Move dynamic segments from Premium plugin

[MAILPOET-2382]

lib/Models/DynamicSegmentFilter.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace MailPoet\Premium\Models;
+
+use MailPoet\Models\Model;
+use MailPoet\WP\Functions as WPFunctions;
+
+/**
+ * @property array|string|null $filter_data
+ * @property string $segment_id
+ */
+class DynamicSegmentFilter extends Model {
+
+  public static $_table = MP_DYNAMIC_SEGMENTS_FILTERS_TABLE;
+
+  function save() {
+    if (is_null($this->filter_data)) {
+      $this->filter_data = [];
+    }
+
+    if (!WPFunctions::get()->isSerialized($this->filter_data)) {
+      $this->filter_data = serialize($this->filter_data);
+    }
+
+    return parent::save();
+  }
+
+  static function getAllBySegmentIds($segmentIds) {
+    if (empty($segmentIds)) return [];
+    $query = self::tableAlias('filters')
+      ->whereIn('filters.segment_id', $segmentIds);
+
+    $query->findMany();
+    return $query->findMany();
+  }
+
+  public function __get($name) {
+    $value = parent::__get($name);
+    if ($name === 'filter_data' && WPFunctions::get()->isSerialized($value)) {
+      return unserialize($value);
+    }
+    return $value;
+  }
+
+  static function deleteAllBySegmentIds($segmentIds) {
+    if (empty($segmentIds)) return;
+
+    $query = self::tableAlias('filters')
+      ->whereIn('segment_id', $segmentIds);
+
+    $query->deleteMany();
+
+  }
+
+}