This one

which specific part of that article you don't understand?

Please is it possible to create a new instance of a model every twenty fours to accept data for each day in Django???

how add gmt+1 timezone in celery django

how can i make a button in my form that create new input label?

how can i make a button in my form that create new input label?

new label in the same form? then what is going to do with that label?

new label in the same form? then what is going to do with that label?

there are some charfield labels. and i want the button that create new charfield labels

JavaScript knowledge is mandatory for development using python ans django

JavaScript knowledge is mandatory for development using python ans django

Yes

where is the question mark then?

Sorry

Sorry

the sentence is not in question form, there is no question mark - it doesn't look like a question how will people guess that this is a question? you should apologize to yourself - your question will be ignored

Localhost ?

No in production

How to change null text in choice field django the default is ----------- I want to change this hyphens?

Hi any send me the register and login with password encryption sample code

does anyone has dealt with jquery datatable in the front-end with python? I have a table in the front-end, viewing only 4-7 columns, and I need to build a filter model in the front-end, and the searched-by columns may not be visible to the client. any idea?

guys

I registered my ViewSet how do I know which url end point it uses?

router.register(r'^countries', CountryViewSet, base_name="country") what does the base_name do in the above code?

Hello guys, I have a model class(Profile) connected to User by OneToOneField. In the profile model how can I get the username registered within the default User model? eg: {{ profile.username }} returns nothing in the view

So many questions? Has anyone got the answers to your questions here ... so far?

Formation of a dynamic form. There are checkbox, textarea fields, when they are received, they can be 3 and 5 and 10, etc. How to save them in models?

<body class="container"> <h1 name="name">Наименование: {{lr_value}}</h1> <h2>Модель: {{ num_category1 }}</h2> <div> {% for j in num_category2 %} <h3>{{ j }}:</h3> <input type="checkbox" id="scales" name="scales"> <label for="scales">Норма\отклонение</label> <br> <textarea id="story" name="story" rows="5" cols="33"> </textarea> {% endfor %} <form method="POST" action="update/"> {% csrf_token %} <input type="submit" value="Отправить" > <h1>{{ num_catego }}</h1> </form> </div> <br> </body>

Hello guys, I have a model class(Profile) connected to User by OneToOneField. In the profile model how can I get the username registered within the default User model? eg: {{ profile.username }} returns nothing in the view

Same problem

What is difference between prefetch related and select related ?

Hello guys, I have a model class(Profile) connected to User by OneToOneField. In the profile model how can I get the username registered within the default User model? eg: {{ profile.username }} returns nothing in the view

Created model Profile connected it with User model using OneToOneField(), but when I'm trying to get username or image field which is in my Profile model.. it is showing AttributeError: no such attribute

Hello guys, I have a model class(Profile) connected to User by OneToOneField. In the profile model how can I get the username registered within the default User model? eg: {{ profile.username }} returns nothing in the view

I'm not sure but it looks like Profile is extended model.. username is in default User model which may be user in ur case. So u can try this way.. {{ user.username }}

Can we use elastic search in Django?

Hello guys, I have a model class(Profile) connected to User by OneToOneField. In the profile model how can I get the username registered within the default User model? eg: {{ profile.username }} returns nothing in the view

Try profile.user.username ( I am assuming that the name of One to One field is user. Change it as per your description)

Any body with prefetch and select related

Any body with prefetch and select related

Don't ask meta questions like: "Any user of $x here?" "Anyone used technology $y?" "Hello, I need help on $z!" Just ask directly! The better you are at explaining the problem, the more likely you are to get help. Asking smart questions

Any body with prefetch and select related

What I have understood so far after reading a lot is that: 1. Prefetch is used for ManytoMany field and for reverse foreign key. Like you have one table A which has foreign key to table B. Now if you want to access data from B to A then you can use prefetch related (fetching from previous table) 2. For forward foreign key and one to one field we use select related. It does inner join in SQL. 3. Prefetch related can be used in place of select related but vice versa is not true.

