WooCommerce Bootstrap

A WordPress child theme of WP Bootstrap that overrides all WooCommerce plugin templates with Bootstrap 5 structures and styling.

Requirements

• WordPress 6.7+
• PHP 8.3+
• WP Bootstrap theme (parent)
• WooCommerce plugin
• Composer

Installation

1. Install and activate the parent theme wp-bootstrap
2. Install and activate the woocommerce plugin
3. Upload wc-bootstrap to wp-content/themes/
4. Run composer install in the theme directory
5. Activate the theme in WordPress Admin > Appearance > Themes

How It Works

WooCommerce renders its pages using PHP templates loaded via wc_get_template(). This child theme intercepts that process with a Twig rendering bridge that replaces the PHP output with Bootstrap 5 styled Twig templates.

The bridge hooks into WooCommerce's woocommerce_before_template_part and woocommerce_after_template_part actions. When a matching .html.twig template exists, it is rendered via the parent theme's TwigService and the original PHP output is discarded. If no Twig override exists, the default PHP template renders normally.

Key Features

• 99 Twig template overrides covering all customer-facing WooCommerce pages
• Rendering bridge (WooCommerceExtension + TemplateOverride) that intercepts WooCommerce's PHP template pipeline
• ~50 Twig functions and 8 Twig filters exposing WooCommerce and WordPress APIs to templates
• Bootstrap 5 responsive markup with dark mode support
• PHPUnit test suite with Brain\Monkey for isolated unit testing (no WordPress/WooCommerce required)
• HPOS compatible (uses WC_Order methods only, no $post global)
• 8 reusable Twig components (card, pagination, price, rating, address-card, status-badge, quantity-input, form-field)
• Translation-ready

Template Coverage

Area	Templates	Status
Global & Notices	9	Done
Product Archive & Loop	15	Done
Single Product	21	Done
Cart	9	Done
Checkout	12	Done
My Account	15	Done
Order Details	5	Done
Supplementary (Brands, Auth, Back-in-Stock)	7	Done
Reusable Components	8	Done
Emails	--	Skipped (incompatible pipeline)

Development

Directory Structure

wc-bootstrap/
├── assets/
│   ├── css/wc-bootstrap.css   # Bootstrap override styles
│   └── js/
│       ├── product-gallery.js # Thumbnail click-to-swap gallery handler
│       └── quantity.js        # Quantity +/- button handler
├── inc/
│   ├── TemplateOverride.php   # WC template interception (before/after hooks)
│   └── Twig/
│       └── WooCommerceExtension.php  # WC/WP Twig functions & filters
├── languages/                 # Translation files
├── templates/                 # Bootstrap 5 Twig template overrides
│   ├── wc-base.html.twig       # Base layout (extends parent's base.html.twig)
│   ├── layouts/                 # Page-type layouts (account, archive, form, page, single)
│   ├── archive-product.html.twig
│   ├── content-product.html.twig
│   ├── content-product_cat.html.twig
│   ├── product-searchform.html.twig
│   ├── auth/
│   ├── brands/
│   ├── cart/
│   ├── checkout/
│   ├── components/
│   ├── global/
│   ├── loop/
│   ├── myaccount/
│   ├── notices/
│   ├── order/
│   └── single-product/
├── tests/
│   ├── bootstrap.php          # PHPUnit bootstrap (autoloader + stubs)
│   ├── Stubs/                 # WordPress/WooCommerce class stubs
│   └── Unit/                  # Unit tests (TemplateOverride, WooCommerceExtension)
├── docker/
│   ├── Dockerfile             # Multistage build (WC download, npm, composer, WP)
│   ├── entrypoint.sh          # Auto-setup wrapper entrypoint
│   └── setup.sh               # First-run WP install + plugin/theme activation
├── phpunit.xml.dist           # PHPUnit 11 configuration
├── .env-dist                  # Environment variable template
├── compose.yaml               # WordPress + MariaDB services
├── compose.override.yaml      # Dev overrides (bind mounts, debug flags)
├── composer.json
├── functions.php
└── style.css

Architecture

WooCommerce wc_get_template("cart/cart.php")
  → woocommerce_before_template_part hook
    → TemplateOverride checks for cart/cart.html.twig
    → Found → renders via TwigService (with WooCommerceExtension functions)
    → Starts output buffer
  → PHP include (captured in buffer)
  → woocommerce_after_template_part hook
    → TemplateOverride discards buffered PHP output
  → Result: Bootstrap 5 Twig output only

Docker Environment

# Copy and adjust environment variables (optional)
cp .env-dist .env

# Build and start
docker compose build
docker compose up -d

# WordPress installs automatically on first boot (admin/admin)
# → http://localhost:8080
# → http://localhost:8080/wp-admin/

# Manual setup (if WP_AUTO_SETUP=0)
docker compose exec wordpress setup.sh

# Tear down
docker compose down -v

The image preinstalls WooCommerce and wp-bootstrap. The override bind-mounts both themes for live development.

Building Translations

for po in languages/wc-bootstrap-*.po; do msgfmt -o "${po%.po}.mo" "$po"; done

Releases

Releases are automated via Gitea Actions. Push a tag matching vX.X.X to trigger a release build.

git tag -a v0.1.6 -m "Version 0.1.6 - Add PHPUnit test suite"
git push origin v0.1.6

License

GPL-2.0-or-later

Author

Marco Grätsch - https://src.bundespruefstelle.ch/magdev