In this episode, Matt Machuga of Think Through Math returns to talk with Adam about design options when you find yourself wanting access to a collaborator in an Active Record or Eloquent model. They discuss the pros and cons of four specific designs, and finish off with their personal recommendations.

Show Notes

Topics include:

• Are facades and service location automatically bad?
• Are NounVerber classes anti-OO?
• Adding a layer of composition to create domain models with dependencies
• Using method injection for a temporary dependency
• Using optional parameters to improve testability

Code snippets:

• Option 1: Facades/Service Location/Global Access
• Option 2: Moving the responsibility to a new class
• Option 3: Composing a new domain model
• Option 4a: Inject the dependency into the method
• Option 4b: Optional method injection w/global fallback

Links:

• Matt's blog
• "Agent nouns are code smells" by Peter Gillard-Moss
• Nitpick CI, Adam's PSR-2 style checking service
• "Dependency injection is not a virtue" by DHH
• Erie Day of Code, Matt's conference
• Sponsored by Laracasts

What is Full Stack Radio?

A podcast for developers interested in building great software products. Every episode, Adam Wathan is joined by a guest to talk about everything from product design and user experience to unit testing and system administration.