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<?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\base\InvalidArgumentException; |
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use yii\base\NotSupportedException; |
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use yii\db\Constraint; |
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use yii\db\Expression; |
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use yii\db\TableSchema; |
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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 <[email protected]> |
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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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* {@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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* {@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 . $orderBy; |
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} |
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if (version_compare($this->db->getSchema()->getServerVersion(), '11', '<')) { |
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return $this->oldBuildOrderByAndLimit($sql, $orderBy, $limit, $offset); |
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} |
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return $this->newBuildOrderByAndLimit($sql, $orderBy, $limit, $offset); |
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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 . $orderBy; |
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// http://technet.microsoft.com/en-us/library/gg699618.aspx |
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$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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return $sql; |
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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|Expression $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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$sql = preg_replace('/^([\s(])*SELECT(\s+DISTINCT)?(?!\s*TOP\s*\()/i', "\\1SELECT\\2 rowNum = ROW_NUMBER() over ($orderBy),", $sql); |
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if ($this->hasLimit($limit)) { |
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if ($limit instanceof Expression) { |
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$limit = '(' . (string)$limit . ')'; |
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} |
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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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return $sql; |
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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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* 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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* 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 $type the new column type. The [[getColumnType]] method will be invoked to convert abstract column type (if any) |
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* into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. |
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* For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. |
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* @return string the SQL statement for changing the definition of a column. |
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* @throws NotSupportedException if this is not supported by the underlying DBMS. |
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*/ |
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public function alterColumn($table, $column, $type) |
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{ |
