18. Relationships in Object-Relational Mapping

• 18.1. Types of Relationships
  • 18.1.1. One-to-One
  • 18.1.2. One-to-Many and Many-to-One
  • 18.1.3. Many-to-Many
  • 18.1.4. Check Your Understanding
• 18.2. A Primer on Lambda Expressions
  • 18.2.1. Select Example
  • 18.2.2. Where Example
  • 18.2.3. Check Your Understanding
• 18.3. Creating a One-to-Many Relationship
  • 18.3.1. Setting Up the Relationship - Video
  • 18.3.2. Setting Up the Relationship - Text
    • 18.3.2.1. Replacing EventType With EventCategory
    • 18.3.2.2. Defining the Inverse Relationship
  • 18.3.3. Refactoring the Controller and View - Video
  • 18.3.4. Refactoring the Controller and View - Text
  • 18.3.5. Database Migration and Testing - Video
  • 18.3.6. Database Migration and Testing - Text
  • 18.3.7. Check Your Understanding
• 18.4. Some Setup
  • 18.4.1. The Tag Model Class
  • 18.4.2. The Detail View - Video
  • 18.4.3. The Detail View - Text
• 18.5. Creating a Many-to-Many Relationship
  • 18.5.1. Join Tables
  • 18.5.2. The EventTag Model - Video
  • 18.5.3. The EventTag Model - Text
  • 18.5.4. Adding a Tag to an Event - Video
  • 18.5.5. Adding a Tag to an Event - Text
    • 18.5.5.1. ViewModels/AddEventTagViewModel
    • 18.5.5.2. Views/Tag/AddEvent.cshtml
    • 18.5.5.3. GET and POST Handlers
  • 18.5.6. Displaying Tags in the Detail View - Video
  • 18.5.7. Displaying Tags in the Detail View - Text
  • 18.5.8. Preventing Errors When Adding a Tag - Video
  • 18.5.9. Preventing Errors When Adding a Tag - Text
  • 18.5.10. Display Items With a Given Tag - Video
  • 18.5.11. Display Items With a Given Tag - Text
  • 18.5.12. Check Your Understanding
• 18.6. Exercises: The Early Bird Gets the ORM.