❎ ‎Maxim pardoned ‎Kennedy [933022195] for 2/3: ‎Link to a Telegram group or channel

Try profile.user.username ( I am assuming that the name of One to One field is user. Change it as per your description)

This doesn't work as well. Also the property decorator fails

This doesn't work as well. Also the property decorator fails

BTW, use markdown for @property to hide it from Doragonsureiyā's rage

Any one have the source code of login function with encryption password

Any one have the source code of login function with encryption password

Django already does it for you

What I have understood so far after reading a lot is that: 1. Prefetch is used for ManytoMany field and for reverse foreign key. Like you have one table A which has foreign key to table B. Now if you want to access data from B to A then you can use prefetch related (fetching from previous table) 2. For forward foreign key and one to one field we use select related. It does inner join in SQL. 3. Prefetch related can be used in place of select related but vice versa is not true.

Practically i want to know how it works

hi everyone , i building a state model in django the package am using is django-fsm , seems to be there is no longer support from author , can anyone suggest some alternative approach

Any body with prefetch and select related

Well, most of the time you wanna retrieve data from more than one table. In that case, you need an efficient way to play with more than just one model. Let's say you have a Book model that has a ForeignKey relationship to Author model. You wanna get information about all books and their authors in a single view. Let's say you have n books. You'll get all Book objects with a single DB query via Book.objects.all() queryset. But each time you ask for the author of a book, django makes another DB query to retrieve information about the author of this book. In total, django performs n+1 queries: 1 query to get all the books and n queries to get authors of n books. This is what they call n+1 problem. This is where prefetch_related() and select_related() come into the picture. They have different purposes and they work differently. 1. select_related() simply makes a SQL JOIN for each selected relationship in a model. In simple words, you'll get data from multiple tables within a single query. For the example above, it joins the author table to the book table with book.author_id = author.id condition. Instead of n+1 queries, you'll make 1 complex query to retrieve all the necessary data. select_related() is limited to a single relationship level. This means, it can be used for first-level one-to-one and many-to-one relationships. If you have this kinda relationship: Book -> Author -> User, You cannot get data in User model from Book, because they don't have a direct relationship between them. 2. prefetch_related() os designed for more than 1 level relationship (like Author, Book, User example). Since it's not a direct relationship, you cannot make a SQL JOIN here. What prefetch_related() does is simply doing a separate query for each relationship, but in a single batch. You might be wondering then how it could be different from a usual way, if it makes a separate query for each relationship. For example, if loop through all the books and access to its author, django makes a query at the moment where you ask for it, which kills the performance. On the other hand, a queryset using prefetch_related fetches all the necessary data when you ask for all the books and author will be already there when you ask for them. Since many-to-many relationship is technically combination of 2 foreignkeys, you cannot use select_related() with them. Here what you need is prefetch_related().

Hello everyone! I need help with DateField. How can I change the date format from 'D-M-Y' to 'M-Y'? I tried applying to field SelectDateWidget. I tried to set the date format manually but all these didn't work.

Hello everyone! I need help with DateField. How can I change the date format from 'D-M-Y' to 'M-Y'? I tried applying to field SelectDateWidget. I tried to set the date format manually but all these didn't work.

https://docs.djangoproject.com/en/3.2/ref/forms/fields/#datefield See input_formats

https://docs.djangoproject.com/en/3.2/ref/forms/fields/#datefield See input_formats

Thank you

facing a problem as follows - there are two mysql tables in many to many relationship... each table has is_active flags for soft delete now when we are trying to join these, we are not able to apply a filter on is_active = 1 in both the tables. can anyone help

The code sofar looks like this .. roles = Role.objects.filter(organization_id=request.user.primary_organization.id, active_statusexact='ACTIVE').prefetch_related(Prefetch('permissions',queryset=RolePermission.objects.filter(active_statusexact='ACTIVE')))

Thank you

You're welcome! 😊

Hi, can anyone suggest a good current book on learning django please?

Hi, can anyone suggest a good current book on learning django please?

why not start with the documentation

why not start with the documentation

It's complicated. Clearly structured information on the example of the project, which is explained in simple language, is easier to perceive

Hello everyone! Maybe, somebody can help me. I want to use django-graphql-jwt for authentication in REST requests. How can I do it?