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$sqlAfter = [$this->dropConstraintsForColumn($table, $column, 'D')]; |
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$columnName = $this->db->quoteColumnName($column); |
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$tableName = $this->db->quoteTableName($table); |
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$constraintBase = preg_replace('/[^a-z0-9_]/i', '', $table . '_' . $column); |
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if ($type instanceof \yii\db\mssql\ColumnSchemaBuilder) { |
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$type->setAlterColumnFormat(); |
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$defaultValue = $type->getDefaultValue(); |
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if ($defaultValue !== null) { |
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$sqlAfter[] = $this->addDefaultValue( |
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"DF_{$constraintBase}", |
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$table, |
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$column, |
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$defaultValue instanceof Expression ? $defaultValue : new Expression($defaultValue) |
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); |
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} |
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$checkValue = $type->getCheckValue(); |
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if ($checkValue !== null) { |
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$sqlAfter[] = "ALTER TABLE {$tableName} ADD CONSTRAINT " . |
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$this->db->quoteColumnName("CK_{$constraintBase}") . |
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' CHECK (' . ($defaultValue instanceof Expression ? $checkValue : new Expression($checkValue)) . ')'; |
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} |
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if ($type->isUnique()) { |
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$sqlAfter[] = "ALTER TABLE {$tableName} ADD CONSTRAINT " . $this->db->quoteColumnName("UQ_{$constraintBase}") . " UNIQUE ({$columnName})"; |
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} |
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} |
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return 'ALTER TABLE ' . $tableName . ' ALTER COLUMN ' |
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. $columnName . ' ' |
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. $this->getColumnType($type) . "\n" |
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. implode("\n", $sqlAfter); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function addDefaultValue($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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* {@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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* 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) $value; |
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} |
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return "DBCC CHECKIDENT ('{$tableName}', RESEED, {$value})"; |
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} elseif ($table === null) { |
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throw new InvalidArgumentException("Table not found: $tableName"); |
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} |
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throw new InvalidArgumentException("There is not sequence associated with table '$tableName'."); |
