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[yaffs-website] / vendor / gabordemooij / redbean / RedBeanPHP / QueryWriter / CUBRID.php
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+<?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  bool $isDep
+        *
+        * @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
+        *
+        * @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 )
+       {
+               $this->svalue = $value;
+
+               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 )
+       {
+               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()
+       {
+               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 );
+       }
+
+       /**
+        * @see QueryWriter::inferFetchType
+        */
+       public function inferFetchType( $type, $property )
+       {
+               $table = $this->esc( $type, TRUE );
+               $field = $this->esc( $property, TRUE ) . '_id';
+               $keys = $this->getKeyMapForType( $table );
+
+               foreach( $keys as $key ) {
+                       if (
+                               $key['from'] === $field
+                       ) return $key['table'];
+               }
+               return NULL;
+       }
+}