CacheableWidgetBehavior::afterRun() - Code Metrics - Inspection of "release version 2.0.14" - yiisoft/yii2 - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 089685...22832b )

by Dmitry

created 2018-02-18 22:27 UTC

CacheableWidgetBehavior::afterRun() A

↳ Parent: Project

Complexity

Conditions	1
Paths	1

Size

Total Lines	7
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	7
ccs	5
cts	5
cp	1
rs	9.4285
cc	1
eloc	4
nc	1
nop	1
crap	1

<?php
/**
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace yii\behaviors;

use yii\base\Behavior;
use yii\base\InvalidConfigException;
use yii\base\Widget;
use yii\base\WidgetEvent;
use yii\caching\CacheInterface;
use yii\caching\Dependency;
use yii\di\Instance;

/**
 * Cacheable widget behavior automatically caches widget contents according to duration and dependencies specified.
 *
 * The behavior may be used without any configuration if an application has `cache` component configured.
 * By default the widget will be cached for one minute.
 *
 * The following example will cache the posts widget for an indefinite duration until any post is modified.
 *
 * ```php
 * use yii\behaviors\CacheableWidgetBehavior;
 *
 * public function behaviors()
 * {
 *     return [
 *         [
 *             'class' => CacheableWidgetBehavior::className(),
 *             'cacheDuration' => 0,
 *             'cacheDependency' => [
 *                 'class' => 'yii\caching\DbDependency',
 *                 'sql' => 'SELECT MAX(updated_at) FROM posts',
 *             ],
 *         ],
 *     ];
 * }
 * ```
 *
class CacheableWidgetBehavior extends Behavior
{
    /**
     * @var CacheInterface|string|array a cache object or a cache component ID
     * or a configuration array for creating a cache object.
     * Defaults to the `cache` application component.
     */
    public $cache = 'cache';

    /**
     * @var int cache duration in seconds.
     * Set to `0` to indicate that the cached data will never expire.
     * Defaults to 60 seconds or 1 minute.
     */
    public $cacheDuration = 60;
    /**
     * @var Dependency|array|null a cache dependency or a configuration array
     * for creating a cache dependency or `null` meaning no cache dependency.
     *
     * For example,
     *
     * ```php
     * [
     *     'class' => 'yii\caching\DbDependency',
     *     'sql' => 'SELECT MAX(updated_at) FROM posts',
     * ]
     * ```
     *
     * would make the widget cache depend on the last modified time of all posts.
     * If any post has its modification time changed, the cached content would be invalidated.
     */
    public $cacheDependency;
    /**
     * @var string[]|string an array of strings or a single string which would cause
     * the variation of the content being cached (e.g. an application language, a GET parameter).
     *
     * The following variation setting will cause the content to be cached in different versions
     * according to the current application language:
     *
     * ```php
     * [
     *     Yii::$app->language,
     * ]
     * ```
     */
    public $cacheKeyVariations = [];
    /**
     * @var bool whether to enable caching or not. Allows to turn the widget caching
     * on and off according to specific conditions.
     * The following configuration will disable caching when a special GET parameter is passed:
     *
     * ```php
     * empty(Yii::$app->request->get('disable-caching'))
     * ```
     */
    public $cacheEnabled = true;


    /**
     * {@inheritdoc}
     */
    public function attach($owner)
    {
        parent::attach($owner);

        $this->initializeEventHandlers();
    }

    /**
     * Begins fragment caching. Prevents owner widget from execution
     * if its contents can be retrieved from the cache.
     *
     * @param WidgetEvent $event `Widget::EVENT_BEFORE_RUN` event.
     */
    public function beforeRun($event)
    {
        $cacheKey = $this->getCacheKey();
        $fragmentCacheConfiguration = $this->getFragmentCacheConfiguration();

        if (!$this->owner->view->beginCache($cacheKey, $fragmentCacheConfiguration)) {
            $event->isValid = false;
        }
    }

