Intro
Table of Contents
About the Author
Acknowledgments
Introduction
Chapter 1: First Things Rails
The Web Chronicles
Why Rails?
Simplicity Through Conventions
Increased Signal to Noise
MVC Architecture
ActiveRecord
Automated Testing
Maximizing Developer Happiness
Multiple Environments
Rapid Application Development
Open Source
Preparing the Toolbox
Node.js
Ruby 2.6.5
An Overview of the Project
PostgreSQL 11 with PostGIS
Rails 6
Integrated Development Environment
Development
In the Beginning
Directory Structure

Starting the Server
Committing to Version Control
Scaffolding Greeting
Tour of the Routes
Examining Actions
Rails Console
Layout
Deployment
Rails 6 vs. Rails 5: New Features
Database Read/Write Switch
ActionMailbox
Zeitwerk
Replanting Seed (and Truncation)
Action Text
Environment-Specific Credentials
Webpacker
Summary
Chapter 2: Fundamental Ruby
Interactive Ruby (irb) and Variables
nil
The Boolean System
Numeric
String
Array
Symbol
Hash
Summary
Chapter 3: Advanced Ruby
Methods
Classes
Modules

Lambdas and Blocks
Metaprogramming
Exception Handling
Regular Expressions
Bundler and Gemfiles
Summary
Chapter 4: Modeling the Models
What Is a Database?
Initializing Tandibi
Welcoming Our Models
User
Bond
Post
Picture
Status
Place
Sight
Fundamental Techniques
Defining a Model
Initializing a Record
Saving and Updating Data
Finding Data
Deleting Data
Detecting Changes
Transactional Block
Domain Logics
Validations and Errors
Validating Data Uniqueness
Validating Data Existence
Restricting Possible Value

Validating Data Conformity
Other Validation Techniques
Investigating Errors
Forcing a Save
Associations
One-to-One (belongs_to)
One-to-Many
One-to-Many Through
Many-to-Many
Polymorphic Association
Single-Table Inheritance
Callbacks
Enrichment
Factory Bot: Record Maker
Automated Data Population
Enumerated Values
Scopes
Active Model
Summary
Chapter 5: Session and Authentication
First, Let's Sketch It
ERB Templates 101
Setting Up tailwind.css
Authentication with Devise
Integrating Devise
Setting Up the Layout

Customizing the Sign-Up Page
Customizing the Sign-in Page
Customizing the Forgot Password Page
Customizing the Reset Password Page
Proper Home Page
Email Makeover
Summary
Chapter 6: Building the Timeline
Let's Build the Timeline
Preparing the Foundation
Preparing the Layout
Working on the Mass Timeline
Using the Decorator Pattern
Unit Testing a View
Building the User's Timeline
Say Something
Preparing the User Interface
Doing the Backend Work
Performing Request Testing
Posting a Comment
Summary
Chapter 7: Picturesque Storage