignKey(User, on_delete=models.CASCADE, related_name='fallower', null=True) followed = models.ForeignKey(User, on_delete=models.CASCADE, null=True, related_name='fallowing') following/views.py def user_follow_unfollow(request): response = sub_user_follow_unfollow(request) data = response.get('data') followed = response.get('followed') numbers_followed_and_follower= Following.user_followed_and_follower(followed) context = {'user': followed, 'followers': numbers_followed_and_follower['followers'], 'followeds': numbers_followed_and_follower['followeds']} html = render_to_string('following/following_partion.html', context=context, request=request) data.update({'html': html}) return JsonResponse(data=data) templates.following_partion.html {% if request.neighbor_detail != user %} <div> <button followed='{{ neighbor_detail.username }}' followed='{{ request.neighbor_detail.username }}' url="{% url 'following:user_follow_and_unfollow' %}" id="follow_unfollow_button" class="btn btn-lg btn-success"> {% if does_follow_the_user%} <b>Unfollow</b> {% else %} <b>Follow</b> {% endif %} </button> </div> {% endif %} <div class="followers col-lg-offset-3 col-md-3 col-md-offset-3 col-lg-3 text-center"> <span><b>followers</b></span> <button url="{% url 'following:fallowed-or-fallowers-list' 'fallowers' %}" follow_type="followers" username="{{ neighbor_detail.username }}" class="follow_button btn-block btn btn-primary"> {{ followers}} </button> <div class="followeds col-lg-3 col-md-3 text-center"> <span><b>Followeds</b></span> <button url="{% url 'following:followed-or-followers-list' 'followed' %}" follow_type="followed" username="{{ neighbor_detail.username }}" class="follow_button btn-block btn btn-success"> {{ followeds}} </button> my script <script> $("#follow_unfollow_button").click(function () { var $this = $(this); var $url = $this.attr('url'); var $takip_eden = $this.attr('follower'); … -
Path to my media file won't work in django project
I've tried to put my site that I've designed into django, and I've encountered some problemes with paths to my media file in css and javascript but now my css paths work but my javascripts file don't. Thanks in advance for any help provided! I've tried to change my STATIC_URL and all but it didn't work. it seems like django is changing my path for no reason. My project tree: https://ibb.co/DbNB2Tr WORKING: How I wrote my Path into css (works.css in my project) @font-face { font-family: gameboy; src: url('media/font/gameboy.ttf'); } background-image: url('media/gif/drive3.gif'); NOT WORKING: How I wrote my Path into javascript (works.js in my project) var pic1 = 'media/picture/travis.jpg'; var pic2 = 'media/picture/snoop.jpg'; var pic3 = 'media/gif/vash.gif'; var pic4 = 'media/picture/snoop.jpg'; The http response: [07/Aug/2019 10:23:51] "GET /works/media/picture/snoop.jpg HTTP/1.1" 404 3066 My Settings file: Django settings for Music project. Generated by 'django-admin startproject' using Django 2.1.2. For more information on this file, see https://docs.djangoproject.com/en/2.1/topics/settings/ For the full list of settings and their values, see https://docs.djangoproject.com/en/2.1/ref/settings/ """ import os # Build paths inside the project like this: os.path.join(BASE_DIR, ...) BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) # Quick-start development settings - unsuitable for production # See https://docs.djangoproject.com/en/2.1/howto/deployment/checklist/ # SECURITY WARNING: keep the secret key used … -
Pytest do endless collecting of tests and doesb`t start
When I am running pytest command it starts to collect all tests, but this process is endless without any errors or mistakes. I don't understand what is the reason. If you have any ideas, please could you share them? Also if it helps I run it on MacOS, on my Ubuntu computer it works perfect. This is what happened: Test session starts (platform: linux, Python 3.7.3, pytest 5.0.1, pytest-sugar 0.9.2) Django settings: settings (from ini file) rootdir: /home/roziukp/space11/backend, inifile: setup.cfg plugins: xdist-1.29.0, forked-1.0.2, pythonpath-0.7.3, env-0.6.2, django-3.5.1, sugar-0.9.2, celery-4.3.0, cov-2.7.1, mock-1.10.4 collecting ... -
Django-tables pagination per_page not working as expected
I have a django-tables2 table with pagination via the RequestConfig class. I am trying to limit the results per page to 250 at max, to reduce database load and to keep the table organized. This is my code to limit the per_page GET parameter. def overview(request): # limit results per page to 250 results_per_page = 25 try: results_per_page = int(request.GET.get('per_page')) if request.GET.get('per_page') is not None else 25 sanetized_results = results_per_page if results_per_page <= 250 else 250 results_per_page = sanetized_results except: results_per_page = 25 pass # Create the pagination # BREAKS HERE RequestConfig(request, paginate={'per_page': results_per_page }).configure(table) The first part of the code works. however, at the RequestConfig it still uses the old per_page from the URL. Am I missing something? -
Django detective spots POST requests
I installed django-detective last night and today there are many weird post requests in it. It looks like somebody is trying to post stuff like this on my website: /wp-admin/admin-post.phpnd_stats_value_import_settings=home[nd_stats_option_value]https://jackielovedogs.com/pret Please do not go to this link as I think it might be hosting malware !! What does this mean? How can I prevent this from happening? Thank you -
uwsgi with Django, why have a system wide installation of uwsgi, and how does it integrate with sourcecode?
