Cart::addEventListener() - Code Metrics - Inspection of "Added tests for Aura Session" - jamesdb/cart - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 53f387...6a6ffb )

by James

created 2016-03-20 12:38 UTC

Cart::addEventListener() A

↳ Parent: Cart

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	1
CRAP Score	1

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
c	2
b	0
f	0
dl	0
loc	4
ccs	1
cts	1
cp	1
rs	10
cc	1
eloc	2
nc	1
nop	2
crap	1

<?php

namespace jamesdb\Cart;

use jamesdb\Cart\CartItem;
use jamesdb\Cart\Event as CartEvent;
use jamesdb\Cart\Exception as CartException;
use jamesdb\Cart\Storage\StorageInterface;
use League\Event\Emitter;
use SebastianBergmann\Money\Currency;
use SebastianBergmann\Money\Money;

class Cart implements CurrencyAwareInterface
{
    use CurrencyAwareTrait;

    /**
     * @var string
     */
    protected $identifier;

    /**
     * @var \jamesdb\Cart\Storage\StorageInterface
     */
    protected $storage;

    /**
     * Cart Contents.
     *
     * @var array
     */
    protected $contents = [];

    /**
     * Event Emitter.
     *
     * @var \League\Event\Emitter
     */
    protected $eventEmitter;

    /**
     * Constructor.
     *
     * @param string                                 $identifier
     * @param \jamesdb\Cart\Storage\StorageInterface $storage
     */
    public function __construct($identifier, StorageInterface $storage)
    {
        $this->identifier   = $identifier;
        $this->storage      = $storage;
        $this->currency     = $this->currency ?: new Currency('GBP');
        $this->eventEmitter = $this->eventEmitter ?: new Emitter();

        $this->restore();
    }

    /**
     * Add an Event Listener to the Emitter.
     *
     * @param  string          $eventName
     * @param  callable|object $listener
     *
     * @return void
     */
    public function addEventListener($eventName, $listener)
    {
        $this->eventEmitter->addListener($eventName, $listener);
    }

    /**
     * Returns the Event Emitter.
     *
     * @return \League\Event\Emitter
     */
    public function getEventEmitter()
    {
        return $this->eventEmitter;
    }

    /**
     * Add an item.
     *
     * @param  \jamesdb\Cart\CartItem $item
     *
     * @return string
     */
    public function add(CartItem $item)
    {
        $rowId = $item->getRowId();

        if ($row = $this->getItem($rowId)) {
            $row->quantity += $item->quantity;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
        } else {
            $this->contents[$rowId] = $item;
        }

        $this->storage->store($this->identifier, serialize($this->toArray()));

        $this->getEventEmitter()->emit(new CartEvent\CartItemAddEvent($this, $item));

        return $rowId;
    }

    /**
     * Remove an item.
     *
     * @param  string $rowId
     *
     * @throws \jamesdb\Cart\Exception\CartRemoveItemException
     *
     * @return boolean
     */
    public function remove($rowId)
    {
        $item = $this->getItem($rowId);

        if ($item === null) {
            throw new CartException\CartItemRemoveException(
                sprintf('No such item with rowid (%s).', $rowId)
            );
        }

        unset($this->contents[$rowId]);

        $this->storage->store($this->identifier, serialize($this->contents));

        $this->getEventEmitter()->emit(new CartEvent\CartItemRemoveEvent($this, $item));
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);

        return true;
    }

    /**
     * Update an item stored in the Cart.
     *
     * @param  string $rowId
     * @param  array  $data
     *
     * @throws \jamesdb\Cart\Exception\CartUpdateException
     *
     * @return boolean
     */
    public function update($rowId, array $data = [])
    {
        $row = $this->getItem($rowId);

        if ($row === null) {
            throw new CartException\CartItemUpdateException(
                sprintf('Could not update item (%s).', $rowId)
            );
        }

        foreach ($data as $key => $value) {
            $row->{$key} = $value;
        }

        $this->getEventEmitter()->emit(new CartEvent\CartItemUpdateEvent($this, $row));
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);

        return true;
    }

    /**
     * Clear the cart.
     *
     * @return void
     */
    public function clear()
    {
        $this->storage->clear($this->identifier);

        $this->contents = [];
    }

    /**
     * Get a specific item from the cart.
     *
     * @param  string $rowId
     *
     * @return array|null
     */
    public function getItem($rowId)
    {
        if (array_key_exists($rowId, $this->contents)) {
            return $this->contents[$rowId];
        }

        return null;
    }

    /**
     * Return items.
     *
     * @return array
     */
    public function getItems()
    {
        return $this->contents;
    }

    /**
     * Return a filtered array of cart items.
     *
     * @param  string $key
     * @param  mixed  $value
     *
     * @return array
     */
    public function filter($key, $value)
    {
        return array_filter($this->contents, function(CartItem $item) use ($key, $value) {
            if ((isset($item[$key])) && ($item[$key] === $value)) {
                return $item;
            }
        });
    }

    /**
     * Return the total amount of unique items.
     *
     * @return integer
     */
    public function getTotalUniqueItems()
    {
        return count($this->contents);
    }

    /**
     * Return the total amount of items.
     *
     * @return integer
     */
    public function getTotalItems()
    {
        return array_sum(
            array_map(function(CartItem $item) {
                return $item->quantity;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
            }, $this->contents)
        );
    }

    /**
     * Returns whether the cart is empty.
     *
     * @return boolean
     */
    public function isEmpty()
    {
        return ($this->getTotalUniqueItems() === 0);
    }

    /**
     * Return the price including tax.
     *
     * @return integer
     */
    public function getTotalPrice()
    {
        $total = new Money(array_sum(
            array_map(function(CartItem $item) {
                return $item->getPrice($this->getCurrency())->getAmount();
            }, $this->contents)
        ), $this->getCurrency());

        return $total->getConvertedAmount();
    }

    /**
     * Return the price excluding tax.
     *
     * @return integer
     */
    public function getTotalPriceExcludingTax()
    {
        $total = new Money(array_sum(
            array_map(function(CartItem $item) {
                return $item->getPriceExcludingTax($this->getCurrency())->getAmount();
            }, $this->contents)
        ), $this->getCurrency());

        return $total->getConvertedAmount();
    }

    /**
     * Return the carts total tax.
     *
     * @return integer
     */
    public function getTotalTax()
    {
        $total = new Money(array_sum(
            array_map(function(CartItem $item) {
                return $item->getTax($this->getCurrency())->getAmount();
            }, $this->contents)
        ), $this->getCurrency());

        return $total->getConvertedAmount();
    }

    /**
     * Restore the cart from storage.
     *
     * @throws \jamesdb\Cart\Exception\CartRestoreException
     *
     * @return boolean
     */
    public function restore()
    {
        $data = $this->storage->get($this->identifier);

        if (! empty($data)) {
            $data = unserialize($data);

            if (is_array($data) && is_string($data['id']) && is_array($data['items'])) {
                foreach ($data['items'] as $item) {
                    $this->contents[$item['id']] = new CartItem($item['data']);
                }

                return true;
            }

            throw new CartException\CartRestoreException(
                sprintf(
                    'Unable to restore cart [%s] from storage, ensure id is a string and the items are an array',
                    $this->identifier
                )
            );
        }

        return false;
    }

    /**
     * Export the cart to array.
     *
     * @return array
     */
    public function toArray()
    {
        return [
            'id'    => $this->identifier,
            'items' => array_map(function (CartItem $item) {
                return $item->toArray();
            }, $this->contents)
        ];
    }
}


1		<?php
2
3		namespace jamesdb\Cart;
4
5		use jamesdb\Cart\CartItem;
6		use jamesdb\Cart\Event as CartEvent;
7		use jamesdb\Cart\Exception as CartException;
8		use jamesdb\Cart\Storage\StorageInterface;
9		use League\Event\Emitter;
10		use SebastianBergmann\Money\Currency;
11		use SebastianBergmann\Money\Money;
12
13		class Cart implements CurrencyAwareInterface
14		{
15		use CurrencyAwareTrait;
16
17		/**
18		* @var string
19		*/
20		protected $identifier;
21
22		/**
23		* @var \jamesdb\Cart\Storage\StorageInterface
24		*/
25		protected $storage;
26
27		/**
28		* Cart Contents.
29		*
30		* @var array
31		*/
32		protected $contents = [];
33
34		/**
35		* Event Emitter.
36		*
37		* @var \League\Event\Emitter
38		*/
39		protected $eventEmitter;
40
41		/**
42		* Constructor.
43		*
44		* @param string $identifier
45		* @param \jamesdb\Cart\Storage\StorageInterface $storage
46		*/
47		public function __construct($identifier, StorageInterface $storage)
48		{
49		$this->identifier = $identifier;
50		$this->storage = $storage;
51		$this->currency = $this->currency ?: new Currency('GBP');
52	72	$this->eventEmitter = $this->eventEmitter ?: new Emitter();
53
54	72	$this->restore();
55	72	}
56	72
57	72	/**
58		* Add an Event Listener to the Emitter.
59	72	*
60	72	* @param string $eventName
61		* @param callable\|object $listener
62		*
63		* @return void
64		*/
65		public function addEventListener($eventName, $listener)
66		{
67	3	$this->eventEmitter->addListener($eventName, $listener);
68		}
69	3
70	3	/**
71		* Returns the Event Emitter.
72		*
73		* @return \League\Event\Emitter
74		*/
75		public function getEventEmitter()
76		{
77	9	return $this->eventEmitter;
78		}
79	9
80		/**
81		* Add an item.
82		*
83		* @param \jamesdb\Cart\CartItem $item
84		*
85		* @return string
86		*/
87		public function add(CartItem $item)
88		{
89		$rowId = $item->getRowId();
90	9
91		if ($row = $this->getItem($rowId)) {
92	9	$row->quantity += $item->quantity;
		0 ignored issues – show Documentation introduced 2016-01-03 18:54 UTC by Report Bug Copy Issue Report The property `quantity` does not exist on `object<jamesdb\Cart\CartItem>`. Since you implemented `__set`, maybe consider adding a @property annotation. Since your code implements the magic setter `_set`, this function will be called for any write access on an undefined variable. You can add the `@property` annotation to your class or interface to document the existence of this variable. <?php /** * @property int $x * @property int $y * @property string $text */ class MyLabel { private $properties; private $allowedProperties = array('x', 'y', 'text'); public function __get($name) { if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) { return $properties[$name]; } else { return null; } } public function __set($name, $value) { if (in_array($name, $this->allowedProperties)) { $properties[$name] = $value; } else { throw new \LogicException("Property $name is not defined."); } } } Since the property has write access only, you can use the @property-write annotation instead. Of course, you may also just have mistyped another name, in which case you should fix the error. See also the PhpDoc documentation for @property. Loading history...
93	9	} else {
94		$this->contents[$rowId] = $item;
95		}
96
97		$this->storage->store($this->identifier, serialize($this->toArray()));
98
99		$this->getEventEmitter()->emit(new CartEvent\CartItemAddEvent($this, $item));
100	36
101		return $rowId;
102	36	}
103
104		/**
105		* Remove an item.
106		*
107		* @param string $rowId
108		*
109		* @throws \jamesdb\Cart\Exception\CartRemoveItemException
110		*
111		* @return boolean
112	36	*/
113		public function remove($rowId)
114	36	{
115		$item = $this->getItem($rowId);
116	36
117	6	if ($item === null) {
118	6	throw new CartException\CartItemRemoveException(
119	36	sprintf('No such item with rowid (%s).', $rowId)
120		);
121		}
122	36
123		unset($this->contents[$rowId]);
124	36
125		$this->storage->store($this->identifier, serialize($this->contents));
126	36
127		$this->getEventEmitter()->emit(new CartEvent\CartItemRemoveEvent($this, $item));
		0 ignored issues – show Documentation introduced 2016-01-03 18:54 UTC by Report Bug Copy Issue Report `$item` is of type `array`, but the function expects a `object<jamesdb\Cart\CartItem>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
128
129		return true;
130		}
131
132		/**
133		* Update an item stored in the Cart.
134		*
135		* @param string $rowId
136		* @param array $data
137		*
138	9	* @throws \jamesdb\Cart\Exception\CartUpdateException
139		*
140	9	* @return boolean
141		*/
142	9	public function update($rowId, array $data = [])
143	3	{
144	3	$row = $this->getItem($rowId);
145	3
146		if ($row === null) {
147		throw new CartException\CartItemUpdateException(
148	6	sprintf('Could not update item (%s).', $rowId)
149		);
150	6	}
151
152	6	foreach ($data as $key => $value) {
153		$row->{$key} = $value;
154	6	}
155
156		$this->getEventEmitter()->emit(new CartEvent\CartItemUpdateEvent($this, $row));
		0 ignored issues – show Documentation introduced 2016-01-03 18:54 UTC by Report Bug Copy Issue Report `$row` is of type `array`, but the function expects a `object<jamesdb\Cart\CartItem>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
157
158		return true;
159		}
160
161		/**
162		* Clear the cart.
163		*
