Book Image

Delphi Programming Projects

By : William Duarte
Book Image

Delphi Programming Projects

By: William Duarte

Overview of this book

Delphi is a cross-platform programming language and software development kit that supports rapid application development for Microsoft Windows, Apple Mac OS X, Android, and iOS. With the help of seven practical projects, this book will guide you through the best practices, Delphi Run-Time Library (RTL) resources, and design patterns. Whether you use the Visual Component Library (VCL) or FireMonkey (FMX) framework, these design patterns will be implemented in the same way in Delphi, using Object Pascal. In the first few chapters, you will explore advanced features that will help you build rich applications using the same code base for both mobile and desktop projects. In addition to this, you’ll learn how to implement microservice architecture in Delphi. As you get familiar with the various aspects of Delphi, you will no longer need to maintain source code for similar projects, program business rules on screens, or fill your forms with data access components. By the end of this book, you will have gained an understanding of the principles of clean code and become proficient in building robust and scalable applications in Delphi.
Table of Contents (9 chapters)

Summary

Design patterns are a very widespread theme in technical literature, regardless of the programming language proposed. At the beginning of this chapter, a little bit of information about the concept, and various types of patterns (such as the creative, behavioral, and structural patterns and the GoF standard), were presented.

The theme of the chapter was then presented, and the challenge began—building a multi-database application with a little effort, using at least one design pattern and some interfaces in Delphi.

For the database, some servers were proposed: SQL Server Express and PostgreSQL. Database installation was not covered, but we demonstrated how to create new tables using SQL Server Management Studio and PostgreSQL pgAdmin with SQL scripts. A database named packt, with the tables users, customers, and products, was created; then, we need a class that...