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			420 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			420 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?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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| 
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| namespace yii\db\mssql;
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| 
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| use yii\base\InvalidArgumentException;
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| use yii\db\Constraint;
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| use yii\db\Expression;
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| 
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| /**
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|  * QueryBuilder is the query builder for MS SQL Server databases (version 2008 and above).
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|  *
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|  * @author Timur Ruziev <resurtm@gmail.com>
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|  * @since 2.0
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|  */
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| class QueryBuilder extends \yii\db\QueryBuilder
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| {
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|     /**
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|      * @var array mapping from abstract column types (keys) to physical column types (values).
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|      */
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|     public $typeMap = [
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|         Schema::TYPE_PK => 'int IDENTITY PRIMARY KEY',
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|         Schema::TYPE_UPK => 'int IDENTITY PRIMARY KEY',
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|         Schema::TYPE_BIGPK => 'bigint IDENTITY PRIMARY KEY',
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|         Schema::TYPE_UBIGPK => 'bigint IDENTITY PRIMARY KEY',
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|         Schema::TYPE_CHAR => 'nchar(1)',
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|         Schema::TYPE_STRING => 'nvarchar(255)',
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|         Schema::TYPE_TEXT => 'nvarchar(max)',
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|         Schema::TYPE_TINYINT => 'tinyint',
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|         Schema::TYPE_SMALLINT => 'smallint',
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|         Schema::TYPE_INTEGER => 'int',
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|         Schema::TYPE_BIGINT => 'bigint',
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|         Schema::TYPE_FLOAT => 'float',
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|         Schema::TYPE_DOUBLE => 'float',
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|         Schema::TYPE_DECIMAL => 'decimal(18,0)',
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|         Schema::TYPE_DATETIME => 'datetime',
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|         Schema::TYPE_TIMESTAMP => 'datetime',
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|         Schema::TYPE_TIME => 'time',
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|         Schema::TYPE_DATE => 'date',
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|         Schema::TYPE_BINARY => 'varbinary(max)',
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|         Schema::TYPE_BOOLEAN => 'bit',
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|         Schema::TYPE_MONEY => 'decimal(19,4)',
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|     ];
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| 
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     protected function defaultExpressionBuilders()
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|     {
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|         return array_merge(parent::defaultExpressionBuilders(), [
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|             'yii\db\conditions\InCondition' => 'yii\db\mssql\conditions\InConditionBuilder',
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|             'yii\db\conditions\LikeCondition' => 'yii\db\mssql\conditions\LikeConditionBuilder',
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|         ]);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function buildOrderByAndLimit($sql, $orderBy, $limit, $offset)
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|     {
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|         if (!$this->hasOffset($offset) && !$this->hasLimit($limit)) {
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|             $orderBy = $this->buildOrderBy($orderBy);
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|             return $orderBy === '' ? $sql : $sql . $this->separator . $orderBy;
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|         }
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| 
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|         if (version_compare($this->db->getSchema()->getServerVersion(), '11', '<')) {
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|             return $this->oldBuildOrderByAndLimit($sql, $orderBy, $limit, $offset);
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|         }
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| 
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|         return $this->newBuildOrderByAndLimit($sql, $orderBy, $limit, $offset);
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|     }
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| 
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|     /**
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|      * Builds the ORDER BY/LIMIT/OFFSET clauses for SQL SERVER 2012 or newer.
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|      * @param string $sql the existing SQL (without ORDER BY/LIMIT/OFFSET)
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|      * @param array $orderBy the order by columns. See [[\yii\db\Query::orderBy]] for more details on how to specify this parameter.
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|      * @param int $limit the limit number. See [[\yii\db\Query::limit]] for more details.
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|      * @param int $offset the offset number. See [[\yii\db\Query::offset]] for more details.
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|      * @return string the SQL completed with ORDER BY/LIMIT/OFFSET (if any)
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|      */
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|     protected function newBuildOrderByAndLimit($sql, $orderBy, $limit, $offset)
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|     {
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|         $orderBy = $this->buildOrderBy($orderBy);
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|         if ($orderBy === '') {
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|             // ORDER BY clause is required when FETCH and OFFSET are in the SQL
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|             $orderBy = 'ORDER BY (SELECT NULL)';
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|         }
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|         $sql .= $this->separator . $orderBy;
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| 
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|         // http://technet.microsoft.com/en-us/library/gg699618.aspx
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|         $offset = $this->hasOffset($offset) ? $offset : '0';
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|         $sql .= $this->separator . "OFFSET $offset ROWS";
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|         if ($this->hasLimit($limit)) {
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|             $sql .= $this->separator . "FETCH NEXT $limit ROWS ONLY";
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|         }
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| 
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|         return $sql;
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|     }
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| 
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|     /**
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|      * Builds the ORDER BY/LIMIT/OFFSET clauses for SQL SERVER 2005 to 2008.
