first commit

wp-content/plugins/mailchimp-for-wp/includes/admin/migrations/3.0.0-form-3-messages.php

@@ -0,0 +1,41 @@
+<?php
+defined( 'ABSPATH' ) or exit;
+
+// find all form posts
+$posts = get_posts(
+	array(
+		'post_type'   => 'mc4wp-form',
+		'post_status' => 'publish',
+		'numberposts' => -1,
+	)
+);
+
+// set form message texts
+$message_keys = array(
+	'text_subscribed',
+	'text_error',
+	'text_invalid_email',
+	'text_already_subscribed',
+	'text_required_field_missing',
+	'text_unsubscribed',
+	'text_not_subscribed',
+);
+
+foreach ( $posts as $post ) {
+	$settings = get_post_meta( $post->ID, '_mc4wp_settings', true );
+
+	foreach ( $message_keys as $key ) {
+		if ( empty( $settings[ $key ] ) ) {
+			continue;
+		}
+
+		$message = $settings[ $key ];
+
+		// move message setting over to post meta
+		update_post_meta( $post->ID, $key, $message );
+		unset( $settings[ $key ] );
+	}
+
+	// update post meta with unset message keys
+	update_post_meta( $post->ID, '_mc4wp_settings', $settings );
+}