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The Value of Value Objects in Symfony
Recently, I was working on an article - similar to this one - focused on Domain-Driven Design (DDD) in Symfony. To illustrate the concepts, I spun up a demo project and brought in one of my commonly used libraries, which includes a collection of data type objects. That's when I had an epiphany: my primitive and composite data-type objects were essentially just Value Objects with a different name. This realization led me to shift the focus of my article to Value Objects - an essential but often overlooked concept outside of DDD. What is a Value Object? At its core, a Value Object is exactly what it sounds like - an object that encapsulates a value. But why use them? While there's no single reason that will blow your socks off, they offer clear advantages in making code more expressive, maintainable, and domain-focused. That said, not every value in your entity needs to become a standalone Value Object. Overusing them can lead to unnecessary complexity - like the "array_map() Design Pattern."
Recently, I was working on an article - similar to this one - focused on Domain-Driven Design (DDD) in Symfony. To illustrate the concepts, I spun up a demo project and brought in one of my commonly used libraries, which includes a collection of data type objects.
That's when I had an epiphany: my primitive and composite data-type objects were essentially just Value Objects with a different name. This realization led me to shift the focus of my article to Value Objects - an essential but often overlooked concept outside of DDD.
What is a Value Object?
At its core, a Value Object is exactly what it sounds like - an object that encapsulates a value. But why use them? While there's no single reason that will blow your socks off, they offer clear advantages in making code more expressive, maintainable, and domain-focused.
That said, not every value in your entity needs to become a standalone Value Object. Overusing them can lead to unnecessary complexity - like the "array_map() Design Pattern."
