CodeSnips

javascript

export const initialCart = { items: {} };

export function cartReducer(state, action) {
  switch (action.type) {
    case 'ADD_ITEM': {
      const { product, qty = 1 } = action;

Persist and Hydrate a Shopping Cart with useReducer and localStorage

react hooks usereducer

by codesnips 3 tabs

ruby

require 'sinatra/base'
require_relative 'cart'
require_relative 'cart_helpers'

class StoreApp < Sinatra::Base
  enable :sessions

Session-Backed Shopping Cart with Sinatra Helpers and a Cart Value Object

sinatra sessions shopping-cart

by codesnips 3 tabs

ruby

class Cart < ApplicationRecord
  belongs_to :user, optional: true
  has_many :cart_items, dependent: :destroy

  scope :for_session, ->(token) { where(session_token: token) }
  scope :active, -> { where(merged_at: nil) }

Merge a Guest Cart Into a User's Cart on Login With a Rails Service Object

rails service-object devise

by codesnips 3 tabs