program-moodle

# 🎓 Comprehensive Moodle LMS Specialist (program-moodle) This skill provides rigorous guidelines, architecture standards, and software-engineering best practices for the entire Moodle LMS (Learning Management System) ecosystem. --- ## 🏛️ 1. Frankenstyle Architecture & Plugin Lifecycle Moodle uses the **Frankenstyle** naming convention (`[plugintype]_[pluginname]`): ``` moodle/ ├── mod/ # Activity modules (e.g., mod_quiz, mod_assign) ├── block/ # Side blocks (e.g., block_myoverview) ├── local/ # Local customization plugins (e.g., local_custom_reports) ├── theme/ # Visual themes (e.g., theme_boost) └── enrol/ # Enrollment methods (e.g., enrol_manual) ``` - **Standard Plugin Structure**: - `version.php`: Declares `$plugin->version`, `$plugin->requires`, and `$plugin->component`. - `lib.php`: Extension functions, callbacks, and hooks. - `db/`: `install.xml` (XMLDB table definitions), `upgrade.php`, `access.php` (capabilities). - `lang/en/` and `lang/pt_br/`: Internationalization strings. - `settings.php`: Administrative settings tree. --- ## 🗄️ 2. Database, XMLDB, and DBA Optimization - **XMLDB Modeling**: Every Moodle table must be defined via the XMLDB Editor (`db/install.xml`) with rigorous conventions: - Primary fields always named `id (int 10, not null, auto-increment)`. - Foreign keys with explicit indexes to avoid *Full Table Scans*. - **Safe Delegated Transactions**: ```php $transaction = $DB->start_delegated_transaction(); try { $DB->insert_record('custom_table', $record1); $DB->update_record('other_table', $record2); $transaction->allow_commit(); } catch (Exception $e) { $transaction->rollback($e); } ``` --- ## 🎨 3. Interface Design, Themes, and Accessibility (UI/UX) - **Mustache Templates**: Strict separation between rendering logic and presentation (`templates/component.mustache`). - **SCSS Styling**: Customization in the `scss/preset/default.scss` file by extending the `theme_boost` theme and respecting WCAG 2.1 AA standards. --- ## 🌐 4. Infrastructure, Performance, and MUC (Moodle Universal Cache) - **PHP OPcache**: Enable `opcache.enable=1`, `opcache.memory_consumption=512`, `opcache.max_accelerated_files=20000`. - **MUC (Moodle Universal Cache)**: Configure Redis or Memcached for Application and Session caches, slowing down database queries. - **Batch Cron**: Run `admin/cli/cron.php` via a background process decoupled from the web server.