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DynamicCSSCache::update()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 5
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 1
eloc 3
nc 1
nop 2
dl 0
loc 5
rs 9.4285
c 0
b 0
f 0
1
<?php
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/**
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 * @package   WordPress Dynamic CSS
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 * @version   1.0.5
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 * @author    Askupa Software <[email protected]>
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 * @link      https://github.com/askupasoftware/wp-dynamic-css
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 * @copyright 2016 Askupa Software
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 */
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/**
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 * Dynamic CSS Cache Handler
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 */
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class DynamicCSSCache
0 ignored issues
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Coding Style Compatibility introduced by
PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions.

You can fix this by adding a namespace to your class:

namespace YourVendor;

class YourClass { }

When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.

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14
{
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    /**
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     * @var DynamicCSSCache The reference to *Singleton* instance of this class
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     */
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    private static $instance;
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    /**
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     * @var array The reference to the cached compiled CSS that is stored in the database 
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     */
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    private static $cache;
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    /**
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     * Returns the *Singleton* instance of this class.
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     *
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     * @return DynamicCSSCache The *Singleton* instance.
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     */
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    public static function get_instance()
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    {
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        if (null === static::$instance) 
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Bug introduced by
Since $instance is declared private, accessing it with static will lead to errors in possible sub-classes; consider using self, or increasing the visibility of $instance to at least protected.

Let’s assume you have a class which uses late-static binding:

class YourClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return static::$someVariable;
    }
}

The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the getSomeVariable() on that sub-class, you will receive a runtime error:

class YourSubClass extends YourClass { }

YourSubClass::getSomeVariable(); // Will cause an access error.

In the case above, it makes sense to update SomeClass to use self instead:

class SomeClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return self::$someVariable; // self works fine with private.
    }
}
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33
        {
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            static::$instance = new static();
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Bug introduced by
Since $instance is declared private, accessing it with static will lead to errors in possible sub-classes; consider using self, or increasing the visibility of $instance to at least protected.

Let’s assume you have a class which uses late-static binding:

class YourClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return static::$someVariable;
    }
}

The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the getSomeVariable() on that sub-class, you will receive a runtime error:

class YourSubClass extends YourClass { }

YourSubClass::getSomeVariable(); // Will cause an access error.

In the case above, it makes sense to update SomeClass to use self instead:

class SomeClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return self::$someVariable; // self works fine with private.
    }
}
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35
            self::load_cache();
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        }
37
        return static::$instance;
0 ignored issues
show
Bug introduced by
Since $instance is declared private, accessing it with static will lead to errors in possible sub-classes; consider using self, or increasing the visibility of $instance to at least protected.

Let’s assume you have a class which uses late-static binding:

class YourClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return static::$someVariable;
    }
}

The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the getSomeVariable() on that sub-class, you will receive a runtime error:

class YourSubClass extends YourClass { }

YourSubClass::getSomeVariable(); // Will cause an access error.

In the case above, it makes sense to update SomeClass to use self instead:

class SomeClass
{
    private static $someVariable;

    public static function getSomeVariable()
    {
        return self::$someVariable; // self works fine with private.
    }
}
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38
    }
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    /**
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     * Returns the compiled CSS for the given handle if it exists in the cache.
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     * Returns false otherwise.
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     * 
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     * @param string $handle The handle of the stylesheet
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     * @return boolean|string
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     */
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    public function get( $handle )
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    {
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        if( array_key_exists( $handle, self::$cache ) )
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        {
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            return self::$cache[$handle];
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        }
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        return false;
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    }
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    /**
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     * Update the compiled CSS for the given handle.
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     * 
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     * @param string $handle The handle of the stylesheet
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     * @param string $compiled_css
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     */
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    public function update( $handle, $compiled_css )
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    {
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        self::$cache[$handle] = $compiled_css;
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        $this->update_option();
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    }
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    /**
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     * Clear the compiled CSS from cache for the given handle.
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     * 
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     * @param string $handle The handle of the stylesheet
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     */
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    public function clear( $handle )
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    {
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        unset(self::$cache[$handle]);
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        $this->update_option();
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    }
78
    
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    /**
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     * Load the cache value from the database or create an empty array if the
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     * cache is empty.
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     */
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    private static function load_cache()
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    {
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        self::$cache = get_option('wp-dynamic-css-cache');
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        if( false === self::$cache )
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        {
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            self::$cache = array();
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        }
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    }
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    /**
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     * Update the database option with the local cache value.
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     */
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    private function update_option()
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    {
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        update_option('wp-dynamic-css-cache', self::$cache);
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    }
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}