class Student(models.Model): FRESHMAN = 'FR' SOPHOMORE = 'SO' JUNIOR = 'JR' SENIOR = 'SR' GRADUATE = 'GR' YEAR_IN_SCHOOL_CHOICES = [ (FRESHMAN, 'Freshman'), (SOPHOMORE, 'Sophomore'), (JUNIOR, 'Junior'), (SENIOR, 'Senior'), (GRADUATE, 'Graduate'), ]

I wanted to add a lock mechanism in my project, can someone guide me with it?

anyone? At least hint me out

anyone? At least hint me out

Maybe anyone is here, yes, but they are not obliged to read everyone's message here neither to reply to everyone's message, if someone wants to reply to your message, they will do that, just don't try to draw attention to your message writing "anyone?" every 5 minutes, that will lead you to be warned for SPAM/Flood, just be patient or use Google/DuckDuckGo to research about your question instead of wasting time here waiting for people to do your work. Have a nice day 😊

How to perform in django i.e. if objects instances exists then perform_update else perform_create

Update_or_create

Maybe anyone is here, yes, but they are not obliged to read everyone's message here neither to reply to everyone's message, if someone wants to reply to your message, they will do that, just don't try to draw attention to your message writing "anyone?" every 5 minutes, that will lead you to be warned for SPAM/Flood, just be patient or use Google/DuckDuckGo to research about your question instead of wasting time here waiting for people to do your work. Have a nice day 😊

I understand what you said but fyi I had already researched on Google and YouTube and other platforms but didn't find any relevant information that's why I asked here as you can see I've joined recently joined just to ask this specific question and I wasn't aware about the spam policy here in this group.

I understand what you said but fyi I had already researched on Google and YouTube and other platforms but didn't find any relevant information that's why I asked here as you can see I've joined recently joined just to ask this specific question and I wasn't aware about the spam policy here in this group.

the words "The groups are tidy, and focused on their topic" from the third paragraph of the rules indicate that any messages that are not related to the subject matter are undesirable here

I wanted to add a lock mechanism in my project, can someone guide me with it?

What exactly do you want to lock? Some DB actions or maybe something else?

I wanted to add a locking time and date filed where one cannot access a particular module.for example... I have 2 modules admin and group admin have set a time and date for a poll from 18/2/22 11am to 20/2/22 12pm and didnt want anyone to submit or access the poll after that date or time. Admin can also extend the date and time if wants.

Hello guys😉 How to create all Django apps insert a folder?(Windows 10) I wrote this command ("py manage.py startapp users apps/users") but it doesn't work(

I wanted to add a locking time and date filed where one cannot access a particular module.for example... I have 2 modules admin and group admin have set a time and date for a poll from 18/2/22 11am to 20/2/22 12pm and didnt want anyone to submit or access the poll after that date or time. Admin can also extend the date and time if wants.

That has nothing to do with locking. It's about permissions. You could implement it as a validation for the poll's expiration date.

Hello guys😉 How to create all Django apps insert a folder?(Windows 10) I wrote this command ("py manage.py startapp users apps/users") but it doesn't work(

You should type this first ( django-admin start project <name> ) after this go into the folder an type it

You should type this first ( django-admin start project <name> ) after this go into the folder an type it

that's exactly what I did...

Then you should check that does django installed globally or not

Then you should check that does django installed globally or not

I found the reason, I had to first create the "apps / users" folder and then run the command

i am looking for free vedio course of postgrasql for learning. any one has know some course like that?

Hi there. I published a new article on Towards Data Science; it is a Tutorial on Django, from first steps up to some more advanced topics, such as showing Plotly chart in Django web apps. Any constructive feedback about my text would be much appreciated since I'm kind of new to Django. I would also like to ask if I could post the article link here. I apologize in advance if it is not allowed, I don't mean to disturb the group normal activity in any way.

That has nothing to do with locking. It's about permissions. You could implement it as a validation for the poll's expiration date.

Thanks

Can we retrieve by os module..????

Can we retrieve by os module..????

Please tell me is it possible

If yes then how

Help me

I have 2 DBs. one managed by django(managed=True) and one external DB(managed=False). I need to lookup for object from both the DBs based on the need. Is there a way to know if django manages a particular self.model?

