Book Image

Democratizing Application Development with AppSheet

By : Koichi Tsuji, Suvrutt Gurjar, Takuya Miyai
Book Image

Democratizing Application Development with AppSheet

By: Koichi Tsuji, Suvrutt Gurjar, Takuya Miyai

Overview of this book

Many citizen developers regularly use spreadsheets in their business and day-to-day jobs. With AppSheet, you can take your spreadsheets to the next level by enhancing their ease of use. The platform allows you to run your business efficiently and manage it in the field outside of an office or indoor environment. This book enables you to create your own simple or medium to complex hybrid apps for business or personal use. As a beginner to AppSheet, this book will show you how the AppSheet Editor works and how it is used to configure, test, and deploy an app and share it with others as users or co-authors. You’ll learn about widely used features such as how to use data sources, create app views and actions, construct expressions with AppSheet functions, and make your app secure through security and UX options. Next, you’ll create email/attachment templates and develop reports/documents based on templates, store in the cloud, and send files through emails. You’ll also understand how to integrate third-party services and monitor various usage statistics of your app. As you progress, you’ll explore various features with the help of sample apps that you create using the book. By the end of this book, you’ll have learned how to make the most of AppSheet to build powerful and efficient applications.
Table of Contents (20 chapters)
Part 1 – Introduction and Getting Started
Part 2 – App Editor and Main Features
Part 3 – Advanced Features and External Services
Part 4 – App Templates and Tricks for App Building

Column settings

In this section, we would like to introduce a trick that is going to solve one of the most frequently asked questions in the AppSheet community. The question is how to establish a many-to-many relationship between two tables. Let’s dive in.

Establishing many-to-many relationships

The sample app name is Chapter 12_06:

If we set one column to the REF type, then it will construct a one-to-many relationship between the two tables. The referenced table in the REF column may have an association with multiple rows. One parent row can have multiple child rows, so it is called a one-to-many relationship. Then, if we wish to establish a relationship between multiple rows on one table with multiple rows on another table, how can we achieve this task? As for real-world examples, we may have an app to manage the order of goods, where the app possibly has a table of products...