How to use ajax to pass data to a ModuleAdminController?

[prak]

Hello, I have made an admin controller for my module and I wish to send some data to it using ajax. Is this possible?

 

If it is possible, how can I do that?

 

Help would be greatly appreciated.

[rocky]

Just add a function starting with process to your controller. For example:

    public function processRegenerate()
    {
        echo 'Regenerating...';
        die;
    }

Then simply add &action=regenerate to the end of your controller's URL to call the function. Change regenerate to any string that describes what your function is doing.

[prak]

Hello and thanks for the reply Rocky, I did not know that. Is there a similar way to send a value for a variable and access it using $_GET method in the controller and then display it in the view?

[rocky]

You can add more query strings to the URL and then access the data within the function. For example, if the query string is &action=regenerate&type=images:

public function processRegenerate()
{
    $type = Tools::getValue('type');
    echo $type;
​    die;
}

This will save "images" to the $type variable and then print it out. You can then read it from result function of the AJAX call.

[prak]

Thanks a lot rocky!!

[Estian]

Good day - 3 years later and I can not for the life of me get an ajax call to work.

PrestaShop: 1.7.6.5
Module: CustomModule

Ajax URL:
https://domain/module/CustomModule/CustomModuleOrderManagerController?action=productStockIssue&id_product=###&id_order=###&ajax=true

class CustomModuleOrderManagerController extends ModuleAdminController {
	public function processProductStockIssue() {
		$this->ajaxDie( Tools::jsonEncode( ['error' => 'This is a test 2.'] ) );
	}
}

Am I missing something? It just responds with 404 not found with everything that I try.

Edited October 21, 2020 by Estian
Incomplete (see edit history)

[Estian]

Turns out I had to register a "tab" (the controller name) for the controller in "installTab()" during module installation.