Hello, Is there any django way of calculating a filtered queryset integer fields without doing a for loop. Say i have a field in my model 'post_view' and I'm trying to calculate each 'post_view' in my queryset for analysis stuff..

Hello, Is there any django way of calculating a filtered queryset integer fields without doing a for loop. Say i have a field in my model 'post_view' and I'm trying to calculate each 'post_view' in my queryset for analysis stuff..

Second question... Is there anyway i can get an index of sorted queryset object without having to iterate each of them?

Please post what you've done so far and we can help from there. Screenshots

Hello, Is there any django way of calculating a filtered queryset integer fields without doing a for loop. Say i have a field in my model 'post_view' and I'm trying to calculate each 'post_view' in my queryset for analysis stuff..

What i did was... I created a property function in the model which loop through each post model and return the sum of 'post_view' field.. What I'm trying to figure out is if there's a way i can do this efficiently without having to use a for loop.

Hello guys i have a question How can i create documentation like swagger, but for django channels(websockets)?

neither a project selection group nor a friend finder group - you need @pythonofftopic

Hi! I'm use DRF and I try to do POST on my drf form, from JS. I'm use function getCookie as it written in django documentation. And then I pass csrftoken and body, in my "fetch" function with method POST. But it's working on ALL devices, except IPHONE. WHY???

Hi! I'm use DRF and I try to do POST on my drf form, from JS. I'm use function getCookie as it written in django documentation. And then I pass csrftoken and body, in my "fetch" function with method POST. But it's working on ALL devices, except IPHONE. WHY???

try with axios

Hi! I'm use DRF and I try to do POST on my drf form, from JS. I'm use function getCookie as it written in django documentation. And then I pass csrftoken and body, in my "fetch" function with method POST. But it's working on ALL devices, except IPHONE. WHY???

also it's not django specific question

Hello, Is there any django way of calculating a filtered queryset integer fields without doing a for loop. Say i have a field in my model 'post_view' and I'm trying to calculate each 'post_view' in my queryset for analysis stuff..

I think you need django's aggregation capabilities https://docs.djangoproject.com/en/4.0/topics/db/aggregation/ guess in your case it will be something like Post.objects.filter(<args>).aggregate(views=Sum('post_view'))

Second question... Is there anyway i can get an index of sorted queryset object without having to iterate each of them?

Do you mean like in an array? No. It's because of how relational databases work - they return SETS. The only way is if you are sure that in a queryset you will get only specific number of records. Say we create a log record each hour, then for a day we could use indexes and etc.

What i did was... I created a property function in the model which loop through each post model and return the sum of 'post_view' field.. What I'm trying to figure out is if there's a way i can do this efficiently without having to use a for loop.

Using such properties is a common antipatter I see in many django projects written by unexperienced devs. Also it seems that you actually need Count. Here is an example from the link I provided >>> from django.db.models import Count >>> pubs = Publisher.objects.annotate(num_books=Count('book'))

is there any fields for telephone number in django

is there any fields for telephone number in django

a CharField with a custom validator should be more than enough

Hi how config fluent for get django logs file for use in elasticsearch

Guys, need help. both functions are trying to change the same object. Works only the last one launched. How can i fix it? @transaction.atomic Def foo(pk): Obj=Object.objects.get(pk) Obj.foo += 1 Obj.save() @transaction.atomic Def bar(pk): Obj=Object.objects.get(pk) Obj.bar += 1 Obj.save()

hey guys have you done face recognition project with its own database recommend me.

hey guys have you done face recognition project with its own database recommend me.

Your question is not related to Django. If it's a Python related question go to @Python group, otherwise please move to @PythonOfftopic group and ask there.

Your question is not related to Django. If it's a Python related question go to @Python group, otherwise please move to @PythonOfftopic group and ask there.

ok men! but i have seen some face recognition projects integrated with dajango.

ok men! but i have seen some face recognition projects integrated with dajango.

but this group is for practical questions

How to delete all objects in project ?

How to delete all objects in project ?

Step 1: Open a browser Step 2: Write down https://google.com or https://duck.com and press Enter Step 3: In the search box, write down the same words you asked here Step 4: Read the first results

I try but not working

I try but not working

Read this please: http://catb.org/~esr/faqs/smart-questions.html#intro

Because in my project some foreign key connected to another table

How to delete all objects in project ?

in a project?! In an entire project?

