1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (https://nette.org)
  5:  * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
  6:  */
  7: 
  8: namespace Nette\Database\Drivers;
  9: 
 10: use Nette;
 11: 
 12: 
 13: /**
 14:  * Supplemental MS SQL database driver.
 15:  */
 16: class MsSqlDriver extends Nette\Object implements Nette\Database\ISupplementalDriver
 17: {
 18: 
 19:     public function convertException(\PDOException $e)
 20:     {
 21:         return Nette\Database\DriverException::from($e);
 22:     }
 23: 
 24: 
 25:     /********************* SQL ****************d*g**/
 26: 
 27: 
 28:     /**
 29:      * Delimites identifier for use in a SQL statement.
 30:      */
 31:     public function delimite($name)
 32:     {
 33:         // @see https://msdn.microsoft.com/en-us/library/ms176027.aspx
 34:         return '[' . str_replace(array('[', ']'), array('[[', ']]'), $name) . ']';
 35:     }
 36: 
 37: 
 38:     /**
 39:      * Formats boolean for use in a SQL statement.
 40:      */
 41:     public function formatBool($value)
 42:     {
 43:         return $value ? '1' : '0';
 44:     }
 45: 
 46: 
 47:     /**
 48:      * Formats date-time for use in a SQL statement.
 49:      */
 50:     public function formatDateTime(/*\DateTimeInterface*/ $value)
 51:     {
 52:         return $value->format("'Y-m-d H:i:s'");
 53:     }
 54: 
 55: 
 56:     /**
 57:      * Formats date-time interval for use in a SQL statement.
 58:      */
 59:     public function formatDateInterval(\DateInterval $value)
 60:     {
 61:         throw new Nette\NotSupportedException;
 62:     }
 63: 
 64: 
 65:     /**
 66:      * Encodes string for use in a LIKE statement.
 67:      */
 68:     public function formatLike($value, $pos)
 69:     {
 70:         $value = strtr($value, array("'" => "''", '%' => '[%]', '_' => '[_]', '[' => '[[]'));
 71:         return ($pos <= 0 ? "'%" : "'") . $value . ($pos >= 0 ? "%'" : "'");
 72:     }
 73: 
 74: 
 75:     /**
 76:      * Injects LIMIT/OFFSET to the SQL query.
 77:      */
 78:     public function applyLimit(& $sql, $limit, $offset)
 79:     {
 80:         if ($offset) {
 81:             throw new Nette\NotSupportedException('Offset is not supported by this database.');
 82: 
 83:         } elseif ($limit < 0) {
 84:             throw new Nette\InvalidArgumentException('Negative offset or limit.');
 85: 
 86:         } elseif ($limit !== NULL) {
 87:             $sql = preg_replace('#^\s*(SELECT(\s+DISTINCT|\s+ALL)?|UPDATE|DELETE)#i', '$0 TOP ' . (int) $limit, $sql, 1, $count);
 88:             if (!$count) {
 89:                 throw new Nette\InvalidArgumentException('SQL query must begin with SELECT, UPDATE or DELETE command.');
 90:             }
 91:         }
 92:     }
 93: 
 94: 
 95:     /**
 96:      * Normalizes result row.
 97:      */
 98:     public function normalizeRow($row)
 99:     {
100:         return $row;
101:     }
102: 
103: 
104:     /********************* reflection ****************d*g**/
105: 
106: 
107:     /**
108:      * Returns list of tables.
109:      */
110:     public function getTables()
111:     {
112:         throw new Nette\NotImplementedException;
113:     }
114: 
115: 
116:     /**
117:      * Returns metadata for all columns in a table.
118:      */
119:     public function getColumns($table)
120:     {
121:         throw new Nette\NotImplementedException;
122:     }
123: 
124: 
125:     /**
126:      * Returns metadata for all indexes in a table.
127:      */
128:     public function getIndexes($table)
129:     {
130:         throw new Nette\NotImplementedException;
131:     }
132: 
133: 
134:     /**
135:      * Returns metadata for all foreign keys in a table.
136:      */
137:     public function getForeignKeys($table)
138:     {
139:         throw new Nette\NotImplementedException;
140:     }
141: 
142: 
143:     /**
144:      * Returns associative array of detected types (IReflection::FIELD_*) in result set.
145:      */
146:     public function getColumnTypes(\PDOStatement $statement)
147:     {
148:         return Nette\Database\Helpers::detectTypes($statement);
149:     }
150: 
151: 
152:     /**
153:      * @param  string
154:      * @return bool
155:      */
156:     public function isSupported($item)
157:     {
158:         return $item === self::SUPPORT_SUBSELECT;
159:     }
160: 
161: }
162: