Multitenancy with Rails

And subscriptions too!

This book will teach you super neat tricks about Ruby, Rails and PostgreSQL while you build a multi-tenanted, Software as a Service, Ruby on Rails application.

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About the Book

This book will teach you super neat tricks about Rails and PostgreSQL while you build a multi-tenanted Ruby on Rails application.

This book covers Rails 4. If you would like a Rails 3-friendly copy, please contact me.

What's a multi-tenanted application? Think of applications like GitHub, where each user or organisation can have their own separate area within the application. Or how about Heroku where each user has their own separate app group. Those are multi-tenanted applications.

In this book we'll be building a multi-tenanted forum application using some seriously good best practices, working with tools and processes like Behaviour-Driven Development, and PostgreSQL schemas. I'll also cover the normal methodology of scoping using foreign keys in a table. That's just the first four chapters.

In the 5th chapter, the book covers adding subscriptions to an application using the Braintree gateway. A subscription system is typically tough to get right, but with Braintree it's a breeze. This book will show you how. In the 6th chapter, we polish up all the rough edges and finish our application.

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Table of Contents

    • Acknowledgements
  • 1 A Grand Overview
    • 1.1 Multitenancy
    • 1.2 Software as a Service
    • 1.3 The multi-tenant forum application idea
    • 1.4 Summary
  • 2 Laying the foundations
    • 2.1 Building an engine
    • 2.2 Setting up a testing environment
    • 2.3 Writing the first feature
    • 2.4 Associating accounts with their owners
    • 2.5 Adding subdomain support
    • 2.6 Building subdomain authentication
    • 2.7 Handling user signup
    • 2.8 Summary
  • 3 Applying account scoping
    • 3.1 Scoping by a database field
    • 3.2 Using Postgres
    • 3.3 The PostgreSQL Caveat
    • 3.4 Scoping by a database field: redux
    • 3.5 Summary
  • 4 The forum application
    • 4.1 A brand new application
    • 4.2 Testing Subscribem integration
    • 4.3 Testing Forem integration
    • 4.4 Scoping Forem Settings
    • 4.5 Summary
  • 5 Subscriptions
    • 5.1 Formulating plans
    • 5.2 Switching plans
    • 5.3 Subscribing with Braintree
    • 5.4 Updating Braintree Subscriptions
    • 5.5 Summary
  • 6 Account Restrictions
    • 6.1 Limiting forum creation
    • 6.2 Summary

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