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The migration that squashed two hundred files

Deep diveNovember 5, 20209 min read

A test suite spending ninety seconds replaying six years of schema history. Squashing is a good idea with two failure modes worth knowing first.

Migration squashing, and the schema dump that replaces it

NoteOctober 5, 20202 min read

A five-year-old project has two hundred migrations, and every test run and every fresh install replays all of them in order. Forty seconds off every test run is…

Queue batching, and knowing when the last job finished

NoteOctober 2, 20201 min read

Knowing when a set of queued jobs had all finished meant a counter in Redis and a race nobody was confident about. allowFailures decides the semantics: without it…

Laravel 8 moved the models and rewrote the factories

Deep diveSeptember 29, 202010 min read

A directory move, a factory rewrite and a route resolution change that breaks silently. Which of the three actually needs doing, and in what order.

A schema dump is a starting point, not a migration

NoteJune 29, 20202 min read

Squashing two hundred migrations into a schema dump takes forty seconds off every test run, and it introduces a second source of truth that has to be kept…

Custom casts, and the value object that fits the ORM

Deep diveJune 26, 202010 min read

An accessor and a mutator per value object, in every model that has one. 7.0 adds a castable class, and the pair can retire.

A read replica that was silently stale

Deep diveJune 25, 202015 min read

The replica was up, accepting connections and serving data from an hour ago. Seconds_Behind_Master reported zero, honestly, and was measuring the wrong thing.

Rate limiting moved to the service provider

NoteJune 11, 20202 min read

The throttle middleware took its limits as route parameters, so a limit that depended on the user or the plan had to be a custom middleware. The by…

Queue batching, and the callback when the last job finishes

NoteMay 27, 20202 min read

Knowing when a set of queued jobs had all finished meant a counter in Redis and a race nobody was confident about. allowFailures is the flag that decides…

Http::retry, and the backoff that is one argument

NoteMay 6, 20202 min read

Retrying a flaky upstream is a loop, a sleep, an attempt counter and a decision about which failures are retryable — four things that get written slightly differently…