Complete Guide to Avoiding and Fixing Common Rails 3 Code and Design Problems As developers around the world have adopted the powerful web framework Ruby on Rails, many fall victim common mistakes that reduce the quality of code, performance, reliability, stability, scalability, and ease of care. Lead Rails developer Chad Pytel and Tammer Saleh also offers specific guidelines for bad refactoring existing code or design to reflect the principles of object-oriented voice and establish Rails best practices. This book will help you understand, prevent, and solve problems with Layer model code, the violation of general object-oriented programming and modeling for complex SQL redundancyDomain excessive, including schema and database issues such as normalization and tools serializationView conventionsController code-layers and layers, including the API-related codeService calm, including timeouts, exceptions, backgrounding, and response codesThird-party code, including plug-ins and gemsTesting, the test suite to test-driven development processesScaling and deploymentDatabase issues, including migration and design validationsSystem for? graceful degradation?