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