Refactor eloquent base (#9716)

* extract PortRelatedModel and DeviceRelatedModel

* add scope for inDeviceGroup

* handle null device group

app/Models/DeviceRelatedModel.php

@@ -0,0 +1,51 @@
+<?php
+/**
+ * DeviceRelatedModel.php
+ *
+ * -Description-
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @package    LibreNMS
+ * @link       http://librenms.org
+ * @copyright  2019 Tony Murray
+ * @author     Tony Murray <murraytony@gmail.com>
+ */
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Builder;
+
+class DeviceRelatedModel extends BaseModel
+{
+    // ---- Query Scopes ----
+
+    public function scopeHasAccess($query, User $user)
+    {
+        return $this->hasDeviceAccess($query, $user);
+    }
+
+    public function scopeInDeviceGroup($query, $deviceGroup)
+    {
+        $groups = $deviceGroup instanceof DeviceGroup ? $deviceGroup->devices()->pluck('devices.device_id') : [];
+        return $query->whereIn($this->getTable() . '.device_id', $groups);
+    }
+
+    // ---- Define Relationships ----
+
+    public function device()
+    {
+        return $this->belongsTo('App\Models\Device', 'device_id', 'device_id');
+    }
+}