Rails(TM) AntiPatterns identifies these widespread Rails code and design problems, explains why they're bad and why they happen--and shows exactly what to do instead.The book is organized into concise, modular chapters--each outlines a single common AntiPattern and offers detailed, cookbook-style code solutions that were previously difficult or impossible to find. Leading Rails developers Chad Pytel and Tammer Saleh also offer specific guidance for refactoring existing bad code or design to reflect sound object-oriented principles and established Rails best practices. With their help, developers, architects, and testers can dramatically improve new and existing applications, avoid future problems, and establish superior Rails coding standards throughout their organizations.This book will help you understand, avoid, and solve problems withModel layer code, from general object-oriented programming violations to complex SQL and excessive redundancy Domain modeling, including schema and database issues such as normalization and serialization View layer tools and conventions Controller-layer code, including RESTful code Service-related APIs, including timeouts, exceptions, backgrounding, and response codes Third-party code, including plug-ins and gems Testing, from test suites to test-driven development processes Scaling and deployment Database issues, including migrations and validations System design for "graceful degradation" in the real world

    Are You Ready To Learn Python Easily? Learning Python Programming in 7 days is possible, although it might not look like it

    The twelve-factor app is a methodology for building software-as-a-service apps that: - Use declarative formats for setup automation, to minimize time and cost for new developers joining the project; - Have a clean contract with the underlying operating system, offering maximum portability between execution environments; - Are suitable for deployment on modern cloud platforms, obviating the need for servers and systems administration; - Minimize divergence between development and production, enabling continuous deployment for maximum agility; - And can scale up without significant changes to tooling, architecture, or development practices.The twelve-factor methodology can be applied to apps written in any programming language, and which use any combination of backing services (database, queue, memory cache, etc).

    Instead you'll be able to absorb the most important content and begin applying it immediately after just one day!

    You may have tried and failed in the past to make running stick, but never the less you are determined to master it. You may tell yourself that “running is hard”, or “I’m just not a runner”, but the truth is that anybody can learn to run if they have the right approach. You will likely have many questions; “how do I build up my running distance?”, “how do I stay motivated to run?”, “how do I warm up and cool down?”. All of these and more are covered off within the pages of this book along with a step by step guide to building up your running to 60 minutes. There is more to learning how to run than just going out and seeing how far you can go three days a week. Some people will undoubtedly have success with this method, but for most beginner runners it takes a little more guidance and support to truly master the art of running. More and more beginners are deciding to take their first steps and learn how to run. Races are popping up all over the place geared towards beginner runners and it remains one of the most accessible sports around. Learning how to run should be a fun and rewarding experience in itself, not just a means to achieve a goal. Beginner’s Luck is a complete program that teaches you everything you need to build your confidence as a runner. The program itself removes the pressure of having to stick rigidly to a set rate of progress, and instead allows you to progress at your own pace. If you are a beginner runner who would like to learn how to run for up to an hour AND surprise yourself as to how easy it really is, get Beginner’s Luck and start out on your journey today.

    So are we on the edge of an AI-pocalypse, with super-intelligent devices superseding humanity, as predicted by Stephen Hawking? Or will this herald a kind of Utopia, with machines doing a far better job at complex tasks than us? You might not realise it, but you interact with AIs every day. They route your phone calls, approve your credit card transactions and help your doctor interpret results. Driverless cars will soon be on the roads with a decision-making computer in charge. But how do machines actually think and learn? In Machines That Think, AI experts and New Scientist explore how artificial ingence helps us understand human intelligence, machines that compose music and write stories - and ask if AI is really a threat.--

    Xamarin.Forms lets you write shared user-interface code in C# and XAML that maps to native controls on these three platforms.

    Nihilist, grille, U. S. Army, key-phrase, multiple-alphabet, Gronsfeld, Porta, Beaufort, periodic ciphers, and more. Simple and advanced methods. 166 specimens to solve — with solutions.

     Approaching or beginning retirement is a milestone event. For most of our lives retirement feels like it’s on the distant horizon, something to think about tomorrow rather than today. When the day finally does arrive, for many it can feel a little daunting and overwhelming – how should one spend all this new found free time? Olivia Greenwell has the answers, with friendly advice on: How to navigate your way through the questions you may have New opportunities that could present themselves in retirement How to find further information on the exciting opportunities presented As you experience the wonderful peace and contentment of retirement, this book will help you discover what makes you happy, and how to enjoy your life to the fullest. What are you waiting for? Start living the retirement you always dreamt of, by uncovering all the tools you need today!