164		* @return void
165		*/
166		public function clear()
167	9	{
168		$this->storage->clear($this->identifier);
169	9
170		$this->contents = [];
171	9	}
172	3
173	3	/**
174	3	* Get a specific item from the cart.
175		*
176		* @param string $rowId
177	6	*
178	6	* @return array\|null
179	6	*/
180		public function getItem($rowId)
181	6	{
182		if (array_key_exists($rowId, $this->contents)) {
183	6	return $this->contents[$rowId];
184		}
185
186		return null;
187		}
188
189		/**
190		* Return items.
191	72	*
192		* @return array
193	72	*/
194		public function getItems()
195	72	{
196	72	return $this->contents;
197		}
198
199		/**
200		* Return a filtered array of cart items.
201		*
202		* @param string $key
203		* @param mixed $value
204		*
205	45	* @return array
206		*/
207	45	public function filter($key, $value)
208	21	{
209		return array_filter($this->contents, function(CartItem $item) use ($key, $value) {
210		if ((isset($item[$key])) && ($item[$key] === $value)) {
211	42	return $item;
212		}
213		});
214		}
215
216		/**
217		* Return the total amount of unique items.
218		*
219	3	* @return integer
220		*/
221	3	public function getTotalUniqueItems()
222		{
223		return count($this->contents);
224		}
225
226		/**
227		* Return the total amount of items.
228		*
229		* @return integer
230		*/
231		public function getTotalItems()
232	3	{
233		return array_sum(
234		array_map(function(CartItem $item) {
235	3	return $item->quantity;
		0 ignored issues – show Documentation introduced 2016-01-03 18:54 UTC by Report Bug Copy Issue Report The property `quantity` does not exist on `object<jamesdb\Cart\CartItem>`. Since you implemented `__get`, maybe consider adding a @property annotation. Since your code implements the magic getter `_get`, this function will be called for any read access on an undefined variable. You can add the `@property` annotation to your class or interface to document the existence of this variable. <?php /** * @property int $x * @property int $y * @property string $text */ class MyLabel { private $properties; private $allowedProperties = array('x', 'y', 'text'); public function __get($name) { if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) { return $properties[$name]; } else { return null; } } public function __set($name, $value) { if (in_array($name, $this->allowedProperties)) { $properties[$name] = $value; } else { throw new \LogicException("Property $name is not defined."); } } } If the property has read access only, you can use the @property-read annotation instead. Of course, you may also just have mistyped another name, in which case you should fix the error. See also the PhpDoc documentation for @property. Loading history...
236	3	}, $this->contents)
237		);
238	3	}
239
240		/**
241		* Returns whether the cart is empty.
242		*
243		* @return boolean
244		*/
245		public function isEmpty()
246	18	{
247		return ($this->getTotalUniqueItems() === 0);
248	18	}
249
250		/**
251		* Return the price including tax.
252		*
253		* @return integer
254		*/
255		public function getTotalPrice()
256	9	{
257		$total = new Money(array_sum(
258	9	array_map(function(CartItem $item) {
259		return $item->getPrice($this->getCurrency())->getAmount();
260	9	}, $this->contents)
261	9	), $this->getCurrency());
262	9
263		return $total->getConvertedAmount();
264		}
265
266		/**
267		* Return the price excluding tax.
268		*
269		* @return integer
270	9	*/
271		public function getTotalPriceExcludingTax()
272	9	{
273		$total = new Money(array_sum(
274		array_map(function(CartItem $item) {
275		return $item->getPriceExcludingTax($this->getCurrency())->getAmount();
276		}, $this->contents)
277		), $this->getCurrency());
278
279		return $total->getConvertedAmount();
280	3	}
281
282	3	/**
283		* Return the carts total tax.
284	3	*
285	3	* @return integer
286	3	*/
287		public function getTotalTax()
288	3	{
289		$total = new Money(array_sum(
290		array_map(function(CartItem $item) {
291		return $item->getTax($this->getCurrency())->getAmount();
292		}, $this->contents)
293		), $this->getCurrency());
294
295		return $total->getConvertedAmount();
296	3	}
297
298	3	/**
299		* Restore the cart from storage.
300	3	*
301	3	* @throws \jamesdb\Cart\Exception\CartRestoreException
302	3	*
303		* @return boolean
304	3	*/
305		public function restore()
306		{
307		$data = $this->storage->get($this->identifier);
308
309		if (! empty($data)) {
310		$data = unserialize($data);
311
312	3	if (is_array($data) && is_string($data['id']) && is_array($data['items'])) {
313		foreach ($data['items'] as $item) {
314	3	$this->contents[$item['id']] = new CartItem($item['data']);
315		}
316	3
317	3	return true;
318	3	}
319
320	3	throw new CartException\CartRestoreException(
321		sprintf(
322		'Unable to restore cart [%s] from storage, ensure id is a string and the items are an array',
323		$this->identifier
324		)
325		);
326		}
327
328		return false;
329		}
330	72
331		/**
332	72	* Export the cart to array.
333		*
334	72	* @return array
335	18	*/
336		public function toArray()
337	18	{
338	3	return [
339		'id' => $this->identifier,
340	3	'items' => array_map(function (CartItem $item) {
341		return $item->toArray();
342		}, $this->contents)
343	15	];
344	6	}
345		}
346

jamesdb / cart

Push — master ( 53f387...6a6ffb )

Cart::addEventListener() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like