How to add menu in Drupal?

To apply a patch in Drupal, follow the steps given below: Obtain the

.patch

file from Drupal's issue queue or the project page In your terminal, go to the directory where the module or theme you want to patch is located, e.g.,

cd /path/to/drupal/modules/contrib/my_module

Use the

git apply

command (recommended if you're using Git) or

 patch

command: For

Git 

For

 patch 

After applying the patch, clear Drupal’s cache to ensure changes take effect. You can do this via the admin interface or using Drush:

Verify that the patch resolves the issue or introduces the desired functionality.

To create a module in Drupal, follow the steps given below: Navigate to

modules/custom/

in your Drupal installation and create a new folder for your module. Example:

 my_module 

. Inside your module folder, create an info file,

my_module.info.yml

, which tells Drupal about your module:

Create a

my_module.module

file for your module's custom logic (if needed). This file can contain hook implementations. If your module needs custom routes (like for a page), create a

my_module.routing.yml

file:

If you added a route, create a controller in

src/Controller/MyModuleController.php

Go to the Extend menu in Drupal's admin dashboard, find your module, and enable it.

To create a custom module in Drupal, follow the steps given below: Inside the

modules/custom/ directory 

, create a folder for your module, e.g.,

my_custom_module 

. In your module folder, create a

.info.yml

file e.g.,

 my_custom_module.info.yml

with basic module details:

Create a

.module file

e.g.,

my_custom_module.module

where you can add custom PHP code and hooks. Go to the Extend menu in Drupal’s admin dashboard and enable your custom module. This is a basic setup. For more advanced features, you can create routing, controller, or service files.

To disable caching in Drupal, follow the steps given below: 

Copy the file

 /sites/example.settings.local.php 

to

 /sites/default/settings.local.php

In the

 settings.php 

file, uncomment the following line to include the settings file:

Ensure the following line is uncommented in

settings.local.php 

:

Disable CSS/JS aggregation by setting these configurations:

Disable render and dynamic page caching:

Ensure Twig debugging and caching are set correctly in

 development.services.yml 

:

This will disable caching and is ideal for development. However, remember to re-enable caching for production environments.

Drupal is written primarily in PHP.