    Now you can relieve your worst IBS symptoms by adopting a low FODMAP diet. FODMAPs are simple carbohydrates that can be the hidden culprits behind digestive disorders. The Low FODMAP 28-Day Plan, from New York Times and Amazon best-selling publisher Rockridge Press, is a straightforward 4-week plan for removing FODMAPs from your diet and banishing digestive pain forever. With easy guidelines and simple recipes, you’ll learn how to identify and avoid FODMAP foods, and make healthy and delicious FODMAP free meals in your own kitchen. With The Low FODMAP 28-Day Plan you will soothe your digestive system and make it easy to enjoy meals again, with:•105 recipes for delicious, nutritious low FODMAP dishes including Huevos Rancheros, Maple-Soy Glazed Salmon, Butterscotch Pudding, and Spiced Popcorn •A “symptom tracker” so you can log what you’re eating and how it affects your symptoms •An easy-to-follow quickstart guide to help you begin a low FODMAP diet •Comprehensive lists of foods to enjoy or avoid based on their FODMAP content, •10 tips for sticking to a low FODMAP diet when dining out

    Whether you want to build an eBay business from scratch or just want to make sure you're up on eBay's policy changes and taking advantage of new automation tools, this guide will have you selling successfully on eBay faster than you can say, "going...going..."Starting an eBay Business For Dummies 2nd Edition gets you organized and in virtual business fast with step-by-step guidance on: Setting up basic auctions Pricing items or setting minimums strategically Using the About Me page to begin creating a professional identity Finding sources of merchandise (once you exhaust your basement, attic, and relatives) Managing your business with online auction management services and software, including a list of 16 popular sites with their prices Writing tempting descriptions and taking good photographs of merchandise Selecting payment systems (and why shipping C.O.D. is a no-no) Handling inventory and keeping records Written by Marsha Collier, author of eBay For Dummies and eBay Bargain Shopping For Dummies, an eBay PowerSeller, columnist, and teacher at eBay University, this book is packed with time-saving, money-saving tips plus secret eBay hints to help you compete with the pros from the get go. It gives you inside information on:eBay motors, real estate, and other unusual areas Dutch auctions, reserve price auctions, and private auctions Using an eBay fee calculator to check your final value fees Shipping and insuring merchandise efficiently and economically Printing shipping labels and postage Complete with a glossary and index, Starting an eBay Business For Dummies 2nd Edition is just what you need to get started selling on eBay, to graduate from occasional seller to PowerSeller, or to become a genuine eBay entrepreneur like the ten whose success stories are featured in this book!

    With rich illustrations complementing secrets culled from experts, this resource gives participants with basic knowledge new skills for enhancing their experience and provides a visual montage of the different kinds of spots hobbyists can expect to find in the field. Additionally, the dozens of interviews from dedicated geocachers exhibit how the pursuit of hidden treasures has helped people heal frayed marriages and establish new friendships—and even saved lives.

    If programming intrigues you (for whatever reason), Beginning Programming All-In-One Desk Reference For Dummies is like having a starter programming library all in one handy, if hefty, book.In this practical guide, you'll find out about algorithms, best practices, compiling, debugging your programs, and much more. The concepts are illustrated in several different programming languages, so you'll get a feel for the variety of languages and the needs they fill.Inside you'll discover seven minibooks:Getting Started: From learning methods for writing programs to becoming familiar with types of programming languages, you'll lay the foundation for your programming adventure with this minibook. Programming Basics: Here you'll dive into how programs work, variables, data types, branching, looping, subprograms, objects, and more. Data Structures: From structures, arrays, sets, linked lists, and collections, to stacks, queues, graphs, and trees, you'll dig deeply into the data. Algorithms: This minibook shows you how to sort and search algorithms, how to use string searching, and gets into data compression and encryption. Web Programming: Learn everything you need to know about coding for the web: HyperText. Markup Language (better known simply as HTML), CSS, JavaScript, PHP, and Ruby. Programming Language Syntax: Introduces you to the syntax of various languages - C, C++, Java, C#, Perl, Python, Pascal, Delphi, Visual Basic, REALbasic - so you know when to use which one. Applications: This is the fun part where you put your newly developed programming skills to work in practical ways. Additionally, Beginning Programming All-In-One Desk Reference For Dummies shows you how to decide what you want your program to do, turn your instructions into "machine language" that the computer understands, use programming best practices, explore the "how" and "why" of data structuring, and more. And you'll get a look into various applications like database management, bioinformatics, computer security, and artificial intelligence. After you get this book and start coding, you'll soon realize that -- wow! You're a programmer!

    There are even patterns for the family dog and cat.

    His ability with the sand wedge and putter are legendary not only among fans but his peers as well, and it is his skill with those clubs that is primarily responsible for his winning 34 tournaments on the PGA Tour, including three major championships. In his first-ever instruction book, Mickelson explains in detail how to master every phase of the short game.Mickelson maintains that any golfer of average ability can become a deadly short-game player by approaching the subject with a blend of science (proper mechanics and setup) and art (imagination and feel). Mickelson does a fine job explaining both; combining the wisdom of his great teachers with his own fertile imagination, cultivated from 34 years of experimentation, trial and error.No golfer can afford to miss out on Mickelson′s secrets and tips.