Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Django admin: filter_horizontal with custom search/filter results
I have a simple model with ManyToManyField. class Meeting(models.Model): place = models.CharField() date = models.DateField() persons = models.ManyToManyField(Person) Person model contains basic information about person. class Person(models.Model): login = models.CharField(unique=True) first_name = models.CharField() last_name = models.CharField() def __str__(self): return self.login In my MeetingAdmin(ModelAdmin) class I have filter_horizontal('persons',) that is used for adding multiple people when creating new Meeting object. This works perfectly fine. In the left menu it's showing the list of all persons(filtering by login). As you may know, filter_horizontal contains search box on the top of the left menu. Examples I would also like to be able to filter persons here by their first name and last name. For example, if there is a person with fields (login='mylogin', first_name='John', last_name='Smith') and I type 'Jo' or 'Smi' in search box, this person is displayed as a search result, etc. 'mylogin' since login field is representation of Person model. -
TemplateSyntaxError at /blogapp/author/1/ Could not parse the remainder: '==user.username' from 'request.user==user.username'
what can we use inside {% %} ? Template error: In template C:\Users\SHAFQUET NAGHMI\blog\blogapp\templates\blogapp\authorview.html, error at line 7 Could not parse the remainder: '==user.username' from 'request.user==user.username' 1 : {% include 'blogapp/home.html' %} 2 : {% load static %} 3 : {% block content %} 4 : <link rel="stylesheet" href="{% static 'blogapp/authorview.css' %}"> 5 : <!-- Latest compiled and minified CSS --> 6 : <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css"> 7 : {% if request.user==user.username %} 8 : {{user.username}} 9 : {% endif %} 10 : <h1>{{user.username}}</h1> 11 : <!-- <h1>{{request.user}}</h1>--> 12 : {% for post in a %} 13 : <div > 14 : <div class="container"> 15 : <h2 class="display-1">{{post.title}} </h2> 16 : <p class="display-2">{{post.summary}}</p><br> 17 : <p class="display-2">{{post.Newpost}}</p> -
Make permission methods in Django admin more DRY
I have two ModelAdmins in my admin.py. Each have the exact same permission methods (has_view_permission, has_add_permission, has_change_permission, has_delete_permission, has_module_permission). Is there a way I could make this more DRY? admin.py: class FirstAdmin(admin.ModelAdmin): list_display = ( 'id', 'title', 'author' ) def has_view_permission(self, request, obj=None): if request.user.is_admin: return True def has_add_permission(self, request): if request.user.is_admin: return True def has_change_permission(self, request, obj=None): if request.user.is_admin: return True def has_delete_permission(self, request, obj=None): if request.user.is_admin: return True def has_module_permission(self, request): if request.user.is_admin: return True class SecondAdmin(admin.ModelAdmin): list_display = ( 'id', 'category', ) def has_view_permission(self, request, obj=None): if request.user.is_admin: return True def has_add_permission(self, request): if request.user.is_admin: return True def has_change_permission(self, request, obj=None): if request.user.is_admin: return True def has_delete_permission(self, request, obj=None): if request.user.is_admin: return True def has_module_permission(self,request): if request.user.is_admin: return True -
HELLO GUYS, PLEASE I WANT GET RATE, TERMS AND TITLE PATTERNING TO EACH GIFTCARD TO MY TEMPLATE
#GIFTCARD MODEL class Giftcard(models.Model): name = models.CharField(max_length=100, blank=False) card_image = models.ImageField(upload_to='Giftcard', blank=False) date = models.DateTimeField(auto_now_add=True) publish = models.BooleanField(default=False) #CARD CATIGORY MODEL class CardCategory(models.Model): title = models.CharField(max_length=150, blank=False) rate = models.IntegerField(blank=True) term = models.TextField(blank=False) cardName = models.ForeignKey(Giftcard, on_delete=models.CASCADE) #GIFTCARD VIEW. @login_required(login_url='/Authentication/login') def giftcard(request, cardName): giftcards = Giftcard.objects.all().filter(publish=True) card_category = CardCategory.objects.filter(cardName=cardName) print(card_category) context = { 'giftcards': giftcards, 'card_category': card_category, } return render(request, 'dashboard/giftcard.html', context) #HERE IS MY TEMPLATE <div class="container-fluid bg-light gift__card-modal shadow-lg"> <div class="pop p-5"> <div class="row d-flex align-items-center justify-content-between"> <div class="col-lg-5 col-12 p-0 m-0"> <img class="img-fluid" src="{{ giftcard.card_image.url }}"> <p class="text-muted">Select the card category and the amount.</p> </div> <div class="col-lg-6 col-sm-12 card-details"> <form class="card-form"> <div class="form-group py-2"> <label for="card-category">Card category</label> <input list="category" class="form-control" name="category" id="card_category" placeholder="Select card category"> <datalist id="category"> {% for card_category in card_category %} <option value="{{ card_category.title }}">{{ card_category.title }} </option> {% endfor %} </datalist> </div> <div class="form-group py-2"> <label for="Amount">Amount</label> <div class="d-flex align-items-center amount"> <input type="text" class="form-control" id="amount" placeholder="Please enter amount"> <span class="">#100,000</span> </div> </div> <div class="form-group py-3"> <label for="rate">Current rate - 250</label> </div> <div class="border-none pt-2 pl-3 d-flex justify-content-end"> <button type="button" class="btn process-card-btn">Proceed</button> </div> </form> </div> </div> </div> </div> -
