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

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+<?php
+/**
+ * @link https://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license https://www.yiiframework.com/license/
+ */
+
+namespace yii\db\mssql;
+
+use yii\db\ColumnSchemaBuilder as AbstractColumnSchemaBuilder;
+use yii\db\Expression;
+
+/**
+ * ColumnSchemaBuilder is the schema builder for MSSQL databases.
+ *
+ * @property-read string|null $checkValue The `CHECK` constraint for the column.
+ * @property-read string|Expression|null $defaultValue Default value of the column.
+ *
+ * @author Valerii Gorbachev <darkdef@gmail.com>
+ * @since 2.0.42
+ */
+class ColumnSchemaBuilder extends AbstractColumnSchemaBuilder
+{
+    protected $format = '{type}{length}{notnull}{unique}{default}{check}{append}';
+
+
+    /**
+     * Builds the full string for the column's schema.
+     * @return string
+     */
+    public function __toString()
+    {
+        if ($this->getTypeCategory() === self::CATEGORY_PK) {
+            $format = '{type}{check}{comment}{append}';
+        } else {
+            $format = $this->format;
+        }
+
+        return $this->buildCompleteString($format);
+    }
+
+    /**
+     * Changes default format string to MSSQL ALTER COMMAND.
+     */
+    public function setAlterColumnFormat()
+    {
+        $this->format = '{type}{length}{notnull}{append}';
+    }
+
+    /**
+     * Getting the `Default` value for constraint
+     * @return string|Expression|null default value of the column.
+     */
+    public function getDefaultValue()
+    {
+        if ($this->default instanceof Expression) {
+            return $this->default;
+        }
+
+        return $this->buildDefaultValue();
+    }
+
+    /**
+     * Get the `Check` value for constraint
+     * @return string|null the `CHECK` constraint for the column.
+     */
+    public function getCheckValue()
+    {
+        return $this->check !== null ? (string) $this->check : null;
+    }
+
+    /**
+     * @return bool whether the column values should be unique. If this is `true`, a `UNIQUE` constraint will be added.
+     */
+    public function isUnique()
+    {
+        return $this->isUnique;
+    }
+}