412 lines
12 KiB
PHP
412 lines
12 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.doctrine-project.org>.
|
|
*/
|
|
|
|
namespace Doctrine\DBAL\Platforms;
|
|
|
|
use Doctrine\Common\DoctrineException;
|
|
|
|
/**
|
|
* The SqlitePlatform class describes the specifics and dialects of the SQLite
|
|
* database platform.
|
|
*
|
|
* @since 2.0
|
|
* @author Roman Borschel <roman@code-factory.org>
|
|
*/
|
|
class SqlitePlatform extends AbstractPlatform
|
|
{
|
|
/**
|
|
* the constructor
|
|
*/
|
|
public function __construct()
|
|
{
|
|
parent::__construct();
|
|
}
|
|
|
|
/**
|
|
* Returns the md5 sum of the data that SQLite's md5() function receives.
|
|
*
|
|
* @param mixed $data
|
|
* @return string
|
|
*/
|
|
public static function md5Impl($data)
|
|
{
|
|
return md5($data);
|
|
}
|
|
|
|
/**
|
|
* Returns the modules of the data that SQLite's mod() function receives.
|
|
*
|
|
* @param integer $dividend
|
|
* @param integer $divisor
|
|
* @return string
|
|
*/
|
|
public static function modImpl($dividend, $divisor)
|
|
{
|
|
return $dividend % $divisor;
|
|
}
|
|
|
|
/**
|
|
* locate
|
|
* returns the position of the first occurrence of substring $substr in string $str that
|
|
* SQLite's locate() function receives
|
|
*
|
|
* @param string $substr literal string to find
|
|
* @param string $str literal string
|
|
* @return string
|
|
*/
|
|
public static function locateImpl($substr, $str)
|
|
{
|
|
return strpos($str, $substr);
|
|
}
|
|
|
|
public static function sha1Impl($str)
|
|
{
|
|
return sha1($str);
|
|
}
|
|
|
|
public static function ltrimImpl($str)
|
|
{
|
|
return ltrim($str);
|
|
}
|
|
|
|
public static function rtrimImpl($str)
|
|
{
|
|
return rtrim($str);
|
|
}
|
|
|
|
public static function trimImpl($str)
|
|
{
|
|
return trim($str);
|
|
}
|
|
|
|
/**
|
|
* returns the regular expression operator
|
|
*
|
|
* @return string
|
|
* @override
|
|
*/
|
|
public function getRegexpExpression()
|
|
{
|
|
return 'RLIKE';
|
|
}
|
|
|
|
/**
|
|
* Returns a string to call a function to compute the
|
|
* soundex encoding of a string
|
|
*
|
|
* The string "?000" is returned if the argument is NULL.
|
|
*
|
|
* @param string $value
|
|
* @return string SQL soundex function with given parameter
|
|
*/
|
|
public function getSoundexExpression($value)
|
|
{
|
|
return 'SOUNDEX(' . $value . ')';
|
|
}
|
|
|
|
/**
|
|
* Return string to call a variable with the current timestamp inside an SQL statement
|
|
* There are three special variables for current date and time.
|
|
*
|
|
* @return string sqlite function as string
|
|
* @override
|
|
*/
|
|
public function getNowExpression($type = 'timestamp')
|
|
{
|
|
switch ($type) {
|
|
case 'time':
|
|
return 'time(\'now\')';
|
|
case 'date':
|
|
return 'date(\'now\')';
|
|
case 'timestamp':
|
|
default:
|
|
return 'datetime(\'now\')';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* return string to call a function to get random value inside an SQL statement
|
|
*
|
|
* @return string to generate float between 0 and 1
|
|
* @override
|
|
*/
|
|
public function getRandomExpression()
|
|
{
|
|
return '((RANDOM() + 2147483648) / 4294967296)';
|
|
}
|
|
|
|
/**
|
|
* return string to call a function to get a substring inside an SQL statement
|
|
*
|
|
* Note: Not SQL92, but common functionality.
