<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=0.86, maximum-scale=5.0, minimum-scale=0.86"> <link rel="shortcut icon" href="/favicon.ico"> <link rel="stylesheet" href="https://www.gnusocial.rocks//assets/css/reset.css"> <link rel="stylesheet" href="https://www.gnusocial.rocks//assets/css/blog.css"> <link rel='stylesheet' type='text/css' href="https://www.gnusocial.rocks//assets/fonts/opensans/opensans.css"><title>Updates: Improve the Attachments system - GNU social V3</title> </head><body> <header> <div class="home-menu menu menu-horizontal menu-fixed"> <a class="menu-heading" href="https://gnusocial.rocks/"> <img src="../assets/img/gnu-social-logo-invert.svg" alt="GNU social"> <b>gnu</b>social </a> </div> <div class="sidebar"> <ul class="menu-list"> <li class="menu-item menu-selected"><a href="index.html" class="menu-link">Blog Index</a></li> <li class="menu-item"><a href="https://code.gnusocial.rocks/" class="menu-link">Repository</a></li> <li class="menu-item"><a href="https://coverage.gnusocial.rocks/" class="menu-link">Code Coverage</a></li> <li class="menu-item"><a href="https://docs.gnusocial.rocks/" class="menu-link">Documentation</a></li> <li class="menu-item"><a href="https://agile.gnusocial.rocks/" class="menu-link">Wiki</a></li> <li class="menu-item"><a href="https://kanban.undefinedhackers.net/?controller=BoardViewController&action=readonly&token=d2293e55cabae7cceff9fb496c651328195357d392b9e61a9f229ed6d463" class="menu-link">Roadmap</a></li> </ul> </div> </header> <div class="content-wrapper"> <div class="content"> </div></div></div> <div id="template-wrapper"><div class="template-unit"> <!-- entry begin --> <h3><a class="ablack" href="updates-improve-the-attachments-system.html"> Updates: Improve the Attachments system </a></h3> <!-- bashblog_timestamp: #202108051337.42# --> <div class="subtitle">August 05, 2021 — GNU social development team </div> <!-- text begin --> <p>With the milestone <a href="https://www.gnusocial.rocks/v3/milestone-port-media-handling-from-v2.html">Port Media system from v2</a> we had ported the existing attachment system. The fact is that this system wasn't good enough.</p> <p>It's always important to start with the original code as that allows us to review past decisions and understand all the corner cases previously considered.</p> <p>Sadly, what motivated us to re-design the attachment system were the non-considered corner cases. In particular:</p> <ul> <li>Remove <code>title</code> from attachment, as it's part of the relation between attachment and note.</li> <li>Remove <code>actor</code> from attachment, many actors may publish the same attachment.</li> <li>Remove <code>is_local</code> from attachment, as it's part of the relation between attachment and note.</li> <li>Remove <code>remote_url</code> from attachment, different urls can return the same attachment.</li> <li>Attachment now has a reference counter </li> <li>Add entity GSActorToAttachment</li> <li>Add entity GSActorToRemoteURL</li> <li>Add entity RemoteURL</li> <li>Add entity RemoteURLToNote</li> <li>Add entity RemoteURLToAttachment</li> <li>AttachmentToNote now has a title attribute</li> </ul> <p>Key commits:</p> <ul> <li><a href="https://code.undefinedhackers.net/GNUsocial/gnu-social/commit/32ad5dbd74ebb369c4b3ed688e1fb78464fabe49">32ad5dbd74 - [ENTITY] Split Attachment in various new entities</a></li> <li><a href="https://code.undefinedhackers.net/GNUsocial/gnu-social/commit/c381e58d3307e7dd07abeb9cf5b3998e34f5bd48">c381e58d33 - [ENTITY] Refactor RemoteURL entities to Link</a></li> </ul> <p>The structural changes and how it compares to v2 is detailed in our <a href="http://agile.gnusocial.rocks/doku.php?id=attachment">wiki</a>.</p> <p>Some relevant observations:</p> <ul> <li><code>Link</code> is now part of GNU social Data Representation terms. It represents any remote URL being shared in a note.</li> <li>There's only one fixed directory for GSFiles.</li> </ul> <!-- text end --> <!-- entry end --> </div> </div></div> <footer class="footer l-box is-center"> This site's source is <a href="https://code.undefinedhackers.net/GNUsocial/gnusocial.rocks">hosted here</a>. </footer></body></html>