eventespresso / event-espresso-core

core/services/loaders/ObjectIdentifier.php

Indentation +98 added lines, -98 removed lines

@@ -16,113 +16,113 @@
 class ObjectIdentifier
 {
 
-    /**
-     * used to separate the FQCN from the class's arguments identifier
-     */
-    const DELIMITER = '____';
+	/**
+	 * used to separate the FQCN from the class's arguments identifier
+	 */
+	const DELIMITER = '____';
 
-    /**
-     * @var ClassInterfaceCache $class_cache
-     */
-    private $class_cache;
+	/**
+	 * @var ClassInterfaceCache $class_cache
+	 */
+	private $class_cache;
 
 
-    /**
-     * ObjectIdentifier constructor.
-     *
-     * @param ClassInterfaceCache $class_cache
-     */
-    public function __construct(ClassInterfaceCache $class_cache)
-    {
-        $this->class_cache = $class_cache;
-    }
+	/**
+	 * ObjectIdentifier constructor.
+	 *
+	 * @param ClassInterfaceCache $class_cache
+	 */
+	public function __construct(ClassInterfaceCache $class_cache)
+	{
+		$this->class_cache = $class_cache;
+	}
 
 
-    /**
-     * Returns true if the supplied $object_identifier contains
-     * the delimiter used to separate an fqcn from the arguments hash
-     *
-     * @param string $object_identifier
-     * @return bool
-     */
-    public function hasArguments($object_identifier)
-    {
-        // type casting to bool instead of using strpos() !== false
-        // because an object identifier should never begin with the delimiter
-        // therefore the delimiter should NOT be found at position 0
-        return (bool) strpos($object_identifier, ObjectIdentifier::DELIMITER);
-    }
+	/**
+	 * Returns true if the supplied $object_identifier contains
+	 * the delimiter used to separate an fqcn from the arguments hash
+	 *
+	 * @param string $object_identifier
+	 * @return bool
+	 */
+	public function hasArguments($object_identifier)
+	{
+		// type casting to bool instead of using strpos() !== false
+		// because an object identifier should never begin with the delimiter
+		// therefore the delimiter should NOT be found at position 0
+		return (bool) strpos($object_identifier, ObjectIdentifier::DELIMITER);
+	}
 
 
-    /**
-     * Returns true if the supplied FQCN equals the supplied $object_identifier
-     * OR the supplied FQCN matches the FQCN portion of the supplied $object_identifier
-     * AND that $object_identifier is for an object with arguments.
-     * This allows a request for an object using a FQCN to match
-     * a previously instantiated object with arguments
-     * without having to know those arguments.
-     *
-     * @param string $fqcn
-     * @param string $object_identifier
-     * @return bool
-     */
-    public function fqcnMatchesObjectIdentifier($fqcn, $object_identifier)
-    {
-        return $fqcn === $object_identifier
-               || strpos($object_identifier, $fqcn . ObjectIdentifier::DELIMITER) === 0;
-    }
+	/**
+	 * Returns true if the supplied FQCN equals the supplied $object_identifier
+	 * OR the supplied FQCN matches the FQCN portion of the supplied $object_identifier
+	 * AND that $object_identifier is for an object with arguments.
+	 * This allows a request for an object using a FQCN to match
+	 * a previously instantiated object with arguments
+	 * without having to know those arguments.
+	 *
+	 * @param string $fqcn
+	 * @param string $object_identifier
+	 * @return bool
+	 */
+	public function fqcnMatchesObjectIdentifier($fqcn, $object_identifier)
+	{
+		return $fqcn === $object_identifier
+			   || strpos($object_identifier, $fqcn . ObjectIdentifier::DELIMITER) === 0;
+	}
 
 
-    /**
-     * build a string representation of an object's FQCN and arguments
-     *
-     * @param string $fqcn
-     * @param array  $arguments
-     * @return string
-     */
-    public function getIdentifier($fqcn, array $arguments = array())
-    {
-        // only build identifier from arguments if class is not ReservedInstanceInterface
-        $identifier = ! $this->class_cache->hasInterface(
-            $fqcn,
-            'EventEspresso\core\interfaces\ReservedInstanceInterface'
-        )
-            ? $this->getIdentifierForArguments($arguments)
-            : '';
-        if (! empty($identifier)) {
-            $fqcn .= ObjectIdentifier::DELIMITER . md5($identifier);
-        }
-        return $fqcn;
-    }
+	/**
+	 * build a string representation of an object's FQCN and arguments
+	 *
+	 * @param string $fqcn
+	 * @param array  $arguments
+	 * @return string
+	 */
+	public function getIdentifier($fqcn, array $arguments = array())
+	{
+		// only build identifier from arguments if class is not ReservedInstanceInterface
+		$identifier = ! $this->class_cache->hasInterface(
+			$fqcn,
+			'EventEspresso\core\interfaces\ReservedInstanceInterface'
+		)
+			? $this->getIdentifierForArguments($arguments)
+			: '';
+		if (! empty($identifier)) {
+			$fqcn .= ObjectIdentifier::DELIMITER . md5($identifier);
+		}
+		return $fqcn;
+	}
 
 
-    /**
-     * build a string representation of a object's arguments
-     * (mostly because Closures can't be serialized)
-     *
-     * @param array $arguments
-     * @return string
-     */
-    protected function getIdentifierForArguments(array $arguments)
-    {
-        if (empty($arguments)) {
-            return '';
-        }
-        $identifier = '';
-        foreach ($arguments as $argument) {
-            switch (true) {
-                case is_object($argument):
-                case $argument instanceof Closure:
-                    $identifier .= spl_object_hash($argument);
-                    break;
-                case is_array($argument):
-                    $identifier .= $this->getIdentifierForArguments($argument);
-                    break;
-                default:
-                    $identifier .= $argument;
-                    break;
-            }
-        }
-        return $identifier;
-    }
+	/**
+	 * build a string representation of a object's arguments
+	 * (mostly because Closures can't be serialized)
+	 *
+	 * @param array $arguments
+	 * @return string
+	 */
+	protected function getIdentifierForArguments(array $arguments)
+	{
+		if (empty($arguments)) {
+			return '';
+		}
+		$identifier = '';
+		foreach ($arguments as $argument) {
+			switch (true) {
+				case is_object($argument):
+				case $argument instanceof Closure:
+					$identifier .= spl_object_hash($argument);
+					break;
+				case is_array($argument):
+					$identifier .= $this->getIdentifierForArguments($argument);
+					break;
+				default:
+					$identifier .= $argument;
+					break;
+			}
+		}
+		return $identifier;
+	}
 }

core/services/collections/Collection.php

Indentation +467 added lines, -467 removed lines

@@ -21,471 +21,471 @@
 class Collection extends SplObjectStorage implements CollectionInterface
 {
 
