Added SchemaBuilderTrait

Migration.php

@@ -14,6 +14,7 @@
  */
 class Migration extends \yii\db\Migration
 {
+    use SchemaBuilderTrait;
 
     public $db = 'clickhouse';
 

SchemaBuilderTrait.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace bashkarev\clickhouse;
+
+/**
+ * Schema builder trait
+ * 
+ * Provides some shortcuts for specific clickhouse data types and etc.
+ * 
+ * @see \yii\db\SchemaBuilderTrait For better understanding about logic of this trait
+ * @method \yii\db\Connection getDb()
+ */
+trait SchemaBuilderTrait
+{
+    /**
+     * Creates an UUID column
+     *
+     * @return ColumnSchemaBuilder
+     * @see https://clickhouse.tech/docs/en/sql-reference/data-types/uuid/ For more information about UUID columns
+     */
+    public function uuid(): ColumnSchemaBuilder
+    {
+        return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_UUID);
+    }
+}