[Solved]How to debug none working Hooks?

[Inform-All]

I have a hook for one of my modules that worked just fine..
So my question is, how can i debug a not working hook?

use Doctrine\DBAL\Query\QueryBuilder;
use PrestaShop\PrestaShop\Core\Search\Filters\CustomerFilters;

public function install($delete_params = true)
{
	return parent::install() &&
            $this->registerHook('actionCustomerGridQueryBuilderModifier');
}

/**
 * @param array $params
 */
public function hookActionCustomerGridQueryBuilderModifier(array $params)
{
   # My Code
}

If i check the customer list using debug modus, the hook 'actionCustomerGridQueryBuilderModifier' is never hooked from my module.
But if i check 'Appearance > Positions' the hook is active!

How can i debug? Or what am i missing here?
 

Edited January 13, 2020 by Inform-All (see edit history)

[Inform-All]

4 minutes ago, ndiaga said:

Hi,

Try   to reset  your  module  and add it to that  manually from the positions.

Thank you for your answer!
I've tried this already, did not have a difference, any other ideas?

[Inform-All]

the  '$delete_params = true' was indeed not needed anymore, i've deleted it.

And i've tested to return anything before (like you advised 'It works') but nothing, this hook is just not called.
My debug mode does not even show it.

Edited January 13, 2020 by Inform-All (see edit history)

[Inform-All]

It's the correct hook name according to the docs. I use it to filter out certain customers.
Even if i look into the example docs it should be functioning.

And it does function, but i just have one customer where is does not work that's why i'm wondering how can i debug this?

[Inform-All]

11 minutes ago, ndiaga said:

If  it  works  for other  customers   verify  if the customer  that  it does not for  meet the filter  criterias. 

Thanks, what a rookie mistake! I fixed it.

For people in the future, this might help:
Make sure that if you are using 2 admin profiles, that BOTH profiles have access to the module to make the filter work that you install/use in a module.