--- /dev/null
+<?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 MySQLWriter.
+ * This is a QueryWriter class for RedBeanPHP.
+ * This QueryWriter provides support for the MySQL/MariaDB database platform.
+ *
+ * @file RedBeanPHP/QueryWriter/MySQL.php
+ * @author Gabor de Mooij and the RedBeanPHP Community
+ * @license BSD/GPLv2
+ *
+ * @copyright
+ * (c) 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 MySQL extends AQueryWriter implements QueryWriter
+{
+ /**
+ * Data types
+ */
+ const C_DATATYPE_BOOL = 0;
+ const C_DATATYPE_UINT32 = 2;
+ const C_DATATYPE_DOUBLE = 3;
+ const C_DATATYPE_TEXT7 = 4; //InnoDB cant index varchar(255) utf8mb4 - so keep 191 as long as possible
+ const C_DATATYPE_TEXT8 = 5;
+ const C_DATATYPE_TEXT16 = 6;
+ const C_DATATYPE_TEXT32 = 7;
+ const C_DATATYPE_SPECIAL_DATE = 80;
+ const C_DATATYPE_SPECIAL_DATETIME = 81;
+ const C_DATATYPE_SPECIAL_POINT = 90;
+ const C_DATATYPE_SPECIAL_LINESTRING = 91;
+ const C_DATATYPE_SPECIAL_POLYGON = 92;
+ const C_DATATYPE_SPECIAL_MONEY = 93;
+
+ const C_DATATYPE_SPECIFIED = 99;
+
+ /**
+ * @var DBAdapter
+ */
+ protected $adapter;
+
+ /**
+ * @var string
+ */
+ protected $quoteCharacter = '`';
+
+ /**
+ * @see AQueryWriter::getKeyMapForType
+ */
+ protected function getKeyMapForType( $type )
+ {
+ $databaseName = $this->adapter->getCell('SELECT DATABASE()');
+ $table = $this->esc( $type, TRUE );
+ $keys = $this->adapter->get('
+ SELECT
+ information_schema.key_column_usage.constraint_name AS `name`,
+ information_schema.key_column_usage.referenced_table_name AS `table`,
+ information_schema.key_column_usage.column_name AS `from`,
+ information_schema.key_column_usage.referenced_column_name AS `to`,
+ information_schema.referential_constraints.update_rule AS `on_update`,
+ information_schema.referential_constraints.delete_rule AS `on_delete`
+ FROM information_schema.key_column_usage
+ INNER JOIN information_schema.referential_constraints
+ ON information_schema.referential_constraints.constraint_name = information_schema.key_column_usage.constraint_name
+ WHERE
+ information_schema.key_column_usage.table_schema = :database
+ AND information_schema.referential_constraints.constraint_schema = :database
+ AND information_schema.key_column_usage.constraint_schema = :database
+ AND information_schema.key_column_usage.table_name = :table
+ AND information_schema.key_column_usage.constraint_name != \'PRIMARY\'
+ AND information_schema.key_column_usage.referenced_table_name IS NOT NULL
+ ', array( ':database' => $databaseName, ':table' => $table ) );
+ $keyInfoList = array();
+ foreach ( $keys as $k ) {
+ $label = $this->makeFKLabel( $k['from'], $k['table'], $k['to'] );
+ $keyInfoList[$label] = array(
+ 'name' => $k['name'],
+ 'from' => $k['from'],
+ 'table' => $k['table'],
+ 'to' => $k['to'],
+ 'on_update' => $k['on_update'],
+ 'on_delete' => $k['on_delete']
+ );
+ }
+ return $keyInfoList;
+ }
+
+ /**
+ * Constructor
+ *
+ * @param Adapter $adapter Database Adapter
+ */
+ public function __construct( Adapter $adapter )
+ {
+ $this->typeno_sqltype = array(
+ MySQL::C_DATATYPE_BOOL => ' TINYINT(1) UNSIGNED ',
+ MySQL::C_DATATYPE_UINT32 => ' INT(11) UNSIGNED ',
+ MySQL::C_DATATYPE_DOUBLE => ' DOUBLE ',
+ MySQL::C_DATATYPE_TEXT7 => ' VARCHAR(191) ',
+ MYSQL::C_DATATYPE_TEXT8 => ' VARCHAR(255) ',
+ MySQL::C_DATATYPE_TEXT16 => ' TEXT ',
+ MySQL::C_DATATYPE_TEXT32 => ' LONGTEXT ',
+ MySQL::C_DATATYPE_SPECIAL_DATE => ' DATE ',
+ MySQL::C_DATATYPE_SPECIAL_DATETIME => ' DATETIME ',
+ MySQL::C_DATATYPE_SPECIAL_POINT => ' POINT ',
+ MySQL::C_DATATYPE_SPECIAL_LINESTRING => ' LINESTRING ',
+ MySQL::C_DATATYPE_SPECIAL_POLYGON => ' POLYGON ',
+ MySQL::C_DATATYPE_SPECIAL_MONEY => ' DECIMAL(10,2) '
