DboSource::value() - Code Metrics - reginaldojunior/winners - Measure and Improve Code Quality continuously with Scrutinizer

DboSource::value() D
last analyzed 2017-12-09 17:38 UTC

↳ Parent: DboSource
Complexity

Conditions	24
Paths	38
Size

Total Lines	48
Code Lines	34
Duplication

Lines	0
Ratio	0 %
Importance

Changes
Metric	Value
cc	24
eloc	34
c	0
b	0
f	0
nc	38
nop	2
dl	0
loc	48
rs	4.869
How to fix Complexity

<?php
/**
 * Dbo Source
 *
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP(tm) Project
 * @package       Cake.Model.Datasource
 * @since         CakePHP(tm) v 0.10.0.1076
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 */

App::uses('DataSource', 'Model/Datasource');
App::uses('String', 'Utility');
App::uses('View', 'View');

/**
 * DboSource
 *
 * Creates DBO-descendant objects from a given db connection configuration
 *
 * @package       Cake.Model.Datasource
 */
class DboSource extends DataSource {

/**
 * Description string for this Database Data Source.
 *
 * @var string
 */
	public $description = "Database Data Source";

/**
 * index definition, standard cake, primary, index, unique
 *
 * @var array
 */
	public $index = array('PRI' => 'primary', 'MUL' => 'index', 'UNI' => 'unique');

/**
 * Database keyword used to assign aliases to identifiers.
 *
 * @var string
 */
	public $alias = 'AS ';

/**
 * Caches result from query parsing operations. Cached results for both DboSource::name() and
 * DboSource::conditions() will be stored here. Method caching uses `md5()`. If you have
 * problems with collisions, set DboSource::$cacheMethods to false.
 *
 * @var array
 */
	public static $methodCache = array();

/**
 * Whether or not to cache the results of DboSource::name() and DboSource::conditions()
 * into the memory cache. Set to false to disable the use of the memory cache.
 *
 * @var boolean
 */
	public $cacheMethods = true;

/**
 * Flag to support nested transactions. If it is set to false, you will be able to use
 * the transaction methods (begin/commit/rollback), but just the global transaction will
 * be executed.
 *
 * @var boolean
 */
	public $useNestedTransactions = false;

/**
 * Print full query debug info?
 *
 * @var boolean
 */
	public $fullDebug = false;

/**
 * String to hold how many rows were affected by the last SQL operation.
 *
 * @var string
 */
	public $affected = null;

/**
 * Number of rows in current resultset
 *
 * @var integer
 */
	public $numRows = null;

/**
 * Time the last query took
 *
 * @var integer
 */
	public $took = null;

/**
 * Result
 *
 * @var array
 */
	protected $_result = null;

/**
 * Queries count.
 *
 * @var integer
 */
	protected $_queriesCnt = 0;

/**
 * Total duration of all queries.
 *
 * @var integer
 */
	protected $_queriesTime = null;

/**
 * Log of queries executed by this DataSource
 *
 * @var array
 */
	protected $_queriesLog = array();

/**
 * Maximum number of items in query log
 *
 * This is to prevent query log taking over too much memory.
 *
 * @var integer Maximum number of queries in the queries log.
 */
	protected $_queriesLogMax = 200;

/**
 * Caches serialized results of executed queries
 *
 * @var array Cache of results from executed sql queries.
 */
	protected $_queryCache = array();

/**
 * A reference to the physical connection of this DataSource
 *
 * @var array
 */
	protected $_connection = null;

/**
 * The DataSource configuration key name
 *
 * @var string
 */
	public $configKeyName = null;

/**
 * The starting character that this DataSource uses for quoted identifiers.
 *
 * @var string
 */
	public $startQuote = null;

/**
 * The ending character that this DataSource uses for quoted identifiers.
 *
 * @var string
 */
	public $endQuote = null;

/**
 * The set of valid SQL operations usable in a WHERE statement
 *
 * @var array
 */
	protected $_sqlOps = array('like', 'ilike', 'or', 'not', 'in', 'between', 'regexp', 'similar to');

/**
 * Indicates the level of nested transactions
 *
 * @var integer
 */
	protected $_transactionNesting = 0;

/**
 * Default fields that are used by the DBO
 *
 * @var array
 */
	protected $_queryDefaults = array(
		'conditions' => array(),
		'fields' => null,
		'table' => null,
		'alias' => null,
		'order' => null,
		'limit' => null,
		'joins' => array(),
		'group' => null,
		'offset' => null
	);

/**
 * Separator string for virtualField composition
 *
 * @var string
 */
	public $virtualFieldSeparator = '__';

/**
 * List of table engine specific parameters used on table creating
 *
 * @var array
 */
	public $tableParameters = array();

/**
 * List of engine specific additional field parameters used on table creating
 *
 * @var array
 */
	public $fieldParameters = array();

/**
 * Indicates whether there was a change on the cached results on the methods of this class
 * This will be used for storing in a more persistent cache
 *
 * @var boolean
 */
	protected $_methodCacheChange = false;

/**
 * Constructor
 *
 * @param array $config Array of configuration information for the Datasource.
 * @param boolean $autoConnect Whether or not the datasource should automatically connect.
 * @throws MissingConnectionException when a connection cannot be made.
 */
	public function __construct($config = null, $autoConnect = true) {
		if (!isset($config['prefix'])) {
			$config['prefix'] = '';
		}
		parent::__construct($config);
		$this->fullDebug = Configure::read('debug') > 1;
		if (!$this->enabled()) {
			throw new MissingConnectionException(array(
				'class' => get_class($this),
				'message' => __d('cake_dev', 'Selected driver is not enabled'),
				'enabled' => false
			));
		}
		if ($autoConnect) {
			$this->connect();

		}
	}

/**
 * Reconnects to database server with optional new settings
 *
 * @param array $config An array defining the new configuration settings
 * @return boolean True on success, false on failure
 */
	public function reconnect($config = array()) {
		$this->disconnect();
		$this->setConfig($config);
		$this->_sources = null;


		return $this->connect();

	}

/**
 * Disconnects from database.
 *
 * @return boolean Always true
 */
	public function disconnect() {
		if ($this->_result instanceof PDOStatement) {
			$this->_result->closeCursor();
		}
		unset($this->_connection);
		$this->connected = false;
		return true;
	}

/**
 * Get the underlying connection object.
 *
 * @return PDO
 */
	public function getConnection() {
		return $this->_connection;
	}

/**
 * Gets the version string of the database server
 *
 * @return string The database version
 */
	public function getVersion() {
		return $this->_connection->getAttribute(PDO::ATTR_SERVER_VERSION);

	}

/**
 * Returns a quoted and escaped string of $data for use in an SQL statement.
 *
 * @param string $data String to be prepared for use in an SQL statement
 * @param string $column The column datatype into which this data will be inserted.
 * @return string Quoted and escaped data
 */
	public function value($data, $column = null) {
		if (is_array($data) && !empty($data)) {
			return array_map(
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
				array(&$this, 'value'),
				$data, array_fill(0, count($data), $column)
			);
		} elseif (is_object($data) && isset($data->type, $data->value)) {
			if ($data->type === 'identifier') {
				return $this->name($data->value);
			} elseif ($data->type === 'expression') {
				return $data->value;
			}
		} elseif (in_array($data, array('{$__cakeID__$}', '{$__cakeForeignKey__$}'), true)) {
			return $data;

		}

		if ($data === null || (is_array($data) && empty($data))) {
			return 'NULL';
		}

		if (empty($column)) {
			$column = $this->introspectType($data);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
		}

		switch ($column) {
			case 'binary':
				return $this->_connection->quote($data, PDO::PARAM_LOB);

			case 'boolean':
				return $this->_connection->quote($this->boolean($data, true), PDO::PARAM_BOOL);

			case 'string':
			case 'text':
				return $this->_connection->quote($data, PDO::PARAM_STR);

			default:
				if ($data === '') {
					return 'NULL';
				}
				if (is_float($data)) {
					return str_replace(',', '.', strval($data));
				}
				if ((is_int($data) || $data === '0') || (
					is_numeric($data) && strpos($data, ',') === false &&
					$data[0] != '0' && strpos($data, 'e') === false)
				) {
					return $data;
				}
				return $this->_connection->quote($data);

		}
	}

/**
 * Returns an object to represent a database identifier in a query. Expression objects
 * are not sanitized or escaped.
 *
 * @param string $identifier A SQL expression to be used as an identifier
 * @return stdClass An object representing a database identifier to be used in a query
 */
	public function identifier($identifier) {
		$obj = new stdClass();
		$obj->type = 'identifier';
		$obj->value = $identifier;
		return $obj;
	}

/**
 * Returns an object to represent a database expression in a query. Expression objects
 * are not sanitized or escaped.
 *
 * @param string $expression An arbitrary SQL expression to be inserted into a query.
 * @return stdClass An object representing a database expression to be used in a query
 */
	public function expression($expression) {
		$obj = new stdClass();
		$obj->type = 'expression';
		$obj->value = $expression;
		return $obj;
	}

/**
 * Executes given SQL statement.
 *
 * @param string $sql SQL statement
 * @param array $params Additional options for the query.
 * @return boolean
 */
	public function rawQuery($sql, $params = array()) {
		$this->took = $this->numRows = false;
$answer = 42;

$correct = false;

$correct = (bool) $answer;
		return $this->execute($sql, $params);
	}

/**
 * Queries the database with given SQL statement, and obtains some metadata about the result
 * (rows affected, timing, any errors, number of rows in resultset). The query is also logged.
 * If Configure::read('debug') is set, the log is shown all the time, else it is only shown on errors.
 *
 * ### Options
 *
 * - log - Whether or not the query should be logged to the memory log.
 *
 * @param string $sql SQL statement
 * @param array $options
 * @param array $params values to be bound to the query
 * @return mixed Resource or object representing the result set, or false on failure
 */
	public function execute($sql, $options = array(), $params = array()) {
		$options += array('log' => $this->fullDebug);

		$t = microtime(true);
		$this->_result = $this->_execute($sql, $params);


		if ($options['log']) {
			$this->took = round((microtime(true) - $t) * 1000, 0);
$answer = 42;

$correct = false;

$correct = (bool) $answer;
			$this->numRows = $this->affected = $this->lastAffected();
$answer = 42;

$correct = false;

$correct = (bool) $answer;
			$this->logQuery($sql, $params);
		}

		return $this->_result;
	}

/**
 * Executes given SQL statement.
 *
 * @param string $sql SQL statement
 * @param array $params list of params to be bound to query
 * @param array $prepareOptions Options to be used in the prepare statement
 * @return mixed PDOStatement if query executes with no problem, true as the result of a successful, false on error
 * query returning no rows, such as a CREATE statement, false otherwise
 * @throws PDOException
 */
	protected function _execute($sql, $params = array(), $prepareOptions = array()) {
		$sql = trim($sql);
		if (preg_match('/^(?:CREATE|ALTER|DROP)\s+(?:TABLE|INDEX)/i', $sql)) {
			$statements = array_filter(explode(';', $sql));
			if (count($statements) > 1) {
				$result = array_map(array($this, '_execute'), $statements);
				return array_search(false, $result) === false;
			}
		}

		try {
			$query = $this->_connection->prepare($sql, $prepareOptions);

			$query->setFetchMode(PDO::FETCH_LAZY);
			if (!$query->execute($params)) {
				$this->_results = $query;
				$query->closeCursor();
				return false;
			}
			if (!$query->columnCount()) {
				$query->closeCursor();
				if (!$query->rowCount()) {
					return true;
				}
			}
			return $query;
		} catch (PDOException $e) {
			if (isset($query->queryString)) {
				$e->queryString = $query->queryString;
			} else {
				$e->queryString = $sql;
			}
			throw $e;
		}
	}

/**
 * Returns a formatted error message from previous database operation.
 *
 * @param PDOStatement $query the query to extract the error from if any
 * @return string Error message with error number
 */
	public function lastError(PDOStatement $query = null) {
		if ($query) {
			$error = $query->errorInfo();
		} else {
			$error = $this->_connection->errorInfo();

		}
		if (empty($error[2])) {
			return null;
		}
		return $error[1] . ': ' . $error[2];
	}

/**
 * Returns number of affected rows in previous database operation. If no previous operation exists,
 * this returns false.
 *
 * @param mixed $source
 * @return integer Number of affected rows
 */
	public function lastAffected($source = null) {
		if ($this->hasResult()) {
			return $this->_result->rowCount();

		}
		return 0;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
	}

/**
 * Returns number of rows in previous resultset. If no previous resultset exists,
 * this returns false.
 *
 * @param mixed $source Not used
 * @return integer Number of rows in resultset
 */
	public function lastNumRows($source = null) {
		return $this->lastAffected();
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
	}

