Combination of initial files and some new code for login and user registration.

app/models/Account.php

@@ -0,0 +1,36 @@
+<?php
+
+
+class Account extends Eloquent
+{
+
+    public function accountType()
+    {
+        return $this->belongsTo('AccountType');
+    }
+
+    public function transactions()
+    {
+        return $this->hasMany('Transaction');
+    }
+
+    public function user()
+    {
+        return $this->belongsTo('User');
+    }
+
+
+    /**
+     * Get an accounts current balance.
+     *
+     * @param \Carbon\Carbon $date
+     *
+     * @return float
+     */
+    public function balance(\Carbon\Carbon $date = null)
+    {
+        $date = is_null($date) ? new \Carbon\Carbon : $date;
+        return floatval($this->transactions()->sum('amount'));
+    }
+
+}