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  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (http://nette.org)
  5:  *
  6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
  7:  *
  8:  * For the full copyright and license information, please view
  9:  * the file license.txt that was distributed with this source code.
 10:  */
 11: 
 12: namespace Nette\Database\Drivers;
 13: 
 14: use Nette;
 15: 
 16: 
 17: 
 18: /**
 19:  * Supplemental Oracle database driver.
 20:  *
 21:  * @author     David Grudl
 22:  */
 23: class OciDriver extends Nette\Object implements Nette\Database\ISupplementalDriver
 24: {
 25:     /** @var Nette\Database\Connection */
 26:     private $connection;
 27: 
 28:     /** @var string  Datetime format */
 29:     private $fmtDateTime;
 30: 
 31: 
 32: 
 33:     public function __construct(Nette\Database\Connection $connection, array $options)
 34:     {
 35:         $this->connection = $connection;
 36:         $this->fmtDateTime = isset($options['formatDateTime']) ? $options['formatDateTime'] : 'U';
 37:     }
 38: 
 39: 
 40: 
 41:     /********************* SQL ****************d*g**/
 42: 
 43: 
 44: 
 45:     /**
 46:      * Delimites identifier for use in a SQL statement.
 47:      */
 48:     public function delimite($name)
 49:     {
 50:         // @see http://download.oracle.com/docs/cd/B10500_01/server.920/a96540/sql_elements9a.htm
 51:         return '"' . str_replace('"', '""', $name) . '"';
 52:     }
 53: 
 54: 
 55: 
 56:     /**
 57:      * Formats date-time for use in a SQL statement.
 58:      */
 59:     public function formatDateTime(\DateTime $value)
 60:     {
 61:         return $value->format($this->fmtDateTime);
 62:     }
 63: 
 64: 
 65: 
 66:     /**
 67:      * Encodes string for use in a LIKE statement.
 68:      */
 69:     public function formatLike($value, $pos)
 70:     {
 71:         throw new Nette\NotImplementedException;
 72:     }
 73: 
 74: 
 75: 
 76:     /**
 77:      * Injects LIMIT/OFFSET to the SQL query.
 78:      */
 79:     public function applyLimit(&$sql, $limit, $offset)
 80:     {
 81:         if ($offset > 0) {
 82:             // see http://www.oracle.com/technology/oramag/oracle/06-sep/o56asktom.html
 83:             $sql = 'SELECT * FROM (SELECT t.*, ROWNUM AS "__rnum" FROM (' . $sql . ') t '
 84:                 . ($limit >= 0 ? 'WHERE ROWNUM <= ' . ((int) $offset + (int) $limit) : '')
 85:                 . ') WHERE "__rnum" > '. (int) $offset;
 86: 
 87:         } elseif ($limit >= 0) {
 88:             $sql = 'SELECT * FROM (' . $sql . ') WHERE ROWNUM <= ' . (int) $limit;
 89:         }
 90:     }
 91: 
 92: 
 93: 
 94:     /**
 95:      * Normalizes result row.
 96:      */
 97:     public function normalizeRow($row, $statement)
 98:     {
 99:         return $row;
100:     }
101: 
102: 
103: 
104:     /********************* reflection ****************d*g**/
105: 
106: 
107: 
108:     /**
109:      * Returns list of tables.
110:      */
111:     public function getTables()
112:     {
113:         $tables = array();
114:         foreach ($this->connection->query('SELECT * FROM cat', \PDO::FETCH_NUM) as $row) {
115:             if ($row[1] === 'TABLE' || $row[1] === 'VIEW') {
116:                 $tables[] = array(
117:                     'name' => $row[0],
118:                     'view' => $row[1] === 'VIEW',
119:                 );
120:             }
121:         }
122:         return $tables;
123:     }
124: 
125: 
126: 
127:     /**
128:      * Returns metadata for all columns in a table.
129:      */
130:     public function getColumns($table)
131:     {
132:         throw new NotImplementedException;
133:     }
134: 
135: 
136: 
137:     /**
138:      * Returns metadata for all indexes in a table.
139:      */
140:     public function getIndexes($table)
141:     {
142:         throw new NotImplementedException;
143:     }
144: 
145: 
146: 
147:     /**
148:      * Returns metadata for all foreign keys in a table.
149:      */
150:     public function getForeignKeys($table)
151:     {
152:         throw new NotImplementedException;
153:     }
154: 
155: 
156: 
157:     /**
158:      * @return bool
159:      */
160:     public function isSupported($item)
161:     {
162:         return $item === self::META;
163:     }
164: 
165: }
166: 
Nette Framework 2.0.0 API API documentation generated by ApiGen 2.7.0