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|      * @param string $sql the existing SQL (without ORDER BY/LIMIT/OFFSET)
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|      * @param array $orderBy the order by columns. See [[\yii\db\Query::orderBy]] for more details on how to specify this parameter.
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|      * @param int $limit the limit number. See [[\yii\db\Query::limit]] for more details.
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|      * @param int $offset the offset number. See [[\yii\db\Query::offset]] for more details.
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|      * @return string the SQL completed with ORDER BY/LIMIT/OFFSET (if any)
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|      */
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|     protected function oldBuildOrderByAndLimit($sql, $orderBy, $limit, $offset)
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|     {
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|         $orderBy = $this->buildOrderBy($orderBy);
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|         if ($orderBy === '') {
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|             // ROW_NUMBER() requires an ORDER BY clause
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|             $orderBy = 'ORDER BY (SELECT NULL)';
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|         }
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| 
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|         $sql = preg_replace('/^([\s(])*SELECT(\s+DISTINCT)?(?!\s*TOP\s*\()/i', "\\1SELECT\\2 rowNum = ROW_NUMBER() over ($orderBy),", $sql);
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| 
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|         if ($this->hasLimit($limit)) {
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|             $sql = "SELECT TOP $limit * FROM ($sql) sub";
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|         } else {
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|             $sql = "SELECT * FROM ($sql) sub";
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|         }
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|         if ($this->hasOffset($offset)) {
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|             $sql .= $this->separator . "WHERE rowNum > $offset";
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|         }
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| 
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|         return $sql;
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|     }
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| 
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|     /**
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|      * Builds a SQL statement for renaming a DB table.
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|      * @param string $oldName the table to be renamed. The name will be properly quoted by the method.
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|      * @param string $newName the new table name. The name will be properly quoted by the method.
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|      * @return string the SQL statement for renaming a DB table.
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|      */
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|     public function renameTable($oldName, $newName)
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|     {
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|         return 'sp_rename ' . $this->db->quoteTableName($oldName) . ', ' . $this->db->quoteTableName($newName);
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|     }
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| 
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|     /**
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|      * Builds a SQL statement for renaming a column.
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|      * @param string $table the table whose column is to be renamed. The name will be properly quoted by the method.
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|      * @param string $oldName the old name of the column. The name will be properly quoted by the method.
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|      * @param string $newName the new name of the column. The name will be properly quoted by the method.
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|      * @return string the SQL statement for renaming a DB column.
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|      */
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|     public function renameColumn($table, $oldName, $newName)
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|     {
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|         $table = $this->db->quoteTableName($table);
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|         $oldName = $this->db->quoteColumnName($oldName);
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|         $newName = $this->db->quoteColumnName($newName);
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|         return "sp_rename '{$table}.{$oldName}', {$newName}, 'COLUMN'";
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|     }
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| 
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|     /**
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|      * Builds a SQL statement for changing the definition of a column.
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|      * @param string $table the table whose column is to be changed. The table name will be properly quoted by the method.
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|      * @param string $column the name of the column to be changed. The name will be properly quoted by the method.
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|      * @param string $type the new column type. The [[getColumnType]] method will be invoked to convert abstract column type (if any)
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|      * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL.
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|      * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'.
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|      * @return string the SQL statement for changing the definition of a column.
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|      */
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|     public function alterColumn($table, $column, $type)
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|     {
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|         $type = $this->getColumnType($type);
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|         $sql = 'ALTER TABLE ' . $this->db->quoteTableName($table) . ' ALTER COLUMN '
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|             . $this->db->quoteColumnName($column) . ' '
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|             . $this->getColumnType($type);
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| 
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|         return $sql;
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function addDefaultValue($name, $table, $column, $value)
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|     {
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|         return 'ALTER TABLE ' . $this->db->quoteTableName($table) . ' ADD CONSTRAINT '
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|             . $this->db->quoteColumnName($name) . ' DEFAULT ' . $this->db->quoteValue($value) . ' FOR '
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|             . $this->db->quoteColumnName($column);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function dropDefaultValue($name, $table)
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|     {
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|         return 'ALTER TABLE ' . $this->db->quoteTableName($table)
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|             . ' DROP CONSTRAINT ' . $this->db->quoteColumnName($name);
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|     }
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| 
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|     /**
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|      * Creates a SQL statement for resetting the sequence value of a table's primary key.
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|      * The sequence will be reset such that the primary key of the next new row inserted
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|      * will have the specified value or 1.
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|      * @param string $tableName the name of the table whose primary key sequence will be reset
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|      * @param mixed $value the value for the primary key of the next new row inserted. If this is not set,
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|      * the next new row's primary key will have a value 1.
