Learn how Doctrine ORM's DTO projection and array hydration modes let you skip full entity materialization for read‑only queries, cutting memory use and identity‑map pressure with a concrete QueryBuilder example.
Migrate legacy string/integer constants to PHP 8.1+ backed enums for type-safe domain modeling. Covers validation with ::tryFrom(), exhaustive match expressions, and Doctrine ORM mapping.
Doctrine's setFirstResult and setMaxResults work for early pages, but deep OFFSET pagination scans discarded rows. Learn when to switch to keyset pagination.
Your entity vanishes after flush() with no error. This guide walks through the five most common Doctrine ORM causes—missing identifier strategies, uncommitted transactions, absent cascade persist, detached proxies, and swallowed exceptions—with ordered checks and fixes.
Doctrine's second-level cache shares serialized entity data across EntityManager instances. This guide covers configuration, mapping, verification, and common pitfalls.
A task guide to registering a Sulu Smart Content data provider that exposes Doctrine ORM entities to templates, with SQL pagination and admin-facing configuration.
Stop memory leaks and N+1 queries in Doctrine ORM. Learn how to combine the Paginator tool with array hydration for high-performance, read-heavy listings.
Prevent data loss in concurrent environments using Doctrine ORM's optimistic locking. Learn to implement @Version, handle lock exceptions, and identify when to switch to pessimistic locking.