Ninja Forms – change redirect URL based on API response?

Question

Ninja Forms – change redirect URL based on API response?

anu

2022年4月11日 21:08

How can we change the redirect_url for a redirect action based on the response from an API?

I have created a custom action (extending NF_Abstracts_Action ) that runs during submission with late timing and calls an external API.

Based on that response I want to change the page being redirected to. I cam get the actions with NinjaForms()-form(2)-get_actions(), but changing the redirect_url of the redirect action in that array doesn’t alter the current flow.

Alternatively how can I send a querystring containing data from the API to the redirected page?

Also tried an alternate approach, of redirecting inside a WP Hook action

function ninja_test_action($form_data) {
    error_log('inside wp hook action - about to redirect');
    wp_redirect('https://wp.test');
}
add_action('ninja_test_action', 'ninja_test_action',10,1);

This fails with a console error: TypeError: Cannot read properties of undefined (reading 'nonce')

This testing is being performed on a fresh and clean install of WordPress 5.9 using a clean Underscores theme and only the Ninja Forms plugin installed.

Topic plugin-ninja-forms Wordpress

Category Web

anu · Accepted Answer · 2022年4月11日 21:08

So, the way I've ended up doing this is as follows. It's probably not the optimal way but I can't find a way to change the submission data during the submission workflow (the redirect action always seems to read the original entered data). Basically, the key hook is ninja_forms_run_action_settings where you can filter $action_settings which contains the redirect url.

In my Action class:

class CustomProcessing extends NF_Abstracts_Action {

private string $_redirect_url;

   public function __construct()
    {

        parent::__construct();
        $this->_nicename = 'Custom Process';


        add_filter( 'ninja_forms_run_action_settings', [ $this, 'changeRedirectURL' ], 10, 4 );
    }


    public function process( $action_id, $form_id, $data ) {

    // code to call API endpoint

    // set redirect url on response from API
    if ( 201 === $response[ 'response' ][ 'code' ] ) {
        $this->_redirect_url = $body_url;
    }

    return $data

}


    public function changeRedirectURL( $action_settings, $form_id, $action_id, $form_settings )
    {

        if ( '<redirect action name>' === $action_settings[ "label" ] ) {
            $action_settings[ 'redirect_url' ] = $this->_redirect_url;
        }

        return $action_settings;
    }


}

ScottM · Accepted Answer · 2022年4月4日 20:35

I recommend deleting the redirect action for the form, then in your code for the custom action that is run at the time of form submission to interact with the API, you can use wp_redirect() to redirect the user to the expected page.

Also, you can add any necessary parameters to the redirect URL passed to wp_redirect().

Check out the WP code reference on wp_redirect().

Ninja Forms – change redirect URL based on API response?

About