    /**
     * Outputs widget contents and ends fragment caching.
     *
     * @param WidgetEvent $event `Widget::EVENT_AFTER_RUN` event.
     */
    public function afterRun($event)
    {
        echo $event->result;
        $event->result = null;

        $this->owner->view->endCache();
    }

    /**
     * Initializes widget event handlers.
     */
    private function initializeEventHandlers()
    {
        $this->owner->on(Widget::EVENT_BEFORE_RUN, [$this, 'beforeRun']);
        $this->owner->on(Widget::EVENT_AFTER_RUN, [$this, 'afterRun']);
    }

    /**
     * Returns the cache instance.
     *
     * @return CacheInterface cache instance.
     * @throws InvalidConfigException if cache instance instantiation fails.
     */
    private function getCacheInstance()
    {
        $cacheInterface = 'yii\caching\CacheInterface';
        return Instance::ensure($this->cache, $cacheInterface);
    }

    /**
     * Returns the widget cache key.
     *
     * @return string[] an array of strings representing the cache key.
     */
    private function getCacheKey()
    {
        // `$cacheKeyVariations` may be a `string` and needs to be cast to an `array`.
        $cacheKey = array_merge(
            (array)get_class($this->owner),
            (array)$this->cacheKeyVariations
        );

        return $cacheKey;
    }

    /**
     * Returns a fragment cache widget configuration array.
     *
     * @return array a fragment cache widget configuration array.
     */
    private function getFragmentCacheConfiguration()
    {
        $cache = $this->getCacheInstance();
        $fragmentCacheConfiguration = [
            'cache' => $cache,
            'duration' => $this->cacheDuration,
            'dependency' => $this->cacheDependency,
            'enabled' => $this->cacheEnabled,
        ];

