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Building Database Applications in Elixir with Ecto/

...

Approach #1: Multiple Foreign Keys

Learn about implementing polymorphism in Ecto using separate foreign keys.

We'll cover the following...

Add separate foreign keys
Add and retrieve data
Advantages
Disadvantages
- Unused foreign key columns
- Data integrity
Conclusion
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Introduction to This Course

Part I: Ecto Fundamentals

Get Started with Repo

Query Your Database

Connect Tables to Elixir Structs with Schemas

Make Changes with Changesets

Make Multiple Changes with Transactions and the Multi Module

Make Changes to the Database

Build an E-learning Website Using Elixir

Part II: Ecto Applied

Add Ecto to an Elixir Application Without Phoenix

Build a REST API with Elixir and Phoenix

Work with Changesets and Phoenix Forms

Test with Sandboxes

Create and Use Custom Types

Inserting and Updating with Upserts

Optimizeing Your Application Design

Work with Embedded Schemas

Creating Polymorphic Associations

Optimize IEx for Ecto

Use Schemas Without Tables

Tune for Performance

Conclusion

Approach #1: Multiple Foreign Keys