<?php
namespace RedBeanPHP\QueryWriter;
use RedBeanPHP\QueryWriter\AQueryWriter as AQueryWriter;
use RedBeanPHP\QueryWriter as QueryWriter;
use RedBeanPHP\Adapter\DBAdapter as DBAdapter;
use RedBeanPHP\Adapter as Adapter;
use RedBeanPHP\RedException\SQL as SQLException;
/**
* RedBeanPHP CUBRID Writer.
* This is a QueryWriter class for RedBeanPHP.
* This QueryWriter provides support for the CUBRID database platform.
*
* @file RedBeanPHP/QueryWriter/CUBRID.php
* @author Gabor de Mooij and the RedBeanPHP Community
* @license BSD/GPLv2
*
* @copyright
* (c) copyright G.J.G.T. (Gabor) de Mooij and the RedBeanPHP Community.
* This source file is subject to the BSD/GPLv2 License that is bundled
* with this source code in the file license.txt.
*/
class CUBRID extends AQueryWriter implements QueryWriter
{
/**
* Data types
*/
const C_DATATYPE_INTEGER = 0;
const C_DATATYPE_DOUBLE = 1;
const C_DATATYPE_STRING = 2;
const C_DATATYPE_SPECIAL_DATE = 80;
const C_DATATYPE_SPECIAL_DATETIME = 81;
const C_DATATYPE_SPECIFIED = 99;
/**
* @var DBAdapter
*/
protected $adapter;
/**
* @var string
*/
protected $quoteCharacter = '`';
/**
* This method adds a foreign key from type and field to
* target type and target field.
* The foreign key is created without an action. On delete/update
* no action will be triggered. The FK is only used to allow database
* tools to generate pretty diagrams and to make it easy to add actions
* later on.
* This methods accepts a type and infers the corresponding table name.
*
* @param string $type type that will have a foreign key field
* @param string $targetType points to this type
* @param string $property field that contains the foreign key value
* @param string $targetProperty field where the fk points to
* @param boolean $isDep is dependent
*
* @return bool
*/
protected function buildFK( $type, $targetType, $property, $targetProperty, $isDep = FALSE )
{
$table = $this->esc( $type );
$tableNoQ = $this->esc( $type, TRUE );
$targetTable = $this->esc( $targetType );
$targetTableNoQ = $this->esc( $targetType, TRUE );
$column = $this->esc( $property );
$columnNoQ = $this->esc( $property, TRUE );
$targetColumn = $this->esc( $targetProperty );
if ( !is_null( $this->getForeignKeyForTypeProperty( $tableNoQ, $columnNoQ ) ) ) return FALSE;
$needsToDropFK = FALSE;
$casc = ( $isDep ? 'CASCADE' : 'SET NULL' );
$sql = "ALTER TABLE $table ADD CONSTRAINT FOREIGN KEY($column) REFERENCES $targetTable($targetColumn) ON DELETE $casc ";
try {
$this->adapter->exec( $sql );
} catch( SQLException $e ) {
return FALSE;
}
return TRUE;
}
/**
* @see AQueryWriter::getKeyMapForType
*/
protected function getKeyMapForType( $type )
{
$sqlCode = $this->adapter->get("SHOW CREATE TABLE `{$type}`");
if (!isset($sqlCode[0])) return array();
$matches = array();
preg_match_all( '/CONSTRAINT\s+\[([\w_]+)\]\s+FOREIGN\s+KEY\s+\(\[([\w_]+)\]\)\s+REFERENCES\s+\[([\w_]+)\](\s+ON\s+DELETE\s+(CASCADE|SET\sNULL|RESTRICT|NO\sACTION)\s+ON\s+UPDATE\s+(SET\sNULL|RESTRICT|NO\sACTION))?/', $sqlCode[0]['CREATE TABLE'], $matches );
$list = array();
if (!isset($matches[0])) return $list;
$max = count($matches[0]);
for($i = 0; $i < $max; $i++) {
$label = $this->makeFKLabel( $matches[2][$i], $matches[3][$i], 'id' );
$list[ $label ] = array(
'name' => $matches[1][$i],
'from' => $matches[2][$i],
'table' => $matches[3][$i],
'to' => 'id',
'on_update' => $matches[6][$i],
'on_delete' => $matches[5][$i]
);
}
return $list;
}
/**
* Constructor
* Most of the time, you do not need to use this constructor,
* since the facade takes care of constructing and wiring the
* RedBeanPHP core objects. However if you would like to
* assemble an OODB instance yourself, this is how it works:
*
* Usage:
*
* <code>
* $database = new RPDO( $dsn, $user, $pass );
* $adapter = new DBAdapter( $database );
* $writer = new PostgresWriter( $adapter );
* $oodb = new OODB( $writer, FALSE );
* $bean = $oodb->dispense( 'bean' );
* $bean->name = 'coffeeBean';
* $id = $oodb->store( $bean );
* $bean = $oodb->load( 'bean', $id );
* </code>
*
* The example above creates the 3 RedBeanPHP core objects:
* the Adapter, the Query Writer and the OODB instance and
* wires them together. The example also demonstrates some of
* the methods that can be used with OODB, as you see, they
* closely resemble their facade counterparts.
