first commit

wp-content/plugins/mailchimp-for-wp/includes/admin/migrations/3.0.0-widget-base-id.php

@@ -0,0 +1,39 @@
+<?php
+
+defined('ABSPATH') or exit;
+
+$section_widgets = get_option('sidebars_widgets', array());
+$replaced        = false;
+
+foreach ($section_widgets as $section => $widgets) {
+    // WP has an "array_version" key that is not an array...
+    if (! is_array($widgets)) {
+        continue;
+    }
+
+    // loop through widget ID's
+    foreach ($widgets as $key => $widget_id) {
+        // does this widget ID start with "mc4wp_widget"?
+        if (strpos($widget_id, 'mc4wp_widget') === 0) {
+            // replace "mc4wp_widget" with "mc4wp_form_widget"
+            $new_widget_id                       = str_replace('mc4wp_widget', 'mc4wp_form_widget', $widget_id);
+            $section_widgets[ $section ][ $key ] = $new_widget_id;
+            $replaced                            = true;
+        }
+    }
+}
+
+
+// update option if we made changes
+if ($replaced) {
+    update_option('sidebars_widgets', $section_widgets);
+}
+
+// update widget options
+$options = get_option('widget_mc4wp_widget', false);
+if ($options) {
+    update_option('widget_mc4wp_form_widget', $options);
+
+    // delete old option
+    delete_option('widget_mc4wp_widget');
+}