StanisLove

Summary of book "Clean Architecture" by Robert C. Martin

Uncle Bob, the well known author of Clean Code, is coming back to us with a new book called Clean Architecture which wants to take a larger view on how to create software.

Even if Clean Code is one of the major book around OOP and code design (mainly by presenting the SOLID principles), I was not totally impressed by the book.

Clean Architecture leaves me with the same feeling, even if it's pushing the development world to do better, has some good stories and present robust principles to build software.

The book is build around 34 chapters organised in chapters.

StanisLove

# Minikube update script file

minikube delete && \ 
sudo rm -rf /usr/local/bin/minikube && \ 
sudo curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 && \ 
sudo chmod +x minikube && \ 
sudo cp minikube /usr/local/bin/ && \ 
sudo rm minikube && \  
minikube start &&\

StanisLove

# USAGE:
# rails runner rails-models-to-typescript-schema.rb > app/javascript/types/schema.d.ts


Rails.application.eager_load!
models = ActiveRecord::Base.descendants.reject { |i| i.abstract_class? }

belongs_to = true
has_many = true

StanisLove

# Онлайн магазин

Необходимо создать API для онлайн магазина. Для покупки необходимо создать корзину, добавить туда товары и затем купить все товары из корзины. API подразумевает возможности просматривать список всех продуктов, список корзин.  
Ожидается использование GenServer для хранения данных корзин.

## Методы API:

### 1. create_item

StanisLove

import * as React from 'react';
import removeHTMLTags from './removeHTMLTags';

const safetySetInnerHTML = (text?: string) => {
  if (!text) return null;

  const allowedTags = ['div', 'p', 'li', 'ul', 'ol', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6']
    .map((tag) => [`<${tag}>`, `</${tag}>`])
    .flat();

StanisLove

const renderHtml = (blocks) => {
  var html = blocks.map(block => {
    switch (block.type) {
      case 'code':
        return `<pre><code>${ block.data.code }</pre></code>`
      
      /**
       * Original type is 'header' but I renamed the block to follow correct terminology:
       * https://github.com/editor-js/header/issues/21
       */

StanisLove

The Complete Guide to Nested Forms in Phoenix

I recently spent some time dealing with nested forms in Phoenix. Nested forms are great when you want to create multiple database records in a single transaction and associate them with each other. I am new to Phoenix and really struggled to find any resources that helped me with my specific problem. I decided to document what I learned in the process in hopes of helping others that are new to Elixir and Phoenix.

Here is my attempt at a one stop shop to learn everything you will need to know about nested forms. If you would like to view the GitHub repo you can check it out here.

Thanks to Heartbeat and Jose for excellent blog posts on nested forms. Also shoutout to Josh for showing me some examples at Ruby

StanisLove

def create_batch(conn, %{"people" => people_params}) do
  changesets = Enum.map(people_params, fn class ->
    Person.changeset(%Person{}, person)
  end)

  result = changesets
           |> Enum.with_index()
           |> Enum.reduce(Ecto.Multi.new(), fn ({changeset, index}, multi) ->
              Ecto.Multi.insert(multi, Integer.to_string(index), changeset)
           end)

StanisLove

create or replace function create_jsonb_flat_view
    (table_name text, regular_columns text, json_column text)
    returns text language plpgsql as $$
declare
    cols text;
begin
    execute format ($ex$
        select string_agg(format('%2$s->>%%1$L "%%1$s"', key), ', ')
        from (
            select distinct key

StanisLove

threads = Array.new(8) do
  Thread.new do
    while arr.any?
      mutex.synchronize do
      end

      elem = arr.pop
      next if elem.nil?

    end