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|      * @return string the SQL statement for resetting sequence
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|      * @throws InvalidArgumentException if the table does not exist or there is no sequence associated with the table.
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|      */
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|     public function resetSequence($tableName, $value = null)
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|     {
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|         $table = $this->db->getTableSchema($tableName);
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|         if ($table !== null && $table->sequenceName !== null) {
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|             $tableName = $this->db->quoteTableName($tableName);
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|             if ($value === null) {
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|                 $key = $this->db->quoteColumnName(reset($table->primaryKey));
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|                 $value = "(SELECT COALESCE(MAX({$key}),0) FROM {$tableName})+1";
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|             } else {
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|                 $value = (int) $value;
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|             }
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| 
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|             return "DBCC CHECKIDENT ('{$tableName}', RESEED, {$value})";
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|         } elseif ($table === null) {
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|             throw new InvalidArgumentException("Table not found: $tableName");
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|         }
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| 
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|         throw new InvalidArgumentException("There is not sequence associated with table '$tableName'.");
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|     }
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| 
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|     /**
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|      * Builds a SQL statement for enabling or disabling integrity check.
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|      * @param bool $check whether to turn on or off the integrity check.
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|      * @param string $schema the schema of the tables.
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|      * @param string $table the table name.
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|      * @return string the SQL statement for checking integrity
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|      */
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|     public function checkIntegrity($check = true, $schema = '', $table = '')
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|     {
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|         $enable = $check ? 'CHECK' : 'NOCHECK';
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|         $schema = $schema ?: $this->db->getSchema()->defaultSchema;
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|         $tableNames = $this->db->getTableSchema($table) ? [$table] : $this->db->getSchema()->getTableNames($schema);
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|         $viewNames = $this->db->getSchema()->getViewNames($schema);
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|         $tableNames = array_diff($tableNames, $viewNames);
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|         $command = '';
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| 
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|         foreach ($tableNames as $tableName) {
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|             $tableName = $this->db->quoteTableName("{$schema}.{$tableName}");
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|             $command .= "ALTER TABLE $tableName $enable CONSTRAINT ALL; ";
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|         }
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| 
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|         return $command;
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      * @since 2.0.8
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|      */
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|     public function addCommentOnColumn($table, $column, $comment)
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|     {
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|         return "sp_updateextendedproperty @name = N'MS_Description', @value = {$this->db->quoteValue($comment)}, @level1type = N'Table',  @level1name = {$this->db->quoteTableName($table)}, @level2type = N'Column', @level2name = {$this->db->quoteColumnName($column)}";
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      * @since 2.0.8
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|      */
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|     public function addCommentOnTable($table, $comment)
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|     {
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|         return "sp_updateextendedproperty @name = N'MS_Description', @value = {$this->db->quoteValue($comment)}, @level1type = N'Table',  @level1name = {$this->db->quoteTableName($table)}";
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      * @since 2.0.8
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|      */
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|     public function dropCommentFromColumn($table, $column)
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|     {
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|         return "sp_dropextendedproperty @name = N'MS_Description', @level1type = N'Table',  @level1name = {$this->db->quoteTableName($table)}, @level2type = N'Column', @level2name = {$this->db->quoteColumnName($column)}";
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      * @since 2.0.8
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|      */
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|     public function dropCommentFromTable($table)
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|     {
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|         return "sp_dropextendedproperty @name = N'MS_Description', @level1type = N'Table',  @level1name = {$this->db->quoteTableName($table)}";
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|     }
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| 
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|     /**
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|      * Returns an array of column names given model name.
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|      *
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|      * @param string $modelClass name of the model class
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|      * @return array|null array of column names
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|      */
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|     protected function getAllColumnNames($modelClass = null)
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|     {
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|         if (!$modelClass) {
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|             return null;
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|         }
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|         /* @var $modelClass \yii\db\ActiveRecord */
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|         $schema = $modelClass::getTableSchema();
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|         return array_keys($schema->columns);
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|     }
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| 
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|     /**
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|      * @return bool whether the version of the MSSQL being used is older than 2012.
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|      * @throws \yii\base\InvalidConfigException
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|      * @throws \yii\db\Exception
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|      * @deprecated 2.0.14 Use [[Schema::getServerVersion]] with [[\version_compare()]].
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|      */
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|     protected function isOldMssql()
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|     {
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|         return version_compare($this->db->getSchema()->getServerVersion(), '11', '<');
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      * @since 2.0.8
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|      */
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|     public function selectExists($rawSql)
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|     {
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|         return 'SELECT CASE WHEN EXISTS(' . $rawSql . ') THEN 1 ELSE 0 END';
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|     }
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| 
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|     /**
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|      * Normalizes data to be saved into the table, performing extra preparations and type converting, if necessary.
