I am making a CRUD of colors with color_name and color_description. While trying to insert the details the error below has be shown: below is the insert and show function that I have tried out model HTML of insert_color HTML of show color I have checked the names assigned and they are matching, so where am I going wrong? Answer
Tag: django
Django csv upload to db works but throws error
I have created an app named customer within a project named Website using django. I have created a csv upload in the admin area which is connected to the Postgres db. However the CSV file is still added to the db but the error screen is displayed. Even more strangely if I a notepad doc as csv containing the data
HTMX websockets extension doesn’t connect to Django channels
I try to connect a Django channels Consumer to a HTMX ext-ws element, but I can’t get a step further. The HTMX.js and the ws.js gets loaded correctly at the client’s browser. If I use the old HTMX-builtin hx-ws method, at least the websocket connects. But I can’t get a message to the HTMX element (I thought the #message div
How to use data from postgresql in django?
I have switched from sqlite to postgresql following Django: What are the best practices to migrate a project from sqlite to PostgreSQL the fourth answer. Here are my updated settings: However, I cannot seem to find/grab any of the data from my database. Here’s some example data from the database: The migration works successfully with my postgres as I have
In Django, how do I get the corresponding key for a value passed in through the url?
Here is my models.py: Here is from my urls.py: Here is the function from views.py: I want to be able to have the url look like this: https://www.mywebsite.com/ballers, but when I try to run it, I get this error: Field ‘show’ expected a number but got ‘ballers’. I know I can fix this by calling the url https://www.mywebsite.com/0, but I
Use Serializer Method Field in another Method field
In my serializer, I have a method field, that I would want to use in another method field. This will be best explained in code: serializers.py models.py So I want users to see the first step of data analysis and then analyze the same data further. Is that possible? Maybe that is something I shouldn’t do? Answer I would use
How to add Two auto-generated field in one model in Django
I am in need to create two auto-generated fields: 1st field is ID and I am taking the position that is equivalent to id or we can say it is also an auto-generated field in the model. here is the code which I am integrating: please help me to solve this. Answer You can override the save method to set
No Django POST data when sent over a form?
I am on a development server (no CSRF protection), sending over login data to Django via a web form (Django: 127.0.0.1:8000). HTML: Django: I’m pretty sure that the POST data is not being transmitted (TypeError: unsupported operand type(s) for +: ‘NoneType’ and ‘str’) in the print statement, but I can’t figure out why. (The HTML is on localhost and the
How to join linked models with foreign key?
I’m coming from Java and new to python / django. So may be my question is silly … I have one class Parent which contains an association with a class Child. Parent refers to its ‘Childs’ through the related name ‘children’. At Run time it works well, but at design time, it isn’t reachable from the declaration of the class
How can I optimze Django Code to only one query request
I have a simple django project which displays previous reservations dates based on id’s. However currently there are 2 requests being made. (N+1 sql requests, where N is the reservation’s count) Do you have any idea how i would be able to optimize this code to only 1 query? This is the model.py file This is the view.py file ->