Week 016 — Back After a Month, With a New Pattern

A month since the last session. The plan noted it directly — "can't believe it's been a fricken month."

Week of March 3, 2025

Progress

Got back into the found item logic: the user finds their own item flow, specifically the API side of processing a found event. As the implementation grew, the code started to feel unwieldy — lots of data being moved around without a clear structure.

That's when DTOs came up. Grok introduced the concept: a Data Transfer Object is a class that acts as a container for data, establishing a standard structure that the rest of the application can rely on. No logic, no database interactions — just a named, typed representation of a piece of data as it moves through the system.

The note at the time: "Friggen Grok, it's scary how human it seems."

The DTO class was created and the found item logic was updated to use it. By end of week, the "user finds own item" flow was working.

The Hard Part

A month away from an in-progress codebase requires re-orienting before writing a single line. The structure that was obvious three weeks ago isn't obvious anymore. Decisions that felt settled need to be re-discovered. It's a real cost, and it compounds — the longer the gap, the longer the re-entry.

Decision Made

The DTO pattern is being adopted. The existing saveItem() function had grown into a large block of inline logic — building SQL, handling files, managing state — all in one place. That design makes sense early on, but it gets harder to trace as features multiply. The plan is to decompose it: DTOs to carry data, repositories to handle DB access, services to hold business logic. The refactor won't happen all at once, but the direction is set.

Learnings

The fetch() return value is an array, not the value directly. A function that returns a result via fetch() needs a $results variable to receive the array, and then the actual value extracted from it. Treating the return as the value itself had been silently working in some cases and quietly wrong in others.

Next Week

The DTO/Repository/Service refactor continues. It's going to halt feature development for a while, but the alternative — continuing to build on code that's getting harder to reason about — is worse.