first commit

wp-content/plugins/mailchimp-for-wp/includes/admin/migrations/4.0.0-groupings-to-interests.php

@@ -0,0 +1,112 @@
+<?php
+
+defined('ABSPATH') or exit;
+
+/**
+ * @ignore
+ * @return object
+ */
+function _mc4wp_400_find_grouping_for_interest_category($groupings, $interest_category)
+{
+    foreach ($groupings as $grouping) {
+        // cast to stdClass because of missing class
+        $grouping = (object) (array) $grouping;
+
+        if ($grouping->name === $interest_category->title) {
+            return $grouping;
+        }
+    }
+
+    return null;
+}
+
+/**
+ * @ignore
+ * @return object
+ */
+function _mc4wp_400_find_group_for_interest($groups, $interest)
+{
+    foreach ($groups as $group_id => $group_name) {
+        if ($group_name === $interest->name) {
+            return (object) array(
+                'name' => $group_name,
+                'id'   => $group_id,
+            );
+        }
+    }
+
+    return null;
+}
+
+// in case the migration is _very_ late to the party
+if (! class_exists('MC4WP_API_V3')) {
+    return;
+}
+
+$options = get_option('mc4wp', array());
+if (empty($options['api_key'])) {
+    return;
+}
+
+// get current state from transient
+$lists = get_transient('mc4wp_mailchimp_lists_fallback');
+if (empty($lists)) {
+    return;
+}
+
+@set_time_limit(600);
+$api_v3 = new MC4WP_API_V3($options['api_key']);
+$map    = array();
+
+foreach ($lists as $list) {
+    // cast to stdClass because of missing classes
+    $list = (object) (array) $list;
+
+    // no groupings? easy!
+    if (empty($list->groupings)) {
+        continue;
+    }
+
+    // fetch (new) interest categories for this list
+    try {
+        $interest_categories = $api_v3->get_list_interest_categories($list->id);
+    } catch (MC4WP_API_Exception $e) {
+        continue;
+    }
+
+
+    foreach ($interest_categories as $interest_category) {
+        // compare interest title with grouping name, if it matches, get new id.
+        $grouping = _mc4wp_400_find_grouping_for_interest_category($list->groupings, $interest_category);
+        if (! $grouping) {
+            continue;
+        }
+
+        $groups = array();
+
+        try {
+            $interests = $api_v3->get_list_interest_category_interests($list->id, $interest_category->id);
+        } catch (MC4WP_API_Exception $e) {
+            continue;
+        }
+
+        foreach ($interests as $interest) {
+            $group = _mc4wp_400_find_group_for_interest($grouping->groups, $interest);
+
+            if ($group) {
+                $groups[ $group->id ]   = $interest->id;
+                $groups[ $group->name ] = $interest->id;
+            }
+        }
+
+        $map[ (string) $grouping->id ] = array(
+            'id'     => $interest_category->id,
+            'groups' => $groups,
+        );
+    }
+}
+
+
+if (! empty($map)) {
+    update_option('mc4wp_groupings_map', $map);
+}