Need help getting cat ID inside wpcf7_mail_components

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(@geertvanderheide)

I’ve been using the wpcf7_mail_components filter to modify the recipient of a form dynamically. It’s based on a custom field set for the post or page where the form is sent from. I’m extracting the post ID with wpcf7_special_mail_tag(). This works well if the form is used on any post or page, but it fails when used on a category page. I have the custom field set up for both pages / posts and categories, and I need the form to work on both.

My question: how do I find the ID of the category page that the form is sent from?

Code:

function set_question_form_recipient($components, $form, $object) {
  if ($form->id() == 102) :
    // Get the post ID
    $post_id = wpcf7_special_mail_tag('', '_post_id');
  
    // Get the recipient e-mail address from an Advanced Custom Field
    $recipient_email = get_field( 'name_of_acf_field', $post_id );

    // Here I need a solution for finding the category page ID, if the form was sent from a category page. From there I can find the category custom field to set the recipient.

    if ($recipient_email) :
      // Set the recipient
      $components['recipient'] = $recipient_email;
    endif;
  endif;
  
  // Return the modified array
  return $components;
}
add_filter('wpcf7_mail_components', 'set_question_form_recipient', 10, 3);

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Thread Starter geertvanderheide
(@geertvanderheide)

9 years, 3 months ago
Found an answer to my own question. To anyone who needs the category page ID that a form was sent from, inside the wpcf7_mail_components filter, this could be useful. It requires that you’ve set a category base in the permalinks. In this example, the category base is “category”.
```
$url = wpcf7_special_mail_tag('', '_url');
$cat_base = '/category/';
  
if (strpos($url, $cat_base) !== false) :
  $cat_slug = substr($url, strpos($url, $cat_base) + strlen($cat_base));
  if ($cat_slug) :
    $cat = get_term_by('slug', $cat_slug, 'category');
    $cat_id = $cat->term_id;
  endif;
endif;
```

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