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|      * @param string $table the table that data will be saved into.
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|      * @param array $columns the column data (name => value) to be saved into the table.
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|      * @return array normalized columns
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|      */
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|     private function normalizeTableRowData($table, $columns, &$params)
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|     {
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|         if (($tableSchema = $this->db->getSchema()->getTableSchema($table)) !== null) {
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|             $columnSchemas = $tableSchema->columns;
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|             foreach ($columns as $name => $value) {
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|                 // @see https://github.com/yiisoft/yii2/issues/12599
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|                 if (isset($columnSchemas[$name]) && $columnSchemas[$name]->type === Schema::TYPE_BINARY && $columnSchemas[$name]->dbType === 'varbinary' && (is_string($value) || $value === null)) {
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|                     $phName = $this->bindParam($value, $params);
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|                     $columns[$name] = new Expression("CONVERT(VARBINARY, $phName)", $params);
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|                 }
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|             }
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|         }
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| 
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|         return $columns;
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      */
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|     public function insert($table, $columns, &$params)
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|     {
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|         return parent::insert($table, $this->normalizeTableRowData($table, $columns, $params), $params);
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|     }
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| 
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|     /**
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|      * {@inheritdoc}
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|      * @see https://docs.microsoft.com/en-us/sql/t-sql/statements/merge-transact-sql
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|      * @see http://weblogs.sqlteam.com/dang/archive/2009/01/31/UPSERT-Race-Condition-With-MERGE.aspx
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|      */
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|     public function upsert($table, $insertColumns, $updateColumns, &$params)
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|     {
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|         /** @var Constraint[] $constraints */
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|         list($uniqueNames, $insertNames, $updateNames) = $this->prepareUpsertColumns($table, $insertColumns, $updateColumns, $constraints);
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|         if (empty($uniqueNames)) {
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|             return $this->insert($table, $insertColumns, $params);
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|         }
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| 
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|         $onCondition = ['or'];
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|         $quotedTableName = $this->db->quoteTableName($table);
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|         foreach ($constraints as $constraint) {
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|             $constraintCondition = ['and'];
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|             foreach ($constraint->columnNames as $name) {
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|                 $quotedName = $this->db->quoteColumnName($name);
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|                 $constraintCondition[] = "$quotedTableName.$quotedName=[EXCLUDED].$quotedName";
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|             }
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|             $onCondition[] = $constraintCondition;
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|         }
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|         $on = $this->buildCondition($onCondition, $params);
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|         list(, $placeholders, $values, $params) = $this->prepareInsertValues($table, $insertColumns, $params);
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|         $mergeSql = 'MERGE ' . $this->db->quoteTableName($table) . ' WITH (HOLDLOCK) '
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|             . 'USING (' . (!empty($placeholders) ? 'VALUES (' . implode(', ', $placeholders) . ')' : ltrim($values, ' ')) . ') AS [EXCLUDED] (' . implode(', ', $insertNames) . ') '
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|             . "ON ($on)";
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|         $insertValues = [];
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|         foreach ($insertNames as $name) {
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|             $quotedName = $this->db->quoteColumnName($name);
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|             if (strrpos($quotedName, '.') === false) {
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|                 $quotedName = '[EXCLUDED].' . $quotedName;
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|             }
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|             $insertValues[] = $quotedName;
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|         }
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|         $insertSql = 'INSERT (' . implode(', ', $insertNames) . ')'
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|             . ' VALUES (' . implode(', ', $insertValues) . ')';
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|         if ($updateColumns === false) {
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|             return "$mergeSql WHEN NOT MATCHED THEN $insertSql;";
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|         }
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| 
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|         if ($updateColumns === true) {
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|             $updateColumns = [];
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|             foreach ($updateNames as $name) {
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|                 $quotedName = $this->db->quoteColumnName($name);
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|                 if (strrpos($quotedName, '.') === false) {
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|                     $quotedName = '[EXCLUDED].' . $quotedName;
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|                 }
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|                 $updateColumns[$name] = new Expression($quotedName);
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|             }
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|         }
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|         list($updates, $params) = $this->prepareUpdateSets($table, $updateColumns, $params);
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|         $updateSql = 'UPDATE SET ' . implode(', ', $updates);
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|         return "$mergeSql WHEN MATCHED THEN $updateSql WHEN NOT MATCHED THEN $insertSql;";
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|     }
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| 
 | |
|     /**
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|      * {@inheritdoc}
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|      */
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|     public function update($table, $columns, $condition, &$params)
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|     {
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|         return parent::update($table, $this->normalizeTableRowData($table, $columns, $params), $condition, $params);
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|     }
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| }
 | 