|
|
*
|
|
* SQLite only supports the 2 parameter variant of this function
|
|
*
|
|
* @param string $value an sql string literal or column name/alias
|
|
* @param integer $position where to start the substring portion
|
|
* @param integer $length the substring portion length
|
|
* @return string SQL substring function with given parameters
|
|
* @override
|
|
*/
|
|
public function getSubstringExpression($value, $position, $length = null)
|
|
{
|
|
if ($length !== null) {
|
|
return 'SUBSTR(' . $value . ', ' . $position . ', ' . $length . ')';
|
|
}
|
|
return 'SUBSTR(' . $value . ', ' . $position . ', LENGTH(' . $value . '))';
|
|
}
|
|
|
|
protected function _getTransactionIsolationLevelSql($level)
|
|
{
|
|
switch ($level) {
|
|
case \Doctrine\DBAL\Connection::TRANSACTION_READ_UNCOMMITTED:
|
|
return 0;
|
|
case \Doctrine\DBAL\Connection::TRANSACTION_READ_COMMITTED:
|
|
case \Doctrine\DBAL\Connection::TRANSACTION_REPEATABLE_READ:
|
|
case \Doctrine\DBAL\Connection::TRANSACTION_SERIALIZABLE:
|
|
return 1;
|
|
default:
|
|
return parent::_getTransactionIsolationLevelSql($level);
|
|
}
|
|
}
|
|
|
|
public function getSetTransactionIsolationSql($level)
|
|
{
|
|
return 'PRAGMA read_uncommitted = ' . $this->_getTransactionIsolationLevelSql($level);
|
|
}
|
|
|
|
/** @override */
|
|
public function prefersIdentityColumns()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/** @override */
|
|
public function getIntegerTypeDeclarationSql(array $field)
|
|
{
|
|
return $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
/** @override */
|
|
public function getBigIntTypeDeclarationSql(array $field)
|
|
{
|
|
return $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
/** @override */
|
|
public function getTinyIntTypeDeclarationSql(array $field)
|
|
{
|
|
return $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
/** @override */
|
|
public function getSmallIntTypeDeclarationSql(array $field)
|
|
{
|
|
return $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
/** @override */
|
|
public function getMediumIntTypeDeclarationSql(array $field)
|
|
{
|
|
return $this->_getCommonIntegerTypeDeclarationSql($field);
|
|
}
|
|
|
|
/** @override */
|
|
public function getDateTimeTypeDeclarationSql(array $fieldDeclaration)
|
|
{
|
|
return 'DATETIME';
|
|
}
|
|
|
|
/** @override */
|
|
protected function _getCommonIntegerTypeDeclarationSql(array $columnDef)
|
|
{
|
|
$autoinc = ! empty($columnDef['autoincrement']) ? ' AUTOINCREMENT' : '';
|
|
$pk = ! empty($columnDef['primary']) && ! empty($autoinc) ? ' PRIMARY KEY' : '';
|
|
|
|
return 'INTEGER' . $pk . $autoinc;
|
|
}
|
|
|
|
/**
|
|
* create a new table
|
|
*
|
|
* @param string $name Name of the database that should be created
|
|
* @param array $fields Associative array that contains the definition of each field of the new table
|
|
* The indexes of the array entries are the names of the fields of the table an
|
|
* the array entry values are associative arrays like those that are meant to be
|
|
* passed with the field definitions to get[Type]Declaration() functions.
