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<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://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 <[email protected]> |
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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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yiisoft /
yii2
