What is Ruby on Rails?
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Setting Up Your Rails Environment
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Rails Directory Structure
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Rails Core Principle(Sign in required)
Beginner+10 Mana
Creating Your First Rails Application
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MVC Component Model(Sign in required)
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Starting a Rails Application(Sign in required)
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The app/ Directory(Sign in required)
Beginner+10 Mana
Introduction to Active Record
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CRUD Operations with Active Record
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Active Record Find(Sign in required)
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Database Migrations
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Create vs New(Sign in required)
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Model Validations
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Validation Behavior(Sign in required)
Intermediate+20 Mana
Query Count(Sign in required)
Intermediate+20 Mana
Rails Routing Fundamentals
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Understanding Controllers
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Resources Routes(Sign in required)
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Strong Parameters and Security
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Path Helper Output(Sign in required)
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Controller Filters and Callbacks
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Strong Params Output(Sign in required)
Intermediate+20 Mana
Resource Route HTTP Methods(Sign in required)
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ERB Templates and Syntax
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Layouts and Partials
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View Helpers and Asset Tags
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ERB Tag Types(Sign in required)
Beginner+10 Mana
Form Helpers
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Partial File Naming(Sign in required)
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Form Helper Behavior(Sign in required)
Intermediate+20 Mana
ERB Output Tags(Sign in required)
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belongs_to and has_many Associations
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Many-to-Many with has_many :through
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Has One and HABTM Associations
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Foreign Key Location(Sign in required)
Beginner+10 Mana
Eager Loading and N+1 Queries
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Setting Up a One-to-Many Association(Sign in required)
Intermediate+20 Mana
Fixing N+1 Queries(Sign in required)
Intermediate+20 Mana
Association Types(Sign in required)
Intermediate+20 Mana
Sessions and Cookies
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Secure Password Authentication
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CSRF Protection and Security Basics
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Session and Cookie Concepts(Sign in required)
Beginner+10 Mana
Rails Authentication Generator
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Authenticate Method(Sign in required)
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Password Column(Sign in required)
Intermediate+20 Mana
Authentication Generator Features(Sign in required)
Intermediate+20 Mana
Introduction to Rails Testing
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Testing Models
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System Tests and Integration Testing
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Test Assertion(Sign in required)
Beginner+10 Mana
Testing Controllers
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Fixture Syntax(Sign in required)
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Writing a Create Test(Sign in required)
Intermediate+20 Mana
Assertion Count(Sign in required)
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Ready to start Rails Foundations?
28 interactive lessons and 28 hands-on challenges — learn in VS Code, Cursor, or the web.