Removed my own validation source in favour of Ardent.

app/models/Account.php

@@ -1,9 +1,14 @@
 <?php
+use LaravelBook\Ardent\Ardent as Ardent;
 
-
-class Account extends Elegant
+class Account extends Ardent
 {
 
+    /**
+     * Validation rules.
+     *
+     * @var array
+     */
     public static $rules
         = [
             'name'            => 'required|between:1,100',
@@ -13,6 +18,11 @@ class Account extends Elegant
 
         ];
 
+    /**
+     * Factory instructions
+     *
+     * @var array
+     */
     public static $factory
         = [
             'name'            => 'string',
@@ -21,11 +31,21 @@ class Account extends Elegant
             'active'          => '1'
         ];
 
+    /**
+     * Account type.
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     */
     public function accountType()
     {
         return $this->belongsTo('AccountType');
     }
 
+    /**
+     * User
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     */
     public function user()
     {
         return $this->belongsTo('User');
@@ -42,11 +62,20 @@ class Account extends Elegant
     {
         $date = is_null($date) ? new \Carbon\Carbon : $date;
 
-        return floatval($this->transactions()
-            ->leftJoin('transaction_journals', 'transaction_journals.id', '=', 'transactions.transaction_journal_id')
-            ->where('transaction_journals.date', '<=', $date->format('Y-m-d'))->sum('transactions.amount'));
+        return floatval(
+            $this->transactions()
+                ->leftJoin(
+                    'transaction_journals', 'transaction_journals.id', '=', 'transactions.transaction_journal_id'
+                )
+                ->where('transaction_journals.date', '<=', $date->format('Y-m-d'))->sum('transactions.amount')
+        );
     }
 
+    /**
+     * Transactions.
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\HasMany
+     */
     public function transactions()
     {
         return $this->hasMany('Transaction');