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Generating multiple forms on the same page (and saving them)

  • I’m currently working on adding some ACF custom fields to Woocommerce products variations.

    I use ACF with the product (adding a sidebar video, a GPS location, etc.)
    I need (short of a proper “travel management” plugin for WooCommerce) to use ACF with the product_variation(s)

    So I read http://www.advancedcustomfields.com/resources/acf_form/ and manage to get the form on each variation.
    On the same page,
    there is a ‘product’ post_id + an ACF form with field group for ‘product’
    and several ‘product_variation’ post_id + an ACF form for ‘product_variation’ > there is multiple forms

    The form seems to work ok, I can input values.
    But there is two problems :

    1 / All html input for the same field (like “departure_date”) have the same id (like [field_548c7a7d6f6d8] ), which mean all the values are not send to $_POST (only the last one for each field id)
    2 / When saving, all the fields are saved on the main product post_id

    Have you any advice on how to solve this ?
    Right now, I’m looking at :
    – ajax generate and save the product variation ACF form
    – coding the back-end part by hand, only using ACF for front-end

  • i have done it before , but i don’t remember exactly how 😀
    i think you should set ‘form’ attribute to ‘false’ and then at the end of the page add a custom submit button , like this 

    <?php
acf_form(array(
	'post_id' => $post_id,
	'form' => false,
	'field_groups' => array(397),
	'return' => add_query_arg( array( 'post_id' => $post_id, 'updated' => 'true'), get_permalink() ),
));

acf_form(array(
	'post_id' => $post_id,
	'form' => false,
	'field_groups' => array(397),
	'return' => add_query_arg( array( 'post_id' => $post_id, 'updated' => 'true'), get_permalink() ),
));
?>

<input type="submit" value="send">

    you should use your own $post_id and "field_groups"
    i hope this will help

  • Right now, I’m using :

      acf_form(array(
      'post_id' => $variation_id,
      'form' => false,
      'label_placement' => 'top',
      'instruction_placement' => 'label',
      ));

    ‘return’ didn’t change the behaviour.

    If you can dig up the solution you came with at the time, I will be very interested 🙂

    I know ACF is working, since I can use /wp-admin/post.php?post=<product_variation_id>&action=edit&message=1 , edit the ACF fields, save them, it works ok. Opening the product edit form next, I find the product_variation fields updated. But can’t save them on this page.

    Another alternative : creating the product_variations on the page but forcing the user to edit them on another page (a product_variation edit page)

  • Maybe i can help you if i see your full code

  • Full code for the plugin is :
    http://pastebin.com/frdtEn1n

    Screenshot of the product_variation tab :
    http://i.imgur.com/r38fM0e.png (the 4 fields in bold are ACF)

  • I tried your code with a little bit changes and it’s working,
    I think you have missed 'field_groups' => array(YOUR_FIELD_GROUP_ID), in your acf_form() , Try adding the id of your field group to the acf_form()

    <?php
function woocommerce_variation_options_acf_form($loop, $variation_data, $variation) {
  add_action('admin_head','acf_form_head',20);
  $variation_id = $variation->ID;
  
  ?>
  <tr><td colspan="2">
  <style>
  table.data_table td #poststuff { padding: 0; min-width: 1em;}
  table.data_table td .postbox { min-width: 1em;}
  table.data_table td div.acf_postbox div.field_type-true_false p.label { display: inline; }
  table.data_table td div.acf_postbox div.field_type-true_false ul {display: inline-block;}
  #variable_product_options .woocommerce_variation table td input[type='checkbox'] { min-width: 1em!important;}
  </style>
  
  <?php
  acf_form(array(
      'post_id' => $variation_id,
      'form' => false,
      'label_placement' => 'top',
      'instruction_placement' => 'label',
	  'field_groups' => array(28),
      'return' => add_query_arg( array( 'post_id' => $post_id, 'updated' => 'true'), get_permalink() ),
      ));
 // var_dump(  $variation_id  );
      ?>
      <script type="text/javascript">
(function($) {
  // setup fields
  acf.do_action('append', $('#popup-id'));
})(jQuery); 
</script>
</td></tr>
<?php

}
add_action('admin_head','acf_form_head',20);
add_action('woocommerce_product_after_variable_attributes','woocommerce_variation_options_acf_form',99);

/**
In WooCommerce : includes/admin/meta-boxes/views/html-variation-admin.php
*/
 do_action( 'woocommerce_product_after_variable_attributes', $loop, $variation_data, $variation ); ?>

    try this and use your own field group id instead of ’28’ in 'field_groups' => array(28)

  • field_groups : I suppose it’s the post_id from the acf field group (574)
    tried it with no change : all the fields have the same id
    and behaviour didn’t change.

    <input type="text" id="acf-field-commentaire" class="text" name="fields[field_548c7eddacf04]" value="" placeholder=""> on every variation

  • Oh , you’re right , i tried it only for one variation , since we’re dealing with variable product then field ids should be different.
    My guess is you should do it dynamically some how
    I mean you should create dynamic custom fields which is not possible with ACF (normally).
    What you’re trying to do requires some programming. my solution to this is :
    add an html field to variations box like this :
    <input type="text" name="myfield_<?php echo $variation_id; ?>">
    in this way all fields combine with $variation_id so they wont be the same any more
    And to save the fields you can use save_post action
    http://codex.wordpress.org/Plugin_API/Action_Reference/save_post

    I hope this will help

  • I could work on core/api.php : acf_form()

    // load fields
$fields = apply_filters('acf/field_group/get_fields', array(), $acf['id']);

    to modify the fields keys

    There is a hook in acf.php : save_post() :
    do_action('acf/update_value', $v, $post_id, $f );
    I probably won’t be able to prevent the product_variation meta to be linked the product, but I could ensure the meta value to be linked to the product_variation

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