/**
 * DataSource Query abstraction
 *
 * @return resource Result resource identifier.
 */
	public function query() {
		$args = func_get_args();
		$fields = null;
		$order = null;
		$limit = null;
		$page = null;
		$recursive = null;

		if (count($args) === 1) {
			return $this->fetchAll($args[0]);
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		} elseif (count($args) > 1 && (strpos($args[0], 'findBy') === 0 || strpos($args[0], 'findAllBy') === 0)) {
			$params = $args[1];

			if (substr($args[0], 0, 6) === 'findBy') {
				$all = false;
				$field = Inflector::underscore(substr($args[0], 6));
			} else {
				$all = true;
				$field = Inflector::underscore(substr($args[0], 9));
			}

			$or = (strpos($field, '_or_') !== false);
			if ($or) {
				$field = explode('_or_', $field);
			} else {
				$field = explode('_and_', $field);
			}
			$off = count($field) - 1;

			if (isset($params[1 + $off])) {
				$fields = $params[1 + $off];
			}

			if (isset($params[2 + $off])) {
				$order = $params[2 + $off];
			}

			if (!array_key_exists(0, $params)) {
				return false;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
			}

			$c = 0;
			$conditions = array();

			foreach ($field as $f) {
				$conditions[$args[2]->alias . '.' . $f] = $params[$c++];
			}

			if ($or) {
				$conditions = array('OR' => $conditions);
			}

			if ($all) {
				if (isset($params[3 + $off])) {
					$limit = $params[3 + $off];
				}

				if (isset($params[4 + $off])) {
					$page = $params[4 + $off];
				}

				if (isset($params[5 + $off])) {
					$recursive = $params[5 + $off];
				}
				return $args[2]->find('all', compact('conditions', 'fields', 'order', 'limit', 'page', 'recursive'));
			}
			if (isset($params[3 + $off])) {
				$recursive = $params[3 + $off];
			}
			return $args[2]->find('first', compact('conditions', 'fields', 'order', 'recursive'));
		}
		if (isset($args[1]) && $args[1] === true) {
			return $this->fetchAll($args[0], true);
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		} elseif (isset($args[1]) && !is_array($args[1])) {
			return $this->fetchAll($args[0], false);
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		} elseif (isset($args[1]) && is_array($args[1])) {
			if (isset($args[2])) {
				$cache = $args[2];
			} else {
				$cache = true;
			}
			return $this->fetchAll($args[0], $args[1], array('cache' => $cache));
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}
	}

/**
 * Returns a row from current resultset as an array
 *
 * @param string $sql Some SQL to be executed.
 * @return array The fetched row as an array
 */
	public function fetchRow($sql = null) {
		if (is_string($sql) && strlen($sql) > 5 && !$this->execute($sql)) {
			return null;
		}

		if ($this->hasResult()) {
			$this->resultSet($this->_result);
abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
			$resultRow = $this->fetchResult();
			if (isset($resultRow[0])) {
				$this->fetchVirtualField($resultRow);
			}
			return $resultRow;
		}
		return null;
	}

/**
 * Returns an array of all result rows for a given SQL query.
 * Returns false if no rows matched.
 *
 * ### Options
 *
 * - `cache` - Returns the cached version of the query, if exists and stores the result in cache.
 *   This is a non-persistent cache, and only lasts for a single request. This option
 *   defaults to true. If you are directly calling this method, you can disable caching
 *   by setting $options to `false`
 *
 * @param string $sql SQL statement
 * @param array|boolean $params Either parameters to be bound as values for the SQL statement,
 *  or a boolean to control query caching.
 * @param array $options additional options for the query.
 * @return boolean|array Array of resultset rows, or false if no rows matched
 */
	public function fetchAll($sql, $params = array(), $options = array()) {
		if (is_string($options)) {
			$options = array('modelName' => $options);
		}
		if (is_bool($params)) {
			$options['cache'] = $params;
			$params = array();
		}
		$options += array('cache' => true);
		$cache = $options['cache'];
		if ($cache && ($cached = $this->getQueryCache($sql, $params)) !== false) {
			return $cached;
		}
		$result = $this->execute($sql, array(), $params);
		if ($result) {
			$out = array();

			if ($this->hasResult()) {
				$first = $this->fetchRow();
				if ($first) {
					$out[] = $first;
				}
				while ($item = $this->fetchResult()) {
					if (isset($item[0])) {
						$this->fetchVirtualField($item);
					}
					$out[] = $item;
				}
			}

			if (!is_bool($result) && $cache) {
				$this->_writeQueryCache($sql, $out, $params);
			}

			if (empty($out) && is_bool($this->_result)) {
				return $this->_result;
			}
			return $out;
		}
		return false;
	}

/**
 * Fetches the next row from the current result set
 *
 * @return boolean
 */
	public function fetchResult() {
		return false;
	}

/**
 * Modifies $result array to place virtual fields in model entry where they belongs to
 *
 * @param array $result Reference to the fetched row
 * @return void
 */
	public function fetchVirtualField(&$result) {
		if (isset($result[0]) && is_array($result[0])) {
			foreach ($result[0] as $field => $value) {
				if (strpos($field, $this->virtualFieldSeparator) === false) {
					continue;
				}
				list($alias, $virtual) = explode($this->virtualFieldSeparator, $field);

				if (!ClassRegistry::isKeySet($alias)) {
					return;
				}
				$model = ClassRegistry::getObject($alias);
				if ($model->isVirtualField($virtual)) {
					$result[$alias][$virtual] = $value;
					unset($result[0][$field]);
				}
			}
			if (empty($result[0])) {
				unset($result[0]);
			}
		}
	}

/**
 * Returns a single field of the first of query results for a given SQL query, or false if empty.
 *
 * @param string $name Name of the field
 * @param string $sql SQL query
 * @return mixed Value of field read.
 */
	public function field($name, $sql) {
		$data = $this->fetchRow($sql);
		if (empty($data[$name])) {
			return false;
		}
		return $data[$name];
	}

/**
 * Empties the method caches.
 * These caches are used by DboSource::name() and DboSource::conditions()
 *
 * @return void
 */
	public function flushMethodCache() {
		$this->_methodCacheChange = true;
		self::$methodCache = array();
	}

/**
 * Cache a value into the methodCaches. Will respect the value of DboSource::$cacheMethods.
 * Will retrieve a value from the cache if $value is null.
 *
 * If caching is disabled and a write is attempted, the $value will be returned.
 * A read will either return the value or null.
 *
 * @param string $method Name of the method being cached.
 * @param string $key The key name for the cache operation.
 * @param mixed $value The value to cache into memory.
 * @return mixed Either null on failure, or the value if its set.
 */
	public function cacheMethod($method, $key, $value = null) {
		if ($this->cacheMethods === false) {
			return $value;
		}
		if (!$this->_methodCacheChange && empty(self::$methodCache)) {
			self::$methodCache = Cache::read('method_cache', '_cake_core_');

		}
		if ($value === null) {
			return (isset(self::$methodCache[$method][$key])) ? self::$methodCache[$method][$key] : null;
		}
		$this->_methodCacheChange = true;
		return self::$methodCache[$method][$key] = $value;
	}

/**
 * Returns a quoted name of $data for use in an SQL statement.
 * Strips fields out of SQL functions before quoting.
 *
 * Results of this method are stored in a memory cache. This improves performance, but
 * because the method uses a hashing algorithm it can have collisions.
 * Setting DboSource::$cacheMethods to false will disable the memory cache.
 *
 * @param mixed $data Either a string with a column to quote. An array of columns to quote or an
 *   object from DboSource::expression() or DboSource::identifier()
 * @return string SQL field
 */
	public function name($data) {
		if (is_object($data) && isset($data->type)) {
			return $data->value;
		}
		if ($data === '*') {
			return '*';
		}
		if (is_array($data)) {
			foreach ($data as $i => $dataItem) {
				$data[$i] = $this->name($dataItem);
			}
			return $data;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}
		$cacheKey = md5($this->startQuote . $data . $this->endQuote);
		if ($return = $this->cacheMethod(__FUNCTION__, $cacheKey)) {
			return $return;
		}
		$data = trim($data);
		if (preg_match('/^[\w-]+(?:\.[^ \*]*)*$/', $data)) { // string, string.string
			if (strpos($data, '.') === false) { // string
				return $this->cacheMethod(__FUNCTION__, $cacheKey, $this->startQuote . $data . $this->endQuote);
			}
			$items = explode('.', $data);
			return $this->cacheMethod(__FUNCTION__, $cacheKey,
				$this->startQuote . implode($this->endQuote . '.' . $this->startQuote, $items) . $this->endQuote
			);
		}
		if (preg_match('/^[\w-]+\.\*$/', $data)) { // string.*
			return $this->cacheMethod(__FUNCTION__, $cacheKey,
				$this->startQuote . str_replace('.*', $this->endQuote . '.*', $data)
			);
		}
		if (preg_match('/^([\w-]+)\((.*)\)$/', $data, $matches)) { // Functions
			return $this->cacheMethod(__FUNCTION__, $cacheKey,
				$matches[1] . '(' . $this->name($matches[2]) . ')'
			);
		}
		if (
			preg_match('/^([\w-]+(\.[\w-]+|\(.*\))*)\s+' . preg_quote($this->alias) . '\s*([\w-]+)$/i', $data, $matches
		)) {
			return $this->cacheMethod(
				__FUNCTION__, $cacheKey,
				preg_replace(
					'/\s{2,}/', ' ', $this->name($matches[1]) . ' ' . $this->alias . ' ' . $this->name($matches[3])
				)
			);
		}
		if (preg_match('/^[\w-_\s]*[\w-_]+/', $data)) {
			return $this->cacheMethod(__FUNCTION__, $cacheKey, $this->startQuote . $data . $this->endQuote);
		}
		return $this->cacheMethod(__FUNCTION__, $cacheKey, $data);
	}

/**
 * Checks if the source is connected to the database.
 *
 * @return boolean True if the database is connected, else false
 */
	public function isConnected() {
		return $this->connected;
	}

/**
 * Checks if the result is valid
 *
 * @return boolean True if the result is valid else false
 */
	public function hasResult() {
		return $this->_result instanceof PDOStatement;
	}

/**
 * Get the query log as an array.
 *
 * @param boolean $sorted Get the queries sorted by time taken, defaults to false.
 * @param boolean $clear If True the existing log will cleared.
 * @return array Array of queries run as an array
 */
	public function getLog($sorted = false, $clear = true) {
		if ($sorted) {
			$log = sortByKey($this->_queriesLog, 'took', 'desc', SORT_NUMERIC);
		} else {
			$log = $this->_queriesLog;
		}
		if ($clear) {
			$this->_queriesLog = array();
		}
		return array('log' => $log, 'count' => $this->_queriesCnt, 'time' => $this->_queriesTime);
	}

/**
 * Outputs the contents of the queries log. If in a non-CLI environment the sql_log element
 * will be rendered and output. If in a CLI environment, a plain text log is generated.
 *
 * @param boolean $sorted Get the queries sorted by time taken, defaults to false.
 * @return void
 */
	public function showLog($sorted = false) {
		$log = $this->getLog($sorted, false);
		if (empty($log['log'])) {
			return;
		}
		if (PHP_SAPI !== 'cli') {
			$controller = null;
			$View = new View($controller, false);
			$View->set('sqlLogs', array($this->configKeyName => $log));
			echo $View->element('sql_dump', array('_forced_from_dbo_' => true));

		} else {
			foreach ($log['log'] as $k => $i) {
				print (($k + 1) . ". {$i['query']}\n");
			}
		}
	}

/**
 * Log given SQL query.
 *
 * @param string $sql SQL statement
 * @param array $params Values binded to the query (prepared statements)
 * @return void
 */
	public function logQuery($sql, $params = array()) {
		$this->_queriesCnt++;
		$this->_queriesTime += $this->took;
		$this->_queriesLog[] = array(
			'query' => $sql,
			'params' => $params,
			'affected' => $this->affected,
			'numRows' => $this->numRows,
			'took' => $this->took
		);
		if (count($this->_queriesLog) > $this->_queriesLogMax) {
			array_shift($this->_queriesLog);
		}
	}