PS, before someone says it should be posted in serverfault/superuser/swengineering/etc/etc... I just read the descriptions of the related stack exchange websites (https://stackexchange.com/sites), and Stack overflow bests describe me, a programmer, not server maintainer, nor a sw development lifecycle something or other. Additionally, all the related questions I have been reading to do with uwsgi I have been reading are her on SO. Yes this question does not have code, but is related to my codebase. I have tried asking a related question before, only to get told to put it on another site, then on the other side told to put it back on the other site. Sorry, now that is out the way... The question... I have followed the official uwsgi docs to successfully deploy a nginx/uwsgi/django stack. The step I don't understand why is: Install uWSGI system-wide Why does one need to install it system wide for deployment? Why cant the deployment just call my virtual env? If I need the system wide installation, why do I need the virtual env version of uwsgi (is it only for dev purposes)? I dev on a different machine, and use djangos dev server to test with, so I don't need … -
Django How to pass instance to view
I can't find out how to do this, I have a list view, that when you click on one of the list objects, it takes you to an update page, but I can't work out how you pass the instance so to it so that and data posted goes to that instance on the database. CBV do this automatically in a hidden black box way, and I can't see how it is done for a function based view. Model class Project(models.Model): date_published = models.DateTimeField(auto_now_add=True) title = models.CharField(max_length=128, unique=True) slug = models.SlugField(max_length=64) def save(self, *args, **kwargs): if not self.id: self.slug = slugify(self.title) super(Project, self).save(*args, **kwargs) def __str__(self): return self.title Form class ProjectUpdateForm(forms.ModelForm): class Meta: model = Update fields = [ 'project', 'category', 'update' ] View def project_update_view(request, slug): obj = Project.objects.get(slug=slug) form = ProjectUpdateForm(request.POST or None) if form.is_valid(): form.save() context = { "form": form, "object": obj } return render(request, 'project_portal/project_update.html', context) url: path('<slug:slug>/update/', project_update_view, name='project-update'), So I want to be able to do away with the 'project' field in the Form because the user is already looking at that instance he shouldn't have to then pick it in the form. -
What do errors "init_1 marked as not fetchable", or "Tensor embedding_2_input:0 not found in graph" mean?
