StanisLove

### Nginx ###
check process nginx with pidfile /opt/nginx/logs/nginx.pid
  start program = "/etc/init.d/nginx start"
  stop program = "/etc/init.d/nginx stop"
  if cpu > 60% for 2 cycles then alert
  if cpu > 80% for 3 cycles then restart
  if memory usage > 80% for 5 cycles then restart
  if failed host 127.0.0.1 port 80 protocol http
    then restart
  if 3 restarts within 5 cycles then alert

StanisLove

#!/usr/bin/env ruby

require 'rubygems'
require 'aws-sdk'

class S3FolderUpload
  attr_reader :folder_path, :total_files, :s3_bucket, :include_folder
  attr_accessor :files

  # Initialize the upload class

StanisLove

SELECT pg_terminate_backend(pg_stat_activity.pid)
FROM pg_stat_activity
WHERE pg_stat_activity.datname = 'db_name'
AND pid <> pg_backend_pid();

StanisLove

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

      elem = arr.pop
      next if elem.nil?

    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

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

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

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

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

# 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