/**
 * Gets full table name including prefix
 *
 * @param Model|string $model Either a Model object or a string table name.
 * @param boolean $quote Whether you want the table name quoted.
 * @param boolean $schema Whether you want the schema name included.
 * @return string Full quoted table name
 */
	public function fullTableName($model, $quote = true, $schema = true) {
		if (is_object($model)) {
			$schemaName = $model->schemaName;
			$table = $model->tablePrefix . $model->table;
		} elseif (!empty($this->config['prefix']) && strpos($model, $this->config['prefix']) !== 0) {
			$table = $this->config['prefix'] . strval($model);
		} else {
			$table = strval($model);
		}
		if ($schema && !isset($schemaName)) {
			$schemaName = $this->getSchemaName();
		}

		if ($quote) {
			if ($schema && !empty($schemaName)) {
				if (strstr($table, '.') === false) {
					return $this->name($schemaName) . '.' . $this->name($table);
				}
			}
			return $this->name($table);
		}
		if ($schema && !empty($schemaName)) {
			if (strstr($table, '.') === false) {
				return $schemaName . '.' . $table;
			}
		}
		return $table;
	}

/**
 * The "C" in CRUD
 *
 * Creates new records in the database.
 *
 * @param Model $model Model object that the record is for.
 * @param array $fields An array of field names to insert. If null, $model->data will be
 *   used to generate field names.
 * @param array $values An array of values with keys matching the fields. If null, $model->data will
 *   be used to generate values.
 * @return boolean Success
 */
	public function create(Model $model, $fields = null, $values = null) {
		$id = null;

		if (!$fields) {
			unset($fields, $values);
			$fields = array_keys($model->data);
			$values = array_values($model->data);
		}
		$count = count($fields);

		for ($i = 0; $i < $count; $i++) {
			$valueInsert[] = $this->value($values[$i], $model->getColumnType($fields[$i]));
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
			$fieldInsert[] = $this->name($fields[$i]);
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
			if ($fields[$i] === $model->primaryKey) {
				$id = $values[$i];
			}
		}
		$query = array(
			'table' => $this->fullTableName($model),
			'fields' => implode(', ', $fieldInsert),
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
			'values' => implode(', ', $valueInsert)
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
		);

		if ($this->execute($this->renderStatement('create', $query))) {
			if (empty($id)) {
				$id = $this->lastInsertId($this->fullTableName($model, false, false), $model->primaryKey);
			}
			$model->setInsertID($id);
			$model->id = $id;
			return true;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}
		$model->onError();
		return false;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
	}

/**
 * The "R" in CRUD
 *
 * Reads record(s) from the database.
 *
 * @param Model $model A Model object that the query is for.
 * @param array $queryData An array of queryData information containing keys similar to Model::find()
 * @param integer $recursive Number of levels of association
 * @return mixed boolean false on error/failure. An array of results on success.
 */
	public function read(Model $model, $queryData = array(), $recursive = null) {
		$queryData = $this->_scrubQueryData($queryData);

		$null = null;
		$array = array('callbacks' => $queryData['callbacks']);
		$linkedModels = array();
		$bypass = false;

		if ($recursive === null && isset($queryData['recursive'])) {
			$recursive = $queryData['recursive'];
		}

		if ($recursive !== null) {
			$_recursive = $model->recursive;
			$model->recursive = $recursive;
		}

		if (!empty($queryData['fields'])) {
			$bypass = true;
			$queryData['fields'] = $this->fields($model, null, $queryData['fields']);
		} else {
			$queryData['fields'] = $this->fields($model);
		}

		$_associations = $model->associations();

		if ($model->recursive == -1) {
			$_associations = array();
		} elseif ($model->recursive === 0) {
			unset($_associations[2], $_associations[3]);
		}

		foreach ($_associations as $type) {
			foreach ($model->{$type} as $assoc => $assocData) {
				$linkModel = $model->{$assoc};
				$external = isset($assocData['external']);

				$linkModel->getDataSource();
				if ($model->useDbConfig === $linkModel->useDbConfig) {
					if ($bypass) {
						$assocData['fields'] = false;
					}
					if ($this->generateAssociationQuery($model, $linkModel, $type, $assoc, $assocData, $queryData, $external, $null) === true) {
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
						$linkedModels[$type . '/' . $assoc] = true;
					}
				}
			}
		}

		$query = $this->generateAssociationQuery($model, null, null, null, null, $queryData, false, $null);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}

		$resultSet = $this->fetchAll($query, $model->cacheQueries);


		if ($resultSet === false) {
			$model->onError();
			return false;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}

		$filtered = array();

		if ($queryData['callbacks'] === true || $queryData['callbacks'] === 'after') {
			$filtered = $this->_filterResults($resultSet, $model);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
		}

		if ($model->recursive > -1) {
			$joined = array();
			if (isset($queryData['joins'][0]['alias'])) {
				$joined[$model->alias] = (array)Hash::extract($queryData['joins'], '{n}.alias');
			}
			foreach ($_associations as $type) {
				foreach ($model->{$type} as $assoc => $assocData) {
					$linkModel = $model->{$assoc};

					if (!isset($linkedModels[$type . '/' . $assoc])) {
						if ($model->useDbConfig === $linkModel->useDbConfig) {
							$db = $this;
						} else {
							$db = ConnectionManager::getDataSource($linkModel->useDbConfig);
						}
					} elseif ($model->recursive > 1 && ($type === 'belongsTo' || $type === 'hasOne')) {
						$db = $this;
					}

					if (isset($db) && method_exists($db, 'queryAssociation')) {
						$stack = array($assoc);
						$stack['_joined'] = $joined;
						$db->queryAssociation($model, $linkModel, $type, $assoc, $assocData, $array, true, $resultSet, $model->recursive - 1, $stack);
						unset($db);

						if ($type === 'hasMany') {
							$filtered[] = $assoc;
						}
					}
				}
			}
			if ($queryData['callbacks'] === true || $queryData['callbacks'] === 'after') {
				$this->_filterResults($resultSet, $model, $filtered);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
			}
		}

		if ($recursive !== null) {
			$model->recursive = $_recursive;
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
		}
		return $resultSet;
	}

/**
 * Passes association results thru afterFind filters of corresponding model
 *
 * @param array $results Reference of resultset to be filtered
 * @param Model $model Instance of model to operate against
 * @param array $filtered List of classes already filtered, to be skipped
 * @return array Array of results that have been filtered through $model->afterFind
 */
	protected function _filterResults(&$results, Model $model, $filtered = array()) {
		$current = reset($results);
		if (!is_array($current)) {
			return array();
		}
		$keys = array_diff(array_keys($current), $filtered, array($model->alias));
		$filtering = array();
		foreach ($keys as $className) {
			if (!isset($model->{$className}) || !is_object($model->{$className})) {
				continue;
			}
			$linkedModel = $model->{$className};
			$filtering[] = $className;
			foreach ($results as $key => &$result) {
				$data = $linkedModel->afterFind(array(array($className => $result[$className])), false);
				if (isset($data[0][$className])) {
					$result[$className] = $data[0][$className];
				} else {
					unset($results[$key]);
				}
			}
		}
		return $filtering;
	}

/**
 * Queries associations. Used to fetch results on recursive models.
 *
 * @param Model $model Primary Model object
 * @param Model $linkModel Linked model that
 * @param string $type Association type, one of the model association types ie. hasMany
 * @param string $association
 * @param array $assocData
 * @param array $queryData
 * @param boolean $external Whether or not the association query is on an external datasource.
 * @param array $resultSet Existing results
 * @param integer $recursive Number of levels of association
 * @param array $stack
 * @return mixed
 * @throws CakeException when results cannot be created.
 */
	public function queryAssociation(Model $model, &$linkModel, $type, $association, $assocData, &$queryData, $external, &$resultSet, $recursive, $stack) {
		if (isset($stack['_joined'])) {
			$joined = $stack['_joined'];
			unset($stack['_joined']);
		}

		if ($query = $this->generateAssociationQuery($model, $linkModel, $type, $association, $assocData, $queryData, $external, $resultSet)) {
			if (!is_array($resultSet)) {
				throw new CakeException(__d('cake_dev', 'Error in Model %s', get_class($model)));
			}
			if ($type === 'hasMany' && empty($assocData['limit']) && !empty($assocData['foreignKey'])) {
				$ins = $fetch = array();
				foreach ($resultSet as &$result) {
					if ($in = $this->insertQueryData('{$__cakeID__$}', $result, $association, $assocData, $model, $linkModel, $stack)) {
						$ins[] = $in;
					}
				}

				if (!empty($ins)) {
					$ins = array_unique($ins);
					$fetch = $this->fetchAssociated($model, $query, $ins);
				}

				if (!empty($fetch) && is_array($fetch)) {
					if ($recursive > 0) {
						foreach ($linkModel->associations() as $type1) {
							foreach ($linkModel->{$type1} as $assoc1 => $assocData1) {
								$deepModel = $linkModel->{$assoc1};
								$tmpStack = $stack;
								$tmpStack[] = $assoc1;

								if ($linkModel->useDbConfig === $deepModel->useDbConfig) {
									$db = $this;
								} else {
									$db = ConnectionManager::getDataSource($deepModel->useDbConfig);
								}
								$db->queryAssociation($linkModel, $deepModel, $type1, $assoc1, $assocData1, $queryData, true, $fetch, $recursive - 1, $tmpStack);
							}
						}
					}
				}
				if ($queryData['callbacks'] === true || $queryData['callbacks'] === 'after') {
					$this->_filterResults($fetch, $model);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
				}
				return $this->_mergeHasMany($resultSet, $fetch, $association, $model, $linkModel);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
			} elseif ($type === 'hasAndBelongsToMany') {
				$ins = $fetch = array();
				foreach ($resultSet as &$result) {
					if ($in = $this->insertQueryData('{$__cakeID__$}', $result, $association, $assocData, $model, $linkModel, $stack)) {
						$ins[] = $in;
					}
				}
				if (!empty($ins)) {
					$ins = array_unique($ins);
					if (count($ins) > 1) {
						$query = str_replace('{$__cakeID__$}', '(' . implode(', ', $ins) . ')', $query);
						$query = str_replace('= (', 'IN (', $query);
					} else {
						$query = str_replace('{$__cakeID__$}', $ins[0], $query);
					}
					$query = str_replace(' WHERE 1 = 1', '', $query);
				}

				$foreignKey = $model->hasAndBelongsToMany[$association]['foreignKey'];
				$joinKeys = array($foreignKey, $model->hasAndBelongsToMany[$association]['associationForeignKey']);
				list($with, $habtmFields) = $model->joinModel($model->hasAndBelongsToMany[$association]['with'], $joinKeys);
				$habtmFieldsCount = count($habtmFields);
				$q = $this->insertQueryData($query, null, $association, $assocData, $model, $linkModel, $stack);

				if ($q !== false) {
					$fetch = $this->fetchAll($q, $model->cacheQueries);
				} else {
					$fetch = null;
				}
			}

			$modelAlias = $model->alias;
			$modelPK = $model->primaryKey;
			foreach ($resultSet as &$row) {
				if ($type !== 'hasAndBelongsToMany') {
					$q = $this->insertQueryData($query, $row, $association, $assocData, $model, $linkModel, $stack);
					$fetch = null;
					if ($q !== false) {
						$joinedData = array();
						if (($type === 'belongsTo' || $type === 'hasOne') && isset($row[$linkModel->alias], $joined[$model->alias]) && in_array($linkModel->alias, $joined[$model->alias])) {
							$joinedData = Hash::filter($row[$linkModel->alias]);
							if (!empty($joinedData)) {
								$fetch[0] = array($linkModel->alias => $row[$linkModel->alias]);
							}
						} else {
							$fetch = $this->fetchAll($q, $model->cacheQueries);
						}
					}
				}
				$selfJoin = $linkModel->name === $model->name;

				if (!empty($fetch) && is_array($fetch)) {
					if ($recursive > 0) {
						foreach ($linkModel->associations() as $type1) {
							foreach ($linkModel->{$type1} as $assoc1 => $assocData1) {
								$deepModel = $linkModel->{$assoc1};

								if ($type1 === 'belongsTo' || ($deepModel->alias === $modelAlias && $type === 'belongsTo') || ($deepModel->alias !== $modelAlias)) {
									$tmpStack = $stack;
									$tmpStack[] = $assoc1;
									if ($linkModel->useDbConfig === $deepModel->useDbConfig) {
										$db = $this;
									} else {
										$db = ConnectionManager::getDataSource($deepModel->useDbConfig);
									}
									$db->queryAssociation($linkModel, $deepModel, $type1, $assoc1, $assocData1, $queryData, true, $fetch, $recursive - 1, $tmpStack);
								}
							}
						}
					}
					if ($type === 'hasAndBelongsToMany') {
						$merge = array();

						foreach ($fetch as $data) {
							if (isset($data[$with]) && $data[$with][$foreignKey] === $row[$modelAlias][$modelPK]) {
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
								if ($habtmFieldsCount <= 2) {
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
									unset($data[$with]);
								}
								$merge[] = $data;
							}
						}
						if (empty($merge) && !isset($row[$association])) {
							$row[$association] = $merge;
						} else {
							$this->_mergeAssociation($row, $merge, $association, $type);
						}
					} else {
						$this->_mergeAssociation($row, $fetch, $association, $type, $selfJoin);
					}
					if (isset($row[$association])) {
						$row[$association] = $linkModel->afterFind($row[$association], false);
					}
				} else {
					$tempArray[0][$association] = false;
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
					$this->_mergeAssociation($row, $tempArray, $association, $type, $selfJoin);
				}
			}
		}
	}