I am using CNNSequenceClassifier from sklearn-sequence-classifiers for sequence prediction. The problem is I have been running into these two errors in a weird kind of way: Tensor embedding_2_input:0, specified in either feed_devices or fetch_devices was not found in the Graph Operation 'init_1' has been marked as not fetchable. The second one happens when I refresh the page and execute the code again (by the way, the whole thing is within a django project) I say weird because my code has two prediction parts. When I run the first one and then the second, the errors do not arise. But when I do the opposite these errors show up. I have searched a lot and there are rare information on solutions people have suggested. And the ones that have been marked helpful are totally different from the structure of my code's prediction. Basically I have no clue what these errors are referring to. Here's what's happening inside the codes (they are functions inside the views.py): from django.http import JsonResponse from django.db.models import Max, Min, Sum, Avg, Q from datetime import timedelta, date import datetime import jdatetime import json import math import numpy as np import operator import shelve import os from … -
Intermittent 500 error when inserting into MySQL from Python Flask App
I keep getting a 500 issue when inserting data into MySql DB. I know when the issue occurs but can't figure out why. When I insert data (e.g. new user) into my DB, I can see it has been inserted correctly from MySql Workbench but about 50% of the time when I call the data thats just been inserted, it returns None After I restart uwsgi (service uwsgi restart) and use the app again, it works as expected until I add some more data then the issue occurs again but only for data inserted after the restart. The app works as expected when running on my local windows machine. Would really appreciate any help on this before my head explodes! This is for a new CentOS 7 Linux server using MySql 8, Python 3.7. I have tried this with 3 different databases with the same result. I have rebooted the server and uwsgi. To recreate, I made testuser@test.com which is correct when getby_email function is called. Basically when the query asks the database for a user with that email, its randomly returns 'None' even though I can see on MySql workbench that the user is in the database. Then when … -
Django: Peer authentication failed for user
I've already a functioning website that use sqlite3 but I prefer to restart my website project with an empty project that immediately use PostgreSQL/PostGIS. At the end of the configuration of settings.py I will make a dump for upload all the sqlite3 tables into the new DB. Nobody models of the old project will modify into this new project. The differece between the old and the new project is only the DBMS. This is settings.py: INSTALLED_APPS = [ ... 'django.contrib.gis', ] ... DATABASES = { 'default': { 'ENGINE': 'django.contrib.gis.db.backends.postgis', 'NAME': 'my_project_name', 'USER': 'db_user', 'PASSWORD': 'password_of_db_user', } } After this I've tried to test the server with python3 manage.py runserver but I see this error message: django.db.utils.OperationalError: FATAL: Peer authentication failed for user "db_user" I'm sure that NAME, USER and PASSWORD are correct, the db is in localhost. I've created, a couple of week ago, another simple project to learn GeoDjango with this same settings and that website run fine. -
ImageField not validating
Why isn't Django's ImageField throwing a validation error here? # field in model image_mobile = ImageField( upload_to='static/images/', blank=True, null=True ) # in test from django.core.files.uploadedfile import SimpleUploadedFile attachment = SimpleUploadedFile("file.mp4", b"file_content", content_type="text/plain") obj.image_mobile = attachment obj.save() self.assertEqual(obj.image_mobile, '') Outputs this: AssertionError: <ImageFieldFile: static/images/file_7wanB5P.mp4> != '' From the documentation: Inherits all attributes and methods from FileField, but also validates that the uploaded object is a valid image. -
GET ERROR 500 (Internal Server Error) AJAX DJANGO
I try to achieve a method that when I click the button, the webpage can show different views(based on which button I click). But after I run the server, I get this: jquery.min.js:4 GET http://127.0.0.1:8000/sheet/?Page_1=Page_1 500 (Internal Server Error) I created button divs and used ajax. So if I click Page_1/Page_2/Page_3, the webpage can show up different content. I initial variables Page_1/2/3 and sent them back to Django. In the Django, I will compare data. If they are matched, it will jump to the desired html file web.html .... <button id="Page_1">customer</div> <button id="Page_2">mobile</div> <button id="Page_3">meeting</div> <script type="text/javascript"> $(document).ready(function(){ var id="Page_1" $("#Page_1").click(function(){ $.ajax({ url:"{% url "sheet" %}", data:{Page_1:id}, success:function(result){$("#vizContainersk").html(result);} }); }); }); .... the rest of ajax are same as above one. view.py .... @api_view(['GET']) def get_tableau_url(request): return render(request, 'web.html') def sheet(request): url ='http://xx.xx.xxx.xx:8000/trusted?username=some_name&target_site=demo' result = requests.post(url, timeout=15) context={} context['token'] = result.text q1 = request.GET.get('Page_1') s1 = "Page_1" q2 = request.GET.get('Page_2') s2 = "Page_2" q3 = request.GET.get('Page_3') s3 = "Page_3" if (q1 == s1): return render(request, 'sheet0.html', context) if (q2 == s2): return render(request, 'sheet1.html', context) if (q3 == s3): return render(request, 'sheet2.html', context) I except to solve Internal Server Error -
os.system(inpsectdb) runtime doesn't not create model
To my problem: I need to create a model during runtime. We create new database and fill them with tables and information. After that we need to create the model for the database. I do that with the following code: os.system("python3 D:/django/alpha/manage_inspectdb.py inspectdb --database realtest > D:/django/alpha/api_manager/schemas/realtest.py") When I run the command in program I get an empty realtest.py file. When I run the command on command line I get the expected result a realtest.py with all the generated classes. I found out that this does work when i run it on my local Computer. As soon as i try to push it in deployment i doesnt work anymore. In deployment i have Apache Server with Python and Django all up-to-date. -
How to hide a button if the user don't have permission?
