There’s no error message, but the value remains whatever it was before. I can change it to another non-zero value but not zero.

I have the error isolated on a test site; would you like access to it?

Kevin explained that because a form can now create multiple objects, the ID field doesn’t work any more. He suggested using a couple of hooks to grab the ID and stick it into the redirect URL. Here are the functions that did the job. (If you’re not doing a redirect, you’ll just need the first one.)

add_action( 'piklist_save_field-post', 'my_grab_new_post_id' );
function my_grab_new_post_id ( $fields ) {
	global $mcw_new_post_id;
	$my_new_post_id = $fields['ID']['object_id'];
}

add_filter( 'wp_redirect', 'my_stick_new_post_id_in_redirect', 10, 2 );
function my_stick_new_post_id_in_redirect ( $location, $status ) {
	global $my_new_post_id;
	return( $location."?ID=$my_new_post_id" );
}

I just simplified the form as it had a lot of code used to figure out what the ticketable events are:

<?php
/*  
Title: Test Order Form
Method: post
Message: Data saved as a post of type ticket.
*/

// Set where to save this form
piklist('field', array(
	'type' => 'hidden',
	'scope' => 'post',
	'field' => 'post_type',
	'value' => 'ticket',
));

piklist('field', array(
	'type' => 'hidden',
	'scope' => 'post',
	'field' => 'post_status',
	'value' => 'draft',
));

// Collect information
piklist('field', array(
	'type' => 'text',
	'scope' => 'post', // post_title is in the wp_posts table
	'field' => 'post_title',
	'label' => 'Name',
	'columns' => 10,
	'required' => true
));

piklist('field', array(
	'type' => 'text',
	'scope' => 'post_meta',
	'field' => 'phone',
	'label' => 'Phone',
	'columns' => 10,
	'required' => true,
));

// New post ID
piklist('field', array(
	'type' => 'hidden',
	'field' => 'ID',
	'scope' => 'post',
	'required' => false,
));

// Submit button
piklist('field', array(
	'type' => 'submit',
	'field' => 'submit',
	'value' => 'Review Order',
	'attributes' => array(
		'class' => 'btn btn-default',
	),
));

Thanks, Steve! Tested v1.9.4 and it’s fixed the problem.

Donna

I tried to fix this using Piklist sanitization. The function named in the piklist_sanitization_rules filter (mcw_sanitize_shortcode) was called, but the callback function (mcw_sanitize_shortcode_callback) never got executed.

Did I do something wrong? Or does the shortcode interface not support sanitization rules?

I created these filters and functions:

/**
   keep shortcodes from barfing on " [ ] chars
 */
add_filter( 'piklist_sanitization_rules', 'mcw_sanitize_shortcode', 11 );
function mcw_sanitize_shortcode ( $sanitization_rules ) {
   $sanitization_rules['mcw_shortcode'] = array(
      'callback' => 'mcw_sanitize_shortcode_callback'
   );
   return $sanitization_rules;
}
 
function mcw_sanitize_shortcode_callback ( $value, $field, $options ) {   
   $reserved_chars = array( '"', '[', ']' );
   $encoded_chars = array( '"', '[', ']' );
   $return = str_replace( $reserved_chars, $encoded_chars, $value );
   return $return;
}

function mcw_restore_shortcode_chars ( $encoded_value ) {   
   $encoded_chars = array( '"', '[', ']' );
   $reserved_chars = array( '"', '[', ']' );
   return str_replace( $encoded_chars, $reserved_chars, $encoded_value );
}

And here’s my shortcode form:

<?php
/*
Name: Two-Column Section
Description: Create a 2-column section inside a page. 
Shortcode: mcw-2column
Icon: dashicons-controls-pause
*/
 
piklist('field', array(
	'type' => 'editor',
	'field' => 'col_left',
	'label' => 'Content for left column',
	'columns' => 12,
	'options' => array (
		'media_buttons' => false,
		'teeny' => true,
	),
	'sanitize' => array(
		array(
			'type' => 'mcw_shortcode',
		),
	),
));

piklist('field', array(
	'type' => 'editor',
	'field' => 'col_right',
	'label' => 'Content for left column',
	'columns' => 12,
	'options' => array (
		'media_buttons' => false,
		'teeny' => true,
	),
	'sanitize' => array(
		array(
			'type' => 'mcw_shortcode',
		),
	),
));

and the shortcode output:

<?php
/*
Shortcode: mcw-2column
*/

	$left = apply_filters( 'the_content', mcw_restore_shortcode_chars( $col_left ) );
	$right = apply_filters( 'the_content', mcw_restore_shortcode_chars( $col_right ) );
?>
<div class="two-column row">
	<div class="col-sm-6">
		<?php echo $left; ?>
	</div>
	<div class="col-sm-6">
		<?php echo $right; ?>
	</div>
</div>

Thanks,
Donna

The problem also occurs with square brackets.