Rahul Prajapati

<p>This plugin is an add-on for Advanced Custom Fields. It allows you to use “post_mime_type” filter in “relationship” field.</p>
<h4>Rate this plugin</h4>
<p>If this plugin helps you, please give it a good rating. If you have any problems, please ask me. I’m happy to help.</p>
<h3>How To Use</h3>
<ol>
<li>
<p>After you Install & Activate plugin you will see “MIME Type” filter option in acf relationship field.</p>
</li>
<li>
<p>Here you will see all mime types of attachment post type.</p>
</li>
<li>
<p>You can select multiple mime types to filter post list in relation ship metabox.</p>
</li>
</ol>


ACF – Relationship MIME type filter

This plugin is an add-on for Advanced Custom Fields. It allows you to use "post_mime_type" filter in "relationship" field.

VarDump s.r.l.

<p>Get the PRO version: <a href="https://www.advancedcustomsearch.com/" rel="nofollow ugc">https://www.advancedcustomsearch.com/</a></p>
<p>Advanced Post Search is a WordPress plugin for anyone who needs an advanced search for posts (or custom posts) in WordPress admin.<br />
Easily find posts by performing complex queries directly from the posts list and using specific filters for each field. It works with any post type and custom post type.</p>
<p>Advanced Post Search lets you search posts by any post attribute; search by:</p>
<ul>
<li>Post Title</li>
<li>Post Content</li>
<li>Post Publish (date or date interval)</li>
<li>Post Last Modified (date or date interval)</li>
<li>Post Status</li>
<li>Post Password</li>
<li>Post Author</li>
<li>Post Excerpt</li>
<li>Post Slug</li>
</ul>
<p>Specify which comparison operator you want to use; each field has its own comparison operators, according to the field type: for example, in <code>text</code> fields you can perform a <code>strict</code> or a <code>like</code> search.</p>
<p>You can manage search preferences from <code>Advanced Post Search » Views</code> in order to show/hide any search field for each post type.</p>
<h4>Advanced Post Search PRO</h4>
<p>Unlock extra features by upgrading Advanced Post Search to PRO version:<br />
<a href="https://www.advancedcustomsearch.com/" rel="nofollow ugc">https://www.advancedcustomsearch.com/</a></p>
<ul>
<li>Advanced Custom Fields support</li>
<li>Search posts by any of ACF custom fields (text, images, etc.)</li>
</ul>
<h4>Tested on</h4>
<ul>
<li>Microsoft Windows – Google Chrome</li>
<li>Microsoft Windows – IE9+ / Edge</li>
<li>Mac OS X – Firefox</li>
<li>Mac OS X – Google Chrome</li>
</ul>


Advanced Post Search

Add a search form based on Wordpress fields in posts list

ACF – Relationship MIME type filter vs Advanced Post Search