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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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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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return $command; |
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} |
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/** |
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* Builds a SQL command for adding or updating a comment to a table or a column. The command built will check if a comment |
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* already exists. If so, it will be updated, otherwise, it will be added. |
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* |
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* @param string $comment the text of the comment to be added. The comment will be properly quoted by the method. |
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* @param string $table the table to be commented or whose column is to be commented. The table name will be |
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* properly quoted by the method. |
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* @param string|null $column optional. The name of the column to be commented. If empty, the command will add the |
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* comment to the table instead. The column name will be properly quoted by the method. |
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* @return string the SQL statement for adding a comment. |
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* @throws InvalidArgumentException if the table does not exist. |
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* @since 2.0.24 |
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*/ |
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protected function buildAddCommentSql($comment, $table, $column = null) |
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{ |
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$tableSchema = $this->db->schema->getTableSchema($table); |
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if ($tableSchema === null) { |
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throw new InvalidArgumentException("Table not found: $table"); |
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} |
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$schemaName = $tableSchema->schemaName ? "N'" . $tableSchema->schemaName . "'" : 'SCHEMA_NAME()'; |
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$tableName = 'N' . $this->db->quoteValue($tableSchema->name); |
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$columnName = $column ? 'N' . $this->db->quoteValue($column) : null; |
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$comment = 'N' . $this->db->quoteValue($comment); |
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$functionParams = " |
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@name = N'MS_description', |
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@value = $comment, |
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@level0type = N'SCHEMA', @level0name = $schemaName, |
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@level1type = N'TABLE', @level1name = $tableName" |
321
|
|
|
. ($column ? ", @level2type = N'COLUMN', @level2name = $columnName" : '') . ';'; |
322
|
|
|
|
323
|
|
|
return " |
324
|
|
|
IF NOT EXISTS ( |
325
|
|
|
SELECT 1 |
326
|
|
|
FROM fn_listextendedproperty ( |
327
|
|
|
N'MS_description', |
328
|
|
|
'SCHEMA', $schemaName, |
329
|
|
|
'TABLE', $tableName, |
330
|
|
|
" . ($column ? "'COLUMN', $columnName " : ' DEFAULT, DEFAULT ') . " |
331
|
|
|
) |
332
|
|
|
) |
333
|
|
|
EXEC sys.sp_addextendedproperty $functionParams |
334
|
|
|
ELSE |
335
|
|
|
EXEC sys.sp_updateextendedproperty $functionParams |
336
|
|
|
"; |
337
|
|
|
} |
338
|
|
|
|
339
|
|
|
/** |
340