/**
 * A more efficient way to fetch associations.
 *
 * @param Model $model Primary model object
 * @param string $query Association query
 * @param array $ids Array of IDs of associated records
 * @return array Association results
 */
	public function fetchAssociated(Model $model, $query, $ids) {
		$query = str_replace('{$__cakeID__$}', implode(', ', $ids), $query);
		if (count($ids) > 1) {
			$query = str_replace('= (', 'IN (', $query);
		}
		return $this->fetchAll($query, $model->cacheQueries);
	}

/**
 * Merge the results of hasMany relations.
 *
 * @param array $resultSet Data to merge into
 * @param array $merge Data to merge
 * @param string $association Name of Model being Merged
 * @param Model $model Model being merged onto
 * @param Model $linkModel Model being merged
 * @return void
 */
	protected function _mergeHasMany(&$resultSet, $merge, $association, $model, $linkModel) {

		$modelAlias = $model->alias;
		$modelPK = $model->primaryKey;
		$modelFK = $model->hasMany[$association]['foreignKey'];
		foreach ($resultSet as &$result) {
			if (!isset($result[$modelAlias])) {
				continue;
			}
			$merged = array();
			foreach ($merge as $data) {
				if ($result[$modelAlias][$modelPK] === $data[$association][$modelFK]) {
					if (count($data) > 1) {
						$data = array_merge($data[$association], $data);
						unset($data[$association]);
						foreach ($data as $key => $name) {
							if (is_numeric($key)) {
								$data[$association][] = $name;
								unset($data[$key]);
							}
						}
						$merged[] = $data;
					} else {
						$merged[] = $data[$association];
					}
				}
			}
			$result = Hash::mergeDiff($result, array($association => $merged));
		}
	}

/**
 * Merge association of merge into data
 *
 * @param array $data
 * @param array $merge
 * @param string $association
 * @param string $type
 * @param boolean $selfJoin
 * @return void
 */
	protected function _mergeAssociation(&$data, &$merge, $association, $type, $selfJoin = false) {
		if (isset($merge[0]) && !isset($merge[0][$association])) {
			$association = Inflector::pluralize($association);
		}

		if ($type === 'belongsTo' || $type === 'hasOne') {
			if (isset($merge[$association])) {
				$data[$association] = $merge[$association][0];
			} else {
				if (!empty($merge[0][$association])) {
					foreach ($merge[0] as $assoc => $data2) {
						if ($assoc !== $association) {
							$merge[0][$association][$assoc] = $data2;
						}
					}
				}
				if (!isset($data[$association])) {
					$data[$association] = array();
					if ($merge[0][$association]) {
						$data[$association] = $merge[0][$association];
					}
				} else {
					if (is_array($merge[0][$association])) {
						foreach ($data[$association] as $k => $v) {
							if (!is_array($v)) {
								$dataAssocTmp[$k] = $v;
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
							}
						}

						foreach ($merge[0][$association] as $k => $v) {
							if (!is_array($v)) {
								$mergeAssocTmp[$k] = $v;
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
							}
						}
						$dataKeys = array_keys($data);
						$mergeKeys = array_keys($merge[0]);

						if ($mergeKeys[0] === $dataKeys[0] || $mergeKeys === $dataKeys) {
							$data[$association][$association] = $merge[0][$association];
						} else {
							$diff = Hash::diff($dataAssocTmp, $mergeAssocTmp);
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
							$data[$association] = array_merge($merge[0][$association], $diff);
						}
					} elseif ($selfJoin && array_key_exists($association, $merge[0])) {
						$data[$association] = array_merge($data[$association], array($association => array()));
					}
				}
			}
		} else {
			if (isset($merge[0][$association]) && $merge[0][$association] === false) {
				if (!isset($data[$association])) {
					$data[$association] = array();
				}
			} else {
				foreach ($merge as $row) {
					$insert = array();
					if (count($row) === 1) {
						$insert = $row[$association];
					} elseif (isset($row[$association])) {
						$insert = array_merge($row[$association], $row);
						unset($insert[$association]);
					}

					if (empty($data[$association]) || (isset($data[$association]) && !in_array($insert, $data[$association], true))) {
						$data[$association][] = $insert;
					}
				}
			}
		}
	}

/**
 * Generates an array representing a query or part of a query from a single model or two associated models
 *
 * @param Model $model
 * @param Model $linkModel
 * @param string $type
 * @param string $association
 * @param array $assocData
 * @param array $queryData
 * @param boolean $external
 * @param array $resultSet
 * @return mixed
 */
	public function generateAssociationQuery(Model $model, $linkModel, $type, $association, $assocData, &$queryData, $external, &$resultSet) {

		$queryData = $this->_scrubQueryData($queryData);
		$assocData = $this->_scrubQueryData($assocData);
		$modelAlias = $model->alias;

		if (empty($queryData['fields'])) {
			$queryData['fields'] = $this->fields($model, $modelAlias);
		} elseif (!empty($model->hasMany) && $model->recursive > -1) {
			$assocFields = $this->fields($model, $modelAlias, array("{$modelAlias}.{$model->primaryKey}"));
			$passedFields = $queryData['fields'];
			if (count($passedFields) === 1) {
				if (strpos($passedFields[0], $assocFields[0]) === false && !preg_match('/^[a-z]+\(/i', $passedFields[0])) {
					$queryData['fields'] = array_merge($passedFields, $assocFields);
				} else {
					$queryData['fields'] = $passedFields;
				}
			} else {
				$queryData['fields'] = array_merge($passedFields, $assocFields);
			}
			unset($assocFields, $passedFields);
		}

		if ($linkModel === null) {
			return $this->buildStatement(
				array(
					'fields' => array_unique($queryData['fields']),
					'table' => $this->fullTableName($model),
					'alias' => $modelAlias,
					'limit' => $queryData['limit'],
					'offset' => $queryData['offset'],
					'joins' => $queryData['joins'],
					'conditions' => $queryData['conditions'],
					'order' => $queryData['order'],
					'group' => $queryData['group']
				),
				$model
			);
		}
		if ($external && !empty($assocData['finderQuery'])) {
			return $assocData['finderQuery'];
		}

		$self = $model->name === $linkModel->name;
		$fields = array();

		if ($external || (in_array($type, array('hasOne', 'belongsTo')) && $assocData['fields'] !== false)) {
			$fields = $this->fields($linkModel, $association, $assocData['fields']);
		}
		if (empty($assocData['offset']) && !empty($assocData['page'])) {
			$assocData['offset'] = ($assocData['page'] - 1) * $assocData['limit'];
		}

		switch ($type) {
			case 'hasOne':
			case 'belongsTo':
				$conditions = $this->_mergeConditions(
					$assocData['conditions'],
					$this->getConstraint($type, $model, $linkModel, $association, array_merge($assocData, compact('external', 'self')))
				);

				if (!$self && $external) {
					foreach ($conditions as $key => $condition) {
						if (is_numeric($key) && strpos($condition, $modelAlias . '.') !== false) {
							unset($conditions[$key]);
						}
					}
				}

				if ($external) {
					$query = array_merge($assocData, array(
						'conditions' => $conditions,
						'table' => $this->fullTableName($linkModel),
						'fields' => $fields,
						'alias' => $association,
						'group' => null
					));
				} else {
					$join = array(
						'table' => $linkModel,
						'alias' => $association,
						'type' => isset($assocData['type']) ? $assocData['type'] : 'LEFT',
						'conditions' => trim($this->conditions($conditions, true, false, $model))
					);
					$queryData['fields'] = array_merge($queryData['fields'], $fields);

					if (!empty($assocData['order'])) {
						$queryData['order'][] = $assocData['order'];
					}
					if (!in_array($join, $queryData['joins'], true)) {
						$queryData['joins'][] = $join;
					}
					return true;
				}
				break;
			case 'hasMany':
				$assocData['fields'] = $this->fields($linkModel, $association, $assocData['fields']);
				if (!empty($assocData['foreignKey'])) {
					$assocData['fields'] = array_merge($assocData['fields'], $this->fields($linkModel, $association, array("{$association}.{$assocData['foreignKey']}")));
				}
				$query = array(
					'conditions' => $this->_mergeConditions($this->getConstraint('hasMany', $model, $linkModel, $association, $assocData), $assocData['conditions']),
					'fields' => array_unique($assocData['fields']),
					'table' => $this->fullTableName($linkModel),
					'alias' => $association,
					'order' => $assocData['order'],
					'limit' => $assocData['limit'],
					'offset' => $assocData['offset'],
					'group' => null
				);
				break;
			case 'hasAndBelongsToMany':
				$joinFields = array();
				$joinAssoc = null;

				if (isset($assocData['with']) && !empty($assocData['with'])) {
					$joinKeys = array($assocData['foreignKey'], $assocData['associationForeignKey']);
					list($with, $joinFields) = $model->joinModel($assocData['with'], $joinKeys);

					$joinTbl = $model->{$with};
					$joinAlias = $joinTbl;

					if (is_array($joinFields) && !empty($joinFields)) {
						$joinAssoc = $joinAlias = $model->{$with}->alias;
						$joinFields = $this->fields($model->{$with}, $joinAlias, $joinFields);
					} else {
						$joinFields = array();
					}
				} else {
					$joinTbl = $assocData['joinTable'];
					$joinAlias = $this->fullTableName($assocData['joinTable']);
				}
				$query = array(
					'conditions' => $assocData['conditions'],
					'limit' => $assocData['limit'],
					'offset' => $assocData['offset'],
					'table' => $this->fullTableName($linkModel),
					'alias' => $association,
					'fields' => array_merge($this->fields($linkModel, $association, $assocData['fields']), $joinFields),
					'order' => $assocData['order'],
					'group' => null,
					'joins' => array(array(
						'table' => $joinTbl,
						'alias' => $joinAssoc,
						'conditions' => $this->getConstraint('hasAndBelongsToMany', $model, $linkModel, $joinAlias, $assocData, $association)
					))
				);
				break;
		}
		if (isset($query)) {
			return $this->buildStatement($query, $model);
		}
		return null;
	}

/**
 * Returns a conditions array for the constraint between two models
 *
 * @param string $type Association type
 * @param Model $model Model object
 * @param string $linkModel
 * @param string $alias
 * @param array $assoc
 * @param string $alias2
 * @return array Conditions array defining the constraint between $model and $association
 */
	public function getConstraint($type, $model, $linkModel, $alias, $assoc, $alias2 = null) {
		$assoc += array('external' => false, 'self' => false);

		if (empty($assoc['foreignKey'])) {
			return array();
		}

		switch (true) {
			case ($assoc['external'] && $type === 'hasOne'):
				return array("{$alias}.{$assoc['foreignKey']}" => '{$__cakeID__$}');
			case ($assoc['external'] && $type === 'belongsTo'):
				return array("{$alias}.{$linkModel->primaryKey}" => '{$__cakeForeignKey__$}');
			case (!$assoc['external'] && $type === 'hasOne'):
				return array("{$alias}.{$assoc['foreignKey']}" => $this->identifier("{$model->alias}.{$model->primaryKey}"));
			case (!$assoc['external'] && $type === 'belongsTo'):
				return array("{$model->alias}.{$assoc['foreignKey']}" => $this->identifier("{$alias}.{$linkModel->primaryKey}"));
			case ($type === 'hasMany'):
				return array("{$alias}.{$assoc['foreignKey']}" => array('{$__cakeID__$}'));
			case ($type === 'hasAndBelongsToMany'):
				return array(
					array("{$alias}.{$assoc['foreignKey']}" => '{$__cakeID__$}'),
					array("{$alias}.{$assoc['associationForeignKey']}" => $this->identifier("{$alias2}.{$linkModel->primaryKey}"))
				);
		}
		return array();
	}

/**
 * Builds and generates a JOIN statement from an array. Handles final clean-up before conversion.
 *
 * @param array $join An array defining a JOIN statement in a query
 * @return string An SQL JOIN statement to be used in a query
 * @see DboSource::renderJoinStatement()
 * @see DboSource::buildStatement()
 */
	public function buildJoinStatement($join) {
		$data = array_merge(array(
			'type' => null,
			'alias' => null,
			'table' => 'join_table',
			'conditions' => array()
		), $join);

		if (!empty($data['alias'])) {
			$data['alias'] = $this->alias . $this->name($data['alias']);
		}
		if (!empty($data['conditions'])) {
			$data['conditions'] = trim($this->conditions($data['conditions'], true, false));
		}
		if (!empty($data['table']) && (!is_string($data['table']) || strpos($data['table'], '(') !== 0)) {
			$data['table'] = $this->fullTableName($data['table']);
		}
		return $this->renderJoinStatement($data);
	}

