Drupal - How can I re-install a module?

The Devel module can also help here.

It makes a "Reinstall modules" page available at /devel/reinstall, which lets you re-install modules in bulk.

It's also worth mentioning Drush; dis (obviously) doesn't work any more, but pm-uninstall and en still do. And if you have Devel installed, you can invoke a reinstall with

drush dre module1 module2

As you said "Disable functionality is removed from Drupal 8" ..

The short answer is - you probably are looking for the "Uninstall" tab found on the "Extend" (Modules) page /admin/modules/uninstall

There is no longer any grey area between a module being on and active vs off and "purged". "Disabled" is no longer a thing. Uninstalling a module means removing all traces of it.

Go to admin/modules/uninstall and uninstall module... Then enabled the module from modules list page. That should install the module again.

For Example ....

Before Installing Ban Module in Drupal 8 ... ban_ip module doesn't exist in database..

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After Installing Ban Module in Drupal 8... ban_ip table is created and module cannot be disabled but can be uninstalled in admin/modules/uninstall

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Now if you uninstall module.. Table will be removed from database and module can be installed again which will create tables in the database..

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Solution 1: Uninstall and Install again manually

Using the Drupal UI:

  • Go to the Extend page from the admin menu
  • Go to the uninstall module page
  • Uninstall the module you wish to
  • Go to the Extend page again (where you have a list of modules)
  • Install the module you just uninstalled

Using Drush (you should try it if you don't use it):

  • drush pm-uninstall MODULE -y && drush pm-enable MODULE -y
  • OR in short drush pmu MODULE -y && drush en MODULE -y

Replace MODULE with the name of your module.

Solution 2: Reinstall using Devel module

Assuming you have the devel module installed.

Using Drupal UI:

  • Visit the path /devel/reinstall
  • Re-install the modules you wish to

Using Drush:

  • drush devel-reinstall MODULE -y
  • OR in short drush dre MODULE -y

Replace MODULE with the name of your module.

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