-    /**
-     * a unique string for identifying this collection
-     *
-     * @type string $collection_identifier
-     */
-    protected $collection_identifier;
-
-    /**
-     * an interface (or class) name to be used for restricting the type of objects added to the storage
-     * this should be set from within the child class constructor
-     *
-     * @type string $interface
-     */
-    protected $collection_interface;
-
-
-    /**
-     * Collection constructor
-     *
-     * @param string $collection_interface
-     * @throws InvalidInterfaceException
-     */
-    public function __construct($collection_interface)
-    {
-        $this->setCollectionInterface($collection_interface);
-        $this->setCollectionIdentifier();
-    }
-
-
-    /**
-     * @return string
-     */
-    public function collectionIdentifier()
-    {
-        return $this->collection_identifier;
-    }
-
-
-    /**
-     * creates a very readable unique 9 character identifier like:  CF2-532-DAC
-     * and appends it to the non-qualified class name, ex: ThingCollection-CF2-532-DAC
-     *
-     * @return void
-     */
-    protected function setCollectionIdentifier()
-    {
-        // hash a few collection details
-        $identifier = md5(spl_object_hash($this) . $this->collection_interface . time());
-        // grab a few characters from the start, middle, and end of the hash
-        $id = array();
-        for ($x = 0; $x < 19; $x += 9) {
-            $id[] = substr($identifier, $x, 3);
-        }
-        $identifier = basename(str_replace('\\', '/', get_class($this)));
-        $identifier .= '-' . strtoupper(implode('-', $id));
-        $this->collection_identifier = $identifier;
-    }
-
-
-    /**
-     * setCollectionInterface
-     *
-     * @access protected
-     * @param  string $collection_interface
-     * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
-     */
-    protected function setCollectionInterface($collection_interface)
-    {
-        if (! (interface_exists($collection_interface) || class_exists($collection_interface))) {
-            throw new InvalidInterfaceException($collection_interface);
-        }
-        $this->collection_interface = $collection_interface;
-    }
-
-
-    /**
-     * add
-     * attaches an object to the Collection
-     * and sets any supplied data associated with the current iterator entry
-     * by calling EE_Object_Collection::set_identifier()
-     *
-     * @access public
-     * @param        $object
-     * @param  mixed $identifier
-     * @return bool
-     * @throws InvalidEntityException
-     * @throws DuplicateCollectionIdentifierException
-     */
-    public function add($object, $identifier = null)
-    {
-        if (! $object instanceof $this->collection_interface) {
-            throw new InvalidEntityException($object, $this->collection_interface);
-        }
-        if ($this->contains($object)) {
-            throw new DuplicateCollectionIdentifierException($identifier);
-        }
-        $this->attach($object);
-        $this->setIdentifier($object, $identifier);
-        return $this->contains($object);
-    }
-
-
-    /**
-     * setIdentifier
-     * Sets the data associated with an object in the Collection
-     * if no $identifier is supplied, then the spl_object_hash() is used
-     *
-     * @access public
-     * @param        $object
-     * @param  mixed $identifier
-     * @return bool
-     */
-    public function setIdentifier($object, $identifier = null)
-    {
-        $identifier = ! empty($identifier)
-            ? $identifier
-            : spl_object_hash($object);
-        $this->rewind();
-        while ($this->valid()) {
-            if ($object === $this->current()) {
-                $this->setInfo($identifier);
-                $this->rewind();
-                return true;
-            }
-            $this->next();
-        }
-        return false;
-    }
-
-
-    /**
-     * get
-     * finds and returns an object in the Collection based on the identifier that was set using addObject()
-     * PLZ NOTE: the pointer is reset to the beginning of the collection before returning
-     *
-     * @access public
-     * @param mixed $identifier
-     * @return mixed
-     */
-    public function get($identifier)
-    {
-        $this->rewind();
-        while ($this->valid()) {
-            if ($identifier === $this->getInfo()) {
-                $object = $this->current();
-                $this->rewind();
-                return $object;
-            }
-            $this->next();
-        }
-        return null;
-    }
-
-
-    /**
-     * has
-     * returns TRUE or FALSE
-     * depending on whether the object is within the Collection
-     * based on the supplied $identifier
-     *
-     * @access public
-     * @param  mixed $identifier
-     * @return bool
-     */
-    public function has($identifier)
-    {
-        $this->rewind();
-        while ($this->valid()) {
-            if ($identifier === $this->getInfo()) {
-                $this->rewind();
-                return true;
-            }
-            $this->next();
-        }
-        return false;
-    }
-
-
-    /**
-     * hasObject
-     * returns TRUE or FALSE depending on whether the supplied object is within the Collection
-     *
-     * @access public
-     * @param $object
-     * @return bool
-     */
-    public function hasObject($object)
-    {
-        return $this->contains($object);
-    }
-
-
-    /**
-     * hasObjects
-     * returns true if there are objects within the Collection, and false if it is empty
-     *
-     * @access public
-     * @return bool
-     */
-    public function hasObjects()
-    {
-        return $this->count() !== 0;
-    }
-
-
-    /**
-     * isEmpty
-     * returns true if there are no objects within the Collection, and false if there are
-     *
-     * @access public
-     * @return bool
-     */
-    public function isEmpty()
-    {
