[COMPONENT][Link] Remove relation to note when note is removed

Moved entity NoteToLink to the component

components/Link/Entity/NoteToLink.php

@@ -0,0 +1,159 @@
+<?php
+
+// {{{ License
+// This file is part of GNU social - https://www.gnu.org/software/social
+//
+// GNU social is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// GNU social is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with GNU social.  If not, see <http://www.gnu.org/licenses/>.
+// }}}
+
+namespace Component\Link\Entity;
+
+use App\Core\DB\DB;
+use App\Core\Entity;
+use App\Core\Event;
+use DateTimeInterface;
+
+/**
+ * Entity for relating a Link to a post
+ *
+ * @category  DB
+ * @package   GNUsocial
+ *
+ * @author    Diogo Peralta Cordeiro <mail@diogo.site>
+ * @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
+ * @license   https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
+ */
+class NoteToLink extends Entity
+{
+    // {{{ Autocode
+    // @codeCoverageIgnoreStart
+    private int $link_id;
+    private int $note_id;
+    private \DateTimeInterface $modified;
+
+    public function setLinkId(int $link_id): self
+    {
+        $this->link_id = $link_id;
+        return $this;
+    }
+
+    public function getLinkId(): int
+    {
+        return $this->link_id;
+    }
+
+    public function setNoteId(int $note_id): self
+    {
+        $this->note_id = $note_id;
+        return $this;
+    }
+
+    public function getNoteId(): int
+    {
+        return $this->note_id;
+    }
+
+    public function setModified(DateTimeInterface $modified): self
+    {
+        $this->modified = $modified;
+        return $this;
+    }
+
+    public function getModified(): DateTimeInterface
+    {
+        return $this->modified;
+    }
+    // @codeCoverageIgnoreEnd
+    // }}} Autocode
+
+    /**
+     * Create an instance of NoteToLink or fill in the
+     * properties of $obj with the associative array $args. Doesn't
+     * persist the result
+     *
+     * @param null|mixed $obj
+     */
+    public static function create(array $args, $obj = null)
+    {
+        $link = DB::find('link', ['id' => $args['link_id']]);
+        $note = DB::find('note', ['id' => $args['note_id']]);
+        Event::handle('NewLinkFromNote', [$link, $note]);
+        $obj = new self();
+        return parent::create($args, $obj);
+    }
+
+    /**
+     * @param int $note_id
+     * @return mixed
+     */
+    public static function removeWhereNoteId(int $note_id): mixed
+    {
+        return DB::dql(
+            <<<'EOF'
+                DELETE FROM note_to_link ntl
+                WHERE ntl.note_id = :note_id
+                EOF,
+            ['note_id' => $note_id],
+        );
+    }
+
+    /**
+     * @param int $link_id
+     * @param int $note_id
+     * @return mixed
+     */
+    public static function removeWhere(int $link_id, int $note_id): mixed
+    {
+        return DB::dql(
+            <<<'EOF'
+                DELETE FROM note_to_link ntl
+                WHERE (ntl.link_id = :link_id
+                           OR ntl.note_id = :note_id)
+                EOF,
+            ['link_id' => $link_id, 'note_id' => $note_id],
+        );
+    }
+
+    /**
+     * @param int $link_id
+     * @return mixed
+     */
+    public static function removeWhereLinkId(int $link_id): mixed
+    {
+        return DB::dql(
+            <<<'EOF'
+                DELETE FROM note_to_link ntl
+                WHERE ntl.link_id = :link_id
+                EOF,
+            ['link_id' => $link_id],
+        );
+    }
+
+    public static function schemaDef(): array
+    {
+        return [
+            'name'   => 'note_to_link',
+            'fields' => [
+                'link_id'  => ['type' => 'int', 'foreign key' => true, 'target' => 'link.id', 'multiplicity' => 'one to one', 'name' => 'note_to_link_link_id_fkey', 'not null' => true, 'description' => 'id of link'],
+                'note_id'  => ['type' => 'int', 'foreign key' => true, 'target' => 'Note.id', 'multiplicity' => 'one to one', 'name' => 'note_to_link_note_id_fkey', 'not null' => true, 'description' => 'id of the note it belongs to'],
+                'modified' => ['type' => 'timestamp', 'not null' => true, 'default' => 'CURRENT_TIMESTAMP', 'description' => 'date this record was modified'],
+            ],
+            'primary key' => ['link_id', 'note_id'],
+            'indexes'     => [
+                'link_id_idx' => ['link_id'],
+                'note_id_idx' => ['note_id'],
+            ],
+        ];
+    }
+}