n3bulous

# Shared by Martin Streicher in the Rails Performance Slack
# https://railsperf.slack.com/archives/C0RUUGY6R/p1702565130357359
#
config.lograge.enabled        = true # see lograge section below...
config.lograge.formatter      = Lograge::Formatters::Logstash.new
config.log_formatter          = ::NewRelic::Agent::Logging::DecoratingFormatter.new

config.lograge.custom_options =
  lambda do |event|
    payload = event.payload

fractaledmind

# /app/models/concerns/has_many_attached.rb
module HasManyAttached
  extend ActiveSupport::Concern

  class_methods do
    def has_many_attached(name, dependent: :purge_later, service: nil, strict_loading: false, **options)
      super(name, dependent: :purge_later, service: nil, strict_loading: false)
      
      if options[:file_types].any?
        validate "validate_#{name}_file_types".to_sym

zakariaf

Rails 7 new features. Before and After

• Add ComparisonValidator
• PostgreSQL generated columns
• PostgreSQL custom enum types
• Add tracking of belongs_to association
• association_previously_changed? method
• Add invert_where method
• Add associated method
• Add missing method
• Active Record Encryption

ArturT

# This is example how to rescue from exception ActionDispatch::Http::MimeNegotiation::InvalidType
# and show nice JSON error in your API
module API
  class BaseController < ActionController::API
    def process_action(*args)
      super
    rescue ActionDispatch::Http::MimeNegotiation::InvalidType => exception
      # set valid Content-Type to be able to call render method below
      request.headers['Content-Type'] = 'application/json'
      render status: 400, json: { errors: [exception.message] }

JamesYang76

Time zones

There are trhee diffrent time zones in rails

• System - The server time zone
• Application - Rails application use own time zone
• Database - Default is UTC, but do not change it

Cautions

• config.time_zone should be set when an app dose not support multiple time zones
• Do not use Date/Time API using system time zone
• Date could be incorrect by being converted from datetime or time to date

jiparis

Two approaches to interfaces in Ruby:

First aproach

Using inheritance in a cleaner way. It allows abstract classes, but needs a custom inheritance chain and only supports 1 interface.

module Interface
  attr_accessor :is_abstract
  
  def abstract

bambooom

const fs = require('fs');
const puppeteer = require('puppeteer');

const GIFEncoder = require('gifencoder');
const PNG = require('png-js');

function decode(png) {
  return new Promise(r => {png.decode(pixels => r(pixels))});
}

adamwathan

<snippet>
    <content><![CDATA[
<template>
  ${0}
</template>

<script>
  export default {
    props: [${1}],
    data() {

pixeltrix

class AddTimestampsEverywhere < ActiveRecord::Migration[5.1]
  def change
    now = Time.current

    %i[
      candidates
      evaluations
      interviewers
      questions
      responses

mjason

FROM ubuntu:16.04

RUN apt-get update
RUN apt-get install -y git wget curl build-essential
RUN wget https://packages.erlang-solutions.com/erlang-solutions_1.0_all.deb && dpkg -i erlang-solutions_1.0_all.deb
RUN apt-get update
RUN apt-get install erlang -y
RUN apt-get install -y elixir

RUN curl -sL https://deb.nodesource.com/setup_6.x | bash -