I'm working as an intern for a company on GeoNode 2.8. I have to hide the Download Layer button if the user is not in the permission list. The previous intern made it in an older version of Geonode by adding a {% get_obj_perms request.user for resource.layer as "perms" %} before the button display function. But when I add it on my version of GeoNode, it didn't change anything and the button still there. {% if resource.storeType != "remoteStore" %} {% get_obj_perms request.user for resource.layer as "layer_perms" %} <li class="list-group-item"> {% if links or links_download %} <button class="btn btn-primary btn-md btn-block" data-toggle="modal" data-target="#download-layer">{% trans "Download Layer" %}</button> {% else %} {% if request.user.is_authenticated %} <button class="btn btn-primary btn-md btn-block" id="request-download">{% trans "Request Download" %}</button> {% endif %} {% endif %} </li> {% endif %} -
What is The Standard Way to Structure Django Rest urls
I have a project in which I have several app: project/app1 project/app2 In those apps exist views for which I want to have basic CRUD. So the usual way for the urls is to use routers. app1/api/views: class BookViewSet(viewsets.ModelViewSet): queryset = Book.objects.all() serializer_class = BookSerializer So far so good. I register a router under this path: project/urls.py But, if I want to add other views under app1, I don't know how to structure the urls. Let's say I want to list reviews about a specific book: class TestAssesment(ListCreateAPIView): def get_queryset(self): queryset = BookReviews.objects.filter( book_id=self.kwargs["pk"]) return queryset serializer_class = BookReviewSerializer The url I'm seeking is: books/<int:id>/reviews/ Where and how should I put this url? Shoud I dismiss the router inside project/urls.py and replace it with path('books/', include('books.api.urls')) and handle all the related urls there? What is the cleanest way to structure URLs in such cases? -
How to style django-allauth Template?
I'm new in Django, so i don't know how to give style to my templates. I had read the Allauth official Docs but i don't understand how to style them? i had downloaded the templates from github and did all the dir settings. and now its working. this is my login template which i have to convert into django allauth template. <div class="container"> <div class="col-sm-10 main-section ml-auto mr-auto"> <div class="card text-center shadow p-0 mb-0"> <div class="card-header"> <ul class=" nav nav-tabs card-header-tabs"> <li class="nav-item ml-auto"> <button type="button" class="close nav-link" aria-label="Close" > <span aria-hidden="true"><a href="index.html">&times;</a></span> </button> </li> </ul> </div> <div class="card-body"> <div class="modal-content"> <form class="col-sm-11 ml-auto mr-auto"> <h1 class="heading ">Login </h1> <div class="form-group"> <input type="email" class="form-control" placeholder="Enter Email"> </div> <div class="form-group"> <input type="password" class="form-control" placeholder="Password"> </div> <button type="submit" class=" btn col-sm-6 ml-auto mr-auto" id="log- icon">Login</button> <div class="col-sm-6 forgot ml-auto mr-auto"> <a href="#">Forgot Password?</a> </div> <div class="col-sm-6 forgot ml-auto mr-auto"> <a href="signup_E.html">Create an Account</a> </div> </form> </div> </div> </div> </div> </div> And the Allauth template look like this , i'm uploading only the direct login form of allauth <p>{% blocktrans %}If you have not created an account yet, then please <a href="{{ signup_url }}">sign up</a> first.{% endblocktrans %}</p> {% endif %} <form class="logi`enter … -
Create input field in django ModelForm through autocomplete select
I have a dynamic DropDownBox in Django ModelForm through autocomplete select2. Selections are coming out properly, but I don't know how to save new choices into the database through autocomplete select2. Help me to solve. My ModelForm Title = forms.ModelChoiceField(queryset=Book1.objects.values_list('Title', flat=True).distinct(), widget=autocomplete.ModelSelect2()) class Meta: model = Book1 fields = [ 'Title'] class Book1Admin(admin.ModelAdmin): form = Book1Form save_as = True -
My images are stored in the Django model but not in my media directory unless if the page gets refreshed. How to solve this issue?
I've created a simple image upload page which allows a user to upload an image from the system. It rejects any extensions other than PNG, JPEG, JPG and SVG. Once successful, the user will get sent to a page which states that the image upload is successful. However, once returned back to the image upload page; when a user uploads again without refreshing the page, the image gets stored into the Django model but not in the media directory. What's the reason for this? I'm using Django 2.2.2 version and am currently new to it. Code: models.py from django.db import models import os from PIL import Image from datetime import date import datetime from .validators import validate_file_extension import base64 def get_directory_path(instance, filename): today = date.today() t = datetime.datetime.now() day, month, year = today.day, today.month, today.year hour, minutes, seconds = t.hour, t.minute, t.second filename = str(day) + str(month) + str(year) + str(hour) + str(minutes) + str(seconds) + '.png' dir = 'media' path = '{0}/{1}'.format(dir, filename) return path class Image(models.Model): image = models.FileField(upload_to = get_directory_path, default = 'media/sample.png', validators=[validate_file_extension]) created_date = models.DateTimeField(auto_now = True) def __str__(self): return str(self.id) @property def image_url(self): with open(self.image.path, "rb") as imageFile: base64.b64encode(imageFile.read()) with open(self.image.path, "wb") as fh: … -
how to set callback and website url for localhost in twitter app
i am getting this problem and how should i add best call back url in twitter app Website URL http://localhost:8000/ http://127.0.0.1:8000/ http://twitter/username/ http://example.com callback url http://localhost:8000/ https://localhost:8000/ http://127.0.0.1:8000/ http://localhost:8000/auth/twitter/callback/ http://twitterusername.com/ http://127.0.0.1/complete/twitter/ http://127.0.0.1/oauth/complete/twitter/ http://127.0.0.1/folder_name/ HTTPError at /social-auth/login/twitter/ 403 Client Error: Forbidden for url: https://api.twitter.com/oauth/request_token -
Django group by only using users_id and get all other fields from model
views.py condition = Q(vendor_id=vendor_id) sum_invoice_qry = Sum('amount', filter=Q(transaction_type=1)) sum_payment_qry = Sum('amount', filter=Q(transaction_type=2)) qs = Transaction.objects.values('users_id').annotate(sum_invoice=sum_invoice_qry).annotate(sum_payment=sum_payment_qry).filter(condition) => I need to group by users_id and all other fields from model, - But, currently it is making this query: SELECT `tbl_transactions`.`users_id`, SUM(CASE WHEN `tbl_transactions`.`transaction_type` = 1 THEN `tbl_transactions`.`amount` ELSE NULL END) AS `sum_invoice`, SUM(CASE WHEN `tbl_transactions`.`transaction_type` = 2 THEN `tbl_transactions`.`amount` ELSE NULL END) AS `sum_payment` FROM `tbl_transactions` WHERE (`tbl_transactions`.`vendor_id` = 3544 AND `tbl_transactions`.`billing_type` = ) GROUP BY `tbl_transactions`.`users_id`, `tbl_transactions`.`date_time`, `tbl_transactions`.`date_added` ORDER BY `tbl_transactions`.`date_time` DESC, `tbl_transactions`.`date_added` DESC => Why the date_time and date_added is appended in group by? how to remove them => How to get all others fields, like vendor_id, amount... from models models.py from django.contrib.auth import get_user_model from django.db import models # Create your models here. class Transaction(models.Model): users = models.ForeignKey(get_user_model(),on_delete=models.CASCADE) vendor_id = models.IntegerField(blank=True) transaction_id = models.CharField(max_length=100,blank=True) #transaction_type = models.CharField(max_length=100,blank=True) TYPE_CHOICES = ((0, 'Select Transaction Type'),(1, 'Invoice'), (2, 'Payment')) transaction_type = models.IntegerField(default=0,blank=True,choices=TYPE_CHOICES) amount = models.DecimalField(max_digits=15,decimal_places=2) out_std_amount = models.DecimalField(max_digits=15,decimal_places=2,blank=True) description = models.TextField(blank=True) attachment = models.ImageField(upload_to="images/transactions/%Y/%m/%d",blank=True) quantity = models.IntegerField(default=0) billing_type = models.CharField(max_length=50,blank=True) date_time = models.DateTimeField(auto_now=False) added_by = models.IntegerField(blank=True) date_added = models.DateTimeField(auto_now_add=True) date_updated = models.DateTimeField(auto_now=True) def save(self, *args, **kwargs): super(Transaction, self).save(*args, **kwargs) class Meta: db_table = 'tbl_transactions' ordering = ['-date_time','-date_added'] def __unicode__(self): return self.transaction_id
