About Laravel's caching method

This article mainly introduces relevant information about sharing a useful caching method in Laravel. Friends who need it can refer to it

The caching tool provided by Laravel is very easy to use. The manual introduces some basic Usage, such as get, put, forget, forever, etc. At first, I used it as follows:

if (!$article = Cache::get('article_1')) {
    $article = Article::find(1);
    Cache::forever('article_1',$article);
}

This is the most basic usage. It automatically determines whether the cache exists. If it does not exist, it will be fetched from the database. Write cache.

Later I discovered that the model also comes with the remember and rememberForever methods. For example, it can be like this:

$article = Article::rememberForever('article_1')->where('id','=',1);

This has limitations and cannot completely cache the data during complex queries. For example, using with() to pre-set The related data cannot be cached while the related data is being loaded.

Then I discovered that Cache can also customize macro methods like Response, so I tried the following:

//注册缓存存取宏
Cache::macro('want',function($key,$minutes=0,$callback){
    if (!$data = Cache::get($key)) {
        $data = call_user_func($callback);
        if ($minutes == 0) {
            Cache::forever($key,$data);
        } else {
            Cache::put($key,$data,$minutes);
        }
    }
    return $data;
});

This method can be placed in bootstrap/start.php or in filter. In App::before(), it’s convenient for your own project. Let’s see how to use it:

$id = Input::get('id');
$article = Cache::want('article_'.$id,0,function() use ($id){
    return Article::with('tags')->findOrFail($id,['id','cid','title','content_html as content','created_at','updated_at']);
});

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