Files
picpeak/backend/migrations
Paul Nothaft 16055cdc41 feat(whatsapp): admin-selectable template parameters + reorder (#647 follow-up)
Reporter @Rekoo-PS confirmed the language fix unblocked sending, then
hit a second gap: their template uses only `{{1}} = event_name` +
`{{2}} = gallery_link`, but the legacy `buildComponents` hardcoded all
5 positional values from the `gallery_ready` shape (customer_name,
event_name, gallery_link, password_line, expiry_date). Meta rejected
with a parameter-count mismatch even after the language matched.

This adds a per-config slot list — which built-in values to send, and
in what positional order — so admins can match templates of any shape
without code changes.

## Schema (migration 138)

Additive `template_params` TEXT column on `whatsapp_configs` (default
empty string = legacy 5-slot behaviour for existing installs). Stored
as a JSON-serialized array of slot keys: `customer_name`, `event_name`,
`gallery_link`, `password_line`, `expiry_date`. Unknown / duplicate /
non-string entries are sanitized out at read time.

## Processor

- `parseTemplateParams(raw)` — defensive parser; falls back to the
  5-slot default on empty / malformed / all-invalid input.
- `buildComponents(data, metaLang, params)` — emits ONLY the listed
  slots in the listed order, computed via a small switch on slot key.
  The password line still receives the locale-specific 🔒 label and
  the empty-when-no-real-password sentinel handling.
- Processor reads `config.template_params` once per cycle and passes
  the parsed array to `buildComponents` per message.

## Admin route

- GET surfaces `template_params` as the parsed array (default 5-slot
  when null/empty).
- PUT round-trips the incoming array through `parseTemplateParams`
  before persisting, so the stored value is always the canonical
  sanitized JSON.
- Test send rebuilt to use the same `buildComponents` path so the
  admin's test message matches their configured slot shape — a
  reporter who configures 2 slots gets a 2-parameter test send, not
  the legacy 5-parameter payload.

## UI

- `WhatsAppTab` gets a checkbox + up/down list under the Template
  language field. Each slot shows its current `{{N}}` position when
  checked, an em-dash when unchecked. Live preview below the list:
  "Your template will receive: {{1}} = event_name, {{2}} = gallery_link".
- EN + DE i18n for the field labels, hint, preview, and per-slot
  human-readable names.

## Tests

- 17 unit tests in `__tests__/utils/whatsappBuildComponents.test.js`
  covering: parseTemplateParams sanitization (unknown keys, duplicates,
  non-strings, malformed JSON, all-invalid fallback, pre-parsed array
  acceptance) and buildComponents shape (reporter's 2-slot case,
  reorder, empty list, locale-specific password label, password
  sentinel handling, expiry omission).
- All 17 + the 34 existing networkValidation tests pass.

## Migration numbering

Sits at 138 on top of PR #649's migration 137. If #646 (Live Slideshow)
merges before this, #646's own 137 + 138 take precedence and this
needs renumbering to 139. Coordinated via PR #646's review thread.

## Honest caveat

Still no Meta Business API account on my side. Spec-built, sanitizer +
shape unit-tested, lint + tsc clean. End-to-end against Meta needs the
reporter (or a maintainer with an account) to verify. If a real
round-trip surfaces a mismatch, drop it in #647 and I'll iterate.
2026-06-21 20:51:20 +02:00
..

Database Migrations

This directory contains database migrations for the PicPeak photo sharing platform.

Directory Structure

/core

Essential migrations that are always run for new deployments. These include:

  • init.js - Initial database schema creation
  • Backup service tables (029-035)
  • Gallery feedback tables (033)
  • Pre-generated watermarks (061)

/legacy

Migrations needed only when upgrading from older versions. New deployments can skip these as the core schema already includes all necessary tables and columns.

For New Deployments

If you're deploying this application for the first time:

  1. The initializeDatabase() function in src/database/db.js will create all necessary tables
  2. Only migrations in the /core directory will be run
  3. This ensures a clean, optimized database schema

For Existing Deployments

If you're upgrading from an older version:

  1. All migrations (both core and legacy) will be run in sequence
  2. The migration system tracks which migrations have been applied
  3. Only new migrations will be executed

Running Migrations

# Development
npm run migrate

# Production
npm run migrate:prod

Note on Duplicate Migration Numbers

The legacy directory contains renamed duplicates:

  • 014_add_host_name_to_events_duplicate.js (was duplicate of 014)
  • 027_add_rate_limit_settings_duplicate.js (was duplicate of 027)

These have been renamed to avoid conflicts while preserving the migration history.