|
|
|
* {@inheritdoc} |
341
|
|
|
* @since 2.0.8 |
342
|
|
|
*/ |
343
|
|
|
public function addCommentOnColumn($table, $column, $comment) |
344
|
|
|
{ |
345
|
|
|
return $this->buildAddCommentSql($comment, $table, $column); |
346
|
|
|
} |
347
|
|
|
|
348
|
|
|
/** |
349
|
|
|
* {@inheritdoc} |
350
|
|
|
* @since 2.0.8 |
351
|
|
|
*/ |
352
|
|
|
public function addCommentOnTable($table, $comment) |
353
|
|
|
{ |
354
|
|
|
return $this->buildAddCommentSql($comment, $table); |
355
|
|
|
} |
356
|
|
|
|
357
|
|
|
/** |
358
|
|
|
* Builds a SQL command for removing a comment from a table or a column. The command built will check if a comment |
359
|
|
|
* already exists before trying to perform the removal. |
360
|
|
|
* |
361
|
|
|
* @param string $table the table that will have the comment removed or whose column will have the comment removed. |
362
|
|
|
* The table name will be properly quoted by the method. |
363
|
|
|
* @param string|null $column optional. The name of the column whose comment will be removed. If empty, the command |
364
|
|
|
* will remove the comment from the table instead. The column name will be properly quoted by the method. |
365
|
|
|
* @return string the SQL statement for removing the comment. |
366
|
|
|
* @throws InvalidArgumentException if the table does not exist. |
367
|
|
|
* @since 2.0.24 |
368
|
|
|
*/ |
369
|
|
|
protected function buildRemoveCommentSql($table, $column = null) |
370
|
|
|
{ |
371
|
|
|
$tableSchema = $this->db->schema->getTableSchema($table); |
372
|
|
|
|
373
|
|
|
if ($tableSchema === null) { |
374
|
|
|
throw new InvalidArgumentException("Table not found: $table"); |
375
|
|
|
} |
376
|
|
|
|
377
|
|
|
$schemaName = $tableSchema->schemaName ? "N'" . $tableSchema->schemaName . "'" : 'SCHEMA_NAME()'; |
378
|
|
|
$tableName = 'N' . $this->db->quoteValue($tableSchema->name); |
379
|
|
|
$columnName = $column ? 'N' . $this->db->quoteValue($column) : null; |
380
|
|
|
|
381
|
|
|
return " |
382
|
|
|
IF EXISTS ( |
383
|
|
|
SELECT 1 |
384
|
|
|
FROM fn_listextendedproperty ( |
385
|
|
|
N'MS_description', |
386
|
|
|
'SCHEMA', $schemaName, |
387
|
|
|
'TABLE', $tableName, |
388
|
|
|
" . ($column ? "'COLUMN', $columnName " : ' DEFAULT, DEFAULT ') . " |
389
|
|
|
) |
390
|
|
|
) |
391
|
|
|
EXEC sys.sp_dropextendedproperty |
392
|
|
|
@name = N'MS_description', |
393
|
|
|
@level0type = N'SCHEMA', @level0name = $schemaName, |
394
|
|
|
@level1type = N'TABLE', @level1name = $tableName" |
395
|
|
|
. ($column ? ", @level2type = N'COLUMN', @level2name = $columnName" : '') . ';'; |
396
|
|
|
} |
397
|
|
|
|
398
|
|
|
/** |
399
|
|
|
* {@inheritdoc} |
400
|
|
|
* @since 2.0.8 |
401
|
|
|
*/ |
402
|
|
|
public function dropCommentFromColumn($table, $column) |
403
|
|
|
{ |
404
|
|
|
return $this->buildRemoveCommentSql($table, $column); |
405
|
|
|
} |
406
|
|
|
|
407
|
|
|
/** |
408
|
|
|
* {@inheritdoc} |
409
|
|
|
* @since 2.0.8 |
410
|
|
|
*/ |
411
|
|
|
public function dropCommentFromTable($table) |
412
|
|
|
{ |
413
|
|
|
return $this->buildRemoveCommentSql($table); |
414
|
|
|
} |
415
|
|
|
|
416
|
|
|
/** |
417
|
|
|
* Returns an array of column names given model name. |
418
|
|
|
* |
419
|
|
|
* @param string|null $modelClass name of the model class |
420
|
|
|
* @return array|null array of column names |
421
|
|
|
*/ |
422
|
|
|
protected function getAllColumnNames($modelClass = null) |
423
|
|
|
{ |
424
|
|
|
if (!$modelClass) { |
425
|
|
|
return null; |
426
|
|
|
} |
427
|
|
|
/* @var $modelClass \yii\db\ActiveRecord */ |
428
|
|
|
$schema = $modelClass::getTableSchema(); |
429
|
|
|
return array_keys($schema->columns); |
430
|
|
|
} |
431
|
|
|
|
432
|
|
|
/** |
433
|
|
|
* @return bool whether the version of the MSSQL being used is older than 2012. |
434
|
|
|
* @throws \yii\base\InvalidConfigException |
435
|
|
|
