doctrine · morozov · Apr 13, 2020 · Mar 26, 2018
diff --git a/UPGRADE.md b/UPGRADE.md
@@ -1,5 +1,13 @@
 # Upgrade to 3.0
 
+## BC BREAK: Dropped support for `FetchMode::CUSTOM_OBJECT` and `::STANDARD_OBJECT`
+
+Instead of fetching an object, fetch an array and map it to an object of the desired class.
+
+## BC BREAK: Dropped support for the `$columnIndex` argument in `ResultStatement::fetchColumn()`, other `ResultStatement::fetch*()` methods invoked with `FetchMode::COLUMN` and `Connection::fetchColumn()`.
+
+In order to fetch a column with an index other than `0`, use `FetchMode::NUMERIC` and the array element with the corresponding index.
+
 ## BC BREAK: Removed `EchoSQLLogger`
 
 `EchoSQLLogger` is no longer available as part of the package.

diff --git a/phpstan.neon.dist b/phpstan.neon.dist
@@ -98,12 +98,6 @@ parameters:
                 - %currentWorkingDirectory%/src/Query/QueryBuilder.php
                 - %currentWorkingDirectory%/src/Schema/*SchemaManager.php
 
-        # FetchMode::CUSTOM_OBJECT requires variable property access
-        -
-            message: '~^Variable property access on object\.~'
-            paths:
-                - %currentWorkingDirectory%/src/Driver/*/*Statement.php
-
         # Some APIs use variable method calls internally
         -
             message: '~^Variable method call on .*~'

diff --git a/src/Cache/ArrayStatement.php b/src/Cache/ArrayStatement.php
@@ -60,12 +60,8 @@ public function columnCount()
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
-        if (count($args) > 0) {
-            throw new InvalidArgumentException('Caching layer does not support 2nd/3rd argument to setFetchMode()');
-        }
-
         $this->defaultFetchMode = $fetchMode;
 
         return true;
@@ -84,7 +80,7 @@ public function getIterator()
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         if (! isset($this->data[$this->num])) {
             return false;
@@ -115,10 +111,10 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
         $rows = [];
-        while ($row = $this->fetch($fetchMode, ...$args)) {
+        while ($row = $this->fetch($fetchMode)) {
             $rows[] = $row;
         }
 
@@ -128,11 +124,11 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         $row = $this->fetch(FetchMode::NUMERIC);
 
         // TODO: verify that return false is the correct behavior
-        return $row[$columnIndex] ?? false;
+        return $row[0] ?? false;
     }
 }
diff --git a/src/Cache/ResultCacheStatement.php b/src/Cache/ResultCacheStatement.php
@@ -104,7 +104,7 @@ public function columnCount()
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
         $this->defaultFetchMode = $fetchMode;
 
@@ -124,7 +124,7 @@ public function getIterator()
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         if ($this->data === null) {
             $this->data = [];
@@ -164,9 +164,9 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
-        $data = $this->statement->fetchAll($fetchMode, ...$args);
+        $data = $this->statement->fetchAll($fetchMode);
 
         if ($fetchMode === FetchMode::COLUMN) {
             foreach ($data as $key => $value) {
@@ -183,12 +183,12 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         $row = $this->fetch(FetchMode::NUMERIC);
 
         // TODO: verify that return false is the correct behavior
-        return $row[$columnIndex] ?? false;
+        return $row[0] ?? false;
     }
 
     /**

diff --git a/src/Connection.php b/src/Connection.php
@@ -570,16 +570,15 @@ public function fetchArray($statement, array $params = [], array $types = [])
      *
      * @param string         $statement The SQL query to be executed.
      * @param mixed[]        $params    The prepared statement params.
-     * @param int            $column    The 0-indexed column number to retrieve.
      * @param int[]|string[] $types     The query parameter types.
      *
      * @return mixed|false False is returned if no rows are found.
      *
      * @throws DBALException
      */
-    public function fetchColumn($statement, array $params = [], $column = 0, array $types = [])
+    public function fetchColumn($statement, array $params = [], array $types = [])
     {
-        return $this->executeQuery($statement, $params, $types)->fetchColumn($column);
+        return $this->executeQuery($statement, $params, $types)->fetchColumn();
     }
 
     /**

diff --git a/src/Driver/IBMDB2/DB2Statement.php b/src/Driver/IBMDB2/DB2Statement.php
@@ -7,25 +7,17 @@
 use Doctrine\DBAL\FetchMode;
 use Doctrine\DBAL\ParameterType;
 use IteratorAggregate;
-use ReflectionClass;
-use ReflectionObject;
-use ReflectionProperty;
-use stdClass;
-use const CASE_LOWER;
 use const DB2_BINARY;
 use const DB2_CHAR;
 use const DB2_LONG;
 use const DB2_PARAM_FILE;
 use const DB2_PARAM_IN;
-use function array_change_key_case;
 use function assert;
-use function count;
 use function db2_bind_param;
 use function db2_execute;
 use function db2_fetch_array;
 use function db2_fetch_assoc;
 use function db2_fetch_both;
-use function db2_fetch_object;
 use function db2_free_result;
 use function db2_num_fields;
 use function db2_num_rows;
@@ -34,16 +26,11 @@
 use function error_get_last;
 use function fclose;
 use function fwrite;
-use function gettype;
 use function is_int;
-use function is_object;
 use function is_resource;
-use function is_string;
 use function ksort;
-use function sprintf;
 use function stream_copy_to_stream;
 use function stream_get_meta_data;
-use function strtolower;
 use function tmpfile;
 
 class DB2Statement implements IteratorAggregate, Statement
@@ -62,12 +49,6 @@ class DB2Statement implements IteratorAggregate, Statement
      */
     private $lobs = [];
 
