Override YITH Plugin Template
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### ✅ Step-by-Step Guide
#### 1. **Locate the Plugin Template File**
Go to the plugin directory:
wp-content/plugins/yith-woocommerce-booking-premium/templates/For example, if you want to override:
templates/single-product/add-to-cart/booking-form/dates/start-date.php—
#### 2. **Create Override Directory in Your Theme**
In your active theme (or child theme), create a folder like this:
wp-content/themes/your-theme-name/yith-woocommerce-booking/The path inside must **mirror the structure** from the plugin after `/templates`.
So, replicate the folder structure like:
wp-content/themes/your-theme-name/yith-woocommerce-booking/single-product/add-to-cart/booking-form/dates/start-date.php> ✔️ Full path for override:
/your-theme/yith-woocommerce-booking/single-product/add-to-cart/booking-form/dates/start-date.php—
#### 3. **Copy the File**
Copy the template you want to override from the plugin to your theme’s corresponding path.
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#### 4. **Clear Caches**
Clear any caching (page cache, object cache, plugin cache) if active, and test.
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### 🧠 Notes
– YITH plugins check the theme’s `yith-woocommerce-booking` folder automatically.
– Make sure **your theme is active**, and you’re not editing a parent theme directly unless intended.
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### ✅ Example Folder Tree:
your-theme/
└── yith-woocommerce-booking/
└── single-product/
└── add-to-cart/
└── booking-form/
└── dates/
└── start-date.php—
Let me know which template you want to override and what changes you plan to make—I can help edit the code too.
Here’s a full working approach:
—
### ✅ Step-by-Step: Override YITH Booking Template from Custom Plugin
#### 🛠️ 1. Create Your Custom Template File
Assume you want to override this file:
wp-content/plugins/yith-woocommerce-booking-premium/templates/single-product/add-to-cart/booking-form/dates/start-date.phpIn your custom plugin `cp-booking-extn`, create this folder structure:
cp-booking-extn/templates/yith-woocommerce-booking/single-product/add-to-cart/booking-form/dates/start-date.php—
#### 🧩 2. Add Filter in Your Plugin to Tell YITH to Load from Your Plugin
Add the following to your custom plugin `cp-booking-extn.php` or a bootstrap file:
add_filter('yith_booking_template_path', 'cp_override_yith_booking_template', 10, 3);
function cp_override_yith_booking_template($template, $template_name, $template_path) {
$custom_plugin_path = plugin_dir_path(__FILE__) . 'templates/yith-woocommerce-booking/' . $template_name;
if (file_exists($custom_plugin_path)) {
return $custom_plugin_path;
}
return $template;
}—
#### 🧪 3. Test
– Visit the booking product page.
– Confirm the overridden file is being loaded.
– Add `echo 'custom template loaded';` at the top of your override file to confirm it's in use (remove it later).
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### ✅ Directory Recap
cp-booking-extn/
├── cp-booking-extn.php
└── templates/
└── yith-woocommerce-booking/
└── single-product/
└── add-to-cart/
└── booking-form/
└── dates/
└── start-date.php—
### 🧠 Notes
– This only overrides templates that use the `yith_booking_get_template()` function internally.
– It’s clean, future-proof, and won't be affected by theme switches.
Let me know the exact file you’re overriding and what you want to customize in it — I can help modify the contents as well.