-        return $this->count() === 0;
-    }
-
-
-    /**
-     * remove
-     * detaches an object from the Collection
-     *
-     * @access public
-     * @param $object
-     * @return bool
-     */
-    public function remove($object)
-    {
-        $this->detach($object);
-        return true;
-    }
-
-
-    /**
-     * setCurrent
-     * advances pointer to the object whose identifier matches that which was provided
-     *
-     * @access public
-     * @param mixed $identifier
-     * @return boolean
-     */
-    public function setCurrent($identifier)
-    {
-        $this->rewind();
-        while ($this->valid()) {
-            if ($identifier === $this->getInfo()) {
-                return true;
-            }
-            $this->next();
-        }
-        return false;
-    }
-
-
-    /**
-     * setCurrentUsingObject
-     * advances pointer to the provided object
-     *
-     * @access public
-     * @param $object
-     * @return boolean
-     */
-    public function setCurrentUsingObject($object)
-    {
-        $this->rewind();
-        while ($this->valid()) {
-            if ($this->current() === $object) {
-                return true;
-            }
-            $this->next();
-        }
-        return false;
-    }
-
-
-    /**
-     * Returns the object occupying the index before the current object,
-     * unless this is already the first object, in which case it just returns the first object
-     *
-     * @return mixed
-     */
-    public function previous()
-    {
-        $index = $this->indexOf($this->current());
-        if ($index === 0) {
-            return $this->current();
-        }
-        $index--;
-        return $this->objectAtIndex($index);
-    }
-
-
-    /**
-     * Returns the index of a given object, or false if not found
-     *
-     * @see http://stackoverflow.com/a/8736013
-     * @param $object
-     * @return boolean|int|string
-     */
-    public function indexOf($object)
-    {
-        if (! $this->contains($object)) {
-            return false;
-        }
-        foreach ($this as $index => $obj) {
-            if ($obj === $object) {
-                return $index;
-            }
-        }
-        return false;
-    }
-
-
-    /**
-     * Returns the object at the given index
-     *
-     * @see http://stackoverflow.com/a/8736013
-     * @param int $index
-     * @return mixed
-     */
-    public function objectAtIndex($index)
-    {
-        $iterator = new LimitIterator($this, $index, 1);
-        $iterator->rewind();
-        return $iterator->current();
-    }
-
-
-    /**
-     * Returns the sequence of objects as specified by the offset and length
-     *
-     * @see http://stackoverflow.com/a/8736013
-     * @param int $offset
-     * @param int $length
-     * @return array
-     */
-    public function slice($offset, $length)
-    {
-        $slice = array();
-        $iterator = new LimitIterator($this, $offset, $length);
-        foreach ($iterator as $object) {
-            $slice[] = $object;
-        }
-        return $slice;
-    }
-
-
-    /**
-     * Inserts an object at a certain point
-     *
-     * @see http://stackoverflow.com/a/8736013
-     * @param mixed $object A single object
-     * @param int   $index
-     * @param mixed $identifier
-     * @return bool
-     * @throws DuplicateCollectionIdentifierException
-     * @throws InvalidEntityException
-     */
-    public function insertObjectAt($object, $index, $identifier = null)
-    {
-        // check to ensure that objects don't already exist in the collection
-        if ($this->has($identifier)) {
-            throw new DuplicateCollectionIdentifierException($identifier);
-        }
-        // detach any objects at or past this index
-        $remaining_objects = array();
-        if ($index < $this->count()) {
-            $remaining_objects = $this->slice($index, $this->count() - $index);
-            foreach ($remaining_objects as $key => $remaining_object) {
-                // we need to grab the identifiers for each object and use them as keys
-                $remaining_objects[ $remaining_object->getInfo() ] = $remaining_object;
-                // and then remove the object from the current tracking array
-                unset($remaining_objects[ $key ]);
-                // and then remove it from the Collection
-                $this->detach($remaining_object);
-            }
-        }
-        // add the new object we're splicing in
-        $this->add($object, $identifier);
-        // attach the objects we previously detached
-        foreach ($remaining_objects as $key => $remaining_object) {
-            $this->add($remaining_object, $key);
-        }
-        return $this->contains($object);
-    }
-
-
-    /**
-     * Inserts an object (or an array of objects) at a certain point
-     *
-     * @see http://stackoverflow.com/a/8736013
-     * @param mixed $objects A single object or an array of objects
-     * @param int   $index
-     */
-    public function insertAt($objects, $index)
-    {
-        if (! is_array($objects)) {
-            $objects = array($objects);
-        }
-        // check to ensure that objects don't already exist in the collection
-        foreach ($objects as $key => $object) {
-            if ($this->contains($object)) {
-                unset($objects[ $key ]);
-            }
-        }
-        // do we have any objects left?
-        if (! $objects) {
-            return;
-        }
-        // detach any objects at or past this index
-        $remaining = array();
-        if ($index < $this->count()) {
-            $remaining = $this->slice($index, $this->count() - $index);
-            foreach ($remaining as $object) {
-                $this->detach($object);
-            }
-        }
-        // add the new objects we're splicing in
-        foreach ($objects as $object) {
-            $this->attach($object);
-        }
-        // attach the objects we previously detached