Entire

Because in my project some foreign key connected to another table

For instance, you could connect to your database and drop it drop database <mydatabase>. Alternatively you can truncate it. Google it for your specific DB.

Ok thank you

Hello everyone, I have a question: I want to create two tables in different databases for the login page, the first one will be for all the users of our website and the second table for the other database will be for all the details about the user: is it possible to create two templates and assign each of them to the corresponding database and link them together ?

Hello everyone, I have a question: I want to create two tables in different databases for the login page, the first one will be for all the users of our website and the second table for the other database will be for all the details about the user: is it possible to create two templates and assign each of them to the corresponding database and link them together ?

Yes

https://docs.djangoproject.com/en/4.0/topics/db/multi-db/ that's all you need to know... now you can be happy

just be sure to read the section: "Limitations of multiple databases" and you're all set

https://docs.djangoproject.com/en/4.0/topics/db/multi-db/#cross-database-relations

https://docs.djangoproject.com/en/4.0/topics/db/multi-db/#cross-database-relations

*However, this configuration is not officially supported by Django* this is the response of mine from django doc ..that’s why i ask for other solutions..! Do u think Using queries gonna solve the problem??

*However, this configuration is not officially supported by Django* this is the response of mine from django doc ..that’s why i ask for other solutions..! Do u think Using queries gonna solve the problem??

are you using SQLite?

are you using SQLite?

Mysql

Mysql

with MyISAM or InnoDB? —and why?—

*However, this configuration is not officially supported by Django* this is the response of mine from django doc ..that’s why i ask for other solutions..! Do u think Using queries gonna solve the problem??

however, you have the answer there: > "you may be able to ‘fake’ cross database foreign keys" ¯\_(ツ)_/¯ it doesn't matter if it's not "officially" supported, what matters is that you may be ABLE to do that... so do that

with MyISAM or InnoDB? —and why?—

Cuz i have a lot of tables and a lof of user gonna registered in the account like 100000 ppls and a lot of infos invoicing to much things and a need to the request from database not taking more than 100ms that’s why I’m using mysql

other solution is that before saving/updating data in one DB, you manually check there's the integrity needed on the other DB so your project doesn't break

with MyISAM or InnoDB? —and why?—

MyISAM

Cuz i have a lot of tables and a lof of user gonna registered in the account like 100000 ppls and a lot of infos invoicing to much things and a need to the request from database not taking more than 100ms that’s why I’m using mysql

PostgreSQL is better for that thing... but nevermind ¯\_(ツ)_/¯

other solution is that before saving/updating data in one DB, you manually check there's the integrity needed on the other DB so your project doesn't break

you can write a custom helper function for that, or a middleware, or whatever you want/is more easier for you

PostgreSQL is better for that thing... but nevermind ¯\_(ツ)_/¯

Tht’s why UBER jumps from postgreSQl to mysql

🙏🏻🙏🏻🙏🏻

Required fields don't show up in swagger

Serializers.py class UserSerializer(serializers.ModelSerializer): password2 = serializers.CharField(style={'input_type': 'password'}, write_only=True) class Meta: model = User fields = ['id', 'first_name', 'last_name', 'username', 'email', 'password', 'password2'] extra_kwargs = { 'password': { 'write_only': True, 'required': True } }

Views.py http://linkode.org/#LYbGAVVS1Yow0e7IkFi795

Im using drf-yasg and here is the result: https://ibb.co/PgXrWmC

Required fields don't show up in swagger

#solved https://drf-yasg.readthedocs.io/en/latest/custom_spec.html#the-swagger-auto-schema-decorator

https://www.toptal.com/developers/hastebin/laqunajexu.rb

Please, someone can help me I would like to save A Product in the Model WishList, it didn't work, I don't know if it's the right way

Please, someone can help me I would like to save A Product in the Model WishList, it didn't work, I don't know if it's the right way

You are not performing any action to save it

You just getting the object, according to your code

You are not performing any action to save it

it gave an error like this 'super' object has no attribute 'get_object'

You are not performing any action to save it

how i can do it ?