I have a cached_property in a model in Django: @cached_property def is_active_and_valid(self): # implementation here (takes time to calculate / query the database). Now, in some cases I need to reset the value, which is done by deleting the property. Which code is better?: if ("is_active_and...

foreach($request->file() as $key => $files) { foreach ($files as $image) { if ($key == 'media_files') { $course->media()->create(['filename' => fileUpload($image, 'Course'), 'filetype' => 'pdf']); } elseif ($key == 'doc_files') { $document->media()->create(['filename' =>...

I tried and made a program using my beginner knowledge of C to split a string into multiple sub strings. I just wondered how languages like Python and Javascript implemented the split() function. Thus, I gave it a try. It works and gives the desired output. Since I'm a beginner, I'd be really hap...

Here is the repository with the project I know that ObservableCollection is not thread safe and I think that blocking the thread where the original collection is, copying it and applying filtering or sorting to the entire collection for each operation is too expensive that's why I'm creating a vi...

I have a constant or a variable that does not change while the code being discussed runs. The variable is of an enum type and I want to handle each case of the variable taking any value of the enum. I can make sure that I didn't forget about any value the variable can take at runtime as follows: ...

I have written a library for interacting with an API, however the requests seem to stop occasionally, requiring a reboot. The API has many endpoints, each of which has their own ratelimit. Many of the endpoints are dynamic endpoints which are unknown before and can change during runtime. I tried ...

I am aware there are several ways to deal with shell-executions in Python but I haven't really found the right one for me as it includes the following structure: command [--maincommand.subcommand value] I want to create a backup of a collection from my ArangoDB, using: arangodump --server.endpo...

I have recently started coding in Python and this is my first proper project. The user enters an RNA sequence and the program converts the code into the corresponding amino acid sequence. The user can then choose what kind of a mutation they want to introduce and where. The program will then outp...

I've written a few years ago an Unicode General Category validator. Its repository contains a data optimizer (optimizes the file UnicodeData.txt from unicode.org into a binary) and a small library for use in different languages (JavaScript (NodeJS) and ActionScript). This library's purpose is mos...

Created a linked-list based queue and stack. I was required to use my Dlist implementation when coding the queue and stack. /* * Linkedlist.h * * Created on: Jul 12, 2022 * Author: nick */ #ifndef LINKEDLIST_H_ #define LINKEDLIST_H_ #include <cstdlib> #include <iostream> using name...

I wrote this script for gaining experience, this script takes in a website link (NSFW) and download the video on that site. It uses regular expressions to parse the website source code to extract urls for downloading. I'd appreciate it if anyone could take a look and told me the all thing I did w...

A c# format provider that formats a double into a string using engineering notation rules. If the value is outside of the defined notation symbols it will default to using scientific notation. I wrote this code to better handle a mess of if else statements that previously handled the engineering ...

def method_1(target, culling): for x in culling: target.remove(x) if x in target else None def method_2(target, culling): for x in culling: if x in target: target.remove(x) def method_3(target, culling): _ = [target.remove(ele) for ele in culling if ele...

I have completed a project I was working on using the methods I know how, but it is very inefficient. I am a beginner trying to figure out how I can improve my work by using software solutions. I have a large dataset and I put it into smaller dataframes (grouped by part numbers) which I will loop...

I have come up with a quick and simple IoC container to enable minimal dependency injection support in one of my Java projects. The container creates services with a transient lifetime, meaning, a new instance of the service will be created each time they are requested from the container. Service...

The following class is used in an application to record internet radio streams*. These streams consist of big chunks of audio data with smaller chunks of metadata between them. By monitoring the metadata, one can determine not only what song is playing at the moment but also when the song changes...

I would do this in SQL using string_agg but the server is SQL Server 2012 and beyond my control. So I'm trying a python approach. I have a dataframe of shape [20225 rows x 7 columns], and there a bit of transformation required. There are sometimes duplicate rows, but only in one column. So what I...

; make-hash constructs a hash-table ; ; (hash-put! table key value) adds a new entry to table, with key ; paired with value ; ; (hash-get table key) looks up the value for key in the table. ; It returns the symbol 'none if the key is not in the table. (define (make-hash) (make-hash-table equal?)...