|
|
* array(
|
|
* 'id' => array(
|
|
* 'type' => 'integer',
|
|
* 'unsigned' => 1
|
|
* 'notnull' => 1
|
|
* 'default' => 0
|
|
* ),
|
|
* 'name' => array(
|
|
* 'type' => 'text',
|
|
* 'length' => 12
|
|
* ),
|
|
* 'password' => array(
|
|
* 'type' => 'text',
|
|
* 'length' => 12
|
|
* )
|
|
* );
|
|
* @param array $options An associative array of table options:
|
|
*
|
|
* @return void
|
|
* @override
|
|
*/
|
|
public function getCreateTableSql($name, array $fields, array $options = array())
|
|
{
|
|
if ( ! $name) {
|
|
throw DoctrineException::invalidTableName($name);
|
|
}
|
|
|
|
if (empty($fields)) {
|
|
throw DoctrineException::noFieldsSpecifiedForTable($name);
|
|
}
|
|
$queryFields = $this->getColumnDeclarationListSql($fields);
|
|
|
|
$autoinc = false;
|
|
foreach($fields as $field) {
|
|
if (isset($field['autoincrement']) && $field['autoincrement']) {
|
|
$autoinc = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( ! $autoinc && isset($options['primary']) && ! empty($options['primary'])) {
|
|
$keyColumns = array_unique(array_values($options['primary']));
|
|
$keyColumns = array_map(array($this, 'quoteIdentifier'), $keyColumns);
|
|
$queryFields.= ', PRIMARY KEY('.implode(', ', $keyColumns).')';
|
|
}
|
|
|
|
$name = $this->quoteIdentifier($name, true);
|
|
$sql = 'CREATE TABLE ' . $name . ' (' . $queryFields;
|
|
|
|
/*if ($check = $this->getCheckDeclarationSql($fields)) {
|
|
$sql .= ', ' . $check;
|
|
}
|
|
|
|
if (isset($options['checks']) && $check = $this->getCheckDeclarationSql($options['checks'])) {
|
|
$sql .= ', ' . $check;
|
|
}*/
|
|
|
|
$sql .= ')';
|
|
|
|
$query[] = $sql;
|
|
|
|
if (isset($options['indexes']) && ! empty($options['indexes'])) {
|
|
foreach ($options['indexes'] as $index => $definition) {
|
|
$query[] = $this->getCreateIndexSql($name, $index, $definition);
|
|
}
|
|
}
|
|
return $query;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function getVarcharTypeDeclarationSql(array $field)
|
|
{
|
|
if ( ! isset($field['length'])) {
|
|
if (array_key_exists('default', $field)) {
|
|
$field['length'] = $this->getVarcharMaxLength();
|
|
} else {
|
|
$field['length'] = false;
|
|
}
|
|
}
|
|
$length = ($field['length'] <= $this->getVarcharMaxLength()) ? $field['length'] : false;
|
|
$fixed = (isset($field['fixed'])) ? $field['fixed'] : false;
|
|
|
|
return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR(255)')
|
|
: ($length ? 'VARCHAR(' . $length . ')' : 'TEXT');
|
|
}
|
|
|
|
public function getListSequencesSql($database)
|
|
{
|
|
return "SELECT name FROM sqlite_master WHERE type='table' AND sql NOT NULL ORDER BY name";
|
|
}
|
|
|
|
public function getListTableConstraintsSql($table)
|
|
{
|
|
return "SELECT sql FROM sqlite_master WHERE type='index' AND tbl_name = '$table' AND sql NOT NULL ORDER BY name";
|
|
}
|
|
|
|
public function getListTableColumnsSql($table)
|
|
{
|
|
return "PRAGMA table_info($table)";
|
|
}
|
|
|
|
public function getListTableIndexesSql($table)
|
|
{
|
|
return "PRAGMA index_list($table)";
|
|
}
|
|
|
|
public function getListTablesSql()
|
|
{
|
|
return "SELECT name FROM sqlite_master WHERE type = 'table' AND name != 'sqlite_sequence' "
|
|
. "UNION ALL SELECT name FROM sqlite_temp_master "
|
|
. "WHERE type = 'table' ORDER BY name";
|
|
}
|
|
|
|
public function getListTableViews()
|
|
{
|
|
return "SELECT name, sql FROM sqlite_master WHERE type='view' AND sql NOT NULL";
|
|
}
|
|
|
|
public function getListViewsSql()
|
|
{
|
|
return "SELECT name, sql FROM sqlite_master WHERE type='view' AND sql NOT NULL";
|
|
}
|
|
|
|
public function getCreateViewSql($name, $sql)
|
|
{
|
|
return 'CREATE VIEW ' . $name . ' AS ' . $sql;
|
|
}
|
|
|
|
public function getDropViewSql($name)
|
|
{
|
|
return 'DROP VIEW '. $name;
|
|
}
|
|
|
|
/**
|
|
* SQLite does support foreign key constraints, but only in CREATE TABLE statements...
|
|
* This really limits their usefulness and requires SQLite specific handling, so
|
|
* we simply say that SQLite does NOT support foreign keys for now...
|
|
*
|
|
* @return boolean FALSE
|
|
* @override
|
|
*/
|
|
public function supportsForeignKeyConstraints()
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Get the platform name for this instance
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getName()
|
|
{
|
|
return 'sqlite';
|
|
}
|
|
} |