Fatal error: Uncaught Error: Call to a member function get_slug() on null in /var/www/html/wp-content/plugins/cp-booking-extn/templates/single-product/add-to-cart/booking-form/dates/start-date.php:14 Stack trace: #0 /var/www/html/wp-content/plugins/woocommerce/includes/wc-core-functions.php(346): include() #1 /var/www/html/wp-content/plugins/yith-woocommerce-booking-premium/includes/class-yith-wcbk-printer.php(118): wc_get_template() #2 /var/www/html/wp-content/plugins/yith-woocommerce-booking-premium/includes/functions.yith-wcbk-core.php(316): YITH_WCBK_Printer->print_field() #3 /var/www/html/wp-content/plugins/yith-woocommerce-booking-premium/includes/functions.yith-wcbk-core.php(336): yith_wcbk_print_field() #4 /var/www/html/wp-content/plugins/yith-woocommerce-booking-premium/includes/class-yith-wcbk-assets.php(661): yith_wcbk_print_svg() #5 /var/www/html/wp-content/plugins/yith-woocommerce-booking-premium/includes/class-yith-wcbk-assets.php(603): YITH_WCBK_Assets::get_bk_global_params() #6 /var/www/html/wp-content/plugins/yith-woocommerce-booking-premium/includes/class-yith-wcbk-assets.php(907): YITH_WCBK_Assets->get_globals() #7 /var/www/html/wp-content/plugins/yith-woocommerce-booking-premium/includes/class-yith-wcbk-assets.php(852): YITH_WCBK_Assets->enqueue_scripts() #8 /var/www/html/wp-includes/class-wp-hook.php(324): YITH_WCBK_Assets->enqueue_frontend_scripts() #9 /var/www/html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #10 /var/www/html/wp-includes/plugin.php(517): WP_Hook->do_action() #11 /var/www/html/wp-includes/script-loader.php(2299): do_action() #12 /var/www/html/wp-includes/class-wp-hook.php(324): wp_enqueue_scripts() #13 /var/www/html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #14 /var/www/html/wp-includes/plugin.php(517): WP_Hook->do_action() #15 /var/www/html/wp-includes/general-template.php(3192): do_action() #16 /var/www/html/wp-content/plugins/oxygen/component-framework/oxygen-main-template.php(10): wp_head() #17 /var/www/html/wp-includes/template-loader.php(106): include('…') #18 /var/www/html/wp-blog-header.php(19): require_once('…') #19 /var/www/html/index.php(17): require('…') #20 {main} thrown in /var/www/html/wp-content/plugins/cp-booking-extn/templates/single-product/add-to-cart/booking-form/dates/start-date.php on line 14
Now I get above error
> **`Undefined variable $product`** and
> **`Call to a member function get_slug() on null`**
…means the template file is **expecting a `$product` object**, but it's not being passed in your override file inside the plugin (`cp-booking-extn`).
—
### ✅ How YITH Loads Templates
YITH uses their own loader `yith_booking_get_template()` which sometimes passes local variables like `$product` (or others) to the template via `extract()`.
When you override that template **outside of their control**, like from a plugin using `wc_get_template()`, those variables **may not be available**.
—
### ✅ Solution
You need to **manually pass** the variables expected by the original template.
#### 🩹 Fix Option 1: Manually Set `$product` in Your Template
In your plugin template `start-date.php`, add this at the top **only if `$product` is not defined**:
<?php
if ( ! isset( $product ) || ! $product instanceof WC_Product ) {
global $product;
}
?>> This ensures `$product` is available if it's not already passed in.
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#### ✅ Recommended Fix: Update Your Filter Function to Use `yith_booking_get_template()` Instead of `wc_get_template()`
Inside your plugin’s override function (`cp_override_yith_booking_template`), don’t just return the path — instead, use the original function to load it, keeping all variable context:
Update the filter to this:
add_filter('yith_booking_locate_template', 'cp_booking_extn_override_yith_template', 10, 3);
function cp_booking_extn_override_yith_template($located, $template_name, $template_path) {
$custom_template = plugin_dir_path(__FILE__) . 'templates/yith-woocommerce-booking/' . $template_name;
if (file_exists($custom_template)) {
return $custom_template;
}
return $located;
}This filter (`yith_booking_locate_template`) is better than `yith_booking_template_path`, as it lets **YITH handle variable passing internally**.
—
### ✅ Summary of Fix
| Issue | Fix |
|——|—–|
| `$product` undefined in overridden template | Use `global $product` at top of file |
| Better template override method | Use `yith_booking_locate_template` filter instead of `yith_booking_template_path` |
| Template location | Must match original structure under `/templates/` |
—
Let me know if you’d like me to rewrite the exact override code for `start-date.php` with a fallback, or if you're overriding other templates too.