* @throws \yii\db\Exception |
436
|
|
|
* @deprecated 2.0.14 Use [[Schema::getServerVersion]] with [[\version_compare()]]. |
437
|
|
|
*/ |
438
|
|
|
protected function isOldMssql() |
439
|
|
|
{ |
440
|
|
|
return version_compare($this->db->getSchema()->getServerVersion(), '11', '<'); |
|
|
|
|
441
|
|
|
} |
442
|
|
|
|
443
|
|
|
/** |
444
|
|
|
* {@inheritdoc} |
445
|
|
|
* @since 2.0.8 |
446
|
|
|
*/ |
447
|
|
|
public function selectExists($rawSql) |
448
|
|
|
{ |
449
|
|
|
return 'SELECT CASE WHEN EXISTS(' . $rawSql . ') THEN 1 ELSE 0 END'; |
450
|
|
|
} |
451
|
|
|
|
452
|
|
|
/** |
453
|
|
|
* Normalizes data to be saved into the table, performing extra preparations and type converting, if necessary. |
454
|
|
|
* @param string $table the table that data will be saved into. |
455
|
|
|
* @param array $columns the column data (name => value) to be saved into the table. |
456
|
|
|
* @return array normalized columns |
457
|
|
|
*/ |
458
|
|
|
private function normalizeTableRowData($table, $columns, &$params) |
|
|
|
|
459
|
|
|
{ |
460
|
|
|
if (($tableSchema = $this->db->getSchema()->getTableSchema($table)) !== null) { |
461
|
|
|
$columnSchemas = $tableSchema->columns; |
462
|
|
|
foreach ($columns as $name => $value) { |
463
|
|
|
// @see https://github.com/yiisoft/yii2/issues/12599 |
464
|
|
|
if (isset($columnSchemas[$name]) && $columnSchemas[$name]->type === Schema::TYPE_BINARY && $columnSchemas[$name]->dbType === 'varbinary' && (is_string($value))) { |
465
|
|
|
// @see https://github.com/yiisoft/yii2/issues/12599 |
466
|
|
|
$columns[$name] = new Expression('CONVERT(VARBINARY(MAX), ' . ('0x' . bin2hex($value)) . ')'); |
467
|
|
|
} |
468
|
|
|
} |
469
|
|
|
} |
470
|
|
|
|
471
|
|
|
return $columns; |
472
|
|
|
} |
473
|
|
|
|
474
|
|
|
/** |
475
|
|
|
* {@inheritdoc} |
476
|
|
|
* Added OUTPUT construction for getting inserted data (for SQL Server 2005 or later) |
477
|
|
|
* OUTPUT clause - The OUTPUT clause is new to SQL Server 2005 and has the ability to access |
478
|
|
|
* the INSERTED and DELETED tables as is the case with a trigger. |
479
|
|
|
*/ |
480
|
|
|
public function insert($table, $columns, &$params) |
481
|
|
|
{ |
482
|
|
|
$columns = $this->normalizeTableRowData($table, $columns, $params); |
483
|
|
|
|
484
|
|
|
$version2005orLater = version_compare($this->db->getSchema()->getServerVersion(), '9', '>='); |
485
|
|
|
|
486
|
|
|
list($names, $placeholders, $values, $params) = $this->prepareInsertValues($table, $columns, $params); |
487
|
|
|
$cols = []; |
488
|
|
|
$outputColumns = []; |
489
|
|
|
if ($version2005orLater) { |
490
|
|
|
/* @var $schema TableSchema */ |
491
|
|
|
$schema = $this->db->getTableSchema($table); |
492
|
|
|
foreach ($schema->columns as $column) { |
493
|
|
|
if ($column->isComputed) { |
|
|
|
|
494
|
|
|
continue; |
495
|
|
|
} |
496
|
|
|
|
497
|
|
|
$dbType = $column->dbType; |
498
|
|
|
if (in_array($dbType, ['char', 'varchar', 'nchar', 'nvarchar', 'binary', 'varbinary'])) { |
499
|
|
|
$dbType .= '(MAX)'; |
500
|
|
|
} |
501
|
|
|
if ($column->dbType === Schema::TYPE_TIMESTAMP) { |
502
|
|
|
$dbType = $column->allowNull ? 'varbinary(8)' : 'binary(8)'; |
503
|
|
|
} |
504
|
|
|
|
505
|
|
|
$quoteColumnName = $this->db->quoteColumnName($column->name); |
506
|
|
|
$cols[] = $quoteColumnName . ' ' . $dbType . ' ' . ($column->allowNull ? 'NULL' : ''); |
507
|
|
|
$outputColumns[] = 'INSERTED.' . $quoteColumnName; |
508
|
|
|
} |
509
|
|
|
} |
510
|
|
|
|
511
|
|
|
$countColumns = count($outputColumns); |
512
|
|
|
|
513
|
|
|
$sql = 'INSERT INTO ' . $this->db->quoteTableName($table) |
514
|
|
|
. (!empty($names) ? ' (' . implode(', ', $names) . ')' : '') |
515
|
|
|
. (($version2005orLater && $countColumns) ? ' OUTPUT ' . implode(',', $outputColumns) . ' INTO @temporary_inserted' : '') |
516
|
|
|
