Attachment model and database changes.

app/Models/Attachment.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace FireflyIII\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+/**
+ * Class Attachment
+ *
+ * @package FireflyIII\Models
+ */
+class Attachment extends Model
+{
+    use SoftDeletes;
+
+    protected $fillable = ['attachable_id', 'attachable_type', 'user_id', 'md5', 'filename', 'mime', 'size', 'uploaded'];
+
+    /**
+     * Get all of the owning imageable models.
+     */
+    public function attachable()
+    {
+        return $this->morphTo();
+    }
+
+    /**
+     * @codeCoverageIgnore
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     */
+    public function user()
+    {
+        return $this->belongsTo('FireflyIII\User');
+    }
+
+}