Hook post update not found

Question

I have a problem with the drush updb command which does not find the hook post updates of my custom module. I noticed that the module install saves the module's name string here in database, table "key_value", in BLOB file.

Table key_value : BLOB file :

My post update in mymodule.post_update.php :

As it is present in the database, the command seems to consider that the hooks are executed when not. Is there a trick or something missing to solve this problem? My site is in 9.5.4.

Answer 1

Sounds like you want to run update hooks on a newly installed module. Then you should use deploy hooks. Other then update and post-update hooks they run also for newly installed modules. The only requirement is you run drush deploy:hook during your deployment routine or simply switch from drush updb to drush deploy which also contains drush updb and drush deploy:hook already and runs everything in the right order.

(drush cim will enable the module and in the end drush deploy:hook will pick the deploy hooks up.)

Create a file MYMODULE.deploy.php and inside there put MYMODULE_deploy_NAME(&$sandbox) and go.

Answer 2

Any update function listed in existing_updates has already been executed, and Drupal won't execute it again (post-update hooks typically operate on content, and you don't want to run those sorts of updates twice unintentionally).

If you're confident that executing the contents of that function is the right solution to your problem, then just change the function name to something that hasn't been executed before.