Fixes API sorting and filtering. Closes #1489

app/Models/Traits/SortableTrait.php

@@ -0,0 +1,40 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CachetHQ\Cachet\Models\Traits;
+
+use Illuminate\Database\Eloquent\Builder;
+
+/**
+ * This is the sortable trait.
+ *
+ * @author James Brooks <james@alt-three.com>
+ */
+trait SortableTrait
+{
+    /**
+     * Adds a sort scope.
+     *
+     * @param \Illuminate\Database\Eloquent\Builder $query
+     * @param string                                $column
+     * @param string                                $direction
+     *
+     * @return \Illuminate\Database\Eloquent\Builder
+     */
+    public function scopeSort(Builder $query, $column, $direction)
+    {
+        if (!in_array($column, $this->sortable)) {
+            return $query;
+        }
+
+        return $query->orderBy($column, $direction);
+    }
+}