*
* The wiring process: create an RPDO instance using your database
* connection parameters. Create a database adapter from the RPDO
* object and pass that to the constructor of the writer. Next,
* create an OODB instance from the writer. Now you have an OODB
* object.
*
* @param Adapter $adapter Database Adapter
*/
public function __construct( Adapter $adapter )
{
$this->typeno_sqltype = array(
CUBRID::C_DATATYPE_INTEGER => ' INTEGER ',
CUBRID::C_DATATYPE_DOUBLE => ' DOUBLE ',
CUBRID::C_DATATYPE_STRING => ' STRING ',
CUBRID::C_DATATYPE_SPECIAL_DATE => ' DATE ',
CUBRID::C_DATATYPE_SPECIAL_DATETIME => ' DATETIME ',
);
$this->sqltype_typeno = array();
foreach ( $this->typeno_sqltype as $k => $v ) {
$this->sqltype_typeno[trim( ( $v ) )] = $k;
}
$this->sqltype_typeno['STRING(1073741823)'] = self::C_DATATYPE_STRING;
$this->adapter = $adapter;
}
/**
* This method returns the datatype to be used for primary key IDS and
* foreign keys. Returns one if the data type constants.
*
* @return integer
*/
public function getTypeForID()
{
return self::C_DATATYPE_INTEGER;
}
/**
* @see QueryWriter::getTables
*/
public function getTables()
{
$rows = $this->adapter->getCol( "SELECT class_name FROM db_class WHERE is_system_class = 'NO';" );
return $rows;
}
/**
* @see QueryWriter::createTable
*/
public function createTable( $table )
{
$sql = 'CREATE TABLE '
. $this->esc( $table )
. ' ("id" integer AUTO_INCREMENT, CONSTRAINT "pk_'
. $this->esc( $table, TRUE )
. '_id" PRIMARY KEY("id"))';
$this->adapter->exec( $sql );
}
/**
* @see QueryWriter::getColumns
*/
public function getColumns( $table )
{
$table = $this->esc( $table );
$columnsRaw = $this->adapter->get( "SHOW COLUMNS FROM $table" );
$columns = array();
foreach ( $columnsRaw as $r ) {
$columns[$r['Field']] = $r['Type'];
}
return $columns;
}
/**
* @see QueryWriter::scanType
*/
public function scanType( $value, $flagSpecial = FALSE )
{
if ( is_null( $value ) ) {
return self::C_DATATYPE_INTEGER;
}
if ( $flagSpecial ) {
if ( preg_match( '/^\d{4}\-\d\d-\d\d$/', $value ) ) {
return self::C_DATATYPE_SPECIAL_DATE;
}
if ( preg_match( '/^\d{4}\-\d\d-\d\d\s\d\d:\d\d:\d\d$/', $value ) ) {
return self::C_DATATYPE_SPECIAL_DATETIME;
}
}
$value = strval( $value );
if ( !$this->startsWithZeros( $value ) ) {
if ( is_numeric( $value ) && ( floor( $value ) == $value ) && $value >= -2147483647 && $value <= 2147483647 ) {
return self::C_DATATYPE_INTEGER;
}
if ( is_numeric( $value ) ) {
return self::C_DATATYPE_DOUBLE;
}
}
return self::C_DATATYPE_STRING;
}
/**
* @see QueryWriter::code
*/
public function code( $typedescription, $includeSpecials = FALSE )
{
$r = ( ( isset( $this->sqltype_typeno[$typedescription] ) ) ? $this->sqltype_typeno[$typedescription] : self::C_DATATYPE_SPECIFIED );