+ );
+
+ $this->sqltype_typeno = array();
+
+ foreach ( $this->typeno_sqltype as $k => $v ) {
+ $this->sqltype_typeno[trim( strtolower( $v ) )] = $k;
+ }
+
+ $this->adapter = $adapter;
+
+ $this->encoding = $this->adapter->getDatabase()->getMysqlEncoding();
+ }
+
+ /**
+ * 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_UINT32;
+ }
+
+ /**
+ * @see QueryWriter::getTables
+ */
+ public function getTables()
+ {
+ return $this->adapter->getCol( 'show tables' );
+ }
+
+ /**
+ * @see QueryWriter::createTable
+ */
+ public function createTable( $table )
+ {
+ $table = $this->esc( $table );
+
+ $encoding = $this->adapter->getDatabase()->getMysqlEncoding();
+ $sql = "CREATE TABLE $table (id INT( 11 ) UNSIGNED NOT NULL AUTO_INCREMENT, PRIMARY KEY ( id )) ENGINE = InnoDB DEFAULT CHARSET={$encoding} COLLATE={$encoding}_unicode_ci ";
+
+ $this->adapter->exec( $sql );
+ }
+
+ /**
+ * @see QueryWriter::getColumns
+ */
+ public function getColumns( $table )
+ {
+ $columnsRaw = $this->adapter->get( "DESCRIBE " . $this->esc( $table ) );
+
+ $columns = array();
+ foreach ( $columnsRaw as $r ) {
+ $columns[$r['Field']] = $r['Type'];
+ }
+
+ return $columns;
+ }
+
+ /**
+ * @see QueryWriter::scanType
+ */
+ public function scanType( $value, $flagSpecial = FALSE )
+ {
+ $this->svalue = $value;
+
+ if ( is_null( $value ) ) return MySQL::C_DATATYPE_BOOL;
+ if ( $value === INF ) return MySQL::C_DATATYPE_TEXT7;
+
+ if ( $flagSpecial ) {
+ if ( preg_match( '/^-?\d+\.\d{2}$/', $value ) ) {
+ return MySQL::C_DATATYPE_SPECIAL_MONEY;
+ }
+ if ( preg_match( '/^\d{4}\-\d\d-\d\d$/', $value ) ) {
+ return MySQL::C_DATATYPE_SPECIAL_DATE;
+ }
+ if ( preg_match( '/^\d{4}\-\d\d-\d\d\s\d\d:\d\d:\d\d$/', $value ) ) {
+ return MySQL::C_DATATYPE_SPECIAL_DATETIME;
+ }
+ if ( preg_match( '/^POINT\(/', $value ) ) {
+ return MySQL::C_DATATYPE_SPECIAL_POINT;
+ }
+ if ( preg_match( '/^LINESTRING\(/', $value ) ) {
+ return MySQL::C_DATATYPE_SPECIAL_LINESTRING;
+ }
+ if ( preg_match( '/^POLYGON\(/', $value ) ) {
+ return MySQL::C_DATATYPE_SPECIAL_POLYGON;
+ }
+ }
+
+ //setter turns TRUE FALSE into 0 and 1 because database has no real bools (TRUE and FALSE only for test?).
+ if ( $value === FALSE || $value === TRUE || $value === '0' || $value === '1' ) {
+ return MySQL::C_DATATYPE_BOOL;
+ }
+
+ if ( is_float( $value ) ) return self::C_DATATYPE_DOUBLE;
+
+ if ( !$this->startsWithZeros( $value ) ) {
+
+ if ( is_numeric( $value ) && ( floor( $value ) == $value ) && $value >= 0 && $value <= 4294967295 ) {
+ return MySQL::C_DATATYPE_UINT32;
+ }
+
+ if ( is_numeric( $value ) ) {
+ return MySQL::C_DATATYPE_DOUBLE;
+ }
+ }
+
+ if ( mb_strlen( $value, 'UTF-8' ) <= 191 ) {
+ return MySQL::C_DATATYPE_TEXT7;
+ }
+
+ if ( mb_strlen( $value, 'UTF-8' ) <= 255 ) {
+ return MySQL::C_DATATYPE_TEXT8;
+ }
+
+ if ( mb_strlen( $value, 'UTF-8' ) <= 65535 ) {
+ return MySQL::C_DATATYPE_TEXT16;
+ }
+
+ return MySQL::C_DATATYPE_TEXT32;
+ }
+
+ /**
+ * @see QueryWriter::code
+ */
+ public function code( $typedescription, $includeSpecials = FALSE )
+ {
+ if ( isset( $this->sqltype_typeno[$typedescription] ) ) {
+ $r = $this->sqltype_typeno[$typedescription];
+ } else {
+ $r = self::C_DATATYPE_SPECIFIED;
+ }
+
+ if ( $includeSpecials ) {
+ return $r;
+ }
+
+ if ( $r >= QueryWriter::C_DATATYPE_RANGE_SPECIAL ) {
+ return self::C_DATATYPE_SPECIFIED;
+ }
+
+ return $r;
+ }
+
+ /**
+ * @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 ) );
+ try {
+ $sql = "ALTER TABLE $table
+ ADD UNIQUE INDEX $name (" . implode( ',', $columns ) . ")";
+ $this->adapter->exec( $sql );
+ } catch ( SQLException $e ) {
+ //do nothing, dont use alter table ignore, this will delete duplicate records in 3-ways!