        return $fragmentCacheConfiguration;
    }
}


1			<?php
2			/**
3			* @link http://www.yiiframework.com/
4			* @copyright Copyright (c) 2008 Yii Software LLC
5			* @license http://www.yiiframework.com/license/
6			*/
7
8			namespace yii\behaviors;
9
10			use yii\base\Behavior;
11			use yii\base\InvalidConfigException;
12			use yii\base\Widget;
13			use yii\base\WidgetEvent;
14			use yii\caching\CacheInterface;
15			use yii\caching\Dependency;
16			use yii\di\Instance;
17
18			/**
19			* Cacheable widget behavior automatically caches widget contents according to duration and dependencies specified.
20			*
21			* The behavior may be used without any configuration if an application has `cache` component configured.
22			* By default the widget will be cached for one minute.
23			*
24			* The following example will cache the posts widget for an indefinite duration until any post is modified.
25			*
26			* ```php
27			* use yii\behaviors\CacheableWidgetBehavior;
28			*
29			* public function behaviors()
30			* {
31			* return [
32			* [
33			* 'class' => CacheableWidgetBehavior::className(),
34			* 'cacheDuration' => 0,
35			* 'cacheDependency' => [
36			* 'class' => 'yii\caching\DbDependency',
37			* 'sql' => 'SELECT MAX(updated_at) FROM posts',
38			* ],
39			* ],
40			* ];
41			* }
42			* ```
43			*
44			class CacheableWidgetBehavior extends Behavior
45			{
46			/**
47			* @var CacheInterface\|string\|array a cache object or a cache component ID
48			* or a configuration array for creating a cache object.
49			* Defaults to the `cache` application component.
50			*/
51			public $cache = 'cache';
			0 ignored issues – show Bug introduced 2018-02-18 22:51 UTC by Report Bug Copy Issue Report This code did not parse for me. Apparently, there is an error somewhere around this line: Syntax error, unexpected T_PUBLIC Loading history...
52			/**
53			* @var int cache duration in seconds.
54			* Set to `0` to indicate that the cached data will never expire.
55			* Defaults to 60 seconds or 1 minute.
56			*/
57			public $cacheDuration = 60;
58			/**
59			* @var Dependency\|array\|null a cache dependency or a configuration array
60			* for creating a cache dependency or `null` meaning no cache dependency.
61			*
62			* For example,
63			*
64			* ```php
65			* [
66			* 'class' => 'yii\caching\DbDependency',
67			* 'sql' => 'SELECT MAX(updated_at) FROM posts',
68			* ]
69			* ```
70			*
71			* would make the widget cache depend on the last modified time of all posts.
72			* If any post has its modification time changed, the cached content would be invalidated.
73			*/
74			public $cacheDependency;
75			/**
76			* @var string[]\|string an array of strings or a single string which would cause
77			* the variation of the content being cached (e.g. an application language, a GET parameter).
78			*
79			* The following variation setting will cause the content to be cached in different versions
80			* according to the current application language:
81			*
82			* ```php
83			* [
84			* Yii::$app->language,
85			* ]
86			* ```
87			*/
88			public $cacheKeyVariations = [];
89			/**
90			* @var bool whether to enable caching or not. Allows to turn the widget caching
91			* on and off according to specific conditions.
92			* The following configuration will disable caching when a special GET parameter is passed:
93			*
94			* ```php
95			* empty(Yii::$app->request->get('disable-caching'))
96			* ```
97			*/
98			public $cacheEnabled = true;
99
100
101			/**
102			* {@inheritdoc}
103			*/
104			public function attach($owner)
105			{
106			parent::attach($owner);
107
108			$this->initializeEventHandlers();
109			}
110
111			/**
112			* Begins fragment caching. Prevents owner widget from execution
113			* if its contents can be retrieved from the cache.
114			*
115			* @param WidgetEvent $event `Widget::EVENT_BEFORE_RUN` event.
116			*/
117			public function beforeRun($event)
118			{
119			$cacheKey = $this->getCacheKey();
120			$fragmentCacheConfiguration = $this->getFragmentCacheConfiguration();
121
122			if (!$this->owner->view->beginCache($cacheKey, $fragmentCacheConfiguration)) {
123			$event->isValid = false;
124			}
125			}
126
127			/**
128			* Outputs widget contents and ends fragment caching.
129			*
130			* @param WidgetEvent $event `Widget::EVENT_AFTER_RUN` event.
131			*/
132			public function afterRun($event)
133			{
134			echo $event->result;
135			$event->result = null;
136
137			$this->owner->view->endCache();
138			}
139
140			/**
141			* Initializes widget event handlers.
142			*/
143			private function initializeEventHandlers()
144			{
145			$this->owner->on(Widget::EVENT_BEFORE_RUN, [$this, 'beforeRun']);
146			$this->owner->on(Widget::EVENT_AFTER_RUN, [$this, 'afterRun']);
147			}
148
149			/**
150			* Returns the cache instance.
151			*
152			* @return CacheInterface cache instance.
153			* @throws InvalidConfigException if cache instance instantiation fails.
154			*/
155			private function getCacheInstance()
156			{
157			$cacheInterface = 'yii\caching\CacheInterface';
158			return Instance::ensure($this->cache, $cacheInterface);
159			}
160
161			/**
162			* Returns the widget cache key.
163			*
164			* @return string[] an array of strings representing the cache key.
165			*/
166			private function getCacheKey()
167			{
168			// `$cacheKeyVariations` may be a `string` and needs to be cast to an `array`.
169			$cacheKey = array_merge(
170			(array)get_class($this->owner),
171			(array)$this->cacheKeyVariations
172			);
173
174			return $cacheKey;
175			}
176
177			/**
178			* Returns a fragment cache widget configuration array.
179			*
180			* @return array a fragment cache widget configuration array.
181			*/
182			private function getFragmentCacheConfiguration()
183			{
184			$cache = $this->getCacheInstance();
185			$fragmentCacheConfiguration = [
186			'cache' => $cache,
187			'duration' => $this->cacheDuration,
188			'dependency' => $this->cacheDependency,
189			'enabled' => $this->cacheEnabled,
190			];
191
192			return $fragmentCacheConfiguration;
193			}
194			}
195

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CacheableWidgetBehavior::afterRun() A

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