Price field is empty in product edit mode

Hi Ikramy,

Have you tried disabling plugins to test? Do you perhaps have link to the site?

Hi Stephan,

Thanks for the quick response.

I just found that when I remove some code, it works fine.

I also noticed that when I remove the WP_Query from that code, it works fine. Seems that it is the cause of the problem but not sure why!!!

Code below:

<?php if(is_super_admin()): ?>
<?php
function add_meta_box_vendor() {
	$screens = array( 'product' );
	foreach ( $screens as $screen ) {
		add_meta_box(
			'vendor_sectionid',
			__( 'Vendor', 'vendor_textdomain' ),
			'vendor_callback',
			$screen,
            'side'
		);
	}
}

add_action( 'add_meta_boxes', 'add_meta_box_vendor' );

function vendor_callback( $post ) {
	wp_nonce_field( 'vendor_save_meta_box_data', 'vendor_nonce' );

	$value = get_post_meta( $post->ID, '_vendor_value_key', true );

    ?>
    <label for="vendor_field"></label>
    <?php

    $args = array(
        'post_type' => 'my_vendor'
    );
    $loop = new WP_Query( $args );
    while ( $loop->have_posts() ) : $loop->the_post();
    ?>
        <input type="radio" name="vendor_field" value="<?php echo $loop->post->ID; ?>" <?php if($loop->post->ID == $value){echo 'checked';} ?> /> <?php echo get_the_title($loop->post->ID); ?><br />
    <?php
    endwhile;
    wp_reset_query();

    ?>
    <?php
}

function vendor_save_meta_box_data( $post_id ) {
	if ( ! isset( $_POST['vendor_nonce'] ) ) {
		return;
	}

	if ( ! wp_verify_nonce( $_POST['vendor_nonce'], 'vendor_save_meta_box_data' ) ) {
		return;
	}

	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
		return;
	}

	if ( isset( $_POST['post_type'] ) && 'page' == $_POST['post_type'] ) {
		if ( ! current_user_can( 'edit_page', $post_id ) ) {
			return;
		}

	} else {
		if ( ! current_user_can( 'edit_post', $post_id ) ) {
			return;
		}
	}

	if ( ! isset( $_POST['vendor_field'] ) ) {
		return;
	}

    $str = $_POST['vendor_field'];
	$my_data = sanitize_text_field( $str );

	update_post_meta( $post_id, '_vendor_value_key', $my_data );
}
add_action( 'save_post', 'vendor_save_meta_box_data' );
?>

<?php endif; ?>

wp_reset_query will break others.

Hi Mike,

I tried removing the wp_reset_query but it didn’t make a difference!

Likely also due to $loop->the_post();. Can you avoid using that?

Mike, this is perfect. I just replaced WP_Query with the below and it worked.

Thanks Mike
ThanksStephan

<?php
    global $wpdb;
    $rows = $wpdb->get_results( "SELECT * FROM wp_posts where post_type = 'my_vendor'" );
    foreach($rows as $row){
    ?>
        <input type="radio" name="vendor_field" value="<?php echo $row->ID; ?>" <?php if($row->ID == $value){echo 'checked';} ?> /> <?php echo get_the_title($row->ID); ?><br />
    <?php
    }