Jon Christopher

Extensive usage instructions are <a href="https://github.com/jchristopher/attachments/#attachments" rel="nofollow ugc">available on GitHub</a>
Attachments allows you to simply append any number of items from your WordPress Media Library to Posts, Pages, and Custom Post Types.
<h4>Associate Media items with posts</h4>
The idea behind Attachments is to give developers the ability to directly associate Media items with any post. This is accomplished by adding a meta box to post edit screens as determined by the developer. Once Media items have been associated with a post, you’re able to retrieve those Attachments and include them directly within your template files using any specific markup you wish.
<h4>Integrate Attachments within your theme with fine grained control</h4>
Attachments does not automatically integrate itself with your theme. Since the idea behind Attachments is to allow integration of Media within posts using developer-crafted, unique markup, it’s up to you to integrate with your theme. The most basic integration includes editing the <a href="https://codex.wordpress.org/Template_Hierarchy" rel="nofollow ugc">appropriate template file</a> and adding your call(s) to Attachments. For example, if you have set up Attachments to be used with your Posts entries, edit <code>single.php</code> to include the following within The Loop:
<pre><code><?php $attachments = new Attachments( 'attachments' ); /* pass the instance name */ ?>
<?php if( $attachments->exist() ) : ?>
 <h3>Attachments</h3>
 Total Attachments: <?php echo $attachments->total(); ?>
 <ul>
 <?php while( $attachments->get() ) : ?>
 <li>
 ID: <?php echo $attachments->id(); ?> 
 Type: <?php echo $attachments->type(); ?> 
 Subtype: <?php echo $attachments->subtype(); ?> 
 URL: <?php echo $attachments->url(); ?> 
 Image: <?php echo $attachments->image( 'thumbnail' ); ?> 
 Source: <?php echo $attachments->src( 'full' ); ?> 
 Size: <?php echo $attachments->filesize(); ?> 
 Title Field: <?php echo $attachments->field( 'title' ); ?> 
 Caption Field: <?php echo $attachments->field( 'caption' ); ?>
 </li>
 <?php endwhile; ?>
 </ul>
<?php endif; ?>
</code></pre>
That snippet will request all of the existing Attachments defined for the current Post within The Loop, and retrieve each itemized property for that Attachment. Using the provided details you’re able to integrate the attached Media items in any way you please.
There is a lot more information on <a href="https://github.com/jchristopher/attachments" rel="nofollow ugc">Attachments’ GitHub page</a>. Please contribute!
<h3>Roadmap</h3>
Please see <a href="https://github.com/jchristopher/attachments/blob/master/docs/roadmap.md" rel="nofollow ugc">Attachments on GitHub</a>
<h3>Usage</h3>
Extensive usage instructions are <a href="https://github.com/jchristopher/attachments/blob/master/docs/usage.md" rel="nofollow ugc">available on GitHub</a>

Attachments

This plugin provides functionality that should come with WP core.



The missing plugin

Great plugin

Excellent Plugin

Attachments allows you to simply append any number of items from your WordPress Media Library to Posts, Pages, and Custom Post Types

Aesqe

“File Gallery” extends WordPress’ media (attachments) capabilities 
by adding a new gallery shortcode handler with templating support, 
a new interface for attachment handling when editing posts, and much 
more… Here’s the full list of features:
Features:
<ol>
<li>multiple galleries per post with custom attachment order</li>
<li>a flexible templating system (PHP, CSS, JS) – choose a different 
template for each gallery, even within the same post (4 templates 
included with plugin)</li>
<li>simple, easy to use UI with drag and drop sorting shows attachment 
thumbnails beneath text editor: everything attachments-related is on 
the same screen you’re editing your post on</li>
<li>fully integrated with the visual editor (tinyMCE) – click on the 
[gallery] placeholder image and change any option in the File 
Gallery metabox – changes will be applied instantly</li>
<li>settings page extends the default media settings page</li>
<li>attach copies of items from media library to current post (copies 
data only, not the file)</li>
<li>copy all attachments from another post</li>
<li>unattach (detach) items from current post</li>
<li>media tags = tag your attachments and then use those tags to choose 
which attachments you want to display in your gallery or to filter 
your media library items.</li>
<li>custom fields for attachments</li>
<li>gallery pagination</li>
<li>different background colors for items in media library depending 
on their status = completely unattached (white), attached to other 
posts (red), or attached to current post (yellow)</li>
<li>compatible with “WordPress Mobile Edition”, “Media Tags” and 
“WPML Multilingual CMS” plugins </li>
<li>basic caching of gallery output and frequent queries (transients)</li>
<li>please see the help file for complete list of features</li>
</ol>
<h3>More info</h3>
This plugin uses icons from the awesome famfamfam Silk icon set by 
Mark James. 
“Silk” can be found at: http://famfamfam.com/lab/icons/silk/
Plugin settings are integrated into media settings page.
Help file is included, you’ll find it in the “help” subfolder.
<h3>Translation Credits</h3>
Hebrew: 
* Maor Barazany – http://www.maorb.info/
French: 
* Jean-Michel Meyer – http://www.li-an.fr/wpplugins/
Italian: 
* Pietro Palli – http://ppal.li/ 
* Francesco Canovi – http://www.blackstudio.it/
Arabic: 
* Wassem Mansour – http://www.sanapix.com
Lithuanian: 
* Vincent G – http://www.Host1Free.com
Polish: 
* Michał Budzik – http://www.mindborn.pl/en/
<h3>Contributors</h3>
Greg Haddow (https://github.com/shaddowgh/) 
Josh Eaton (https://github.com/jjeaton/) 
Andrea Baccega (https://github.com/vekexasia)
<h3>Thanks goes out to…</h3>
<ul>
<li>All the contributors, translators, and people leaving comments, 
bug reports and suggestions on the official page and in the 
WordPress.org forums</li>
</ul>
<h3>Plans for the next versions</h3>
sooner:
<ul>
<li>manage media tags for all selected attachments</li>
<li>audio and video preview on editing screens</li>
</ul>
later:
<ul>
<li>phpdoc all the functions</li>
<li>more detailed description for file_gallery_shortcode function 
(what can be used in ‘orderby’, what do ‘columns’ mean) for beginner programmers</li>
<li>yoxview lightbox http://www.yellow-llama.com/yoxview-gallery-wordpress-plugin/</li>
</ul>
maybe:
<ul>
<li>show attachments’ Custom Fields in the main page of Media Library (custom column)</li>
<li>media library sort by file size or picture dimensions</li>
</ul>
probably not, but who knows:
<ul>
<li>watermarking – probably in another plugin…</li>
<li>when detaching / deleting attachments, just remove them from DOM 
without refreshing the entire file gallery box, but take care of 
originals and copies</li>
</ul>
And thank you for reading this 🙂
aesqe

File Gallery

File Gallery extends WordPress media (attachments) capabilities 
by adding a new gallery shortcode handler with templating support 
(and much more).

Attachments vs File Gallery