Django (Python) User Permission
I have a moderate knowledge about the django and python. I need a guide to know how to create user permission with GUI control as shown in the attached image. May Thanks Dear, I have a moderate knowledge about the django and python. I need a guide to know how to create user permission with GUI control as shown in the attached image. May Thanks -
Django create singleton class by using the follwing code of field validation
i created a prectice project of school management system. in witch i have three entity student and teacher and principal. i created individual form for taking the informtion all all theis entity. now i am appling field validation on it. so i want to create a singleton class of validation by this i can use one object of this class for validation of all three entity. how i can create this class @login_required(login_url='/') def add_student(request): course = Course.objects.all() session_year = Session_Year.objects.all() if request.method == "POST": profile_pic = request.FILES.get('profile_pic') first_name = request.POST.get('first_name') last_name = request.POST.get('last_name') email = request.POST.get('email') username = request.POST.get('username') password = request.POST.get('password') address = request.POST.get('address') gender = request.POST.get('gender') course_id = request.POST.get('course_id') session_year_id = request.POST.get('session_year_id') #validation for empty first_name num = 0 if not first_name: messages.warning(request,'please enter first name') #return redirect('add_student') num = num+1 # validation for correct enter first_name if not first_name.isalpha() and first_name!="": messages.warning(request,'please correct enter first name') #return redirect('add_student') num = num+1 #validation for empty last_name if not last_name: messages.warning(request,'please enter last name') #return redirect('add_student') num = num+1 # validation for correct enter last_name if not last_name.isalpha(): messages.warning(request,'please correct enter last name') #return redirect('add_student') num = num+1 # validation for unique email if Customuser.objects.filter(email=email).exists(): messages.warning(request,'Email Is Already … -
html multiple form submit with javascript on keypress
I have a django app, which consists of a surface that generically adds text areas and their respective submit buttons (jinja 2 templates). I am trying to submit the text area content with keypress now instead of the button. The issue is as following: submitting the textarea (when filled with user input) by clicking on the button posts form data, namely the content of the text area and a value that is assigned to the submit button, namely an id for the respective text. In Django's views, I am accessing the data through request.POST. Now, I managed to submit the text area content on button press, but logically the id of the key is not accessible since the button is not pressed (and its value not submitted). How would I send the id now? Can I modify the request object with javascript, adding the key-value pair for the id? Or can I submit the value of a hidden submit button with JS when submitting the text area on key press? What is best for security reasons and cross-browser compatibility? Here is my (reduced) code: template for text area <form action="{% url 'myapp:txtarea' %}" method="post"> <textarea name="inputtext" onkeypress="submitTextAreaOnKeyPress('{{idn}}')" class="xyz" cols="30" rows="1" … -
Scrap each product by filtering comments
I am trying to scrape each product page from aliexpress website. I have written this code to get number of comments, number of photos published by the custumer and also the custumer country and put it to a dataframe. But I want to get only the comments published by certain custumer in other words to apply a filter on comments by custumer country , for example get the comments published by the custum whom country is 'US', but really I don't know how to establish that filter : from selenium import webdriver from selenium.webdriver.common.by import By from webdriver_manager.chrome import ChromeDriverManager from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.support import expected_conditions as EC import pandas as pd url = 'https://www.aliexpress.com/item/1005003801507855.html?spm=a2g0o.productlist.0.0.1e951bc72xISfE&algo_pvid=6d3ed61e-f378-43d0-a429-5f6cddf3d6ad&algo_exp_id=6d3ed61e-f378-43d0-a429-5f6cddf3d6ad-8&pdp_ext_f=%7B%22sku_id%22%3A%2212000027213624098%22%7D&pdp_pi=-1%3B40.81%3B-1%3B-1%40salePrice%3BMAD%3Bsearch-mainSearch' driver = webdriver.Chrome(ChromeDriverManager().install()) driver.get(url) wait = WebDriverWait(driver, 10) driver.execute_script("arguments[0].scrollIntoView();", wait.until(EC.visibility_of_element_located((By.CSS_SELECTOR, '.tab-content')))) driver.get(wait.until(EC.visibility_of_element_located((By.CSS_SELECTOR, '#product-evaluation'))).get_attribute('src')) data=[] number_feedbacks = driver.find_element(By.XPATH, '//*[@id="transction-feedback"]/div[1]') number_images = driver.find_element(By.XPATH, '//*[@id="transction-feedback"]//label[1]/em') print(f'number_feedbacks = {number_feedbacks}\nnumber_images = {number_images}') while True: for e in driver.find_elements(By.CSS_SELECTOR, 'div.feedback-item'): try: country = e.find_element(By.CSS_SELECTOR, '.user-country > b').text except: country = None data.append({ 'country':country, }) try: wait.until(EC.visibility_of_element_located((By.CSS_SELECTOR, '#complex-pager a.ui-pagination-next'))).click() except: break pd.DataFrame(data).to_csv('filename.csv',index=False) Any help would be great. Thank you ! -
