Cart::isEmpty() - Code Metrics - ksdev-pl/shopping-cart - Measure and Improve Code Quality continuously with Scrutinizer

Cart::isEmpty() A
last analyzed 2018-01-15 09:01 UTC

↳ Parent: Cart

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

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

<?php

namespace Ksdev\ShoppingCart;

use Countable;
use Iterator;

class Cart implements Iterator, Countable
{
    /**
     * Array stores the list of items in the cart
     *
     * @var array $items
     */
    protected $items = [];

    /**
     * For tracking iterations
     *
     * @var int $position
     */
    protected $position = 0;

    /**
     * For storing the Stock Keeping Units, as a convenience
     *
     * @var array $skus
     */
    protected $skus = [];

    /**
     * Currency instance
     *
     * @var Currency $currency
     */
    protected $currency;

    /**
     * Sets the currency for all the items in the cart
     *
     * @param Currency $currency
     */
    public function __construct(Currency $currency)
    {
        $this->currency = $currency;
    }

    /**
     * Returns a Boolean indicating if the cart is empty
     *
     * @return bool
     */
    public function isEmpty()
    {
        return empty($this->items);
    }

    /**
     * Gets an item with given SKU from the cart
     *
     * @param string $sku
     *
     * @return array
     */
    public function getItem($sku)
    {
        if (isset($this->items[$sku])) {
            $item = $this->items[$sku];
        } else {
            $item = [];
        }

        return $item;
    }

    /**
     * Adds a new item to the cart
     *
     * @param Item $item
     */
    public function addItem(Item $item)
    {
        $sku = $item->getSku();

        if (isset($this->items[$sku])) {
            $this->updateItem($item, $this->items[$sku]['qty'] + 1);
        } else {
            $this->items[$sku] = array('item' => $item, 'qty' => 1);
            $this->skus[] = $sku;
        }
    }

    /**
     * Changes an item already in the cart
     *
     * @param Item $item
     * @param integer $qty If the quantity is 0, then the item is removed from the cart, otherwise updates quantity
     */
    public function updateItem(Item $item, $qty)
    {
        $sku = $item->getSku();

        if ($qty === 0) {
            $this->deleteItem($item);
        } elseif (($qty > 0) && ($qty != $this->items[$sku]['qty'])) {
            $this->items[$sku]['qty'] = $qty;
        }

    }

    /**
     * Removes an item from the cart
     *
     * @param Item $item
     */
    public function deleteItem(Item $item)
    {
        $sku = $item->getSku();

        if (isset($this->items[$sku])) {
            unset($this->items[$sku]);

            $index = array_search($sku, $this->skus);
            unset($this->skus[$index]);

            // Recreate array to prevent holes:
            $this->skus = array_values($this->skus);
        }
    }

    /**
     * Get the total price of all the cart items
     *
     * @return string
     */
    public function total()
    {
        $sum = '0.00';
        foreach ($this->items as $item) {
            $price = bcmul($item['item']->getPrice(), (string)$item['qty'], 2);
            $sum = bcadd($sum, $price, 2);
        }
        return $sum;
    }

    /**
     * Get the cart items currency
     *
     * @return Currency
     */
    public function getCurrency()
    {
        return $this->currency;
    }

    /**
     * Count all items; required by Countable
     *
     * @return int
     */
    public function count()
    {
        $num = 0;
        foreach ($this->items as $item) {
            $num += $item['qty'];
        }

        return $num;
    }

    /**
     * Count unique items
     *
     * @return int
     */
    public function countUnique()
    {
        return count($this->items);
    }

    /**
     * Required by Iterator; returns the current value
     *
     * @return array
     */
    public function current()
    {
        $index = $this->skus[$this->position];

        return $this->items[$index];

    }

    /**
     * Required by Iterator; returns the current key
     *
     * @return int
     */
    public function key()
    {
        return $this->position;
    }

    /**
     * Required by Iterator; increments the position
     */
    public function next()
    {
        $this->position++;
    }

    /**
     * Required by Iterator; returns the position to the first spot
     */
    public function rewind()
    {
        $this->position = 0;
    }

    /**
     * Required by Iterator; returns a Boolean indiating if a value is indexed at this position
     *
     * @return bool
     */
    public function valid()
    {
        return (isset($this->skus[$this->position]));
    }
}


