Enhance order meta viewer

Author: johnoconnor0

includes/class-wc-utils-features.php

@@ -12,6 +12,8 @@ public function __construct() {
         add_filter( 'wc_order_statuses', array( $this, 'register_order_status' ) );
         add_action( 'init', array( $this, 'add_order_status' ) );
         add_action( 'add_meta_boxes', array( $this, 'add_order_meta_box' ) );
+        add_action( 'admin_post_wc_utils_add_meta', array( $this, 'handle_add_meta' ) );
+        add_action( 'admin_post_wc_utils_delete_meta', array( $this, 'handle_delete_meta' ) );
     }
 
     /**
@@ -73,8 +75,96 @@ public function render_order_meta_box( $post ) {
         foreach ( $order->get_meta_data() as $meta ) {
             $key   = esc_html( $meta->key );
             $value = maybe_serialize( $meta->value );
-            echo '<tr><th style="width:200px">' . $key . '</th><td>' . esc_html( $value ) . '</td></tr>';
+            echo '<tr><th style="width:200px">' . $key . '</th><td>' . esc_html( $value );
+            if ( 0 !== strpos( $meta->key, '_' ) ) {
+                $delete_url = wp_nonce_url(
+                    add_query_arg(
+                        array(
+                            'action'   => 'wc_utils_delete_meta',
+                            'order_id' => $order->get_id(),
+                            'meta_key' => rawurlencode( $meta->key ),
+                        ),
+                        admin_url( 'admin-post.php' )
+                    ),
+                    'wc_utils_delete_meta_' . $order->get_id()
+                );
+                echo ' <a href="' . esc_url( $delete_url ) . '" class="button-link delete-meta">' . esc_html__( 'Delete', 'woocommerce-utils' ) . '</a>';
+            }
+            echo '</td></tr>';
         }
         echo '</tbody></table>';
+
+        echo '<h4>' . esc_html__( 'Add Meta', 'woocommerce-utils' ) . '</h4>';
+        echo '<form method="post" action="' . esc_url( admin_url( 'admin-post.php' ) ) . '">';
+        wp_nonce_field( 'wc_utils_add_meta_' . $order->get_id() );
+        echo '<input type="hidden" name="action" value="wc_utils_add_meta" />';
+        echo '<input type="hidden" name="order_id" value="' . esc_attr( $order->get_id() ) . '" />';
+        echo '<p><label>' . esc_html__( 'Meta Key', 'woocommerce-utils' ) . '<br />';
+        echo '<input type="text" name="meta_key" /></label></p>';
+        echo '<p><label>' . esc_html__( 'Meta Value', 'woocommerce-utils' ) . '<br />';
+        echo '<textarea name="meta_value" rows="2" cols="40"></textarea></label></p>';
+        echo '<p><input type="submit" class="button" value="' . esc_attr__( 'Add Meta', 'woocommerce-utils' ) . '" /></p>';
+        echo '</form>';
+    }
+
+    /**
+     * Handle adding custom meta data.
+     */
+    public function handle_add_meta() {
+        if ( empty( $_POST['order_id'] ) || ! isset( $_POST['meta_key'], $_POST['meta_value'] ) ) {
+            wp_safe_redirect( wp_get_referer() );
+            exit;
+        }
+
+        $order_id = absint( $_POST['order_id'] );
+        if ( ! current_user_can( 'edit_shop_order', $order_id ) ) {
+            wp_die( esc_html__( 'Insufficient permissions.', 'woocommerce-utils' ) );
+        }
+
+        check_admin_referer( 'wc_utils_add_meta_' . $order_id );
+
+        $key   = sanitize_text_field( wp_unslash( $_POST['meta_key'] ) );
+        $value = wp_unslash( $_POST['meta_value'] );
+
+        if ( '' !== $key && 0 !== strpos( $key, '_' ) ) {
+            $order = wc_get_order( $order_id );
+            if ( $order ) {
+                $order->add_meta_data( $key, $value, false );
+                $order->save();
+            }
+        }
+
+        wp_safe_redirect( wp_get_referer() );
+        exit;
+    }
+
+    /**
+     * Handle deletion of custom meta data.
+     */
+    public function handle_delete_meta() {
+        if ( empty( $_GET['order_id'] ) || empty( $_GET['meta_key'] ) ) {
+            wp_safe_redirect( wp_get_referer() );
+            exit;
+        }
+
+        $order_id = absint( $_GET['order_id'] );
+        if ( ! current_user_can( 'edit_shop_order', $order_id ) ) {
+            wp_die( esc_html__( 'Insufficient permissions.', 'woocommerce-utils' ) );
+        }
+
+        check_admin_referer( 'wc_utils_delete_meta_' . $order_id );
+
+        $meta_key = sanitize_text_field( wp_unslash( $_GET['meta_key'] ) );
+
+        if ( 0 !== strpos( $meta_key, '_' ) ) {
+            $order = wc_get_order( $order_id );
+            if ( $order ) {
+                $order->delete_meta_data( $meta_key );
+                $order->save();
+            }
+        }
+
+        wp_safe_redirect( wp_get_referer() );
+        exit;
     }
 }