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Evgenij Legotskoj

EVILEG

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Evgenij LegotskojSept. 5, 2022, 3:45 a.m.

DjangoAnalysis of errors in the development and promotion of a site on Django - Custom tag<cut>

development, Django, Custom

And now some thoughts on the topic of custom tags, and whether they should be introduced at all.

The short answer is NO.

Now let's think about this topic - "Why?" . There is such a well-known Russian-language resource Habr, …

Evgenij LegotskojSept. 2, 2022, 6:06 a.m.

DjangoAnalysis of errors in the development and promotion of a site on Django - Multilingual forms

forms, Мультиязычноть, Django, Translations

With this publication, I would like to start sharing my observations after almost seven years of supporting the EVILEG project. So that every newbie could roughly understand and imagine whether it is worth doing a similar or different functionality or …

Evgenij LegotskojJune 13, 2022, 5:15 a.m.

C++Leet Code Solutions - 003 - Longest Substring Without Repeating Characters

cpp, LeetCode, C++, C++17, string

Solution "Longest Substring Without Repeating Characters" on Leet Code


class Solution {
public:
    int lengthOfLongestSubstring(string s) {
        string candidate_str = "";
        string checking_str = "";
        size_t position = std::string::npos;
        for (auto& ch : s)
        {
            position = checking_str.find(ch);
            if (position …
Evgenij LegotskojJune 13, 2022, 4:13 a.m.

C++Leed Code Solutions - 002 - Add Two Numbers

LeetCode, cpp, C++

Solution "Add Two Numbers" on Leet Code


/**
 * Definition for singly-linked list.
 * struct ListNode {
 *     int val;
 *     ListNode *next;
 *     ListNode() : val(0), next(nullptr) {}
 *     ListNode(int x) : val(x), next(nullptr) {}
 *     ListNode(int x, ListNode …
Evgenij LegotskojJune 13, 2022, 3:58 a.m.

C++Leet Code Solutions - 001 - Two Sum

cpp, LeetCode, C++

Two Sum solution on Leet Code


The simple solution

class Solution {
public:
    vector<int> twoSum(vector<int>& nums, int target) {
        for (int i = 0; i < nums.size(); ++i)
        {
            for (int j = i + 1; j < nums.size(); ++j) …
Evgenij LegotskojJune 1, 2022, 4:30 a.m.

DjangoDjango - Lesson 059. Saving the selected language in user settings

python, language, django, translation

In this article, I would like to show an example of how you can make a link on the site so that the user can switch between languages on the site.

But I will show a more advanced version of …

Evgenij LegotskojApril 18, 2022, 5:39 p.m.

DjangoDjango - Tutorial 058. Database Growth Due to django_session Table

Django, Postgres, garbage collection, Python, PostgreSQL

Lately, I have noticed that the fatal moment is approaching, when the disk space for the site on the hosting will catastrophically cease to be enough. And the database dump becomes incredibly huge, although there are no obvious prerequisites for …

Evgenij LegotskojFeb. 14, 2022, 4:24 a.m.

DjangoDjango Rest Framework - Tutorial 001. Adding Token Authentication

Django Rest Framework, QML, Authentication, Token, drf, Felgo

At the moment I am actively working on an application that will work with the REST API of a Django site. And one of the first steps was to set up user authentication by token, but in order for this …

Evgenij LegotskojFeb. 10, 2022, 4:13 a.m.

DjangoDjango - Lesson 057. Multilanguage support in MarkdownField with auto populate functionality

MarkdownField, markdown, modeltranslation, Django

The article How to write auto populate field functionality described the simplest functionality of the MarkdownField field to support markdown syntax on a site with automatic generation of html content.

I did not immediately show advanced functionality to make it …

Evgenij LegotskojFeb. 9, 2022, 6:11 a.m.

DjangoDjango - Tutorial 056. How to convert image to WEBP format when saving to ImageField

ImageField, Django, WEBPField, webp, Python

WEBP is an image compression format that was introduced by Google in 2010. Its main advantage is its low size without visible loss of quality compared to formats such as JPEG or PNG. Therefore, it is quite logical to use …

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