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vendor/yiisoft/yii2/db/sqlite/ColumnSchemaBuilder.php

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+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\db\sqlite;
+
+use yii\db\ColumnSchemaBuilder as AbstractColumnSchemaBuilder;
+
+/**
+ * ColumnSchemaBuilder is the schema builder for Sqlite databases.
+ *
+ * @author Chris Harris <chris@buckshotsoftware.com>
+ * @since 2.0.8
+ */
+class ColumnSchemaBuilder extends AbstractColumnSchemaBuilder
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function buildUnsignedString()
+    {
+        return $this->isUnsigned ? ' UNSIGNED' : '';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __toString()
+    {
+        switch ($this->getTypeCategory()) {
+            case self::CATEGORY_PK:
+                $format = '{type}{check}{append}';
+                break;
+            case self::CATEGORY_NUMERIC:
+                $format = '{type}{length}{unsigned}{notnull}{unique}{check}{default}{append}';
+                break;
+            default:
+                $format = '{type}{length}{notnull}{unique}{check}{default}{append}';
+        }
+
+        return $this->buildCompleteString($format);
+    }
+}