-        foreach ($remaining as $object) {
-            $this->attach($object);
-        }
-    }
-
-
-    /**
-     * Removes the object at the given index
-     *
-     * @see http://stackoverflow.com/a/8736013
-     * @param int $index
-     */
-    public function removeAt($index)
-    {
-        $this->detach($this->objectAtIndex($index));
-    }
-
-
-    /**
-     * detaches ALL objects from the Collection
-     */
-    public function detachAll()
-    {
-        $this->rewind();
-        while ($this->valid()) {
-            $object = $this->current();
-            $this->next();
-            $this->detach($object);
-        }
-    }
-
-
-    /**
-     * unsets and detaches ALL objects from the Collection
-     */
-    public function trashAndDetachAll()
-    {
-        $this->rewind();
-        while ($this->valid()) {
-            $object = $this->current();
-            $this->next();
-            $this->detach($object);
-            unset($object);
-        }
-    }
+	/**
+	 * a unique string for identifying this collection
+	 *
+	 * @type string $collection_identifier
+	 */
+	protected $collection_identifier;
+
+	/**
+	 * an interface (or class) name to be used for restricting the type of objects added to the storage
+	 * this should be set from within the child class constructor
+	 *
+	 * @type string $interface
+	 */
+	protected $collection_interface;
+
+
+	/**
+	 * Collection constructor
+	 *
+	 * @param string $collection_interface
+	 * @throws InvalidInterfaceException
+	 */
+	public function __construct($collection_interface)
+	{
+		$this->setCollectionInterface($collection_interface);
+		$this->setCollectionIdentifier();
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function collectionIdentifier()
+	{
+		return $this->collection_identifier;
+	}
+
+
+	/**
+	 * creates a very readable unique 9 character identifier like:  CF2-532-DAC
+	 * and appends it to the non-qualified class name, ex: ThingCollection-CF2-532-DAC
+	 *
+	 * @return void
+	 */
+	protected function setCollectionIdentifier()
+	{
+		// hash a few collection details
+		$identifier = md5(spl_object_hash($this) . $this->collection_interface . time());
+		// grab a few characters from the start, middle, and end of the hash
+		$id = array();
+		for ($x = 0; $x < 19; $x += 9) {
+			$id[] = substr($identifier, $x, 3);
+		}
+		$identifier = basename(str_replace('\\', '/', get_class($this)));
+		$identifier .= '-' . strtoupper(implode('-', $id));
+		$this->collection_identifier = $identifier;
+	}
+
+
+	/**
+	 * setCollectionInterface
+	 *
+	 * @access protected
+	 * @param  string $collection_interface
+	 * @throws \EventEspresso\core\exceptions\InvalidInterfaceException
+	 */
+	protected function setCollectionInterface($collection_interface)
+	{
+		if (! (interface_exists($collection_interface) || class_exists($collection_interface))) {
+			throw new InvalidInterfaceException($collection_interface);
+		}
+		$this->collection_interface = $collection_interface;
+	}
+
+
+	/**
+	 * add
+	 * attaches an object to the Collection
+	 * and sets any supplied data associated with the current iterator entry
+	 * by calling EE_Object_Collection::set_identifier()
+	 *
+	 * @access public
+	 * @param        $object
+	 * @param  mixed $identifier
+	 * @return bool
+	 * @throws InvalidEntityException
+	 * @throws DuplicateCollectionIdentifierException
+	 */
+	public function add($object, $identifier = null)
+	{
+		if (! $object instanceof $this->collection_interface) {
+			throw new InvalidEntityException($object, $this->collection_interface);
+		}
+		if ($this->contains($object)) {
+			throw new DuplicateCollectionIdentifierException($identifier);
+		}
+		$this->attach($object);
+		$this->setIdentifier($object, $identifier);
+		return $this->contains($object);
+	}
+
+
+	/**
+	 * setIdentifier
+	 * Sets the data associated with an object in the Collection
+	 * if no $identifier is supplied, then the spl_object_hash() is used
+	 *
+	 * @access public
+	 * @param        $object
+	 * @param  mixed $identifier
+	 * @return bool
+	 */
+	public function setIdentifier($object, $identifier = null)
+	{
+		$identifier = ! empty($identifier)
+			? $identifier
+			: spl_object_hash($object);
+		$this->rewind();
+		while ($this->valid()) {
+			if ($object === $this->current()) {
+				$this->setInfo($identifier);
+				$this->rewind();
+				return true;
+			}
+			$this->next();
+		}
+		return false;
+	}
+
+
+	/**
+	 * get
+	 * finds and returns an object in the Collection based on the identifier that was set using addObject()
+	 * PLZ NOTE: the pointer is reset to the beginning of the collection before returning
+	 *
+	 * @access public
+	 * @param mixed $identifier
+	 * @return mixed
+	 */
+	public function get($identifier)
+	{
+		$this->rewind();
+		while ($this->valid()) {
+			if ($identifier === $this->getInfo()) {
+				$object = $this->current();
+				$this->rewind();
+				return $object;
+			}
+			$this->next();
+		}
+		return null;
+	}
+
+
+	/**
+	 * has
+	 * returns TRUE or FALSE
+	 * depending on whether the object is within the Collection
+	 * based on the supplied $identifier
+	 *
+	 * @access public
+	 * @param  mixed $identifier
+	 * @return bool
+	 */
+	public function has($identifier)
+	{
+		$this->rewind();
+		while ($this->valid()) {
+			if ($identifier === $this->getInfo()) {
+				$this->rewind();
+				return true;
+			}
+			$this->next();
+		}
+		return false;
+	}
+
+
+	/**
+	 * hasObject
+	 * returns TRUE or FALSE depending on whether the supplied object is within the Collection
+	 *
+	 * @access public
+	 * @param $object
+	 * @return bool
+	 */
+	public function hasObject($object)
+	{
+		return $this->contains($object);
+	}
+
+
+	/**
+	 * hasObjects
+	 * returns true if there are objects within the Collection, and false if it is empty
+	 *
+	 * @access public
+	 * @return bool
+	 */
+	public function hasObjects()
+	{
+		return $this->count() !== 0;
+	}
+
+
+	/**
+	 * isEmpty
