edit $_POST values before posting into database

The default category topic may be enough for the code example. You might checkout the documentation.

can u tell me, why it works with $_POST and not with the parameter $postarr?

function wpuf_editpostdata( $postarr ) {

$_POST[‘Preis’] = str_replace(“,”, “.”, $_POST[‘Preis’]);
$_POST[‘Stattpreis’] = str_replace(“,”, “.”, $_POST[‘Stattpreis’]);
array_push($_POST[‘Kategorie’], “1”);

return $postarr;
}

add_filter( ‘wpuf_add_post_args’, ‘wpuf_editpostdata’ );

it is possible to print_r in functions? every time i try to print_r an array like postarr, the site ist loading and loading 😉

and i try in that line: array_push($_POST[‘Kategorie’], “1”); to add the category id 1 to the category array..it does’t work. which function i have to choose?

wpuf_add_post_args filter is for modifying the wp_insert_post() variables, those are standard post_status, post_title, post_content etc. So in your case, it’s not the suitable place for adding filter. You need to add action on wpuf_add_post_after_insert and update the meta fields.

If you are printing something, that means it’s modifying the ajax response. And that breaks the JSON response, so it keeps loading.

like that?

function wpuf_editpostdata( $form_vars ) {

$form_vars[‘Preis’] = str_replace(“,”, “.”, $form_vars[‘Preis’]);
$form_vars[‘Stattpreis’] = str_replace(“,”, “.”, $form_vars[‘Stattpreis’]);

return $form_vars;
}

add_filter( ‘wpuf_add_post_after_insert’, ‘wpuf_editpostdata’ );

but it didn’t work … $form_vars[‘Preis’] & $form_vars[‘Stattpreis’] are costum fields of the form.

can u show me how the $form_vars oder $form_settings array is build?

Here is the correct approach:
[php]
function wpufe_edit_postdata( $post_id ) {
if ( isset( $_POST[‘Preis’] ) ) {
$replaced = str_replace( ‘,’, ‘.’, $_POST[‘Preis’]);
update_post_meta( $post_id, ‘Preis’, $replaced );
}
}

add_action( ‘wpuf_add_post_after_insert’, ‘wpufe_edit_postdata’ );
[/php]

The difference between action and filter is, action doesn’t need/care about return value where filter is for modifying the value and return it. wpuf_add_post_after_insert is an action and your custom field is already saved before calling this action. As you have the access to $_POST value, so you replace your data and update the meta again.

thx for the great support and the best form plugin for wp 😉