WidgetCache::fetch() - Code Metrics - Inspection of "Feature/improve cache widgets" - Victoire/victoire - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#355)

by Paul

created 2016-03-01 16:29 UTC

WidgetCache::fetch() A

↳ Parent: WidgetCache

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	1

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

<?php

namespace Victoire\Bundle\WidgetBundle\Cache;

use Predis\Client;
use Symfony\Component\Security\Core\Authorization\AuthorizationChecker;
use Symfony\Component\Security\Core\SecurityContext;
use Victoire\Bundle\WidgetBundle\Entity\Widget;
use Victoire\Bundle\WidgetBundle\Entity\WidgetSlotInterface;

/**
 * This class handle the saving of Widgets.
 * Widgets are stored for a week, but are invalidated as soon as
 * the Widget's or BusinessEntity's updatedAt field is changed.
 */
class WidgetCache
{
    /**
     * @var Client
     */
    private $redis;
    /**
     * @var AuthorizationChecker
     */
    private $authorizationChecker;

    public function __construct(Client $redis, AuthorizationChecker $authorizationChecker)
    {
        $this->redis = $redis;
        $this->authorizationChecker = $authorizationChecker;
    }

    /**
     * @param Widget $widget
     *
     * @return string
     */
    public function fetch(Widget $widget)
    {
        return $this->redis->get($this->getHash($widget));
    }

    /**
     * @param Widget $widget
     * @param        $content
     */
    public function save(Widget $widget, $content)
    {
        $hash = $this->getHash($widget);
        if ($hash) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
            $this->redis->set($hash, $content);
            $this->redis->expire($hash, 7 * 24 * 60 * 1000); // cache for a week
        }
    }

    /**
     * @param Widget $widget
     *
     * @return string
     */
    protected function getHash(Widget $widget)
    {
        $hash = null;
        if (!$widget instanceof WidgetSlotInterface) {
            if ($widget->getMode() == Widget::MODE_BUSINESS_ENTITY
                && ($entity = $widget->getEntity())
                && method_exists($widget->getEntity(), 'getUpdatedAt')) {
                $hash = $this->generateBusinessEntityHash($widget);
            } elseif ($widget->getMode() == Widget::MODE_STATIC) {
                $hash = $this->generateHash($widget);
            }
        }

        return $hash;
    }

    protected function generateBusinessEntityHash(Widget $widget)
    {
        return sprintf('%s-%s-%s--%s-%s-%s',
            $widget->getId(),
            $widget->getUpdatedAt()->getTimestamp(),
            $widget->getCurrentView()->getReference()->getId(),
            $widget->getEntity()->getId(),

            $widget->getEntity()->getUpdatedAt()->getTimestamp(),

            (string) $this->authorizationChecker->isGranted('ROLE_VICTOIRE')
        );
    }

    private function generateHash($widget)
    {
        return sprintf('%s-%s-%s-%s',
            $widget->getId(),
            $widget->getUpdatedAt()->getTimestamp(),
            $widget->getCurrentView()->getReference()->getId(),
            (string) $this->authorizationChecker->isGranted('ROLE_VICTOIRE')
        );
    }


}


1			<?php
2
3			namespace Victoire\Bundle\WidgetBundle\Cache;
4
5			use Predis\Client;
6			use Symfony\Component\Security\Core\Authorization\AuthorizationChecker;
7			use Symfony\Component\Security\Core\SecurityContext;
8			use Victoire\Bundle\WidgetBundle\Entity\Widget;
9			use Victoire\Bundle\WidgetBundle\Entity\WidgetSlotInterface;
10
11			/**
12			* This class handle the saving of Widgets.
13			* Widgets are stored for a week, but are invalidated as soon as
14			* the Widget's or BusinessEntity's updatedAt field is changed.
15			*/
16			class WidgetCache
17			{
18			/**
19			* @var Client
20			*/
21			private $redis;
22			/**
23			* @var AuthorizationChecker
24			*/
25			private $authorizationChecker;
26
27			public function __construct(Client $redis, AuthorizationChecker $authorizationChecker)
28			{
29			$this->redis = $redis;
30			$this->authorizationChecker = $authorizationChecker;
31			}
32
33			/**
34			* @param Widget $widget
35			*
36			* @return string
37			*/
38			public function fetch(Widget $widget)
39			{
40			return $this->redis->get($this->getHash($widget));
41			}
42
43			/**
44			* @param Widget $widget
45			* @param $content
46			*/
47			public function save(Widget $widget, $content)
48			{
49			$hash = $this->getHash($widget);
50			if ($hash) {
			0 ignored issues – show Bug Best Practice introduced 2016-02-29 22:25 UTC by Report Bug Copy Issue Report The expression `$hash` of type `string\|null` is loosely compared to `true`; this is ambiguous if the string can be empty. You might want to explicitly use `!== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
51			$this->redis->set($hash, $content);
52			$this->redis->expire($hash, 7 * 24 * 60 * 1000); // cache for a week
53			}
54			}
55
56			/**
57			* @param Widget $widget
58			*
59			* @return string
60			*/
61			protected function getHash(Widget $widget)
62			{
63			$hash = null;
64			if (!$widget instanceof WidgetSlotInterface) {
65			if ($widget->getMode() == Widget::MODE_BUSINESS_ENTITY
66			&& ($entity = $widget->getEntity())
67			&& method_exists($widget->getEntity(), 'getUpdatedAt')) {
68			$hash = $this->generateBusinessEntityHash($widget);
69			} elseif ($widget->getMode() == Widget::MODE_STATIC) {
70			$hash = $this->generateHash($widget);
71			}
72			}
73
74			return $hash;
75			}
76
77			protected function generateBusinessEntityHash(Widget $widget)
78			{
79			return sprintf('%s-%s-%s--%s-%s-%s',
80			$widget->getId(),
81			$widget->getUpdatedAt()->getTimestamp(),
82			$widget->getCurrentView()->getReference()->getId(),
83			$widget->getEntity()->getId(),
			0 ignored issues – show Bug introduced 2016-03-01 15:58 UTC by Report Bug Copy Issue Report The method `getId` cannot be called on `$widget->getEntity()` (of type `integer\|double`). Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects. Loading history...
84			$widget->getEntity()->getUpdatedAt()->getTimestamp(),
			0 ignored issues – show Bug introduced 2016-03-01 15:58 UTC by Report Bug Copy Issue Report The method `getUpdatedAt` cannot be called on `$widget->getEntity()` (of type `integer\|double`). Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects. Loading history...
85			(string) $this->authorizationChecker->isGranted('ROLE_VICTOIRE')
86			);
87			}
88
89			private function generateHash($widget)
90			{
91			return sprintf('%s-%s-%s-%s',
92			$widget->getId(),
93			$widget->getUpdatedAt()->getTimestamp(),
94			$widget->getCurrentView()->getReference()->getId(),
95			(string) $this->authorizationChecker->isGranted('ROLE_VICTOIRE')
96			);
97			}
98
99
100			}
101

Victoire / victoire

Pull Request — master (#355)

WidgetCache::fetch() A

Complexity

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Duplication

Importance

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