Hello everyone! Maybe, somebody can help me. I want to use django-graphql-jwt for authentication in REST requests. How can I do it?

why do you want to use something related to GraphQL in REST? just use JWT directly in REST, forget about graphql if you're not using it

why do you want to use something related to GraphQL in REST? just use JWT directly in REST, forget about graphql if you're not using it

Oh, sorry, I don't clarified. I use GraphQL requests in all project but I need to add a few REST requests. I don't know how use djang-graphql-jwt for it, because I use this module for my graphQL requests

Hello ,I want to add a channel layer in my django channels for which ,I need redis server ,so is it trustable to use unofficial redis server from GitHub??

How can I use redis server on windows

How can I use redis server on windows

Not a django question.

Oh, sorry, I don't clarified. I use GraphQL requests in all project but I need to add a few REST requests. I don't know how use djang-graphql-jwt for it, because I use this module for my graphQL requests

just use JWT directly in your REST endpoints

Not a django question.

How to use redis for django channels in windows

How to use redis for django channels in windows

yours is a redis problem not a django problem. Windows or Linux you would just configure the cache in settings.py the same way

How to use redis for django channels in windows

Adding the word Django to your Off-Topic question doesn't magically turn it to a Django related question, so move to @PythonOfftopic group and ask there.

I'll be generous and tell you that you can use docker to achieve what you want but that's all i can say here

Can someone tell where to write logic in ApiView? Because I get error: detail:not found https://codeshare.io/ZJpbVV

Can someone tell where to write logic in ApiView? Because I get error: detail:not found https://codeshare.io/ZJpbVV

you must define get, post and other methods that you want to be available and then you need to create urlpatterns for that View

you must define get, post and other methods that you want to be available and then you need to create urlpatterns for that View

did u have a look at code that i sent? it post method and logic put under if serializer.is_valid()... is that right thing to do?

did u have a look at code that i sent? it post method and logic put under if serializer.is_valid()... is that right thing to do?

Well i opened up the link, it didn't have anything in there

okay it worked now

did u have a look at code that i sent? it post method and logic put under if serializer.is_valid()... is that right thing to do?

Looks fine to me except i would have done if not serializer.is_valid(): return Response(serializer.errors)

Looks fine to me except i would have done if not serializer.is_valid(): return Response(serializer.errors)

ok, thanks. Strange, i get an error {"detail": "not found"}

ok, thanks. Strange, i get an error {"detail": "not found"}

could it be from item = get_object_or_404(Product, slug=self.request.data.get('product'))

could it be from item = get_object_or_404(Product, slug=self.request.data.get('product'))

yes, i get None

could it be from item = get_object_or_404(Product, slug=self.request.data.get('product'))

my endpoint - {{host}}/api/showcase/test1/order/add/?product=margarita&quantity=1

yes, i get None

i mean i think that the 404 is being raised by that function call get_object_or_404 but since you said your debug print says "None" im not sure anymore you should double check

i mean i think that the 404 is being raised by that function call get_object_or_404 but since you said your debug print says "None" im not sure anymore you should double check

alright, tnx

i mean i think that the 404 is being raised by that function call get_object_or_404 but since you said your debug print says "None" im not sure anymore you should double check

i changed it to self.request.query_params.get('product') and now have this: The QuerySet value for an exact lookup must be limited to one result using slicing. what is this mean>

i changed it to self.request.query_params.get('product') and now have this: The QuerySet value for an exact lookup must be limited to one result using slicing. what is this mean>

I'm not sure what you changed in the code

Can you update the pastebin

Good evening! I made a multi-language webiste in django and I am deploying it to shared hosting. Is there any way installing gettext using pip. Because I have not root access to install it using sudo command. Thanks in advance for your answers!

Good evening! I made a multi-language webiste in django and I am deploying it to shared hosting. Is there any way installing gettext using pip. Because I have not root access to install it using sudo command. Thanks in advance for your answers!

use pip with the same user that you deploy, probably you need a virtual environment

use pip with the same user that you deploy, probably you need a virtual environment

I have virtual environment. But I read about gettext is not python package so I cant install it using pip.

I have virtual environment. But I read about gettext is not python package so I cant install it using pip.

Actually I did pip install gettext But it shows error. Also there is a python-gettext package on the internet but I don't know how to use it.

how do i display python print to django page?

how do i display python print to django page?

Ugh read about templates

Ugh read about templates

Pardon?