Radoslav Stankov RStankov

## application_component.rb
class ApplicationComponent < ViewComponent::Base
  private

  def fetch_with_fallback(hash, key, fallback)
    hash.fetch(key) do
      ErrorReporting.capture_exception(%(key not found: "#{key}"))
      fallback
    end
  end


## counter_cache.sql
CREATE OR REPLACE FUNCTION comments_count_update()
RETURNS TRIGGER AS $$
BEGIN
    -- Increase count on insert
    IF (TG_OP = 'INSERT') THEN
        UPDATE posts SET comments_count = comments_count + 1
        WHERE posts.id = NEW.post_id;
        RETURN NEW;
    -- Decrease count on delete
    ELSIF (TG_OP = 'DELETE') THEN

## emergency_kit.md

      
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                RStankov
                / emergency_kit.md
            
            
              Created
              March 7, 2024 19:38
            
              
                ⛑️ Emergency Kit
              
          
    ⛑️ Emergency Kit


  🎥 Video walkthrough of emergency handling
  `[VIDEO IN TOOL LIKE LOOM]`

Tools


GRAFANA


## template_postmortem.md

      
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                RStankov
                / template_postmortem.md
            
            
              Created
              March 7, 2024 17:26
            
              
                Post postmortem template
              
          
    [REPLACE TITLE] Postmortem

Summary:
[TLD of what happened]
Responders:

[who handled the issue]

  
## menu.html
<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <meta name="viewport" content="width=device-width" />
    <title>Menu</title>
    <style>
      .wrapper {
        margin-left: auto;
        margin-right: auto;

## container.tsx
// The most complex part of the modal system
// There are lot of small details heres
// I extracted this from a real project
// Notice: Hooks hide a lot of complexity

import { IModalOpen } from './types';
import { closeModal } from './triggers';
import { useEffect, useMemo, useRef, useState } from 'react';
import { useEventBus } from '../eventBus';
import { InsideModalProvider } from './context';

## eventBus.ts
import * as React from 'react';
import mitt from 'mitt';

interface IEventsMap {
  modalOpen: {
    content: React.ReactNode;
    url?: string;
  };
  modalClose: null;

## controller.rb
class Controller < ActionController::Base
  include DevelopmentLogging if Rails.env.development?
end

## explicit_counter_cache.rb
# frozen_string_literal: true

# Complex counter counter caches
#
# Usage:
#
# In parent model
#   class Post < ApplicationRecord
#     ExplicitCounterCache.define(self, votes_count, -> { votes.active })
#     ExplicitCounterCache.define(self, comments_count, -> { votes.visible })

## association_resolver.rb
# frozen_string_literal: true

# Note(rstankov):
#
#  **Don't use for `connection`s, only for `field` attributes**
#
# Preload associations.
#
# Supports all preload formats from [ActiveRecord::Base.includes](https://api.rubyonrails.org/v5.2.4/classes/ActiveRecord/QueryMethods.html#method-i-includes).
#
	class ApplicationComponent < ViewComponent::Base
	private

	def fetch_with_fallback(hash, key, fallback)
	hash.fetch(key) do
	ErrorReporting.capture_exception(%(key not found: "#{key}"))
	fallback
	end
	end
	CREATE OR REPLACE FUNCTION comments_count_update()
	RETURNS TRIGGER AS $$
	BEGIN
	-- Increase count on insert
	IF (TG_OP = 'INSERT') THEN
	UPDATE posts SET comments_count = comments_count + 1
	WHERE posts.id = NEW.post_id;
	RETURN NEW;
	-- Decrease count on delete
	ELSIF (TG_OP = 'DELETE') THEN
	// The most complex part of the modal system
	// There are lot of small details heres
	// I extracted this from a real project
	// Notice: Hooks hide a lot of complexity

	import { IModalOpen } from './types';
	import { closeModal } from './triggers';
	import { useEffect, useMemo, useRef, useState } from 'react';
	import { useEventBus } from '../eventBus';
	import { InsideModalProvider } from './context';
	import * as React from 'react';
	import mitt from 'mitt';

	interface IEventsMap {
	modalOpen: {
	content: React.ReactNode;
	url?: string;
	};
	modalClose: null;
	class Controller < ActionController::Base
	include DevelopmentLogging if Rails.env.development?
	end
	# frozen_string_literal: true

	# Complex counter counter caches
	#
	# Usage:
	#
	# In parent model
	# class Post < ApplicationRecord
	# ExplicitCounterCache.define(self, votes_count, -> { votes.active })
	# ExplicitCounterCache.define(self, comments_count, -> { votes.visible })
	# frozen_string_literal: true

	# Note(rstankov):
	#
	# Don't use for `connection`s, only for `field` attributes
	#
	# Preload associations.
	#
	# Supports all preload formats from [ActiveRecord::Base.includes](https://api.rubyonrails.org/v5.2.4/classes/ActiveRecord/QueryMethods.html#method-i-includes).
	#