. (!empty($placeholders) ? ' VALUES (' . implode(', ', $placeholders) . ')' : $values); |
517
|
|
|
|
518
|
|
|
if ($version2005orLater && $countColumns) { |
519
|
|
|
$sql = 'SET NOCOUNT ON;DECLARE @temporary_inserted TABLE (' . implode(', ', $cols) . ');' . $sql . |
520
|
|
|
';SELECT * FROM @temporary_inserted'; |
521
|
|
|
} |
522
|
|
|
|
523
|
|
|
return $sql; |
524
|
|
|
} |
525
|
|
|
|
526
|
|
|
/** |
527
|
|
|
* {@inheritdoc} |
528
|
|
|
* @see https://docs.microsoft.com/en-us/sql/t-sql/statements/merge-transact-sql |
529
|
|
|
* @see https://weblogs.sqlteam.com/dang/2009/01/31/upsert-race-condition-with-merge/ |
530
|
|
|
*/ |
531
|
|
|
public function upsert($table, $insertColumns, $updateColumns, &$params) |
532
|
|
|
{ |
533
|
|
|
$insertColumns = $this->normalizeTableRowData($table, $insertColumns, $params); |
534
|
|
|
|
535
|
|
|
/** @var Constraint[] $constraints */ |
536
|
|
|
list($uniqueNames, $insertNames, $updateNames) = $this->prepareUpsertColumns($table, $insertColumns, $updateColumns, $constraints); |
537
|
|
|
if (empty($uniqueNames)) { |
538
|
|
|
return $this->insert($table, $insertColumns, $params); |
539
|
|
|
} |
540
|
|
|
if ($updateNames === []) { |
541
|
|
|
// there are no columns to update |
542
|
|
|
$updateColumns = false; |
543
|
|
|
} |
544
|
|
|
|
545
|
|
|
$onCondition = ['or']; |
546
|
|
|
$quotedTableName = $this->db->quoteTableName($table); |
547
|
|
|
foreach ($constraints as $constraint) { |
548
|
|
|
$constraintCondition = ['and']; |
549
|
|
|
foreach ($constraint->columnNames as $name) { |
550
|
|
|
$quotedName = $this->db->quoteColumnName($name); |
551
|
|
|
$constraintCondition[] = "$quotedTableName.$quotedName=[EXCLUDED].$quotedName"; |
552
|
|
|
} |
553
|
|
|
$onCondition[] = $constraintCondition; |
554
|
|
|
} |
555
|
|
|
$on = $this->buildCondition($onCondition, $params); |
556
|
|
|
list(, $placeholders, $values, $params) = $this->prepareInsertValues($table, $insertColumns, $params); |
557
|
|
|
|
558
|
|
|
/** |
559
|
|
|
* Fix number of select query params for old MSSQL version that does not support offset correctly. |
560
|
|
|
* @see QueryBuilder::oldBuildOrderByAndLimit |
561
|
|
|
*/ |
562
|
|
|
$insertNamesUsing = $insertNames; |
563
|
|
|
if (strstr($values, 'rowNum = ROW_NUMBER()') !== false) { |
564
|
|
|
$insertNamesUsing = array_merge(['[rowNum]'], $insertNames); |
565
|
|
|
} |
566
|
|
|
|
567
|
|
|
$mergeSql = 'MERGE ' . $this->db->quoteTableName($table) . ' WITH (HOLDLOCK) ' |
568
|
|
|
. 'USING (' . (!empty($placeholders) ? 'VALUES (' . implode(', ', $placeholders) . ')' : ltrim($values, ' ')) . ') AS [EXCLUDED] (' . implode(', ', $insertNamesUsing) . ') ' |
569
|
|
|
. "ON ($on)"; |
570
|
|
|
$insertValues = []; |
571
|
|
|
foreach ($insertNames as $name) { |
572
|
|
|
$quotedName = $this->db->quoteColumnName($name); |
573
|
|
|
if (strrpos($quotedName, '.') === false) { |
574
|
|
|
$quotedName = '[EXCLUDED].' . $quotedName; |
575
|
|
|
} |
576
|
|
|
$insertValues[] = $quotedName; |
577
|
|
|
} |
578
|
|
|
$insertSql = 'INSERT (' . implode(', ', $insertNames) . ')' |
579
|
|
|
. ' VALUES (' . implode(', ', $insertValues) . ')'; |
580
|
|
|
if ($updateColumns === false) { |
581
|
|
|
return "$mergeSql WHEN NOT MATCHED THEN $insertSql;"; |
582
|
|
|
} |
583
|
|
|
|
584
|
|
|
if ($updateColumns === true) { |
585
|
|
|
$updateColumns = []; |
586
|
|
|
foreach ($updateNames as $name) { |
587
|
|
|
$quotedName = $this->db->quoteColumnName($name); |
588
|
|
|
if (strrpos($quotedName, '.') === false) { |
589
|
|
|
$quotedName = '[EXCLUDED].' . $quotedName; |
590
|
|
|
} |
591
|
|
|
$updateColumns[$name] = new Expression($quotedName); |
592
|
|
|
} |
593
|
|
|
} |
594
|
|
|
$updateColumns = $this->normalizeTableRowData($table, $updateColumns, $params); |
595
|
|
|
|
596
|
|
|
list($updates, $params) = $this->prepareUpdateSets($table, $updateColumns, $params); |
