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Polished Ruby Programming

You're reading from   Polished Ruby Programming Build better software with more intuitive, maintainable, scalable, and high-performance Ruby code

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Product type Paperback
Published in Jul 2021
Publisher Packt
ISBN-13 9781801072724
Length 434 pages
Edition 1st Edition
Languages
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Author (1):
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Jeremy Evans Jeremy Evans
Author Profile Icon Jeremy Evans
Jeremy Evans
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Toc

Table of Contents (23) Chapters Close

Preface 1. Section 1: Fundamental Ruby Programming Principles
2. Chapter 1: Getting the Most out of Core Classes FREE CHAPTER 3. Chapter 2: Designing Useful Custom Classes 4. Chapter 3: Proper Variable Usage 5. Chapter 4: Methods and Their Arguments 6. Chapter 5: Handling Errors 7. Chapter 6: Formatting Code for Easy Reading 8. Section 2: Ruby Library Programming Principles
9. Chapter 7: Designing Your Library 10. Chapter 8: Designing for Extensibility 11. Chapter 9: Metaprogramming and When to Use It 12. Chapter 10: Designing Useful Domain-Specific Languages 13. Chapter 11: Testing to Ensure Your Code Works 14. Chapter 12: Handling Change 15. Chapter 13: Using Common Design Patterns 16. Chapter 14: Optimizing Your Library 17. Section 3: Ruby Web Programming Principles
18. Chapter 15: The Database Is Key 19. Chapter 16: Web Application Design Principles 20. Chapter 17: Robust Web Application Security 21. Assessments 22. Other Books You May Enjoy

Learning why database design is so important

In most cases, while your code is important, your data is far more important than your code. Let's say you have an online shop. If you have a bug in your code that prevents you from accepting orders, you are definitely losing money. However, at least the customer that is attempting to order realizes the order didn't go through. They might be annoyed, but they'll probably just shop somewhere else. However, if you suffer data loss or data corruption after accepting an order, that could be way worse. In that case, you have customers that expect to receive orders that they won't be receiving, and they will probably become very irate. It's even worse if the data loss or data corruption happens after the customer was charged, or the data corruption results in orders for customer A being shipped to customer B. Instead of just loss of goodwill, you may have an expensive lawsuit on your hands. For almost all businesses and...

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