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<?php
/*
* $Id: Mssql.php 6759 2009-11-18 17:24:27Z jwage $
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* @package Doctrine
* @subpackage DataDict
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
* @author Frank M. Kromann <frank@kromann.info> (PEAR MDB2 Mssql driver)
* @author David Coallier <davidc@php.net> (PEAR MDB2 Mssql driver)
* @version $Revision: 6759 $
* @link www.phpdoctrine.org
* @since 1.0
*/
class Doctrine_DataDict_Mssql extends Doctrine_DataDict
{
/**
* Obtain DBMS specific SQL code portion needed to declare an text type
* field to be used in statements like CREATE TABLE.
*
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
*
* length
* Integer value that determines the maximum length of the text
* field. If this argument is missing the field should be
* declared to have the longest length allowed by the DBMS.
*
* default
* Text value to be used as default for this field.
*
* notnull
* Boolean flag that indicates whether this field is constrained
* to not be set to null.
*
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
*/
public function getNativeDeclaration($field)
{
if ( ! isset($field['type'])) {
throw new Doctrine_DataDict_Exception('Missing column type.');
}
switch ($field['type']) {
case 'enum':
$field['length'] = isset($field['length']) && $field['length'] ? $field['length']:255;
case 'array':
case 'object':
case 'text':
case 'char':
case 'varchar':
case 'string':
case 'gzip':
$length = !empty($field['length'])
? $field['length'] : false;
$fixed = ((isset($field['fixed']) && $field['fixed']) || $field['type'] == 'char') ? true : false;
return $fixed ? ($length ? 'CHAR('.$length.')' : 'CHAR('.$this->conn->varchar_max_length.')')
: ($length ? 'VARCHAR('.$length.')' : 'TEXT');
case 'clob':
if ( ! empty($field['length'])) {
$length = $field['length'];
if ($length <= 8000) {
return 'VARCHAR('.$length.')';
}
}
return 'TEXT';
case 'blob':
if ( ! empty($field['length'])) {
$length = $field['length'];
if ($length <= 8000) {
return "VARBINARY($length)";
}
}
return 'IMAGE';
case 'integer':
case 'int':
return (isset($field['unsigned']) && $field['unsigned']) ? 'BIGINT' : 'INT';
case 'boolean':
return 'BIT';
case 'date':
return 'CHAR(' . strlen('YYYY-MM-DD') . ')';
case 'time':
return 'CHAR(' . strlen('HH:MM:SS') . ')';
case 'timestamp':
return 'CHAR(' . strlen('YYYY-MM-DD HH:MM:SS') . ')';
case 'float':
return 'FLOAT';
case 'decimal':
$length = !empty($field['length']) ? $field['length'] : 18;
$scale = !empty($field['scale']) ? $field['scale'] : $this->conn->getAttribute(Doctrine_Core::ATTR_DECIMAL_PLACES);
return 'DECIMAL('.$length.','.$scale.')';
}
return $field['type'] . (isset($field['length']) ? '('.$field['length'].')':null);
}
/**
* Maps a native array description of a field to a MDB2 datatype and length
*
* @param array $field native field description
* @return array containing the various possible types, length, sign, fixed
*/
public function getPortableDeclaration($field)
{
$db_type = preg_replace('/[\d\(\)]/','', strtolower($field['type']) );
$length = (isset($field['length']) && $field['length'] > 0) ? $field['length'] : null;
$type = array();
// todo: unsigned handling seems to be missing
$unsigned = $fixed = null;
if ( ! isset($field['name']))
$field['name'] = '';
switch ($db_type) {
case 'bit':
$type[0] = 'boolean';
break;
case 'tinyint':
case 'smallint':
case 'bigint':
case 'int':
$type[0] = 'integer';
if ($length == 1) {
$type[] = 'boolean';
}
break;
case 'date':
$type[0] = 'date';
break;
case 'datetime':
case 'timestamp':
case 'smalldatetime':
$type[0] = 'timestamp';
break;
case 'float':
case 'real':
case 'numeric':
$type[0] = 'float';
break;
case 'decimal':
case 'money':
case 'smallmoney':
$type[0] = 'decimal';
break;
case 'text':
case 'varchar':
case 'ntext':
case 'nvarchar':
$fixed = false;
case 'char':
case 'nchar':
$type[0] = 'string';
if ($length == '1') {
$type[] = 'boolean';
if (preg_match('/^[is|has]/', $field['name'])) {
$type = array_reverse($type);
}
} elseif (strstr($db_type, 'text')) {
$type[] = 'clob';
}
if ($fixed !== false) {
$fixed = true;
}
break;
case 'image':
case 'varbinary':
$type[] = 'blob';
$length = null;
break;
case 'uniqueidentifier':
$type[] = 'string';
$length = 36;
break;
case 'sql_variant':
case 'sysname':
case 'binary':
$type[] = 'string';
$length = null;
break;
default:
$type[] = $field['type'];
$length = isset($field['length']) ? $field['length']:null;
}
return array('type' => $type,
'length' => $length,
'unsigned' => $unsigned,
'fixed' => $fixed);
}
/**
* Obtain DBMS specific SQL code portion needed to declare an integer type
* field to be used in statements like CREATE TABLE.
*
* @param string $name name the field to be declared.
* @param string $field associative array with the name of the properties
* of the field being declared as array indexes.
* Currently, the types of supported field
* properties are as follows:
*
* unsigned
* Boolean flag that indicates whether the field
* should be declared as unsigned integer if
* possible.
*
* default
* Integer value to be used as default for this
* field.
*
* notnull
* Boolean flag that indicates whether this field is
* constrained to not be set to null.
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
*/
public function getIntegerDeclaration($name, $field)
{
$default = $autoinc = '';
if ( ! empty($field['autoincrement'])) {
$autoinc = ' identity';
} elseif (array_key_exists('default', $field)) {
if ($field['default'] === '') {
$field['default'] = empty($field['notnull']) ? null : 0;
}
$default = ' DEFAULT ' . (is_null($field['default'])
? 'NULL'
: $this->conn->quote($field['default']));
}
$notnull = (isset($field['notnull']) && $field['notnull']) ? ' NOT NULL' : ' NULL';
//$unsigned = (isset($field['unsigned']) && $field['unsigned']) ? ' UNSIGNED' : '';
// MSSQL does not support the UNSIGNED keyword
$unsigned = '';
$comment = (isset($field['comment']) && $field['comment'])
? " COMMENT '" . $field['comment'] . "'" : '';
$name = $this->conn->quoteIdentifier($name, true);
return $name . ' ' . $this->getNativeDeclaration($field) . $unsigned
. $default . $notnull . $autoinc . $comment;
}
}
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