codesnips

russian-doll

ruby 
class Comment < ApplicationRecord
  belongs_to :post, touch: true
  belongs_to :author, class_name: "User"

  validates :body, presence: true, length: { maximum: 10_000 }

Granular Cache Invalidation with touch: true

rails caching activerecord
by codesnips 4 tabs
ruby 
class ProductsController < ApplicationController
  def index
    @products = Product
      .includes(:category)
      .order(created_at: :desc)
      .page(params[:page])

Fragment caching inside Turbo Frames (fast lists)

rails hotwire turbo
by codesnips 4 tabs
ruby 
module CollectionCacheKey
  extend ActiveSupport::Concern

  def cache_key_for(scope)
    relation = scope.respond_to?(:all) ? scope.all : scope
    model = relation.klass

Deterministic Cache Keys for Collections

rails caching activerecord
by codesnips 3 tabs
ruby 
class DashboardMetrics
  include ActiveModel::Model

  attr_reader :account

  def initialize(account)

Expiring Dashboard Fragment Caches with a Versioned Composite Cache Key in Rails

rails caching fragment-caching
by codesnips 3 tabs
ruby 
class Product < ApplicationRecord
  has_many :reviews, dependent: :destroy

  scope :published, -> { where(published: true) }

  def average_rating

Russian Doll Fragment Caching with Touch Propagation in Rails

rails caching fragment-caching
by codesnips 4 tabs