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doctrine2/lib/Doctrine/DataDict/Mssql.php
2006-11-28 18:39:57 +00:00

371 lines
13 KiB
PHP

<?php
/*
* $Id$
*
* 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.com>.
*/
/**
* @package Doctrine
* @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 $Revision$
* @category Object Relational Mapping
* @link www.phpdoctrine.com
* @since 1.0
*/
class Doctrine_DataDict_Mssql extends Doctrine_Connection_Module {
/**
* 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) {
switch ($field['type']) {
case 'array':
case 'object':
case 'text':
case 'char':
case 'varchar':
case 'string':
$length = !empty($field['length'])
? $field['length'] : false;
$fixed = ((isset($field['fixed']) && $field['fixed']) || $field['type'] == 'char') ? true : false;
return $fixed ? ($length ? 'CHAR('.$length.')' : 'CHAR('.$db->options['default_text_field_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':
return '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']) ? $field['length'] : 18;
return 'DECIMAL('.$length.','.$db->options['decimal_places'].')';
}
return '';
}
/**
* 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 = $field['length'];
if ((int)$length <= 0) {
$length = null;
}
$type = array();
// todo: unsigned handling seems to be missing
$unsigned = $fixed = null;
switch ($db_type) {
case 'bit':
$type[0] = 'boolean';
break;
case 'int':
$type[0] = 'integer';
break;
case 'datetime':
$type[0] = 'timestamp';
break;
case 'float':
case 'real':
case 'numeric':
$type[0] = 'float';
break;
case 'decimal':
case 'money':
$type[0] = 'decimal';
break;
case 'text':
case 'varchar':
$fixed = false;
case 'char':
$type[0] = 'text';
if ($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';
$length = null;
break;
default:
throw new Doctrine_DataDict_Mssql_Exception('unknown database attribute type: '.$db_type);
}
return array($type, $length, $unsigned, $fixed);
}
/**
* lists all databases
*
* @return array
*/
public function listDatabases() {
}
/**
* lists all availible database functions
*
* @return array
*/
public function listFunctions() {
}
/**
* lists all database triggers
*
* @param string|null $database
* @return array
*/
public function listTriggers($database = null) {
}
/**
* lists all database sequences
*
* @param string|null $database
* @return array
*/
public function listSequences($database = null) {
$query = "SELECT name FROM sysobjects WHERE xtype = 'U'";
$table_names = $db->queryCol($query);
if (PEAR::isError($table_names)) {
return $table_names;
}
$result = array();
foreach ($table_names as $table_name) {
if ($sqn = $this->_fixSequenceName($table_name, true)) {
$result[] = $sqn;
}
}
if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
$result = array_map(($db->options['field_case'] == CASE_LOWER ?
'strtolower' : 'strtoupper'), $result);
}
return $result;
}
/**
* lists table constraints
*
* @param string $table database table name
* @return array
*/
public function listTableConstraints($table) {
}
/**
* lists table constraints
*
* @param string $table database table name
* @return array
*/
public function listTableColumns($table) {
$sql = 'EXEC sp_columns @table_name = ' . $this->quoteIdentifier($table);
$result = $this->dbh->query($sql)->fetchAll(PDO::FETCH_ASSOC);
$columns = array();
foreach ($result as $key => $val) {
if (strstr($val['type_name'], ' ')) {
list($type, $identity) = explode(' ', $val['type_name']);
} else {
$type = $val['type_name'];
$identity = '';
}
if ($type == 'varchar') {
$type .= '('.$val['length'].')';
}
$description = array(
'name' => $val['column_name'],
'type' => $type,
'notnull' => (bool) ($val['is_nullable'] === 'NO'),
'default' => $val['column_def'],
'primary' => (strtolower($identity) == 'identity'),
);
$columns[$val['column_name']] = new Doctrine_Schema_Column($description);
}
return $columns;
}
/**
* lists table constraints
*
* @param string $table database table name
* @return array
*/
public function listTableIndexes($table) {
}
/**
* lists tables
*
* @param string|null $database
* @return array
*/
public function listTables($database = null) {
$sql = "SELECT name FROM sysobjects WHERE type = 'U' ORDER BY name";
return $this->dbh->fetchCol($sql);
}
/**
* lists table triggers
*
* @param string $table database table name
* @return array
*/
public function listTableTriggers($table) {
$table = $db->quote($table, 'text');
$query = "SELECT name FROM sysobjects WHERE xtype = 'TR'";
if (!is_null($table)) {
$query .= "AND object_name(parent_obj) = $table";
}
$result = $db->queryCol($query);
if (PEAR::isError($results)) {
return $result;
}
if ($db->options['portability'] & Doctrine::PORTABILITY_FIX_CASE &&
$db->options['field_case'] == CASE_LOWER)
{
$result = array_map(($db->options['field_case'] == CASE_LOWER ?
'strtolower' : 'strtoupper'), $result);
}
return $result;
}
/**
* lists table views
*
* @param string $table database table name
* @return array
*/
public function listTableViews($table) {
$keyName = 'INDEX_NAME';
$pkName = 'PK_NAME';
if ($db->options['portability'] & Doctrine::PORTABILITY_FIX_CASE) {
if ($db->options['field_case'] == CASE_LOWER) {
$keyName = strtolower($keyName);
$pkName = strtolower($pkName);
} else {
$keyName = strtoupper($keyName);
$pkName = strtoupper($pkName);
}
}
$table = $db->quote($table, 'text');
$query = 'EXEC sp_statistics @table_name = ' . $table;
$indexes = $db->queryCol($query, 'text', $keyName);
$query = 'EXEC sp_pkeys @table_name = ' . $table;
$pkAll = $db->queryCol($query, 'text', $pkName);
$result = array();
foreach ($indexes as $index) {
if (!in_array($index, $pkAll) && $index != null) {
$result[$this->_fixIndexName($index)] = true;
}
}
if ($db->options['portability'] & Doctrine::PORTABILITY_FIX_CASE) {
$result = array_change_key_case($result, $db->options['field_case']);
}
return array_keys($result);
}
/**
* lists database users
*
* @return array
*/
public function listUsers() {
}
/**
* lists database views
*
* @param string|null $database
* @return array
*/
public function listViews($database = null) {
$query = "SELECT name FROM sysobjects WHERE xtype = 'V'";
$result = $db->queryCol($query);
if ($db->options['portability'] & Doctrine::PORTABILITY_FIX_CASE &&
$db->options['field_case'] == CASE_LOWER)
{
$result = array_map(($db->options['field_case'] == CASE_LOWER ?
'strtolower' : 'strtoupper'), $result);
}
return $result;
}
}