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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\mssql;
use yii\base\InvalidParamException;
/**
* QueryBuilder is the query builder for MS SQL Server databases (version 2008 and above).
*
* @author Timur Ruziev <resurtm@gmail.com>
* @since 2.0
*/
class QueryBuilder extends \yii\db\QueryBuilder
{
/**
* @var array mapping from abstract column types (keys) to physical column types (values).
*/
public $typeMap = array(
Schema::TYPE_PK => 'int IDENTITY PRIMARY KEY',
Schema::TYPE_STRING => 'varchar(255)',
Schema::TYPE_TEXT => 'text',
Schema::TYPE_SMALLINT => 'smallint(6)',
Schema::TYPE_INTEGER => 'int(11)',
Schema::TYPE_BIGINT => 'bigint(20)',
Schema::TYPE_FLOAT => 'float',
Schema::TYPE_DECIMAL => 'decimal(10,0)',
Schema::TYPE_DATETIME => 'datetime',
Schema::TYPE_TIMESTAMP => 'timestamp',
Schema::TYPE_TIME => 'time',
Schema::TYPE_DATE => 'date',
Schema::TYPE_BINARY => 'binary',
Schema::TYPE_BOOLEAN => 'tinyint(1)',
Schema::TYPE_MONEY => 'decimal(19,4)',
);
// public function update($table, $columns, $condition, &$params)
// {
// return '';
// }
// public function delete($table, $condition, &$params)
// {
// return '';
// }
// public function buildLimit($limit, $offset)
// {
// return '';
// }
// public function resetSequence($table, $value = null)
// {
// return '';
// }
/**
* Builds a SQL statement for enabling or disabling integrity check.
* @param boolean $check whether to turn on or off the integrity check.
* @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema.
* @param string $table the table name. Defaults to empty string, meaning that no table will be changed.
* @return string the SQL statement for checking integrity
* @throws InvalidParamException if the table does not exist or there is no sequence associated with the table.
*/
public function checkIntegrity($check = true, $schema = '', $table = '')
{
if ($schema !== '') {
$table = "{$schema}.{$table}";
}
$table = $this->db->quoteTableName($table);
if ($this->db->getTableSchema($table) === null) {
throw new InvalidParamException("Table not found: $table");
}
$enable = $check ? 'CHECK' : 'NOCHECK';
return "ALTER TABLE {$table} {$enable} CONSTRAINT ALL";
}
}