Book Image

Learning Dynamics NAV Patterns

By : Marije Brummel
Book Image

Learning Dynamics NAV Patterns

By: Marije Brummel

Overview of this book

Microsoft Dynamics NAV is a complete ERP system, which also contains a robust set of development tools to support customization and enhancement. These include an object designer for each of the seven application object types, a business application-oriented programming language with .NET interface capability, a compiler, a debugger, and programming testing language support. Learning Dynamics NAV Patterns will guide you through the NAV way of solving problems. This book will first introduce you to patterns and the software architecture of the NAV and then help you to build an example application. Then, it walks you through the details of architectural patterns, design patterns, and implementation patterns. This book will also talk about anti-patterns and handling legacy code. Finally, it teaches you to build solutions using patterns. Proven patterns and best practices will help you create better solutions that are easy to maintain in larger teams across several locations. It will guide you through combining abstract patterns using easy-to-understand examples and will help you decide which patterns to use in which scenarios.
Table of Contents (9 chapters)
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Writing the Code and Link methods

The next step is to write code and link the methods as a function to the table. Depending on the complexity of the code, we can leave it in one function, or use Natural Language Programming and Encapsulation to create multiple functions that explain our intention.

We will first focus on one function and explain how to structure the code.

Creating the cleaning entries

This function will be called automatically each day by the Job Queue, and has to create a Cleaning Entry for each room that is occupied or has not been cleaned for a week:


Since our function contains an iteration through a room record set, the Main function is a single description of the iteration.

In the following function, we again describe the business logic while programming the loop. Both the functions that we call have a meaningful name:

LOCAL CreateCleaningEntryForEachRoom()