I have class Team, which means a group of users. And the relation with User is One-to-Many. But Team may consist of 2 and N members. I think to write manually is not our way, because it depends on count of people which is always variable. How can I do it more elegant and rational? I mean to connect count
Tag: django
Date filter binned data
I have a model in django that contains a start and end date for a financial year and a value for demand volume. I would like to filter this data on a given date range that may not coincide with the date ranges of the data, taking a proportion of the demand from each data point that may fall somewhere
How to display multiple django database models in a flex box row?
So just to give some information, I know how flexbox works and sorta know how django works and have displayed django database models on a page before already, using a loop. The issue I’ve encountered is I want to have multiple (three) of these models on a row kinda like if I used a flex box with three divs inside
How can I use map operator with for loop?
I have a function that returns a list of the total counts. I want to use the map but don’t know how I can use it. Here is my function: I want to use this with the map. Answer I don’t think it’s neccessary. you are just constantly adding terms, so it’s just a sum and it doesn’t require to
Upload PDF File via Django Admin, Users Download from Link on Template
I’m trying to allow users to download a PDF file that I’ve previously uploaded to the MEDIA_ROOT folder via the admin console. I’ve emulated the answer in this post, however it’s incomplete and I can’t figure out how to fix this. Hoping someone can spot my issue in the code below. settings.py models.py admin.py views.py template.html When I hover over
Django 4.x – Conditional order_by of a QuerySet
The Objective The objective is to conditionally order a QuerySet by one of three different date fields in the view based on another field in the model. Since conditional ordering cannot be accomplished with Class Meta I am exploring accomplishing this objective in the view. Here is the relevant excerpt from models.py: The relevant fields in the model are: reading_progress
Django search returning Exception Value: object of type ‘method’ has no len()
Pretty new to Django Rest Framework and I’m not quite sure how to debug this error at the moment. When I set a breakpoint in the view search view. I see all my products in results Pagination is set in settings.py Search view Products view Products model Below is the full trace of my error Answer You are missing ()
Django is_active field is not changing
I’m using django 4.0 when i change the is_active to False from django admin, it doesn’t make any changes to the object, I have override the save method in models. models.py admin.py Can anyone advise ? The problem started when i added the save() in models.py Answer The .save() method should always call the super method, regardless whether pk is
Python returning false on checking if a string exists in list even when it does
I imported a model(named Feature) and set it to a list in Django upon calling the 5th element print(posts[5]) this displays apple in shell which is the 5th object however on checking it with a if condition it returns false and it prints no .. why is this happening even tho apple exists in the list Answer ‘apple’ is a
Querying a Django model and comparing its fields for similarities or near duplicates
I have a model that records changes to other models in my database. I would like to query for changes that only add a newline character — n. My changes model looks like this: Essentially, I want to find instances of Change where the difference between a value for a key in old_fields and new_fields is n. Here’s what new_fields