im getting "variable has been referenced before intialization" error at the last line in django framework
def result(request): check = None try: check = user_answers.objects.get(username=request.session["username"]) except: check = None if check: results,a1,a2,a3,a4,a5 = getPredictions(check) username = request.session["username"] ans = clusterNum.objects.create(username_id=request.session["username"],clusNo = results[0],extroversion=a1,neurotic=a2,agreeable=a3,conscientious=a4,openness=a5) ans.save() # results = getPredictions() return render(request,'result.html',{'name':username,'a1':a1,'a2':a2,'a3':a3,'a4':a4,'a5':a5}) i tried converting them to global but the result is not as expected,it show no values in the webpage -
Select multiple items in Django Admin
Right now filter can be done for all or none i want to make to multiple item selection. In which way I can do that. filter=(2,5,6) -
TypeError at / save() missing 1 required positional argument: 'self'
I cannot update the balance amount, when I try to save the value, it raises that error. models.py, class balance_data(models.Model): user = models.OneToOneField(User, on_delete=models.CASCADE) total_amount = models.FloatField(max_length=15) def __str__(self): return str(self.user) Views.py, def cash_in(request, amount): new_amount = request.user.balance_data.total_amount + amount balance_data.total_amount = new_amount balance_data.save(update_fields=['total_amount']) return HttpResponse(request.user.balance_data.total_amount) How can I solve this? I am expecting to update the amount. -
recognized command (autofile) does not work when I create a file
Hello friends I work through the VScode platform And also works with django, And I have a problem when I create a templates folder and within it I want to create an HTML file And when I type the html command it does not complete it for me automatically as if it does not recognize the file. But if I create a file in another folder in the project he recognizes it very nicely. Here are some pictures to illustrate. Here you can see the path when I create an html file I have the autocomplete. And here when I create a file inside a template folder it does not know to recognize. -
How to send Crypto payments in Django/Python?
I have a website that basically would categorize under gambling. So the users will be able to deposit and withdraw money/crypto. I have created the deposit part where the user is able to deposit money to the website. Now I am stuck with withdraw part. Every tutorial and post I read are about the user to website payment part. I can't find anything that would help me with the website to user process. For deposit I used PayPal and Coinbase APIs. Also I am quite new to this so sorry if my question is ridiculous or badly worded. Could someone please help me with the solution or at least lead me to the right direction? -
Using Django, send a Python Dictionary to a HTML Page and convert it to Javascript arrays in Javascript Script
I have been trying to send a Python Dictionary to a HTML Page and use that dictionary in Javascript to add a Graph on my website, using Django The form takes a Image Upload, and the code is as follows, <div class=" mx-5 font-weight-bold"> Uplaod Image </div> <input class=" " type="file" name="filePath"> <input type="submit" class="btn btn-success" value="Submit"> This image is then sent to views.py where it is processed and a resultant image, as well as a dictionary is generated from that image. And then again, a HTML page is rendered where the dictionary as well as the resultant image is sent in context variable. The code is as follows, def predictImage(request): fileObj = request.FILES['filePath'] fs = FileSystemStorage() filePathName = fs.save(fileObj.name, fileObj) filePathName = fs.url(filePathName) testimage = '.'+filePathName img_result, resultant_array, total_objects = detect_image(testimage) cv2.imwrite("media/results/" + fileObj.name, img=img_result) context = {'filePathName':"media/results/"+fileObj.name, 'predictedLabel': dict(resultant_array), 'total_objects': total_objects} #context = {} return render(request, 'index.html', context) Now, I want to convert the Dictionary items and keys into two different Javascript arrays, which are then to be used to plot a Graph on the HTML page. The template code of the Javascript is as follows, <script> // const value = JSON.parse(document.getElementById('data_values').textContent); // alert(value); var xArray = []; … -
Why running curl command using parallel needs to timeout?