+ return FALSE;
+ }
+ return TRUE;
+ }
+
+ /**
+ * @see QueryWriter::addIndex
+ */
+ public function addIndex( $type, $name, $property )
+ {
+ try {
+ $table = $this->esc( $type );
+ $name = preg_replace( '/\W/', '', $name );
+ $column = $this->esc( $property );
+ $this->adapter->exec( "CREATE INDEX $name ON $table ($column) " );
+ return TRUE;
+ } catch ( SQLException $e ) {
+ return FALSE;
+ }
+ }
+
+ /**
+ * @see QueryWriter::addFK
+ * @return bool
+ */
+ public function addFK( $type, $targetType, $property, $targetProperty, $isDependent = FALSE )
+ {
+ $table = $this->esc( $type );
+ $targetTable = $this->esc( $targetType );
+ $targetTableNoQ = $this->esc( $targetType, TRUE );
+ $field = $this->esc( $property );
+ $fieldNoQ = $this->esc( $property, TRUE );
+ $targetField = $this->esc( $targetProperty );
+ $targetFieldNoQ = $this->esc( $targetProperty, TRUE );
+ $tableNoQ = $this->esc( $type, TRUE );
+ $fieldNoQ = $this->esc( $property, TRUE );
+ if ( !is_null( $this->getForeignKeyForTypeProperty( $tableNoQ, $fieldNoQ ) ) ) return FALSE;
+
+ //Widen the column if it's incapable of representing a foreign key (at least INT).
+ $columns = $this->getColumns( $tableNoQ );
+ $idType = $this->getTypeForID();
+ if ( $this->code( $columns[$fieldNoQ] ) !== $idType ) {
+ $this->widenColumn( $type, $property, $idType );
+ }
+
+ $fkName = 'fk_'.($tableNoQ.'_'.$fieldNoQ);
+ $cName = 'c_'.$fkName;
+ try {
+ $this->adapter->exec( "
+ ALTER TABLE {$table}
+ ADD CONSTRAINT $cName
+ FOREIGN KEY $fkName ( `{$fieldNoQ}` ) REFERENCES `{$targetTableNoQ}`
+ (`{$targetFieldNoQ}`) ON DELETE " . ( $isDependent ? 'CASCADE' : 'SET NULL' ) . ' ON UPDATE '.( $isDependent ? 'CASCADE' : 'SET NULL' ).';');
+ } catch ( SQLException $e ) {
+ // Failure of fk-constraints is not a problem
+ }
+ return true;
+ }
+
+ /**
+ * @see QueryWriter::sqlStateIn
+ */
+ public function sqlStateIn( $state, $list )
+ {
+ $stateMap = array(
+ '42S02' => QueryWriter::C_SQLSTATE_NO_SUCH_TABLE,
+ '42S22' => QueryWriter::C_SQLSTATE_NO_SUCH_COLUMN,
+ '23000' => QueryWriter::C_SQLSTATE_INTEGRITY_CONSTRAINT_VIOLATION
+ );
+
+ return in_array( ( isset( $stateMap[$state] ) ? $stateMap[$state] : '0' ), $list );
+ }
+
+ /**
+ * @see QueryWriter::wipeAll
+ */
+ public function wipeAll()
+ {
+ $this->adapter->exec( 'SET FOREIGN_KEY_CHECKS = 0;' );
+
+ foreach ( $this->getTables() as $t ) {
+ try {
+ $this->adapter->exec( "DROP TABLE IF EXISTS `$t`" );
+ } catch ( SQLException $e ) {
+ }
+
+ try {
+ $this->adapter->exec( "DROP VIEW IF EXISTS `$t`" );
+ } catch ( SQLException $e ) {
+ }
+ }
+
+ $this->adapter->exec( 'SET FOREIGN_KEY_CHECKS = 1;' );
+ }
+}
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