+	 * returns true if there are no objects within the Collection, and false if there are
+	 *
+	 * @access public
+	 * @return bool
+	 */
+	public function isEmpty()
+	{
+		return $this->count() === 0;
+	}
+
+
+	/**
+	 * remove
+	 * detaches an object from the Collection
+	 *
+	 * @access public
+	 * @param $object
+	 * @return bool
+	 */
+	public function remove($object)
+	{
+		$this->detach($object);
+		return true;
+	}
+
+
+	/**
+	 * setCurrent
+	 * advances pointer to the object whose identifier matches that which was provided
+	 *
+	 * @access public
+	 * @param mixed $identifier
+	 * @return boolean
+	 */
+	public function setCurrent($identifier)
+	{
+		$this->rewind();
+		while ($this->valid()) {
+			if ($identifier === $this->getInfo()) {
+				return true;
+			}
+			$this->next();
+		}
+		return false;
+	}
+
+
+	/**
+	 * setCurrentUsingObject
+	 * advances pointer to the provided object
+	 *
+	 * @access public
+	 * @param $object
+	 * @return boolean
+	 */
+	public function setCurrentUsingObject($object)
+	{
+		$this->rewind();
+		while ($this->valid()) {
+			if ($this->current() === $object) {
+				return true;
+			}
+			$this->next();
+		}
+		return false;
+	}
+
+
+	/**
+	 * Returns the object occupying the index before the current object,
+	 * unless this is already the first object, in which case it just returns the first object
+	 *
+	 * @return mixed
+	 */
+	public function previous()
+	{
+		$index = $this->indexOf($this->current());
+		if ($index === 0) {
+			return $this->current();
+		}
+		$index--;
+		return $this->objectAtIndex($index);
+	}
+
+
+	/**
+	 * Returns the index of a given object, or false if not found
+	 *
+	 * @see http://stackoverflow.com/a/8736013
+	 * @param $object
+	 * @return boolean|int|string
+	 */
+	public function indexOf($object)
+	{
+		if (! $this->contains($object)) {
+			return false;
+		}
+		foreach ($this as $index => $obj) {
+			if ($obj === $object) {
+				return $index;
+			}
+		}
+		return false;
+	}
+
+
+	/**
+	 * Returns the object at the given index
+	 *
+	 * @see http://stackoverflow.com/a/8736013
+	 * @param int $index
+	 * @return mixed
+	 */
+	public function objectAtIndex($index)
+	{
+		$iterator = new LimitIterator($this, $index, 1);
+		$iterator->rewind();
+		return $iterator->current();
+	}
+
+
+	/**
+	 * Returns the sequence of objects as specified by the offset and length
+	 *
+	 * @see http://stackoverflow.com/a/8736013
+	 * @param int $offset
+	 * @param int $length
+	 * @return array
+	 */
+	public function slice($offset, $length)
+	{
+		$slice = array();
+		$iterator = new LimitIterator($this, $offset, $length);
+		foreach ($iterator as $object) {
+			$slice[] = $object;
+		}
+		return $slice;
+	}
+
+
+	/**
+	 * Inserts an object at a certain point
+	 *
+	 * @see http://stackoverflow.com/a/8736013
+	 * @param mixed $object A single object
+	 * @param int   $index
+	 * @param mixed $identifier
+	 * @return bool
+	 * @throws DuplicateCollectionIdentifierException
+	 * @throws InvalidEntityException
+	 */
+	public function insertObjectAt($object, $index, $identifier = null)
+	{
+		// check to ensure that objects don't already exist in the collection
+		if ($this->has($identifier)) {
+			throw new DuplicateCollectionIdentifierException($identifier);
+		}
+		// detach any objects at or past this index
+		$remaining_objects = array();
+		if ($index < $this->count()) {
+			$remaining_objects = $this->slice($index, $this->count() - $index);
+			foreach ($remaining_objects as $key => $remaining_object) {
+				// we need to grab the identifiers for each object and use them as keys
+				$remaining_objects[ $remaining_object->getInfo() ] = $remaining_object;
+				// and then remove the object from the current tracking array
+				unset($remaining_objects[ $key ]);
+				// and then remove it from the Collection
+				$this->detach($remaining_object);
+			}
+		}
+		// add the new object we're splicing in
+		$this->add($object, $identifier);
+		// attach the objects we previously detached
+		foreach ($remaining_objects as $key => $remaining_object) {
+			$this->add($remaining_object, $key);
+		}
+		return $this->contains($object);
+	}
+
+
+	/**
+	 * Inserts an object (or an array of objects) at a certain point
+	 *
+	 * @see http://stackoverflow.com/a/8736013
+	 * @param mixed $objects A single object or an array of objects
+	 * @param int   $index
+	 */
+	public function insertAt($objects, $index)
+	{
+		if (! is_array($objects)) {
+			$objects = array($objects);
+		}
+		// check to ensure that objects don't already exist in the collection
+		foreach ($objects as $key => $object) {
+			if ($this->contains($object)) {
+				unset($objects[ $key ]);
+			}
+		}
+		// do we have any objects left?
+		if (! $objects) {
+			return;
+		}
+		// detach any objects at or past this index
+		$remaining = array();
+		if ($index < $this->count()) {
+			$remaining = $this->slice($index, $this->count() - $index);
+			foreach ($remaining as $object) {
+				$this->detach($object);
+			}
+		}
+		// add the new objects we're splicing in
+		foreach ($objects as $object) {
+			$this->attach($object);
+		}
+		// attach the objects we previously detached
+		foreach ($remaining as $object) {
+			$this->attach($object);
+		}
+	}
+
+
+	/**
+	 * Removes the object at the given index
+	 *
+	 * @see http://stackoverflow.com/a/8736013
+	 * @param int $index
+	 */
+	public function removeAt($index)
+	{
+		$this->detach($this->objectAtIndex($index));
+	}
+
+
+	/**
+	 * detaches ALL objects from the Collection
+	 */
+	public function detachAll()
+	{
+		$this->rewind();
+		while ($this->valid()) {
+			$object = $this->current();
+			$this->next();
+			$this->detach($object);
+		}
+	}
+
+
+	/**
+	 * unsets and detaches ALL objects from the Collection
+	 */
+	public function trashAndDetachAll()
+	{
+		$this->rewind();
+		while ($this->valid()) {
+			$object = $this->current();
+			$this->next();
+			$this->detach($object);
+			unset($object);
+		}
+	}
 }

