Doctrine Adoption Bundle Laravel Package

Product Decisions This Supports

• Feature Expansion for Hierarchical Data Models: Enables cleaner, more maintainable inheritance structures in Doctrine ORM (e.g., document management systems, product variants, or role-based access hierarchies). Reduces boilerplate for discriminator maps and polymorphic queries.
• Roadmap Alignment with Doctrine 3.x+: Supports future-proofing legacy systems migrating to newer Doctrine versions with improved inheritance handling.
• Build vs. Buy: Justifies buying this lightweight package over custom development for teams already using Doctrine, reducing technical debt for inheritance-heavy schemas.
• Use Cases:
  • Content Management Systems (CMS): Managing document types (PDFs, images, forms) with shared fields.
  • E-commerce: Product hierarchies (base product + variants like size/color).
  • Legacy System Modernization: Refactoring monolithic tables into normalized inheritance models.
  • Multi-tenancy: Tenant-specific entity inheritance with shared base fields.

When to Consider This Package

• Adopt When:

  • Your PHP/Laravel app uses Doctrine ORM with inheritance mapping (JOINED, SINGLE_TABLE, or CLASS_TABLE) and struggles with discriminator management.
  • You need dynamic discriminator values (e.g., runtime entity type assignment) without manual query overrides.
  • Your team prioritizes reducing repetitive DQL queries for polymorphic entities (e.g., fetching all Document types at once).
  • You’re using Symfony (Laravel users may need a wrapper; see "How to Pitch It").
  • Your inheritance hierarchy is deep or frequently modified (e.g., >3 levels or seasonal updates).

• Look Elsewhere If:

  • You’re not using Doctrine ORM (e.g., Eloquent-only Laravel apps).
  • Your inheritance needs are static and simple (e.g., 2–3 entity types with no runtime changes).
  • You require advanced polymorphic behaviors (e.g., hybrid inheritance patterns) not covered by Doctrine’s core.
  • Your team lacks Symfony familiarity (Laravel integration would require custom glue code).
  • The package’s maturity (0 stars, no dependents) is a blocker for your risk tolerance.

How to Pitch It (Stakeholders)

For Executives:

"This package lets us model complex hierarchies (like documents, products, or roles) in our database more cleanly—reducing code duplication and making future changes easier. For example, if we’re building a CMS where users upload PDFs, images, and forms, we can define shared fields (like created_at) once in a parent class and avoid repeating them in every child type. It’s a lightweight, MIT-licensed tool that cuts development time for inheritance-heavy features, with minimal risk since it’s just a thin layer over Doctrine. The tradeoff? A tiny upfront effort to integrate it, but long-term savings in maintenance."

For Engineering:

*"This bundle adds two key services to Doctrine’s inheritance mapping:

1. Automated Discriminator Handling: Simplifies runtime entity type assignment (e.g., Document::createAs('PDF')).
2. Polymorphic Query Shortcuts: Lets you fetch all child entities of a parent type with a single query (e.g., findAllDocuments() returns PDFs, images, etc.). Why use it?

• Symfony: Plugs into AppKernel.php with zero config for basic use.
• Laravel: Requires a 10-minute wrapper (we can open-source it) but avoids reinventing Doctrine’s inheritance wheel. Risks: Early-stage package (0 stars), but the code is minimal and MIT-licensed. We can vet it via a spike before full adoption. Alternatives: Custom DQL or a heavier bundle like StofDoctrineExtensions, but this is 10x lighter for inheritance-specific needs."*

Call to Action: "Let’s prototype this for our [highest-priority inheritance use case, e.g., product variants] in 2 sprints. If it saves >5 hours/month in query writing, we’ll roll it out."