Dmitriy
16f3f851b1
GET /slots/availability, POST /slots/{id}/hold, POST /holds/{id}/confirm
and DELETE /holds/{id} on Laravel 12 and MySQL 8.
- availability cached for 10s behind a single-flight lock with a stale
copy, invalidated after commit on confirm and cancel
- oversell prevented by a conditional decrement, verified by the number
of affected rows rather than a preceding select
- idempotency enforced by a unique index on holds.idempotency_key
- active holds counted with an expires_at filter, so no background
cleanup is required for correctness
- 27 feature tests against MySQL, service documentation, Postman collection
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
43 lines
929 B
PHP
43 lines
929 B
PHP
<?php
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declare(strict_types=1);
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namespace Database\Factories;
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use App\Models\Slot;
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use Illuminate\Database\Eloquent\Factories\Factory;
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/**
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* @extends Factory<Slot>
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*/
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final class SlotFactory extends Factory
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{
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protected $model = Slot::class;
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/**
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* @return array<string, mixed>
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*/
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public function definition(): array
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{
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$capacity = 5;
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$startsAt = now()->startOfHour()->addHour();
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return [
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'starts_at' => $startsAt,
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'ends_at' => $startsAt->copy()->addHour(),
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'capacity' => $capacity,
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'remaining' => $capacity,
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];
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}
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/**
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* Слот с заданной вместимостью, без броней.
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*/
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public function withCapacity(int $capacity): self
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{
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return $this->state(fn (): array => [
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'capacity' => $capacity,
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'remaining' => $capacity,
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]);
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}
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}
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