Drupal is a popular and best content management system. Even it is more powerful, and sometimes we have to deal with a tough time if we are not maintaining it well.
Here we see one of the issues that can happen in Drupal 8 if we do not correctly uninstall module before it removes from the file system. Your site might be working correctly on the production server, and the issues can arise after you move your site into a new server or after setup your local dev environment.
In Drupal 7. It was easy to move a Drupal module from installed path to another folder. Let us see how we can do the same in Drupal 8.
It may feel crazy to build a module without module file in drupal. But in drupal 8 it is possible. Which means module file is not a mandatory entity in drupal. Instead of writing everything inside module file drupal 8 will make your code more structured by using classes and objects.
Today we are going to create a smile module which creates a sample page using custom menu callback.
First let us list down the steps to create this module in drupal 7: