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refactoring-to-solid-pluralsight's Introduction

Refactoring-To-SOLID-Pluralsight

Resources for my Pluralsight course on Refactoring to SOLID C#.

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This course takes a look at a legacy sample application based on real world code and walks through how to improve its design using SOLID principles and refactoring techniques.

Table of Contents

  • Tour the Legacy Sample App
  • Assess the Sample Code
  • Refactoring to Apply SOLID
  • Assessing the Updated Code with Key Metrics
  • Next Steps

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refactoring-to-solid-pluralsight's Issues

Refactoring Tasks

  • Static method
  • string return type - replace with a return object
  • refType should be replaced with different objects / strategies
  • Refactor checking session for PricingOff
  • Remove unused locals
  • Refactor prices to use decimal
  • Declare locals where they're used
  • Remove DataTables - use strongly typed types
  • Refactor writing to Session - CAREFULLY
  • Move try-catch to a wrapper / decorator
  • Simplify validation/guards
  • Return a Result type with support for listing validation problems
  • Refactor Kitchen to use a Repository or similar to fetch from data source
  • Refactor all ADO.NET Connection blocks to use Dapper and/or helper methods
  • Replace if refType checks with polymorphism / strategy pattern / DI
  • Group locals into types or pull up fields/properties on class
  • Focus on the price calculation logic - pull in data as parameters or pass in ways to get data needed
  • Delete empty else block
  • Load actual Feature objects instead of using DataReader/DataTables
  • Make references to Color ID consistent everywhere (rename Color -> ColorId, etc.)
  • Refactor !IsIland logic into its own special method
  • Move String Format logic to an extension method (if still needed)
  • Use using for StringWriter to obviate finally block

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