1			<?php
2
3			namespace Ksdev\ShoppingCart;
4
5			use Countable;
6			use Iterator;
7
8			class Cart implements Iterator, Countable
9			{
10			/**
11			* Array stores the list of items in the cart
12			*
13			* @var array $items
14			*/
15			protected $items = [];
16
17			/**
18			* For tracking iterations
19			*
20			* @var int $position
21			*/
22			protected $position = 0;
23
24			/**
25			* For storing the Stock Keeping Units, as a convenience
26			*
27			* @var array $skus
28			*/
29			protected $skus = [];
30
31			/**
32			* Currency instance
33			*
34			* @var Currency $currency
35			*/
36			protected $currency;
37
38			/**
39			* Sets the currency for all the items in the cart
40			*
41			* @param Currency $currency
42			*/
43			public function __construct(Currency $currency)
44			{
45			$this->currency = $currency;
46			}
47
48			/**
49			* Returns a Boolean indicating if the cart is empty
50			*
51			* @return bool
52			*/
53			public function isEmpty()
54			{
55			return empty($this->items);
56			}
57
58			/**
59			* Gets an item with given SKU from the cart
60			*
61			* @param string $sku
62			*
63			* @return array
64			*/
65			public function getItem($sku)
66			{
67			if (isset($this->items[$sku])) {
68			$item = $this->items[$sku];
69			} else {
70			$item = [];
71			}
72
73			return $item;
74			}
75
76			/**
77			* Adds a new item to the cart
78			*
79			* @param Item $item
80			*/
81			public function addItem(Item $item)
82			{
83			$sku = $item->getSku();
84
85			if (isset($this->items[$sku])) {
86			$this->updateItem($item, $this->items[$sku]['qty'] + 1);
87			} else {
88			$this->items[$sku] = array('item' => $item, 'qty' => 1);
89			$this->skus[] = $sku;
90			}
91			}
92
93			/**
94			* Changes an item already in the cart
95			*
96			* @param Item $item
97			* @param integer $qty If the quantity is 0, then the item is removed from the cart, otherwise updates quantity
98			*/
99			public function updateItem(Item $item, $qty)
100			{
101			$sku = $item->getSku();
102
103			if ($qty === 0) {
104			$this->deleteItem($item);
105			} elseif (($qty > 0) && ($qty != $this->items[$sku]['qty'])) {
106			$this->items[$sku]['qty'] = $qty;
107			}
108
109			}
110
111			/**
112			* Removes an item from the cart
113			*
114			* @param Item $item
115			*/
116			public function deleteItem(Item $item)
117			{
118			$sku = $item->getSku();
119
120			if (isset($this->items[$sku])) {
121			unset($this->items[$sku]);
122
123			$index = array_search($sku, $this->skus);
124			unset($this->skus[$index]);
125
126			// Recreate array to prevent holes:
127			$this->skus = array_values($this->skus);
128			}
129			}
130
131			/**
132			* Get the total price of all the cart items
133			*
134			* @return string
135			*/
136			public function total()
137			{
138			$sum = '0.00';
139			foreach ($this->items as $item) {
140			$price = bcmul($item['item']->getPrice(), (string)$item['qty'], 2);
141			$sum = bcadd($sum, $price, 2);
142			}
143			return $sum;
144			}
145
146			/**
147			* Get the cart items currency
148			*
149			* @return Currency
150			*/
151			public function getCurrency()
152			{
153			return $this->currency;
154			}
155
156			/**
157			* Count all items; required by Countable
158			*
159			* @return int
160			*/
161			public function count()
162			{
163			$num = 0;
164			foreach ($this->items as $item) {
165			$num += $item['qty'];
166			}
167
168			return $num;
169			}
170
171			/**
172			* Count unique items
173			*
174			* @return int
175			*/
176			public function countUnique()
177			{
178			return count($this->items);
179			}
180
181			/**
182			* Required by Iterator; returns the current value
183			*
184			* @return array
185			*/
186			public function current()
187			{
188			$index = $this->skus[$this->position];
189
190			return $this->items[$index];
191
192			}
193
194			/**
195			* Required by Iterator; returns the current key
196			*
197			* @return int
198			*/
199			public function key()
200			{
201			return $this->position;
202			}
203
204			/**
205			* Required by Iterator; increments the position
206			*/
207			public function next()
208			{
209			$this->position++;
210			}
211
212			/**
213			* Required by Iterator; returns the position to the first spot
214			*/
215			public function rewind()
216			{
217			$this->position = 0;
218			}
219
220			/**
221			* Required by Iterator; returns a Boolean indiating if a value is indexed at this position
222			*
223			* @return bool
224			*/
225			public function valid()
226			{
227			return (isset($this->skus[$this->position]));
228			}
229			}
230

ksdev-pl / shopping-cart

Cart::isEmpty() A last analyzed 2018-01-15 09:01 UTC

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Cart::isEmpty() A
last analyzed 2018-01-15 09:01 UTC