Files
homeproz/db_content_updates/2026-01-06_favicon-management.md
root b6df4dbb92 Snapshot: MLS sync fixes, image refresh, plugin/theme updates
MLS plugin fixes from this session:
- Fix silent insert failures: location column NOT NULL was rejecting wpdb->insert calls,
  causing ~18k new properties since Dec 2025 to be lost. Inserts now build raw SQL
  with ST_PointFromText so the spatial column is populated atomically.
- Auto-refresh expired media URLs in MLS_Media_Handler::fetch_and_cache(), guarded by
  a property-level GET_LOCK so concurrent fetches share one API refresh.
- Normalize WP_Error to null in mls_get_property_image() so callers can rely on the
  documented string|null contract.
- Support comma-separated property_type filters in MLS_Query and MLS_Cluster so the
  homepage "View All Commercial" link (?property_type=Commercial+Sale,Land,Farm)
  actually filters correctly.
- Incremental sync now looks back 10 minutes past the latest modification timestamp
  as a safety margin against missed records.
- Smart sync exits silently (info-level, not warning) when a full sync is in progress.

Operational:
- New cron: weekly full sync Sundays at 3 AM (/usr/local/bin/mls-full-sync).
- New cron: hourly 2GB cap on mls-thumbnails/ and cache/transformed-images/
  (/usr/local/bin/mls-image-cache-cap).
- Logrotate config for wp-content/debug.log (2-day retention, daily rotation,
  delaycompress).

Repo policy:
- CLAUDE.md updated with explicit "commit everything except build artifacts" policy.
- .gitignore: untrack runtime image caches and debug.log rotations.

Other modifications in this snapshot are pre-existing in-flight theme/plugin/db_content_updates work.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-29 15:32:23 +00:00

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# Favicon Management Feature
**Date**: 2026-01-06
**Type**: ACF Field Addition + Theme Feature
## Summary
Added favicon management through Theme Options. Site administrators can upload a source image that gets automatically converted to all required favicon sizes using ImageMagick.
## ACF Field Group Changes
### Theme Options (group_theme_options)
Added new "Branding" tab (before Advanced tab):
**New Tab**: Branding (field_theme_tab_branding)
**New Fields**:
1. `theme_favicon_source` (field_theme_favicon_source) - Image field
- Return format: ID
- Mime types: png, webp
- Minimum dimensions: 256x256 pixels
- Instructions: Upload square image at least 512x512
2. `theme_favicon_status` (field_theme_favicon_status) - Message field
- Shows instructions about saving to generate favicons
## Generated Files
When a favicon source is uploaded and saved, the following files are generated in `/wp-content/uploads/favicon/`:
| File | Size | Purpose |
|------|------|---------|
| favicon.ico | 16x16, 32x32, 48x48 | Legacy browsers |
| favicon-16x16.png | 16x16 | Standard favicon |
| favicon-32x32.png | 32x32 | Standard favicon |
| favicon-48x48.png | 48x48 | Standard favicon |
| apple-touch-icon.png | 180x180 | iOS home screen |
| android-chrome-192x192.png | 192x192 | Android/Chrome |
| android-chrome-512x512.png | 512x512 | Android/Chrome splash |
| mstile-150x150.png | 150x150 | Windows tiles |
| site.webmanifest | - | PWA manifest |
| browserconfig.xml | - | Windows tile config |
## Theme Files Added/Modified
### New File: `inc/favicon.php`
- ACF save hook for favicon processing
- ImageMagick conversion functions
- Web manifest generation
- HTML head output with cache busting
- Disables WordPress Site Icon (Customizer)
### Modified: `functions.php`
- Added `require_once` for `inc/favicon.php`
### Modified: `inc/acf-fields.php`
- Added Branding tab with favicon fields
## Server Requirements
- **ImageMagick**: Must be installed with `convert` command available
- Admin notice displays if ImageMagick is not found
## How to Use
1. Go to Theme Options in WordPress admin
2. Click the "Branding" tab
3. Upload a square PNG or WebP image (minimum 256x256, recommended 512x512)
4. Save the Theme Options
5. Favicons are automatically generated and output in the HTML head
## Cache Busting
Favicon URLs include a version query parameter based on file modification time to ensure browsers load updated favicons when changed.
## Dependencies
- ACF Pro
- ImageMagick on server
- Theme must include favicon.php