✅ `yith_booking_locate_template` **does not exist** as a filter — I appreciate your correction.
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### ✅ Final Working Approach to Safely Override YITH Booking Templates from a Plugin (`cp-booking-extn`)
We’ll do 2 things:
1. ✅ Safely override the template **path** using the correct filter.
2. ✅ Ensure the required `$product` variable is available in your overridden file.
—
### ✅ Step 1: Use the Correct Filter (`yith_booking_template_path`)
Inside your `cp-booking-extn.php` plugin file:
add_filter('yith_booking_template_path', 'cp_booking_extn_template_override', 10, 3);
function cp_booking_extn_template_override($located, $template_name, $template_path) {
$custom_template = plugin_dir_path(__FILE__) . 'templates/yith-woocommerce-booking/' . $template_name;
if (file_exists($custom_template)) {
return $custom_template;
}
return $located;
}> ✅ This tells YITH to use your plugin’s override if available.
—
### ✅ Step 2: Ensure `$product` Is Available in the Template
In your overridden template file:
cp-booking-extn/templates/yith-woocommerce-booking/single-product/add-to-cart/booking-form/dates/start-date.phpAdd this at the top of the file to safely use `$product`:
<?php
if ( ! isset( $product ) || ! is_a( $product, 'WC_Product' ) ) {
global $product;
}
?>This allows it to fallback to the global product if not passed by the loader.
—
### ✅ Folder Structure Recap
cp-booking-extn/
├── cp-booking-extn.php
└── templates/
└── yith-woocommerce-booking/
└── single-product/
└── add-to-cart/
└── booking-form/
└── dates/
└── start-date.php—
### ✅ Optional Debug Check
You can temporarily add a debug line to ensure your file is being used:
<?php
echo '<!-- custom start-date.php loaded -->';Then inspect the page source.
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Let me know if you want to override multiple templates or pass other data like `$args`, `$booking_form`, etc. I can help you handle those safely too.
—
## ✅ Why It's Not Working
The YITH Booking plugin **does not provide a WordPress filter** like `yith_booking_template_path` or `yith_booking_locate_template` for you to hook into the template system **like WooCommerce does**.
Instead, it uses a private function:
YITH_WCBK()->template->get_template( $template_path );So to override the template location **from a plugin**, we must use **WooCommerce’s built-in template override filter** and handle the template matching **ourselves**.
—
## ✅ Final Working Solution (Clean Plugin-Based Override)
### 🔧 1. Use `woocommerce_locate_template` to Intercept Template Loading
In your `cp-booking-extn.php` file:
add_filter('woocommerce_locate_template', 'cp_booking_extn_override_yith_booking_template', 10, 3);
function cp_booking_extn_override_yith_booking_template($template, $template_name, $template_path) {
$plugin_template_dir = plugin_dir_path(__FILE__) . 'templates/yith-woocommerce-booking/';
// Only override YITH Booking templates
if (strpos($template_name, 'single-product/add-to-cart/booking-form/') !== false) {
$custom_template = $plugin_template_dir . $template_name;
if (file_exists($custom_template)) {
return $custom_template;
}
}
return $template;
}—
### 📁 2. Directory Structure in Your Plugin
cp-booking-extn/
├── cp-booking-extn.php
└── templates/
└── yith-woocommerce-booking/
└── single-product/
└── add-to-cart/
└── booking-form/
└── dates/
└── start-date.php—
### 🔒 3. Fix `$product` Is Not Defined Error
At the top of `start-date.php` in your plugin:
<?php
if (!isset($product) || !is_a($product, 'WC_Product')) {
global $product;
}
?>—
## ✅ Summary
| Step | Description |
|——|————-|
| 1 | Hook into `woocommerce_locate_template` to override template loading |
| 2 | Create your own template folder structure inside the plugin |
| 3 | Use `global $product` as a fallback in template |
| 4 | Test by editing and adding debug text in the file |
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Let me know which other YITH Booking template(s) you need to override, or if you'd prefer to do this from a theme instead. I can help you structure a full override strategy.