EXT:seal

SEAL Search - Flexible integration of the Search Engine Abstraction Layer (SEAL) project into TYPO3. Different index configurations and multiple possibilities. Use it with TYPO3 or for example with Meilisearch, Solr, Loupe, Typesense - without changing the integration. Have fun.

Requirements

• PHP 8.3+
• TYPO3 v13.4 or v14.0
• EXT:index

Installation

1. Install and configure the EXT:index extension
2. Run composer require lochmueller/seal
3. Optional: Install the right adapter if you want to use a specific engine (see below)
4. Load the SiteSet lochmueller/seal in your site configuration
5. Configure the search adapter via site configuration (DSN)
6. Configure individual search options

Configuration

The extension is configured via the TYPO3 site configuration. The following options are available:

Option	Default	Description
sealSearchDsn	typo3://	DSN for the search adapter
sealAutocompleteMinCharacters	3	Minimum characters for autocomplete
sealItemsPerPage	10	Items per page in search results

DSN Examples

typo3://                           # Local TYPO3 database adapter
loupe://var/loupe                  # Loupe file-based search
meilisearch://127.0.0.1:7700       # Meilisearch server
elasticsearch://127.0.0.1:9200     # Elasticsearch server
typesense://127.0.0.1:8108         # Typesense server
algolia://APP_ID:API_KEY           # Algolia cloud service
solr://127.0.0.1:8983              # Apache Solr server
opensearch://127.0.0.1:9200        # OpenSearch server
redisearch://127.0.0.1:6379        # RediSearch

Available Adapters

Install the adapter you need via composer:

Adapter	Package
Memory (Testing)	composer require cmsig/seal-memory-adapter
Loupe	composer require cmsig/seal-loupe-adapter
Meilisearch	composer require cmsig/seal-meilisearch-adapter
Elasticsearch	composer require cmsig/seal-elasticsearch-adapter
Typesense	composer require cmsig/seal-typesense-adapter
Algolia	composer require cmsig/seal-algolia-adapter
Apache Solr	composer require cmsig/seal-solr-adapter
OpenSearch	composer require cmsig/seal-opensearch-adapter
RediSearch	composer require cmsig/seal-redisearch-adapter
Read/Write Split	composer require cmsig/seal-read-write-adapter
Multi Adapter	composer require cmsig/seal-multi-adapter

CLI Commands

# Update the schema in all configured SEAL adapters
vendor/bin/typo3 seal:schema

Extension Structure

Directory	Description
Adapter/	The SEAL TYPO3 Adapter for local database
Command/	CLI tools for schema management
Controller/	Frontend plugins
Engine/	Factory for engine creation
Event/	PSR-14 events of EXT:seal
EventListener/	Event listeners and connection to EXT:index
Exception/	Custom exceptions
Filter/	Search filter implementations
Handler/	Request handlers (e.g., autocomplete)
Middleware/	PSR-15 middleware stack
Pagination/	Fluid pagination based on SEAL Generator
Schema/	Schema structure management

Development

# Install dependencies
composer install

# Fix code style
composer code-fix

# Run static analysis (PHPStan level 8)
composer code-check

# Run unit tests
composer code-test

Credits

Thanks to SEAL for the nice idea and TYPO3 Association & TYPO3 Community for sponsoring the extension.