if ( $includeSpecials ) {
return $r;
}
if ( $r >= QueryWriter::C_DATATYPE_RANGE_SPECIAL ) {
return self::C_DATATYPE_SPECIFIED;
}
return $r;
}
/**
* @see QueryWriter::addColumn
*/
public function addColumn( $type, $column, $field )
{
$table = $type;
$type = $field;
$table = $this->esc( $table );
$column = $this->esc( $column );
$type = array_key_exists( $type, $this->typeno_sqltype ) ? $this->typeno_sqltype[$type] : '';
$this->adapter->exec( "ALTER TABLE $table ADD COLUMN $column $type " );
}
/**
* @see QueryWriter::addUniqueIndex
*/
public function addUniqueConstraint( $type, $properties )
{
$tableNoQ = $this->esc( $type, TRUE );
$columns = array();
foreach( $properties as $key => $column ) $columns[$key] = $this->esc( $column );
$table = $this->esc( $type );
sort( $columns ); // else we get multiple indexes due to order-effects
$name = 'UQ_' . sha1( implode( ',', $columns ) );
$sql = "ALTER TABLE $table ADD CONSTRAINT UNIQUE $name (" . implode( ',', $columns ) . ")";
try {
$this->adapter->exec( $sql );
} catch( SQLException $e ) {
return FALSE;
}
return TRUE;
}
/**
* @see QueryWriter::sqlStateIn
*/
public function sqlStateIn( $state, $list, $extraDriverDetails = array() )
{
return ( $state == 'HY000' ) ? ( count( array_diff( array(
QueryWriter::C_SQLSTATE_INTEGRITY_CONSTRAINT_VIOLATION,
QueryWriter::C_SQLSTATE_NO_SUCH_COLUMN,
QueryWriter::C_SQLSTATE_NO_SUCH_TABLE
), $list ) ) !== 3 ) : FALSE;
}
/**
* @see QueryWriter::addIndex
*/
public function addIndex( $type, $name, $column )
{
try {
$table = $this->esc( $type );
$name = preg_replace( '/\W/', '', $name );
$column = $this->esc( $column );
$this->adapter->exec( "CREATE INDEX $name ON $table ($column) " );
return TRUE;
} catch ( SQLException $e ) {
return FALSE;
}
}
/**
* @see QueryWriter::addFK
*/
public function addFK( $type, $targetType, $property, $targetProperty, $isDependent = FALSE )
{
return $this->buildFK( $type, $targetType, $property, $targetProperty, $isDependent );
}
/**
* @see QueryWriter::wipeAll
*/
public function wipeAll()
{
if (AQueryWriter::$noNuke) throw new \Exception('The nuke() command has been disabled using noNuke() or R::feature(novice/...).');
foreach ( $this->getTables() as $t ) {
foreach ( $this->getKeyMapForType( $t ) as $k ) {
$this->adapter->exec( "ALTER TABLE \"$t\" DROP FOREIGN KEY \"{$k['name']}\"" );
}
}
foreach ( $this->getTables() as $t ) {
$this->adapter->exec( "DROP TABLE \"$t\"" );
}
}
/**
* @see QueryWriter::esc
*/
public function esc( $dbStructure, $noQuotes = FALSE )
{
return parent::esc( strtolower( $dbStructure ), $noQuotes );
}
}
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