-    /** @var string Name of the default class to instantiate when fetching class instances. */
-    private $defaultFetchClass = '\stdClass';
-
-    /** @var mixed[] Constructor arguments for the default class to instantiate when fetching class instances. */
-    private $defaultFetchClassCtorArgs = [];
-
     /** @var int */
     private $defaultFetchMode = FetchMode::MIXED;
 
@@ -237,18 +218,10 @@ public function execute($params = null)
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
         $this->defaultFetchMode = $fetchMode;
 
-        if (isset($args[0])) {
-            $this->defaultFetchClass = $args[0];
-        }
-
-        if (isset($args[1])) {
-            $this->defaultFetchClassCtorArgs = (array) $args[1];
-        }
-
         return true;
     }
 
@@ -263,7 +236,7 @@ public function getIterator()
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         // do not try fetching from the statement if it's not expected to contain result
         // in order to prevent exceptional situation
@@ -282,29 +255,9 @@ public function fetch($fetchMode = null, ...$args)
             case FetchMode::ASSOCIATIVE:
                 return db2_fetch_assoc($this->stmt);
 
-            case FetchMode::CUSTOM_OBJECT:
-                $className = $this->defaultFetchClass;
-                $ctorArgs  = $this->defaultFetchClassCtorArgs;
-
-                if (count($args) > 0) {
-                    $className = $args[0];
-                    $ctorArgs  = $args[1] ?? [];
-                }
-
-                $result = db2_fetch_object($this->stmt);
-
-                if ($result instanceof stdClass) {
-                    $result = $this->castObject($result, $className, $ctorArgs);
-                }
-
-                return $result;
-
             case FetchMode::NUMERIC:
                 return db2_fetch_array($this->stmt);
 
-            case FetchMode::STANDARD_OBJECT:
-                return db2_fetch_object($this->stmt);
-
             default:
                 throw new DB2Exception('Given Fetch-Style ' . $fetchMode . ' is not supported.');
         }
@@ -313,16 +266,11 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
         $rows = [];
 
         switch ($fetchMode) {
-            case FetchMode::CUSTOM_OBJECT:
-                while (($row = $this->fetch($fetchMode, ...$args)) !== false) {
-                    $rows[] = $row;
-                }
-                break;
             case FetchMode::COLUMN:
                 while (($row = $this->fetchColumn()) !== false) {
                     $rows[] = $row;
@@ -340,15 +288,15 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         $row = $this->fetch(FetchMode::NUMERIC);
 
         if ($row === false) {
             return false;
         }
 
-        return $row[$columnIndex] ?? null;
+        return $row[0] ?? null;
     }
 
     /**
@@ -359,71 +307,6 @@ public function rowCount() : int
         return @db2_num_rows($this->stmt);
     }
 
-    /**
-     * Casts a stdClass object to the given class name mapping its' properties.
-     *
-     * @param stdClass      $sourceObject     Object to cast from.
-     * @param string|object $destinationClass Name of the class or class instance to cast to.
-     * @param mixed[]       $ctorArgs         Arguments to use for constructing the destination class instance.
-     *
-     * @return object
-     *
-     * @throws DB2Exception
-     */
-    private function castObject(stdClass $sourceObject, $destinationClass, array $ctorArgs = [])
-    {
-        if (! is_string($destinationClass)) {
-            if (! is_object($destinationClass)) {
-                throw new DB2Exception(sprintf(
-                    'Destination class has to be of type string or object, %s given.',
-                    gettype($destinationClass)
-                ));
-            }
-        } else {
-            $destinationClass = new ReflectionClass($destinationClass);
-            $destinationClass = $destinationClass->newInstanceArgs($ctorArgs);
-        }
-
-        $sourceReflection           = new ReflectionObject($sourceObject);
-        $destinationClassReflection = new ReflectionObject($destinationClass);
-        /** @var ReflectionProperty[] $destinationProperties */
-        $destinationProperties = array_change_key_case($destinationClassReflection->getProperties(), CASE_LOWER);
-
-        foreach ($sourceReflection->getProperties() as $sourceProperty) {
-            $sourceProperty->setAccessible(true);
-
-            $name  = $sourceProperty->getName();
-            $value = $sourceProperty->getValue($sourceObject);
-
-            // Try to find a case-matching property.
-            if ($destinationClassReflection->hasProperty($name)) {
-                $destinationProperty = $destinationClassReflection->getProperty($name);
-
-                $destinationProperty->setAccessible(true);
-                $destinationProperty->setValue($destinationClass, $value);
-
-                continue;
-            }
-
-            $name = strtolower($name);
-
-            // Try to find a property without matching case.
-            // Fallback for the driver returning either all uppercase or all lowercase column names.
-            if (isset($destinationProperties[$name])) {
-                $destinationProperty = $destinationProperties[$name];
-
-                $destinationProperty->setAccessible(true);
-                $destinationProperty->setValue($destinationClass, $value);
-
-                continue;
-            }
-
-            $destinationClass->$name = $value;
-        }
-
-        return $destinationClass;
-    }
-
     /**
      * @return resource
      *