Spacing +10 added lines, -10 removed lines

@@ -68,14 +68,14 @@ 
     protected function setCollectionIdentifier()
     {
         // hash a few collection details
-        $identifier = md5(spl_object_hash($this) . $this->collection_interface . time());
+        $identifier = md5(spl_object_hash($this).$this->collection_interface.time());
         // grab a few characters from the start, middle, and end of the hash
         $id = array();
         for ($x = 0; $x < 19; $x += 9) {
             $id[] = substr($identifier, $x, 3);
         }
         $identifier = basename(str_replace('\\', '/', get_class($this)));
-        $identifier .= '-' . strtoupper(implode('-', $id));
+        $identifier .= '-'.strtoupper(implode('-', $id));
         $this->collection_identifier = $identifier;
     }
 
@@ -89,7 +89,7 @@ 
      */
     protected function setCollectionInterface($collection_interface)
     {
-        if (! (interface_exists($collection_interface) || class_exists($collection_interface))) {
+        if ( ! (interface_exists($collection_interface) || class_exists($collection_interface))) {
             throw new InvalidInterfaceException($collection_interface);
         }
         $this->collection_interface = $collection_interface;
@@ -111,7 +111,7 @@ 
      */
     public function add($object, $identifier = null)
     {
-        if (! $object instanceof $this->collection_interface) {
+        if ( ! $object instanceof $this->collection_interface) {
             throw new InvalidEntityException($object, $this->collection_interface);
         }
         if ($this->contains($object)) {
@@ -322,7 +322,7 @@ 
      */
     public function indexOf($object)
     {
-        if (! $this->contains($object)) {
+        if ( ! $this->contains($object)) {
             return false;
         }
         foreach ($this as $index => $obj) {
@@ -391,9 +391,9 @@ 
             $remaining_objects = $this->slice($index, $this->count() - $index);
             foreach ($remaining_objects as $key => $remaining_object) {
                 // we need to grab the identifiers for each object and use them as keys
-                $remaining_objects[ $remaining_object->getInfo() ] = $remaining_object;
+                $remaining_objects[$remaining_object->getInfo()] = $remaining_object;
                 // and then remove the object from the current tracking array
-                unset($remaining_objects[ $key ]);
+                unset($remaining_objects[$key]);
                 // and then remove it from the Collection
                 $this->detach($remaining_object);
             }
@@ -417,17 +417,17 @@ 
      */
     public function insertAt($objects, $index)
     {
-        if (! is_array($objects)) {
+        if ( ! is_array($objects)) {
             $objects = array($objects);
         }
         // check to ensure that objects don't already exist in the collection
         foreach ($objects as $key => $object) {
             if ($this->contains($object)) {
-                unset($objects[ $key ]);
+                unset($objects[$key]);
             }
         }
         // do we have any objects left?
-        if (! $objects) {
+        if ( ! $objects) {
             return;
         }
         // detach any objects at or past this index

espresso.php

Indentation +79 added lines, -79 removed lines

@@ -38,103 +38,103 @@
  * @since       4.0
  */
 if (function_exists('espresso_version')) {
-    if (! function_exists('espresso_duplicate_plugin_error')) {
-        /**
-         *    espresso_duplicate_plugin_error
-         *    displays if more than one version of EE is activated at the same time
-         */
-        function espresso_duplicate_plugin_error()
-        {
-            ?>
+	if (! function_exists('espresso_duplicate_plugin_error')) {
+		/**
+		 *    espresso_duplicate_plugin_error
+		 *    displays if more than one version of EE is activated at the same time
+		 */
+		function espresso_duplicate_plugin_error()
+		{
+			?>
             <div class="error">
                 <p>
                     <?php
-                    echo esc_html__(
-                        'Can not run multiple versions of Event Espresso! One version has been automatically deactivated. Please verify that you have the correct version you want still active.',
-                        'event_espresso'
-                    ); ?>
+					echo esc_html__(
+						'Can not run multiple versions of Event Espresso! One version has been automatically deactivated. Please verify that you have the correct version you want still active.',
+						'event_espresso'
+					); ?>
                 </p>
             </div>
             <?php
-            espresso_deactivate_plugin(plugin_basename(__FILE__));
-        }
-    }
-    add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
+			espresso_deactivate_plugin(plugin_basename(__FILE__));
+		}
+	}
+	add_action('admin_notices', 'espresso_duplicate_plugin_error', 1);
 
