laravel mongodb where clause on nested document
<p>i have a collection "website" which data structure is like</p>

<pre><code>[_id] =&gt; MongoId Object (
    [$id] =&gt; 57beda7f0640fd14ca5cc307
)
[website] =&gt; MongoId Object (
    [$id] =&gt; 57beda3d279871c80e8b4567
)
[url] =&gt; https://acb.com
[meta_tags] =&gt; Array (
    [description] =&gt; 
    [title] =&gt; Login 
    [title_length] =&gt; 18    
) 
</code></pre>

<p>ans same i have 10 rows of data.</p>

<p>now i am using laravel eloquent and i need to fetch all data which website is 57beda3d279871c80e8b4567 and title is empty or null.</p>

<p>who should i update my query for title attribute</p>

<pre><code> $this-&gt;website-&gt;where('website', $website)-&gt;get();
</code></pre>

<p>Thanks.</p>