wordpress - Update a custom-field by another custom-field -

iam working lots of custom_fields in wordpress.

currently iam working woocommerce, dont know if question wp or woo related.

i have 1 custom-field setup select box. can choose between several items such as:

1. new
2. in_stock
3. sold_out

when select "sold_out" , save post/product, not want save field, want set "_stock_status" "outofstock".

the field "_stock_status" default woocommerce field. drop-down box. can select values "instock" or "outofstock".

the thing iam working woocommerce save function, called, woocommerce_process_product_meta.

i thought run 2 update_post_meta function. doesnt work.

i tried following, testing, check if custom-field not empty. if not empty update selected value, , update "_stock_status".

$woocommerce_select = $_post['_my_custom_field'];  if( !empty( $woocommerce_select ) ) {        update_post_meta( $post_id, '_my_custom_field', esc_attr( $woocommerce_select ) );        update_post_meta( $post_id, '_stock_status', 'outofstock' ); } 

with function can save _my_custom_field, _stock_status dont change.

i tried variations of this, , other if-functions. seems cant update field way.

$woocommerce_select = $_post['_my_custom_field'];  if( $woocommerce_select == 'sold_out' ) {                update_post_meta( $post_id, '_my_custom_field', esc_attr( $woocommerce_select ) );                update_post_meta( $post_id, '_stock_status', 'outofstock' ); } else {                update_post_meta( $post_id, '_my_custom_field', esc_attr( $woocommerce_select ) ); } 

dont know iam doing wrong here, maybe can point me it.

thanks, mo

---

update: function/hook added:

function woo_add_custom_general_fields_save( $post_id ){  $woocommerce_select = $_post['_my_custom_field'];  if( !empty( $woocommerce_select ) ) {        update_post_meta( $post_id, '_my_custom_field', esc_attr( $woocommerce_select ) );        update_post_meta( $post_id, '_stock_status', 'outofstock' ); }  } add_action( 'woocommerce_process_product_meta', 'woo_add_custom_general_fields_save', 999 );  

i tried lower or no priority.

this how create custom field:

function woo_add_custom_general_fields() {  global $woocommerce, $post; ?>  <div class="options_group">         <p class="form-field custom_stock">             <label for="custom_stock"><?php echo __( 'custom stock', 'aat-net-theme' ); ?></label>             <span class="wrap">                 <?php $custom_stock = get_post_meta( $post->id, '_my_custom_field', true ); ?>                   <select id="custom_stock" name="_my_custom_field">                     <option value="" <?php selected( $custom_stock, '' ); ?>> - select stock - </option>                     <option value="new" <?php selected( $custom_stock, 'new' ); ?>>new</option>                     <option value="in_stock" <?php selected( $custom_stock, 'in_stock' ); ?>>in stock</option>                     <option value="on_request" <?php selected( $custom_stock, 'on_request' ); ?>>on request</option>                     <option value="in_transit" <?php selected( $custom_stock, 'in_transit' ); ?>>in transit</option>                     <option value="not_available" <?php selected( $custom_stock, 'not_available' ); ?>>not available</option>                 </select>              </span>             <span class="description"><?php _e( 'select custom stock-status here.', 'aat-net-theme' ); ?></span>         </p>  <?php } add_action( 'woocommerce_product_options_general_product_data', 'woo_add_custom_general_fields' ); 

maybe helpfull else.

i tried many different things, @ point deactivated meta-box save function , fields still save without problem.

it seems problem caused using 2 default woocommerce actions create , save fields / meta-box.

add_action( 'woocommerce_process_product_meta'... 

and

add_action( 'woocommerce_product_options_general_product_data'... 

since couldnt find solution created normal wordpress meta-box this:

function lwsaat_custom_meta() {     add_meta_box(          'lwsaat_meta', // html 'id' attribute of edit screen section         __( 'heading', 'lwsaat-plugin' ), // title of edit screen section         'lwsaat_meta_callback', // function prints out html edit screen section         'product', // type of writing screen on show edit screen section         'normal', // part of page edit screen section should shown ('normal', 'advanced', or 'side')         'high' // priority within context boxes should show ('high', 'core', 'default' or 'low')     ); } add_action( 'add_meta_boxes', 'lwsaat_custom_meta' ); 

i created callback function so:

function lwsaat_meta_callback( $post ) {      wp_nonce_field( basename( __file__ ), 'lwsaat_nonce' );     $lwsaat_stored_meta = get_post_meta( $post->id );     ?>          <p class="form-field custom_stock">             <label for="custom_stock"><?php echo __( 'custom stock', 'lwsaat-plugin' ); ?></label>                 <?php $custom_stock = $lwsaat_stored_meta['_aat_stock_select'][0]; ?>                    <select id="custom_stock" name="_aat_stock_select">                     <option value="new" <?php selected( $custom_stock, 'new' ); ?>>new</option>                     <option value="in_stock" <?php selected( $custom_stock, 'in_stock' ); ?>>in stock</option>                     <option value="not_available" <?php selected( $custom_stock, 'not_available' ); ?>>not available</option>                     <option value="eu_no_import" <?php selected( $custom_stock, 'eu_no_import' ); ?>>import eu not allowed</option>                 </select>          </p>     <?php } 

and save function this:

function lwsaat_meta_save( $post_id ) {      // checks save status     $is_autosave = wp_is_post_autosave( $post_id );     $is_revision = wp_is_post_revision( $post_id );     $is_valid_nonce = ( isset( $_post[ 'lwsaat_nonce' ] ) && wp_verify_nonce( $_post[ 'lwsaat_nonce' ], basename( __file__ ) ) ) ? 'true' : 'false';      // exits script depending on save status     if ( $is_autosave || $is_revision || !$is_valid_nonce ) {         return;     }       // save custom stock select     $custom_stock = $_post[ '_aat_stock_select' ];      if( $custom_stock == 'new' ) {          update_post_meta( $post_id, '_aat_stock_select', $_post[ '_aat_stock_select' ] );         update_post_meta( $post_id, '_stock_status', 'instock' );      } elseif ( $custom_stock == 'not_available' ) {          update_post_meta( $post_id, '_aat_stock_select', $_post[ '_aat_stock_select' ] );         update_post_meta( $post_id, '_stock_status', 'outofstock' );      } else {         update_post_meta( $post_id, '_aat_stock_select', $_post[ '_aat_stock_select' ] );     } } add_action( 'save_post', 'lwsaat_meta_save' ); 

with code can resave product stock along custom field. not possible me native woocoommerce functions.