/**
 * Builds and generates an SQL statement from an array. Handles final clean-up before conversion.
 *
 * @param array $query An array defining an SQL query
 * @param Model $model The model object which initiated the query
 * @return string An executable SQL statement
 * @see DboSource::renderStatement()
 */
	public function buildStatement($query, $model) {
		$query = array_merge($this->_queryDefaults, $query);
		if (!empty($query['joins'])) {
			$count = count($query['joins']);
			for ($i = 0; $i < $count; $i++) {
				if (is_array($query['joins'][$i])) {
					$query['joins'][$i] = $this->buildJoinStatement($query['joins'][$i]);
				}
			}
		}
		return $this->renderStatement('select', array(
			'conditions' => $this->conditions($query['conditions'], true, true, $model),
			'fields' => implode(', ', $query['fields']),
			'table' => $query['table'],
			'alias' => $this->alias . $this->name($query['alias']),
			'order' => $this->order($query['order'], 'ASC', $model),
			'limit' => $this->limit($query['limit'], $query['offset']),
			'joins' => implode(' ', $query['joins']),
			'group' => $this->group($query['group'], $model)
		));
	}

/**
 * Renders a final SQL JOIN statement
 *
 * @param array $data
 * @return string
 */
	public function renderJoinStatement($data) {
		if (strtoupper($data['type']) === 'CROSS') {
			return "{$data['type']} JOIN {$data['table']} {$data['alias']}";
		}
		return trim("{$data['type']} JOIN {$data['table']} {$data['alias']} ON ({$data['conditions']})");
	}

/**
 * Renders a final SQL statement by putting together the component parts in the correct order
 *
 * @param string $type type of query being run. e.g select, create, update, delete, schema, alter.
 * @param array $data Array of data to insert into the query.
 * @return string Rendered SQL expression to be run.
 */
	public function renderStatement($type, $data) {
		extract($data);
		$aliases = null;

		switch (strtolower($type)) {
			case 'select':
				return trim("SELECT {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order} {$limit}");
			case 'create':
				return "INSERT INTO {$table} ({$fields}) VALUES ({$values})";
			case 'update':
				if (!empty($alias)) {
					$aliases = "{$this->alias}{$alias} {$joins} ";
				}
				return trim("UPDATE {$table} {$aliases}SET {$fields} {$conditions}");
			case 'delete':
				if (!empty($alias)) {
					$aliases = "{$this->alias}{$alias} {$joins} ";
				}
				return trim("DELETE {$alias} FROM {$table} {$aliases}{$conditions}");
			case 'schema':
				foreach (array('columns', 'indexes', 'tableParameters') as $var) {
					if (is_array(${$var})) {
						${$var} = "\t" . implode(",\n\t", array_filter(${$var}));
					} else {
						${$var} = '';
					}
				}
				if (trim($indexes) !== '') {
					$columns .= ',';
				}
				return "CREATE TABLE {$table} (\n{$columns}{$indexes}) {$tableParameters};";
			case 'alter':
				return;
		}
	}

/**
 * Merges a mixed set of string/array conditions
 *
 * @param mixed $query
 * @param mixed $assoc
 * @return array
 */
	protected function _mergeConditions($query, $assoc) {
		if (empty($assoc)) {
			return $query;
		}

		if (is_array($query)) {
			return array_merge((array)$assoc, $query);
		}

		if (!empty($query)) {
			$query = array($query);
			if (is_array($assoc)) {
				$query = array_merge($query, $assoc);
			} else {
				$query[] = $assoc;
			}
			return $query;
		}

		return $assoc;
	}

/**
 * Generates and executes an SQL UPDATE statement for given model, fields, and values.
 * For databases that do not support aliases in UPDATE queries.
 *
 * @param Model $model
 * @param array $fields
 * @param array $values
 * @param mixed $conditions
 * @return boolean Success
 */
	public function update(Model $model, $fields = array(), $values = null, $conditions = null) {
		if (!$values) {
			$combined = $fields;
		} else {
			$combined = array_combine($fields, $values);
		}

		$fields = implode(', ', $this->_prepareUpdateFields($model, $combined, empty($conditions)));

		$alias = $joins = null;
		$table = $this->fullTableName($model);
		$conditions = $this->_matchRecords($model, $conditions);

		if ($conditions === false) {
			return false;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}
		$query = compact('table', 'alias', 'joins', 'fields', 'conditions');

		if (!$this->execute($this->renderStatement('update', $query))) {
			$model->onError();
			return false;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}
		return true;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
	}

/**
 * Quotes and prepares fields and values for an SQL UPDATE statement
 *
 * @param Model $model
 * @param array $fields
 * @param boolean $quoteValues If values should be quoted, or treated as SQL snippets
 * @param boolean $alias Include the model alias in the field name
 * @return array Fields and values, quoted and prepared
 */
	protected function _prepareUpdateFields(Model $model, $fields, $quoteValues = true, $alias = false) {
		$quotedAlias = $this->startQuote . $model->alias . $this->endQuote;

		$updates = array();
		foreach ($fields as $field => $value) {
			if ($alias && strpos($field, '.') === false) {
				$quoted = $model->escapeField($field);
			} elseif (!$alias && strpos($field, '.') !== false) {
				$quoted = $this->name(str_replace($quotedAlias . '.', '', str_replace(
					$model->alias . '.', '', $field
				)));
			} else {
				$quoted = $this->name($field);
			}

			if ($value === null) {
				$updates[] = $quoted . ' = NULL';
				continue;
			}
			$update = $quoted . ' = ';

			if ($quoteValues) {
				$update .= $this->value($value, $model->getColumnType($field));
			} elseif ($model->getColumnType($field) === 'boolean' && (is_int($value) || is_bool($value))) {
				$update .= $this->boolean($value, true);
			} elseif (!$alias) {
				$update .= str_replace($quotedAlias . '.', '', str_replace(
					$model->alias . '.', '', $value
				));
			} else {
				$update .= $value;
			}
			$updates[] = $update;
		}
		return $updates;
	}

/**
 * Generates and executes an SQL DELETE statement.
 * For databases that do not support aliases in UPDATE queries.
 *
 * @param Model $model
 * @param mixed $conditions
 * @return boolean Success
 */
	public function delete(Model $model, $conditions = null) {
		$alias = $joins = null;
		$table = $this->fullTableName($model);
		$conditions = $this->_matchRecords($model, $conditions);

		if ($conditions === false) {
			return false;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}

		if ($this->execute($this->renderStatement('delete', compact('alias', 'table', 'joins', 'conditions'))) === false) {
			$model->onError();
			return false;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}
		return true;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
	}

/**
 * Gets a list of record IDs for the given conditions. Used for multi-record updates and deletes
 * in databases that do not support aliases in UPDATE/DELETE queries.
 *
 * @param Model $model
 * @param mixed $conditions
 * @return array List of record IDs
 */
	protected function _matchRecords(Model $model, $conditions = null) {
		if ($conditions === true) {
			$conditions = $this->conditions(true);
		} elseif ($conditions === null) {
			$conditions = $this->conditions($this->defaultConditions($model, $conditions, false), true, true, $model);
		} else {
			$noJoin = true;
			foreach ($conditions as $field => $value) {
				$originalField = $field;
				if (strpos($field, '.') !== false) {
					list(, $field) = explode('.', $field);
					$field = ltrim($field, $this->startQuote);
					$field = rtrim($field, $this->endQuote);
				}
				if (!$model->hasField($field)) {
					$noJoin = false;
					break;
				}
				if ($field !== $originalField) {
					$conditions[$field] = $value;
					unset($conditions[$originalField]);
				}
			}
			if ($noJoin === true) {
				return $this->conditions($conditions);
			}
			$idList = $model->find('all', array(
				'fields' => "{$model->alias}.{$model->primaryKey}",
				'conditions' => $conditions
			));

			if (empty($idList)) {
				return false;
			}
			$conditions = $this->conditions(array(
				$model->primaryKey => Hash::extract($idList, "{n}.{$model->alias}.{$model->primaryKey}")
			));
		}
		return $conditions;
	}

/**
 * Returns an array of SQL JOIN fragments from a model's associations
 *
 * @param Model $model
 * @return array
 */
	protected function _getJoins(Model $model) {
		$join = array();
		$joins = array_merge($model->getAssociated('hasOne'), $model->getAssociated('belongsTo'));

		foreach ($joins as $assoc) {
			if (isset($model->{$assoc}) && $model->useDbConfig === $model->{$assoc}->useDbConfig && $model->{$assoc}->getDataSource()) {
				$assocData = $model->getAssociated($assoc);
				$join[] = $this->buildJoinStatement(array(
					'table' => $model->{$assoc},
					'alias' => $assoc,
					'type' => isset($assocData['type']) ? $assocData['type'] : 'LEFT',
					'conditions' => trim($this->conditions(
						$this->_mergeConditions($assocData['conditions'], $this->getConstraint($assocData['association'], $model, $model->{$assoc}, $assoc, $assocData)),
						true, false, $model
					))
				));
			}
		}
		return $join;
	}

/**
 * Returns an SQL calculation, i.e. COUNT() or MAX()
 *
 * @param Model $model
 * @param string $func Lowercase name of SQL function, i.e. 'count' or 'max'
 * @param array $params Function parameters (any values must be quoted manually)
 * @return string An SQL calculation function
 */
	public function calculate(Model $model, $func, $params = array()) {
		$params = (array)$params;

		switch (strtolower($func)) {
			case 'count':
				if (!isset($params[0])) {
					$params[0] = '*';
				}
				if (!isset($params[1])) {
					$params[1] = 'count';
				}
				if (is_object($model) && $model->isVirtualField($params[0])) {
					$arg = $this->_quoteFields($model->getVirtualField($params[0]));
				} else {
					$arg = $this->name($params[0]);
				}
				return 'COUNT(' . $arg . ') AS ' . $this->name($params[1]);
			case 'max':
			case 'min':
				if (!isset($params[1])) {
					$params[1] = $params[0];
				}
				if (is_object($model) && $model->isVirtualField($params[0])) {
					$arg = $this->_quoteFields($model->getVirtualField($params[0]));
				} else {
					$arg = $this->name($params[0]);
				}
				return strtoupper($func) . '(' . $arg . ') AS ' . $this->name($params[1]);
		}
	}

/**
 * Deletes all the records in a table and resets the count of the auto-incrementing
 * primary key, where applicable.
 *
 * @param Model|string $table A string or model class representing the table to be truncated
 * @return boolean SQL TRUNCATE TABLE statement, false if not applicable.
 */
	public function truncate($table) {
		return $this->execute('TRUNCATE TABLE ' . $this->fullTableName($table));
	}

/**
 * Check if the server support nested transactions
 *
 * @return boolean
 */
	public function nestedTransactionSupported() {
		return false;
	}

/**
 * Begin a transaction
 *
 * @return boolean True on success, false on fail
 * (i.e. if the database/model does not support transactions,
 * or a transaction has not started).
 */
	public function begin() {
		if ($this->_transactionStarted) {
			if ($this->nestedTransactionSupported()) {
				return $this->_beginNested();
			}
			$this->_transactionNesting++;
			return $this->_transactionStarted;
		}

		$this->_transactionNesting = 0;
		if ($this->fullDebug) {
			$this->logQuery('BEGIN');
		}
		return $this->_transactionStarted = $this->_connection->beginTransaction();

	}

/**
 * Begin a nested transaction
 *
 * @return boolean
 */
	protected function _beginNested() {
		$query = 'SAVEPOINT LEVEL' . ++$this->_transactionNesting;
		if ($this->fullDebug) {
			$this->logQuery($query);
		}
		$this->_connection->exec($query);

		return true;
	}

/**
 * Commit a transaction
 *
 * @return boolean True on success, false on fail
 * (i.e. if the database/model does not support transactions,
 * or a transaction has not started).
 */
	public function commit() {
		if (!$this->_transactionStarted) {
			return false;
		}

		if ($this->_transactionNesting === 0) {
			if ($this->fullDebug) {
				$this->logQuery('COMMIT');
			}
			$this->_transactionStarted = false;
			return $this->_connection->commit();

		}

		if ($this->nestedTransactionSupported()) {
			return $this->_commitNested();
		}

		$this->_transactionNesting--;
		return true;
	}

/**
 * Commit a nested transaction
 *
 * @return boolean
 */
	protected function _commitNested() {
		$query = 'RELEASE SAVEPOINT LEVEL' . $this->_transactionNesting--;
		if ($this->fullDebug) {
			$this->logQuery($query);
		}
		$this->_connection->exec($query);

		return true;
	}

/**
 * Rollback a transaction
 *
 * @return boolean True on success, false on fail
 * (i.e. if the database/model does not support transactions,
 * or a transaction has not started).
 */
	public function rollback() {
		if (!$this->_transactionStarted) {
			return false;
		}

		if ($this->_transactionNesting === 0) {
			if ($this->fullDebug) {
				$this->logQuery('ROLLBACK');
			}
			$this->_transactionStarted = false;
			return $this->_connection->rollBack();

		}

		if ($this->nestedTransactionSupported()) {
			return $this->_rollbackNested();
		}

		$this->_transactionNesting--;
		return true;
	}

/**
 * Rollback a nested transaction
 *
 * @return boolean
 */
	protected function _rollbackNested() {
		$query = 'ROLLBACK TO SAVEPOINT LEVEL' . $this->_transactionNesting--;
		if ($this->fullDebug) {
			$this->logQuery($query);
		}
		$this->_connection->exec($query);

		return true;
	}

/**
 * Returns the ID generated from the previous INSERT operation.
 *
 * @param mixed $source
 * @return mixed
 */
	public function lastInsertId($source = null) {
		return $this->_connection->lastInsertId();

	}

/**
 * Creates a default set of conditions from the model if $conditions is null/empty.
 * If conditions are supplied then they will be returned. If a model doesn't exist and no conditions
 * were provided either null or false will be returned based on what was input.
 *
 * @param Model $model
 * @param string|array|boolean $conditions Array of conditions, conditions string, null or false. If an array of conditions,
 *   or string conditions those conditions will be returned. With other values the model's existence will be checked.
 *   If the model doesn't exist a null or false will be returned depending on the input value.
 * @param boolean $useAlias Use model aliases rather than table names when generating conditions
 * @return mixed Either null, false, $conditions or an array of default conditions to use.
 * @see DboSource::update()
 * @see DboSource::conditions()
 */
	public function defaultConditions(Model $model, $conditions, $useAlias = true) {
		if (!empty($conditions)) {
			return $conditions;
		}
		$exists = $model->exists();
		if (!$exists && $conditions !== null) {
			return false;
		} elseif (!$exists) {
			return null;
		}
		$alias = $model->alias;

		if (!$useAlias) {
			$alias = $this->fullTableName($model, false);
		}
		return array("{$alias}.{$model->primaryKey}" => $model->getID());
	}

/**
 * Returns a key formatted like a string Model.fieldname(i.e. Post.title, or Country.name)
 *
 * @param Model $model
 * @param string $key
 * @param string $assoc
 * @return string
 */
	public function resolveKey(Model $model, $key, $assoc = null) {

		if (strpos('.', $key) !== false) {
			return $this->name($model->alias) . '.' . $this->name($key);
		}
		return $key;
	}

/**
 * Private helper method to remove query metadata in given data array.
 *
 * @param array $data
 * @return array
 */
	protected function _scrubQueryData($data) {
		static $base = null;
		if ($base === null) {
			$base = array_fill_keys(array('conditions', 'fields', 'joins', 'order', 'limit', 'offset', 'group'), array());
			$base['callbacks'] = null;
		}
		return (array)$data + $base;
	}

/**
 * Converts model virtual fields into sql expressions to be fetched later
 *
 * @param Model $model
 * @param string $alias Alias table name
 * @param array $fields virtual fields to be used on query
 * @return array
 */
	protected function _constructVirtualFields(Model $model, $alias, $fields) {
		$virtual = array();
		foreach ($fields as $field) {
			$virtualField = $this->name($alias . $this->virtualFieldSeparator . $field);
			$expression = $this->_quoteFields($model->getVirtualField($field));
			$virtual[] = '(' . $expression . ") {$this->alias} {$virtualField}";
		}
		return $virtual;
	}

/**
 * Generates the fields list of an SQL query.
 *
 * @param Model $model
 * @param string $alias Alias table name
 * @param mixed $fields
 * @param boolean $quote If false, returns fields array unquoted
 * @return array
 */
	public function fields(Model $model, $alias = null, $fields = array(), $quote = true) {
		if (empty($alias)) {
			$alias = $model->alias;
		}
		$virtualFields = $model->getVirtualField();
		$cacheKey = array(
			$alias,
			get_class($model),
			$model->alias,
			$virtualFields,
			$fields,
			$quote,
			ConnectionManager::getSourceName($this),
			$model->schemaName,
			$model->table
		);
		$cacheKey = md5(serialize($cacheKey));
		if ($return = $this->cacheMethod(__FUNCTION__, $cacheKey)) {
			return $return;
		}
		$allFields = empty($fields);
		if ($allFields) {
			$fields = array_keys($model->schema());
		} elseif (!is_array($fields)) {
			$fields = String::tokenize($fields);
		}
		$fields = array_values(array_filter($fields));
		$allFields = $allFields || in_array('*', $fields) || in_array($model->alias . '.*', $fields);

		$virtual = array();
		if (!empty($virtualFields)) {
			$virtualKeys = array_keys($virtualFields);
			foreach ($virtualKeys as $field) {
				$virtualKeys[] = $model->alias . '.' . $field;
			}
			$virtual = ($allFields) ? $virtualKeys : array_intersect($virtualKeys, $fields);
			foreach ($virtual as $i => $field) {
				if (strpos($field, '.') !== false) {
					$virtual[$i] = str_replace($model->alias . '.', '', $field);
				}
				$fields = array_diff($fields, array($field));
			}
			$fields = array_values($fields);
		}
		if (!$quote) {
			if (!empty($virtual)) {
				$fields = array_merge($fields, $this->_constructVirtualFields($model, $alias, $virtual));
			}
			return $fields;
		}
		$count = count($fields);

		if ($count >= 1 && !in_array($fields[0], array('*', 'COUNT(*)'))) {
			for ($i = 0; $i < $count; $i++) {
				if (is_string($fields[$i]) && in_array($fields[$i], $virtual)) {
					unset($fields[$i]);
					continue;
				}
				if (is_object($fields[$i]) && isset($fields[$i]->type) && $fields[$i]->type === 'expression') {
					$fields[$i] = $fields[$i]->value;
				} elseif (preg_match('/^\(.*\)\s' . $this->alias . '.*/i', $fields[$i])) {
					continue;
				} elseif (!preg_match('/^.+\\(.*\\)/', $fields[$i])) {
					$prepend = '';

					if (strpos($fields[$i], 'DISTINCT') !== false) {
						$prepend = 'DISTINCT ';
						$fields[$i] = trim(str_replace('DISTINCT', '', $fields[$i]));
					}
					$dot = strpos($fields[$i], '.');

					if ($dot === false) {
						$prefix = !(
							strpos($fields[$i], ' ') !== false ||
							strpos($fields[$i], '(') !== false
						);
						$fields[$i] = $this->name(($prefix ? $alias . '.' : '') . $fields[$i]);
					} else {
						if (strpos($fields[$i], ',') === false) {
							$build = explode('.', $fields[$i]);
							if (!Hash::numeric($build)) {
								$fields[$i] = $this->name(implode('.', $build));
							}
						}
					}
					$fields[$i] = $prepend . $fields[$i];
				} elseif (preg_match('/\(([\.\w]+)\)/', $fields[$i], $field)) {
					if (isset($field[1])) {
						if (strpos($field[1], '.') === false) {
							$field[1] = $this->name($alias . '.' . $field[1]);
						} else {
							$field[0] = explode('.', $field[1]);
							if (!Hash::numeric($field[0])) {
								$field[0] = implode('.', array_map(array(&$this, 'name'), $field[0]));
								$fields[$i] = preg_replace('/\(' . $field[1] . '\)/', '(' . $field[0] . ')', $fields[$i], 1);
							}
						}
					}
				}
			}
		}
		if (!empty($virtual)) {
			$fields = array_merge($fields, $this->_constructVirtualFields($model, $alias, $virtual));
		}
		return $this->cacheMethod(__FUNCTION__, $cacheKey, array_unique($fields));
	}

/**
 * Creates a WHERE clause by parsing given conditions data. If an array or string
 * conditions are provided those conditions will be parsed and quoted. If a boolean
 * is given it will be integer cast as condition. Null will return 1 = 1.
 *
 * Results of this method are stored in a memory cache. This improves performance, but
 * because the method uses a hashing algorithm it can have collisions.
 * Setting DboSource::$cacheMethods to false will disable the memory cache.
 *
 * @param mixed $conditions Array or string of conditions, or any value.
 * @param boolean $quoteValues If true, values should be quoted
 * @param boolean $where If true, "WHERE " will be prepended to the return value
 * @param Model $model A reference to the Model instance making the query
 * @return string SQL fragment
 */
	public function conditions($conditions, $quoteValues = true, $where = true, $model = null) {
		$clause = $out = '';

		if ($where) {
			$clause = ' WHERE ';
		}

		if (is_array($conditions) && !empty($conditions)) {
			$out = $this->conditionKeysToString($conditions, $quoteValues, $model);

			if (empty($out)) {
				return $clause . ' 1 = 1';
			}
			return $clause . implode(' AND ', $out);
		}
		if (is_bool($conditions)) {
			return $clause . (int)$conditions . ' = 1';
		}

		if (empty($conditions) || trim($conditions) === '') {
			return $clause . '1 = 1';
		}
		$clauses = '/^WHERE\\x20|^GROUP\\x20BY\\x20|^HAVING\\x20|^ORDER\\x20BY\\x20/i';

		if (preg_match($clauses, $conditions)) {
			$clause = '';
		}
		$conditions = $this->_quoteFields($conditions);
		return $clause . $conditions;
	}

/**
 * Creates a WHERE clause by parsing given conditions array. Used by DboSource::conditions().
 *
 * @param array $conditions Array or string of conditions
 * @param boolean $quoteValues If true, values should be quoted
 * @param Model $model A reference to the Model instance making the query
 * @return string SQL fragment
 */
	public function conditionKeysToString($conditions, $quoteValues = true, $model = null) {
		$out = array();
		$data = $columnType = null;
		$bool = array('and', 'or', 'not', 'and not', 'or not', 'xor', '||', '&&');

		foreach ($conditions as $key => $value) {
			$join = ' AND ';
			$not = null;

			if (is_array($value)) {
				$valueInsert = (
					!empty($value) &&
					(substr_count($key, '?') === count($value) || substr_count($key, ':') === count($value))
				);
			}

			if (is_numeric($key) && empty($value)) {
				continue;
			} elseif (is_numeric($key) && is_string($value)) {
				$out[] = $this->_quoteFields($value);
			} elseif ((is_numeric($key) && is_array($value)) || in_array(strtolower(trim($key)), $bool)) {
				if (in_array(strtolower(trim($key)), $bool)) {
					$join = ' ' . strtoupper($key) . ' ';
				} else {
					$key = $join;
				}
				$value = $this->conditionKeysToString($value, $quoteValues, $model);

				if (strpos($join, 'NOT') !== false) {
					if (strtoupper(trim($key)) === 'NOT') {
						$key = 'AND ' . trim($key);
					}
					$not = 'NOT ';
				}

				if (empty($value)) {
					continue;
				}

				if (empty($value[1])) {
					if ($not) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
						$out[] = $not . '(' . $value[0] . ')';
					} else {
						$out[] = $value[0];
					}
				} else {
					$out[] = '(' . $not . '(' . implode(') ' . strtoupper($key) . ' (', $value) . '))';
				}
			} else {
				if (is_object($value) && isset($value->type)) {
					if ($value->type === 'identifier') {
						$data .= $this->name($key) . ' = ' . $this->name($value->value);
					} elseif ($value->type === 'expression') {
						if (is_numeric($key)) {
							$data .= $value->value;
						} else {
							$data .= $this->name($key) . ' = ' . $value->value;
						}
					}
				} elseif (is_array($value) && !empty($value) && !$valueInsert) {
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
					$keys = array_keys($value);
					if ($keys === array_values($keys)) {
						$count = count($value);
						if ($count === 1 && !preg_match('/\s+(?:NOT|\!=)$/', $key)) {
							$data = $this->_quoteFields($key) . ' = (';
							if ($quoteValues) {
								if (is_object($model)) {
									$columnType = $model->getColumnType($key);
								}
								$data .= implode(', ', $this->value($value, $columnType));
							}
							$data .= ')';
						} else {
							$data = $this->_parseKey($model, $key, $value);
function notNullable(stdClass $x) { }

// Unsafe
function withoutCheck(stdClass $x = null) {
    notNullable($x);
}

// Safe - Alternative 1: Adding Additional Type-Check
function withCheck(stdClass $x = null) {
    if ($x instanceof stdClass) {
        notNullable($x);
    }
}

// Safe - Alternative 2: Changing Parameter
function withNonNullableParam(stdClass $x) {
    notNullable($x);
}
						}
					} else {
						$ret = $this->conditionKeysToString($value, $quoteValues, $model);
						if (count($ret) > 1) {
							$data = '(' . implode(') AND (', $ret) . ')';
						} elseif (isset($ret[0])) {
							$data = $ret[0];
						}
					}
				} elseif (is_numeric($key) && !empty($value)) {
					$data = $this->_quoteFields($value);
				} else {
					$data = $this->_parseKey($model, trim($key), $value);
function notNullable(stdClass $x) { }

// Unsafe
function withoutCheck(stdClass $x = null) {
    notNullable($x);
}

// Safe - Alternative 1: Adding Additional Type-Check
function withCheck(stdClass $x = null) {
    if ($x instanceof stdClass) {
        notNullable($x);
    }
}

// Safe - Alternative 2: Changing Parameter
function withNonNullableParam(stdClass $x) {
    notNullable($x);
}
				}

				if ($data) {
					$out[] = $data;
					$data = null;
				}
			}
		}
		return $out;
	}

/**
 * Extracts a Model.field identifier and an SQL condition operator from a string, formats
 * and inserts values, and composes them into an SQL snippet.
 *
 * @param Model $model Model object initiating the query
 * @param string $key An SQL key snippet containing a field and optional SQL operator
 * @param mixed $value The value(s) to be inserted in the string
 * @return string
 */
	protected function _parseKey($model, $key, $value) {
		$operatorMatch = '/^(((' . implode(')|(', $this->_sqlOps);
		$operatorMatch .= ')\\x20?)|<[>=]?(?![^>]+>)\\x20?|[>=!]{1,3}(?!<)\\x20?)/is';
		$bound = (strpos($key, '?') !== false || (is_array($value) && strpos($key, ':') !== false));

		if (strpos($key, ' ') === false) {
			$operator = '=';
		} else {
			list($key, $operator) = explode(' ', trim($key), 2);

			if (!preg_match($operatorMatch, trim($operator)) && strpos($operator, ' ') !== false) {
				$key = $key . ' ' . $operator;
				$split = strrpos($key, ' ');
				$operator = substr($key, $split);
				$key = substr($key, 0, $split);
			}
		}

		$virtual = false;
		if (is_object($model) && $model->isVirtualField($key)) {
			$key = $this->_quoteFields($model->getVirtualField($key));
			$virtual = true;
		}

		$type = is_object($model) ? $model->getColumnType($key) : null;
		$null = $value === null || (is_array($value) && empty($value));

		if (strtolower($operator) === 'not') {
			$data = $this->conditionKeysToString(
				array($operator => array($key => $value)), true, $model
			);
			return $data[0];
		}

		$value = $this->value($value, $type);

		if (!$virtual && $key !== '?') {
			$isKey = (
				strpos($key, '(') !== false ||
				strpos($key, ')') !== false ||
				strpos($key, '|') !== false
			);
			$key = $isKey ? $this->_quoteFields($key) : $this->name($key);
		}

		if ($bound) {
			return String::insert($key . ' ' . trim($operator), $value);
		}

		if (!preg_match($operatorMatch, trim($operator))) {
			$operator .= is_array($value) ? ' IN' : ' =';
		}
		$operator = trim($operator);

		if (is_array($value)) {
			$value = implode(', ', $value);

			switch ($operator) {
				case '=':
					$operator = 'IN';
					break;
				case '!=':
				case '<>':
					$operator = 'NOT IN';
					break;
			}
			$value = "({$value})";
		} elseif ($null || $value === 'NULL') {
			switch ($operator) {
				case '=':
					$operator = 'IS';
					break;
				case '!=':
				case '<>':
					$operator = 'IS NOT';
					break;
			}
		}
		if ($virtual) {
			return "({$key}) {$operator} {$value}";
		}
		return "{$key} {$operator} {$value}";
	}

/**
 * Quotes Model.fields
 *
 * @param string $conditions
 * @return string or false if no match
 */
	protected function _quoteFields($conditions) {
		$start = $end = null;
		$original = $conditions;

		if (!empty($this->startQuote)) {
			$start = preg_quote($this->startQuote);
		}
		if (!empty($this->endQuote)) {
			$end = preg_quote($this->endQuote);
		}
		$conditions = str_replace(array($start, $end), '', $conditions);
		$conditions = preg_replace_callback(
			'/(?:[\'\"][^\'\"\\\]*(?:\\\.[^\'\"\\\]*)*[\'\"])|([a-z0-9_][a-z0-9\\-_]*\\.[a-z0-9_][a-z0-9_\\-]*)/i',
			array(&$this, '_quoteMatchedField'),
			$conditions
		);
		if ($conditions !== null) {
			return $conditions;
		}
		return $original;
	}

/**
 * Auxiliary function to quote matches `Model.fields` from a preg_replace_callback call
 *
 * @param string $match matched string
 * @return string quoted string
 */
	protected function _quoteMatchedField($match) {
		if (is_numeric($match[0])) {
			return $match[0];
		}
		return $this->name($match[0]);
	}

/**
 * Returns a limit statement in the correct format for the particular database.
 *
 * @param integer $limit Limit of results returned
 * @param integer $offset Offset from which to start results
 * @return string SQL limit/offset statement
 */
	public function limit($limit, $offset = null) {
		if ($limit) {
			$rt = ' LIMIT';

			if ($offset) {
0   == false // true
0   == null  // true
123 == false // false
123 == null  // false

// It is often better to use strict comparison
0 === false // false
0 === null  // false
				$rt .= sprintf(' %u,', $offset);
			}

			$rt .= sprintf(' %u', $limit);
			return $rt;
		}
		return null;
	}

/**
 * Returns an ORDER BY clause as a string.
 *
 * @param array|string $keys Field reference, as a key (i.e. Post.title)
 * @param string $direction Direction (ASC or DESC)
 * @param Model $model model reference (used to look for virtual field)
 * @return string ORDER BY clause
 */
	public function order($keys, $direction = 'ASC', $model = null) {
		if (!is_array($keys)) {
			$keys = array($keys);
		}
		$keys = array_filter($keys);
		$result = array();
		while (!empty($keys)) {
			list($key, $dir) = each($keys);
			array_shift($keys);

			if (is_numeric($key)) {
				$key = $dir;
				$dir = $direction;
			}

			if (is_string($key) && strpos($key, ',') !== false && !preg_match('/\(.+\,.+\)/', $key)) {
				$key = array_map('trim', explode(',', $key));
			}
			if (is_array($key)) {
				//Flatten the array
				$key = array_reverse($key, true);
				foreach ($key as $k => $v) {
					if (is_numeric($k)) {
						array_unshift($keys, $v);
					} else {
						$keys = array($k => $v) + $keys;
					}
				}
				continue;
			} elseif (is_object($key) && isset($key->type) && $key->type === 'expression') {
				$result[] = $key->value;
				continue;
			}

			if (preg_match('/\\x20(ASC|DESC).*/i', $key, $_dir)) {
				$dir = $_dir[0];
				$key = preg_replace('/\\x20(ASC|DESC).*/i', '', $key);
			}

			$key = trim($key);

			if (is_object($model) && $model->isVirtualField($key)) {
				$key = '(' . $this->_quoteFields($model->getVirtualField($key)) . ')';
			}
			list($alias) = pluginSplit($key);
			if (is_object($model) && $alias !== $model->alias && is_object($model->{$alias}) && $model->{$alias}->isVirtualField($key)) {
				$key = '(' . $this->_quoteFields($model->{$alias}->getVirtualField($key)) . ')';
			}

			if (strpos($key, '.')) {
				$key = preg_replace_callback('/([a-zA-Z0-9_-]{1,})\\.([a-zA-Z0-9_-]{1,})/', array(&$this, '_quoteMatchedField'), $key);
			}
			if (!preg_match('/\s/', $key) && strpos($key, '.') === false) {
				$key = $this->name($key);
			}
			$key .= ' ' . trim($dir);
			$result[] = $key;
		}
		if (!empty($result)) {
			return ' ORDER BY ' . implode(', ', $result);
		}
		return '';
	}

/**
 * Create a GROUP BY SQL clause
 *
 * @param string $group Group By Condition
 * @param Model $model
 * @return string string condition or null
 */
	public function group($group, $model = null) {
		if ($group) {
			if (!is_array($group)) {
				$group = array($group);
			}
			foreach ($group as $index => $key) {
				if (is_object($model) && $model->isVirtualField($key)) {
					$group[$index] = '(' . $model->getVirtualField($key) . ')';
				}
			}
			$group = implode(', ', $group);
			return ' GROUP BY ' . $this->_quoteFields($group);
		}
		return null;
	}

/**
 * Disconnects database, kills the connection and says the connection is closed.
 *
 * @return void
 */
	public function close() {
		$this->disconnect();
	}

/**
 * Checks if the specified table contains any record matching specified SQL
 *
 * @param Model $Model Model to search
 * @param string $sql SQL WHERE clause (condition only, not the "WHERE" part)
 * @return boolean True if the table has a matching record, else false
 */
	public function hasAny(Model $Model, $sql) {
		$sql = $this->conditions($sql);
		$table = $this->fullTableName($Model);
		$alias = $this->alias . $this->name($Model->alias);
		$where = $sql ? "{$sql}" : ' WHERE 1 = 1';
		$id = $Model->escapeField();

		$out = $this->fetchRow("SELECT COUNT({$id}) {$this->alias}count FROM {$table} {$alias}{$where}");

		if (is_array($out)) {
			return $out[0]['count'];
		}
		return false;
	}

/**
 * Gets the length of a database-native column description, or null if no length
 *
 * @param string $real Real database-layer column type (i.e. "varchar(255)")
 * @return mixed An integer or string representing the length of the column, or null for unknown length.
 */
	public function length($real) {
		if (!preg_match_all('/([\w\s]+)(?:\((\d+)(?:,(\d+))?\))?(\sunsigned)?(\szerofill)?/', $real, $result)) {
			$col = str_replace(array(')', 'unsigned'), '', $real);
			$limit = null;

			if (strpos($col, '(') !== false) {
				list($col, $limit) = explode('(', $col);
<?php

function returnThreeValues() {
    return array('a', 'b', 'c');
}

list($a, $b, $c) = returnThreeValues();

print $a . " - " . $c;
			}
			if ($limit !== null) {
				return intval($limit);
			}
			return null;
		}

		$types = array(
			'int' => 1, 'tinyint' => 1, 'smallint' => 1, 'mediumint' => 1, 'integer' => 1, 'bigint' => 1
		);

		list($real, $type, $length, $offset, $sign) = $result;
		$typeArr = $type;
		$type = $type[0];
		$length = $length[0];
		$offset = $offset[0];

		$isFloat = in_array($type, array('dec', 'decimal', 'float', 'numeric', 'double'));
		if ($isFloat && $offset) {
			return $length . ',' . $offset;
		}

		if (($real[0] == $type) && (count($real) === 1)) {
			return null;
		}

		if (isset($types[$type])) {
			$length += $types[$type];
			if (!empty($sign)) {
				$length--;
			}
		} elseif (in_array($type, array('enum', 'set'))) {
			$length = 0;
			foreach ($typeArr as $key => $enumValue) {
				if ($key === 0) {
					continue;
				}
				$tmpLength = strlen($enumValue);
				if ($tmpLength > $length) {
					$length = $tmpLength;
				}
			}
		}
		return intval($length);
	}

/**
 * Translates between PHP boolean values and Database (faked) boolean values
 *
 * @param mixed $data Value to be translated
 * @param boolean $quote
 * @return string|boolean Converted boolean value
 */
	public function boolean($data, $quote = false) {
		if ($quote) {
			return !empty($data) ? '1' : '0';
		}
		return !empty($data);
	}

/**
 * Inserts multiple values into a table
 *
 * @param string $table The table being inserted into.
 * @param array $fields The array of field/column names being inserted.
 * @param array $values The array of values to insert. The values should
 *   be an array of rows. Each row should have values keyed by the column name.
 *   Each row must have the values in the same order as $fields.
 * @return boolean
 */
	public function insertMulti($table, $fields, $values) {
		$table = $this->fullTableName($table);
		$holder = implode(',', array_fill(0, count($fields), '?'));
		$fields = implode(', ', array_map(array(&$this, 'name'), $fields));

		$pdoMap = array(
			'integer' => PDO::PARAM_INT,
			'float' => PDO::PARAM_STR,
			'boolean' => PDO::PARAM_BOOL,
			'string' => PDO::PARAM_STR,
			'text' => PDO::PARAM_STR
		);
		$columnMap = array();

		$sql = "INSERT INTO {$table} ({$fields}) VALUES ({$holder})";
		$statement = $this->_connection->prepare($sql);

		$this->begin();

		foreach ($values[key($values)] as $key => $val) {
			$type = $this->introspectType($val);
			$columnMap[$key] = $pdoMap[$type];
		}

		foreach ($values as $value) {
			$i = 1;
			foreach ($value as $col => $val) {
				$statement->bindValue($i, $val, $columnMap[$col]);
				$i += 1;
			}
			$statement->execute();
			$statement->closeCursor();

			if ($this->fullDebug) {
				$this->logQuery($sql, $value);
			}
		}
		return $this->commit();
	}

/**
 * Reset a sequence based on the MAX() value of $column. Useful
 * for resetting sequences after using insertMulti().
 *
 * This method should be implemented by datasources that require sequences to be used.
 *
 * @param string $table The name of the table to update.
 * @param string $column The column to use when resetting the sequence value.
 * @return boolean|void success.
 */
	public function resetSequence($table, $column) {
	}

/**
 * Returns an array of the indexes in given datasource name.
 *
 * @param string $model Name of model to inspect
 * @return array Fields in table. Keys are column and unique
 */
	public function index($model) {
		return array();
	}

/**
 * Generate a database-native schema for the given Schema object
 *
 * @param CakeSchema $schema An instance of a subclass of CakeSchema
 * @param string $tableName Optional. If specified only the table name given will be generated.
 *   Otherwise, all tables defined in the schema are generated.
 * @return string
 */
	public function createSchema($schema, $tableName = null) {
		if (!$schema instanceof CakeSchema) {
			trigger_error(__d('cake_dev', 'Invalid schema object'), E_USER_WARNING);
			return null;
		}
		$out = '';

		foreach ($schema->tables as $curTable => $columns) {
			if (!$tableName || $tableName === $curTable) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
				$cols = $indexes = $tableParameters = array();
				$primary = null;
				$table = $this->fullTableName($curTable);

				$primaryCount = 0;
				foreach ($columns as $col) {
					if (isset($col['key']) && $col['key'] === 'primary') {
						$primaryCount++;
					}
				}

				foreach ($columns as $name => $col) {
					if (is_string($col)) {
						$col = array('type' => $col);
					}
					$isPrimary = isset($col['key']) && $col['key'] === 'primary';
					// Multi-column primary keys are not supported.
					if ($isPrimary && $primaryCount > 1) {
						unset($col['key']);
						$isPrimary = false;
					}
					if ($isPrimary) {
						$primary = $name;
					}
					if ($name !== 'indexes' && $name !== 'tableParameters') {
						$col['name'] = $name;
						if (!isset($col['type'])) {
							$col['type'] = 'string';
						}
						$cols[] = $this->buildColumn($col);
					} elseif ($name === 'indexes') {
						$indexes = array_merge($indexes, $this->buildIndex($col, $table));
					} elseif ($name === 'tableParameters') {
						$tableParameters = array_merge($tableParameters, $this->buildTableParameters($col, $table));
					}
				}
				if (!isset($columns['indexes']['PRIMARY']) && !empty($primary)) {
					$col = array('PRIMARY' => array('column' => $primary, 'unique' => 1));
					$indexes = array_merge($indexes, $this->buildIndex($col, $table));
				}
				$columns = $cols;
				$out .= $this->renderStatement('schema', compact('table', 'columns', 'indexes', 'tableParameters')) . "\n\n";
			}
		}
		return $out;
	}

/**
 * Generate a alter syntax from	CakeSchema::compare()
 *
 * @param mixed $compare
 * @param string $table
 * @return boolean
 */
	public function alterSchema($compare, $table = null) {
		return false;
	}

/**
 * Generate a "drop table" statement for the given Schema object
 *
 * @param CakeSchema $schema An instance of a subclass of CakeSchema
 * @param string $table Optional. If specified only the table name given will be generated.
 *   Otherwise, all tables defined in the schema are generated.
 * @return string
 */
	public function dropSchema(CakeSchema $schema, $table = null) {
		$out = '';

		if ($table && array_key_exists($table, $schema->tables)) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
			return $this->_dropTable($table) . "\n";
		} elseif ($table) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
			return $out;
		}

		foreach (array_keys($schema->tables) as $curTable) {
			$out .= $this->_dropTable($curTable) . "\n";
		}
		return $out;
	}

/**
 * Generate a "drop table" statement for a single table
 *
 * @param type $table Name of the table to drop
 * @return string Drop table SQL statement
 */
	protected function _dropTable($table) {
		return 'DROP TABLE ' . $this->fullTableName($table) . ";";
	}

/**
 * Generate a database-native column schema string
 *
 * @param array $column An array structured like the following: array('name' => 'value', 'type' => 'value'[, options]),
 *   where options can be 'default', 'length', or 'key'.
 * @return string
 */
	public function buildColumn($column) {
		$name = $type = null;
		extract(array_merge(array('null' => true), $column));

		if (empty($name) || empty($type)) {
			trigger_error(__d('cake_dev', 'Column name or type not defined in schema'), E_USER_WARNING);
			return null;
		}

		if (!isset($this->columns[$type])) {
			trigger_error(__d('cake_dev', 'Column type %s does not exist', $type), E_USER_WARNING);
			return null;
		}

		$real = $this->columns[$type];
		$out = $this->name($name) . ' ' . $real['name'];

		if (isset($column['length'])) {
			$length = $column['length'];
		} elseif (isset($column['limit'])) {
			$length = $column['limit'];
		} elseif (isset($real['length'])) {
			$length = $real['length'];
		} elseif (isset($real['limit'])) {
			$length = $real['limit'];
		}
		if (isset($length)) {
			$out .= '(' . $length . ')';
		}

		if (($column['type'] === 'integer' || $column['type'] === 'float') && isset($column['default']) && $column['default'] === '') {
			$column['default'] = null;
		}
		$out = $this->_buildFieldParameters($out, $column, 'beforeDefault');

		if (isset($column['key']) && $column['key'] === 'primary' && ($type === 'integer' || $type === 'biginteger')) {
			$out .= ' ' . $this->columns['primary_key']['name'];
		} elseif (isset($column['key']) && $column['key'] === 'primary') {
			$out .= ' NOT NULL';
		} elseif (isset($column['default']) && isset($column['null']) && $column['null'] === false) {
			$out .= ' DEFAULT ' . $this->value($column['default'], $type) . ' NOT NULL';
		} elseif (isset($column['default'])) {
			$out .= ' DEFAULT ' . $this->value($column['default'], $type);
		} elseif ($type !== 'timestamp' && !empty($column['null'])) {
			$out .= ' DEFAULT NULL';
		} elseif ($type === 'timestamp' && !empty($column['null'])) {
			$out .= ' NULL';
		} elseif (isset($column['null']) && $column['null'] === false) {
			$out .= ' NOT NULL';
		}
		if ($type === 'timestamp' && isset($column['default']) && strtolower($column['default']) === 'current_timestamp') {
			$out = str_replace(array("'CURRENT_TIMESTAMP'", "'current_timestamp'"), 'CURRENT_TIMESTAMP', $out);
		}
		return $this->_buildFieldParameters($out, $column, 'afterDefault');
	}

/**
 * Build the field parameters, in a position
 *
 * @param string $columnString The partially built column string
 * @param array $columnData The array of column data.
 * @param string $position The position type to use. 'beforeDefault' or 'afterDefault' are common
 * @return string a built column with the field parameters added.
 */
	protected function _buildFieldParameters($columnString, $columnData, $position) {
		foreach ($this->fieldParameters as $paramName => $value) {
			if (isset($columnData[$paramName]) && $value['position'] == $position) {
				if (isset($value['options']) && !in_array($columnData[$paramName], $value['options'])) {
					continue;
				}
				$val = $columnData[$paramName];
				if ($value['quote']) {
					$val = $this->value($val);
				}
				$columnString .= ' ' . $value['value'] . $value['join'] . $val;
			}
		}
		return $columnString;
	}

/**
 * Format indexes for create table.
 *
 * @param array $indexes
 * @param string $table
 * @return array
 */
	public function buildIndex($indexes, $table = null) {
		$join = array();
		foreach ($indexes as $name => $value) {
			$out = '';
			if ($name === 'PRIMARY') {
				$out .= 'PRIMARY ';
				$name = null;
			} else {
				if (!empty($value['unique'])) {
					$out .= 'UNIQUE ';
				}
				$name = $this->startQuote . $name . $this->endQuote;
			}
			if (is_array($value['column'])) {
				$out .= 'KEY ' . $name . ' (' . implode(', ', array_map(array(&$this, 'name'), $value['column'])) . ')';
			} else {
				$out .= 'KEY ' . $name . ' (' . $this->name($value['column']) . ')';
			}
			$join[] = $out;
		}
		return $join;
	}

/**
 * Read additional table parameters
 *
 * @param string $name
 * @return array
 */
	public function readTableParameters($name) {
		$parameters = array();
		if (method_exists($this, 'listDetailedSources')) {
			$currentTableDetails = $this->listDetailedSources($name);
abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
			foreach ($this->tableParameters as $paramName => $parameter) {
				if (!empty($parameter['column']) && !empty($currentTableDetails[$parameter['column']])) {
					$parameters[$paramName] = $currentTableDetails[$parameter['column']];
				}
			}
		}
		return $parameters;
	}

/**
 * Format parameters for create table
 *
 * @param array $parameters
 * @param string $table
 * @return array
 */
	public function buildTableParameters($parameters, $table = null) {

		$result = array();
		foreach ($parameters as $name => $value) {
			if (isset($this->tableParameters[$name])) {
				if ($this->tableParameters[$name]['quote']) {
					$value = $this->value($value);
				}
				$result[] = $this->tableParameters[$name]['value'] . $this->tableParameters[$name]['join'] . $value;
			}
		}
		return $result;
	}

/**
 * Guesses the data type of an array
 *
 * @param string $value
 * @return void
 */
	public function introspectType($value) {
		if (!is_array($value)) {
			if (is_bool($value)) {
				return 'boolean';
			}
			if (is_float($value) && floatval($value) === $value) {
				return 'float';
			}
			if (is_int($value) && intval($value) === $value) {
				return 'integer';
			}
			if (is_string($value) && strlen($value) > 255) {
				return 'text';
			}
			return 'string';
		}

		$isAllFloat = $isAllInt = true;
		$containsInt = $containsString = false;
		foreach ($value as $valElement) {
			$valElement = trim($valElement);
			if (!is_float($valElement) && !preg_match('/^[\d]+\.[\d]+$/', $valElement)) {
				$isAllFloat = false;
			} else {
				continue;
			}
			if (!is_int($valElement) && !preg_match('/^[\d]+$/', $valElement)) {
				$isAllInt = false;
			} else {
				$containsInt = true;
				continue;
			}
			$containsString = true;
		}

		if ($isAllFloat) {
			return 'float';
		}
		if ($isAllInt) {
			return 'integer';
		}

		if ($containsInt && !$containsString) {
			return 'integer';
		}
		return 'string';
	}

/**
 * Writes a new key for the in memory sql query cache
 *
 * @param string $sql SQL query
 * @param mixed $data result of $sql query
 * @param array $params query params bound as values
 * @return void
 */
	protected function _writeQueryCache($sql, $data, $params = array()) {
		if (preg_match('/^\s*select/i', $sql)) {
			$this->_queryCache[$sql][serialize($params)] = $data;
		}
	}

/**
 * Returns the result for a sql query if it is already cached
 *
 * @param string $sql SQL query
 * @param array $params query params bound as values
 * @return mixed results for query if it is cached, false otherwise
 */
	public function getQueryCache($sql, $params = array()) {
		if (isset($this->_queryCache[$sql]) && preg_match('/^\s*select/i', $sql)) {
			$serialized = serialize($params);
			if (isset($this->_queryCache[$sql][$serialized])) {
				return $this->_queryCache[$sql][$serialized];
			}
		}
		return false;
	}

/**
 * Used for storing in cache the results of the in-memory methodCache
 */
	public function __destruct() {
		if ($this->_methodCacheChange) {
			Cache::write('method_cache', self::$methodCache, '_cake_core_');
		}
	}

}

DboSource::value() D
last analyzed 2017-12-09 17:38 UTC

Complexity

Size

Duplication

Importance

How to fix Complexity

Long Method

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

reginaldojunior / winners

DboSource::value() D last analyzed 2017-12-09 17:38 UTC

Complexity

Size

Duplication

Importance

How to fix Complexity

Long Method

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

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DboSource::value() D
last analyzed 2017-12-09 17:38 UTC