 } else {
-    define('EE_MIN_PHP_VER_REQUIRED', '5.4.0');
-    if (! version_compare(PHP_VERSION, EE_MIN_PHP_VER_REQUIRED, '>=')) {
-        /**
-         * espresso_minimum_php_version_error
-         * @return void
-         */
-        function espresso_minimum_php_version_error()
-        {
-            ?>
+	define('EE_MIN_PHP_VER_REQUIRED', '5.4.0');
+	if (! version_compare(PHP_VERSION, EE_MIN_PHP_VER_REQUIRED, '>=')) {
+		/**
+		 * espresso_minimum_php_version_error
+		 * @return void
+		 */
+		function espresso_minimum_php_version_error()
+		{
+			?>
             <div class="error">
                 <p>
                     <?php
-                    printf(
-                        esc_html__(
-                            'We\'re sorry, but Event Espresso requires PHP version %1$s or greater in order to operate. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
-                            'event_espresso'
-                        ),
-                        EE_MIN_PHP_VER_REQUIRED,
-                        PHP_VERSION,
-                        '<br/>',
-                        '<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
-                    );
-                    ?>
+					printf(
+						esc_html__(
+							'We\'re sorry, but Event Espresso requires PHP version %1$s or greater in order to operate. You are currently running version %2$s.%3$sIn order to update your version of PHP, you will need to contact your current hosting provider.%3$sFor information on stable PHP versions, please go to %4$s.',
+							'event_espresso'
+						),
+						EE_MIN_PHP_VER_REQUIRED,
+						PHP_VERSION,
+						'<br/>',
+						'<a href="http://php.net/downloads.php">http://php.net/downloads.php</a>'
+					);
+					?>
                 </p>
             </div>
             <?php
-            espresso_deactivate_plugin(plugin_basename(__FILE__));
-        }
+			espresso_deactivate_plugin(plugin_basename(__FILE__));
+		}
 
-        add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
-    } else {
-        define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
-        /**
-         * espresso_version
-         * Returns the plugin version
-         *
-         * @return string
-         */
-        function espresso_version()
-        {
-            return apply_filters('FHEE__espresso__espresso_version', '4.9.62.rc.033');
-        }
+		add_action('admin_notices', 'espresso_minimum_php_version_error', 1);
+	} else {
+		define('EVENT_ESPRESSO_MAIN_FILE', __FILE__);
+		/**
+		 * espresso_version
+		 * Returns the plugin version
+		 *
+		 * @return string
+		 */
+		function espresso_version()
+		{
+			return apply_filters('FHEE__espresso__espresso_version', '4.9.62.rc.033');
+		}
 
-        /**
-         * espresso_plugin_activation
-         * adds a wp-option to indicate that EE has been activated via the WP admin plugins page
-         */
-        function espresso_plugin_activation()
-        {
-            update_option('ee_espresso_activation', true);
-        }
+		/**
+		 * espresso_plugin_activation
+		 * adds a wp-option to indicate that EE has been activated via the WP admin plugins page
+		 */
+		function espresso_plugin_activation()
+		{
+			update_option('ee_espresso_activation', true);
+		}
 
-        register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
+		register_activation_hook(EVENT_ESPRESSO_MAIN_FILE, 'espresso_plugin_activation');
 
-        require_once __DIR__ . '/core/bootstrap_espresso.php';
-        bootstrap_espresso();
-    }
+		require_once __DIR__ . '/core/bootstrap_espresso.php';
+		bootstrap_espresso();
+	}
 }
 if (! function_exists('espresso_deactivate_plugin')) {
-    /**
-     *    deactivate_plugin
-     * usage:  espresso_deactivate_plugin( plugin_basename( __FILE__ ));
-     *
-     * @access public
-     * @param string $plugin_basename - the results of plugin_basename( __FILE__ ) for the plugin's main file
-     * @return    void
-     */
-    function espresso_deactivate_plugin($plugin_basename = '')
-    {
-        if (! function_exists('deactivate_plugins')) {
-            require_once ABSPATH . 'wp-admin/includes/plugin.php';
-        }
-        unset($_GET['activate'], $_REQUEST['activate']);
-        deactivate_plugins($plugin_basename);
-    }
+	/**
+	 *    deactivate_plugin
+	 * usage:  espresso_deactivate_plugin( plugin_basename( __FILE__ ));
+	 *
+	 * @access public
+	 * @param string $plugin_basename - the results of plugin_basename( __FILE__ ) for the plugin's main file
+	 * @return    void
+	 */
+	function espresso_deactivate_plugin($plugin_basename = '')
+	{
+		if (! function_exists('deactivate_plugins')) {
+			require_once ABSPATH . 'wp-admin/includes/plugin.php';
+		}
+		unset($_GET['activate'], $_REQUEST['activate']);
+		deactivate_plugins($plugin_basename);
+	}
 }