I have set up daphne server with my django application and I wanted to use curl command to send parallel requests to the API that I have created. This is the command that I am using in terminal. seq 10 | parallel -j 5 --joblog pandu.log curl --connect-timeout 2 -v -F "FILE=@PATH_TO_FILE" http://127.0.0.1:8000/<wxy>/<xyz> So, I started the daphne server in one terminal and ran the curl command in another terminal. This is the view that I have created for handling API requests. @csrf_exempt def inputView(request): file = request.FILES['FILE'] call_print_primers(file) return HttpResponse("well I have recieved the file.") This is the output I am getting when I ran the curl command. Trying 127.0.0.1:8000... % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0* Connected to 127.0.0.1 (127.0.0.1) port 8000 (#0) > POST /<wxy>/<xyz> HTTP/1.1 > Host: 127.0.0.1:8000 > User-Agent: curl/7.82.0 > Accept: */* > Content-Length: 2828 > Content-Type: multipart/form-data; boundary=------------------------4e8f33ef7353b32d > } [2828 bytes data] * We are completely uploaded and fine * Mark bundle as not supporting multiuse < HTTP/1.1 200 OK < Content-Type: text/html; charset=utf-8 < X-Frame-Options: DENY < Content-Length: … -
Category and subcategory for django-filter
I want to build a filter for category and subcategory. The filter works enough good, but I don't know how to build left space for children (subcategory). Also I don't know how to build by link. For example, I click a category "Nature" and this category contains different subcategory. In short, I have two question: How to build space for children (subcategory)? how to present categories and subcategories by link? I will be happy of any answer. My code which I tried to use Django-MPTT. But I have error when I use "tree info" and "recursetree" - "'BoundWidget' object has no attribute '_mptt_meta'" template.html <form method="get" class="d-flex flex-column"> {% for su,structure in filter.form.subject|tree_info %} {% if structure.new_level %}<ul> <li>{% else %}</li> <li>{% endif %} {{ su }} {% for level in structure.closed_levels %}</li> </ul>{% endfor %} {% endfor %} OR {% recursetree filter.form.subject %} <li> {{ node }} {% if not node.is_leaf_node %} <ul class="children"> {{ children }} </ul> {% endif %} </li> {% endrecursetree %} <button class="btn-primary mt-2" type="submit">Search</button> </form> models.py class Book(models.Model): title = models.CharField(max_length=255, db_index=True) author = models.ForeignKey( "users.CustomUser", on_delete=models.SET_NULL, null=True, db_index=True ) subject = TreeManyToManyField("Subject") class Subject(MPTTModel): name = models.CharField( max_length=100, unique=True, verbose_name=_("category name"), help_text=_("format: required, … -
Manage multiple accounts in different companies with django
I'm learning and working with django less than a year ago. Now I have to develop a site managing multiple users separated by many different companies. I've recently found django-organizations package which seems suitable for this application, I have read the complete documentation in readthedocs, but I can't find simple working example apps to start trying, and the activity on communities like stackoverflow on this subject seems to have decayed two years ago. Please can anybody tell me if django-organizations is an updated package, compatible with last python and django versions, and provide a source of simple “Hello World”-like examples. Or, by the other hand, please suggest me the best way/library to manage signup, login, permissions, etc,in a multiple users – multiple company Django web application. Thanks in advance. -
Loading an interactive Plotly graph at a click of a button in Django
I am working on a stock screener project using Django, Pandas and Plotly. One of the pages is the user's watchlist where certain stats get displayed for each stock (one HTML table row per stock). This HTML table gets generated in the "watchlist" view by converting a Pandas DataFrame into html using the "to_html" method (with escape=False). Each row of the HTML table has a "View graph" button which opens an interactive Plotly graph for the relevant stock. The graph is generated based on the results of the calculations made in the "watchlist" view, and is represented by an html string that gets sent to the "watchlist" template as part of the context. At the moment I am loading all the stock graphs below the HTML table each time the "watchlist" page gets loaded, but initially the graphs remain hidden with css. Each graph has an id in the dataset that allows me to "unhide" it with JavaScript when someone clicks the matching button with the same id in the table. However, loading all the graphs at once when the "watchlist" page is being loaded takes a lot of time, and I am trying to think of for a solution … -