597
|
|
|
$updateSql = 'UPDATE SET ' . implode(', ', $updates); |
598
|
|
|
return "$mergeSql WHEN MATCHED THEN $updateSql WHEN NOT MATCHED THEN $insertSql;"; |
599
|
|
|
} |
600
|
|
|
|
601
|
|
|
/** |
602
|
|
|
* {@inheritdoc} |
603
|
|
|
*/ |
604
|
|
|
public function update($table, $columns, $condition, &$params) |
605
|
|
|
{ |
606
|
|
|
return parent::update($table, $this->normalizeTableRowData($table, $columns, $params), $condition, $params); |
607
|
|
|
} |
608
|
|
|
|
609
|
|
|
/** |
610
|
|
|
* {@inheritdoc} |
611
|
|
|
*/ |
612
|
|
|
public function getColumnType($type) |
613
|
|
|
{ |
614
|
|
|
$columnType = parent::getColumnType($type); |
615
|
|
|
// remove unsupported keywords |
616
|
|
|
$columnType = preg_replace("/\s*comment '.*'/i", '', $columnType); |
617
|
|
|
$columnType = preg_replace('/ first$/i', '', $columnType); |
618
|
|
|
|
619
|
|
|
return $columnType; |
620
|
|
|
} |
621
|
|
|
|
622
|
|
|
/** |
623
|
|
|
* {@inheritdoc} |
624
|
|
|
*/ |
625
|
|
|
protected function extractAlias($table) |
626
|
|
|
{ |
627
|
|
|
if (preg_match('/^\[.*\]$/', $table)) { |
628
|
|
|
return false; |
629
|
|
|
} |
630
|
|
|
|
631
|
|
|
return parent::extractAlias($table); |
632
|
|
|
} |
633
|
|
|
|
634
|
|
|
/** |
635
|
|
|
* Builds a SQL statement for dropping constraints for column of table. |
636
|
|
|
* |
637
|
|
|
* @param string $table the table whose constraint is to be dropped. The name will be properly quoted by the method. |
638
|
|
|
* @param string $column the column whose constraint is to be dropped. The name will be properly quoted by the method. |
639
|
|
|
* @param string $type type of constraint, leave empty for all type of constraints(for example: D - default, 'UQ' - unique, 'C' - check) |
640
|
|
|
* @see https://docs.microsoft.com/sql/relational-databases/system-catalog-views/sys-objects-transact-sql |
641
|
|
|
* @return string the DROP CONSTRAINTS SQL |
642
|
|
|
*/ |
643
|
|
|
private function dropConstraintsForColumn($table, $column, $type = '') |
644
|
|
|
{ |
645
|
|
|
return "DECLARE @tableName VARCHAR(MAX) = '" . $this->db->quoteTableName($table) . "' |
646
|
|
|
DECLARE @columnName VARCHAR(MAX) = '{$column}' |
647
|
|
|
|
648
|
|
|
WHILE 1=1 BEGIN |
649
|
|
|
DECLARE @constraintName NVARCHAR(128) |
650
|
|
|
SET @constraintName = (SELECT TOP 1 OBJECT_NAME(cons.[object_id]) |
651
|
|
|
FROM ( |
652
|
|
|
SELECT sc.[constid] object_id |
653
|
|
|
FROM [sys].[sysconstraints] sc |
654
|
|
|
JOIN [sys].[columns] c ON c.[object_id]=sc.[id] AND c.[column_id]=sc.[colid] AND c.[name]=@columnName |
655
|
|
|
WHERE sc.[id] = OBJECT_ID(@tableName) |
656
|
|
|
UNION |
657
|
|
|
SELECT object_id(i.[name]) FROM [sys].[indexes] i |
658
|
|
|
JOIN [sys].[columns] c ON c.[object_id]=i.[object_id] AND c.[name]=@columnName |
659
|
|
|
JOIN [sys].[index_columns] ic ON ic.[object_id]=i.[object_id] AND i.[index_id]=ic.[index_id] AND c.[column_id]=ic.[column_id] |
660
|
|
|
WHERE i.[is_unique_constraint]=1 and i.[object_id]=OBJECT_ID(@tableName) |
661
|
|
|
) cons |
662
|
|
|
JOIN [sys].[objects] so ON so.[object_id]=cons.[object_id] |
663
|
|
|
" . (!empty($type) ? " WHERE so.[type]='{$type}'" : '') . ") |
664
|
|
|
IF @constraintName IS NULL BREAK |
665
|
|
|
EXEC (N'ALTER TABLE ' + @tableName + ' DROP CONSTRAINT [' + @constraintName + ']') |
666
|
|
|
END"; |
667
|
|
|
} |
668
|
|
|
|
669
|
|
|
/** |
670
|
|
|
* Drop all constraints before column delete |
671
|
|
|
* {@inheritdoc} |
672
|
|
|
*/ |
673
|
|
|
public function dropColumn($table, $column) |
674
|
|
|
{ |
675
|
|
|
return $this->dropConstraintsForColumn($table, $column) . "\nALTER TABLE " . $this->db->quoteTableName($table) |
676
|
|
|
. ' DROP COLUMN ' . $this->db->quoteColumnName($column); |
677
|
|
|
} |
678
|
|
|
} |
679
|
|
|
|
Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: