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POPHP traits - change value of static property in inherited class
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  1. POPHP traits - change value of static property in inherited class
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    copied!<p>So, this is my trait:</p> <pre><code>trait Cacheable { protected static $isCacheEnabled = false; protected static $cacheExpirationTime = null; public static function isCacheEnabled() { return static::$isCacheEnabled &amp;&amp; Cache::isEnabled(); } public static function getCacheExpirationTime() { return static::$cacheExpirationTime; } } </code></pre> <p>This is the base class:</p> <pre><code>abstract class BaseClass extends SomeOtherBaseClass { use Cacheable; ... } </code></pre> <p>These are my 2 final classes:</p> <pre><code>class Class1 extends BaseClass { ... } class Class2 extends BaseClass { protected static $isCacheEnabled = true; protected static $cacheExpirationTime = 3600; ... } </code></pre> <p>Here is the part of the code which executes these classes:</p> <pre><code>function baseClassRunner($baseClassName) { ... $output = null; if ($baseClassName::isCacheEnabled()) { $output = Cache::getInstance()-&gt;get('the_key'); } if ($output === null) { $baseClass = new $baseClassName(); $output = $baseClass-&gt;getOutput(); if ($baseClassName::isCacheEnabled()) { Cache::getInstance()-&gt;set('the_key', $output); } } ... } </code></pre> <p>This code doesn't work because PHP complains about defining same properties in Class2 as in Cacheable. I can't set them in their constructors because I want to read them even before running the constructor. I'm open for ideas, any help would be appreciated. :)</p> <p>EDIT:</p> <p>Well, I use this Cacheable trait on several places so i kind of got mixed up. :) This works fine like this. But I have another class which directly uses the Cacheable trait and when I try to do this on that class, I get the metioned error. So... Just assume that the BaseClass isn't abstract and I'm trying to set these cache properties on it. The question remains the same.</p>
 

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