Cannot set user.is_active to false
I have a custom user model and I am trying to deactive the user but it is not saving. There are also no error messages. My model: class User(AbstractUser): # ... just some additional attributes u = User.objects.get(email="some@email.de") u.is_active = False u.save() u.refresh_from_db() u.is_active # Still returns True but should be False -
django's urlize changing text color of entire string containing url substring
I am loading a long text from a database into a Django template. This string contains a url https://yyyyyy as part of the text. I use django's urlize in order to display the url as actual links, however adding urlize is causing the entire text including the link to change color to blue. Removing the urlize leaves the text as black. I only want the text to be black. How can I stop this color from changing to blue while using urlize? Here is my implementation : <p style="font-size: 15px; color: black" class="tm-pt-30"> {{ value.description | safe | urlize }} </p> The class tm-pt-30 is only responsible for padding. -
setUpTestData and setUp TestCase methods in Django
Can anyone explain me the differences between setUpTestData and setUp TestCase methods in Django? Documentation says. *The class-level atomic block described above allows the creation of initial data at the class level, once for the whole TestCase. This technique allows for faster tests as compared to using setUp(). Be careful not to modify any objects created in setUpTestData() in your test methods. Modifications to in-memory objects from setup work done at the class level will persist between test methods. If you do need to modify them, you could reload them in the setUp() method with refresh_from_db() * And a piece of code... from django.test import TestCase class MyTests(TestCase): @classmethod def setUpTestData(cls): # Set up data for the whole TestCase cls.foo = Foo.objects.create(bar="Test") def test1(self): # Some test -
Acces AJAX data as form data from a dictionary in Django
I am beginner in Django. I am trying to save a form data through AJAX. my code is $("#form").submit(function (e) { e.preventDefault(); var serializedData = $(this).serialize(); value = "user1"; $.ajax({ type: 'POST', url: "{% url 'create-form' %}", data: { "serializedData":serializedData, "value":value, 'csrfmiddlewaretoken': '{{ csrf_token }}', }, success: function (response) { console.log("response", response); /*window.location.replace("https://www.youtube.com/"); */ }, error: function (response) { console.log("error:", response.responseJSON.error); } }) }) And i am trying to accept data in views like this... I used class based view. I added only needed part of views.py code. def post(self, *args, **kwargs): if self.request.is_ajax and self.request.method == "POST" : form = self.form_class(self.request.POST) val = self.request.POST.get("value") if val == "user1" : if form.is_valid(): print("form is valid ") return JsonResponse({"Sucess": True}, status=200) else: print("form is not valid ") return JsonResponse({"error": form.errors} , status=400) .. My problem is when i used to save form = self.form_class(self.request.POST).. It access all values that i sended through AJAX. I want only save serialized data in form. I want to save it as form data because i want to work form with is_valid. -
TypeError: a coroutine was expected, got None
class Test(): def send(self,dela,i): time.sleep(dela) print("process",i) return async def proc(self,dela): task=list() for i in range(5): task.append(asyncio.create_task(self.send(3,i))) res = await asyncio.gather(*task) print(res) return def call(self): asyncio.run(self.proc(3)) return "123" obj=Test() obj.call() I want to run the send method in a for loop concurrently and dont want to wait for each iteration to be completed ,but in the end gather the tasks. -
How to open the file on internet and check the size
I want to open the url such as https://example.com/test.jpg and check the size of image. My idea is using subprocess with curl? However,I suspect.. it looks not good Is there any practice for this purpose? -
Weird 5 second halts for Django on Kubernetes
We have a K8 cluster to host some of our services. These services talk with each other to exchange data over HTTPS APIs. Sometimes we have seen that the execution of services halts for 5 seconds and then continues. We experience high latency during this issue and found that API calls are stalled for 5 seconds through APM traces. I have attached screenshot of one such sample. These services are running Django with gunicorn, containerised in Ubuntu images. What could be the reason of such issues? Is this related to name resolution or lookup? This even K8 related or something else totally? How can we proceed to debug this? If any additional information is required please let me know. Thank you.
