New chart and lots of stuff for piggy banks

app/database/migrations/2014_11_15_112449_extend_piggybank_events.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+
+class ExtendPiggybankEvents extends Migration
+{
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+
+    }
+
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table(
+            'piggybank_events', function ($table) {
+                $table->integer('transaction_journal_id')->unsigned()->nullable();
+                $table->foreign('transaction_journal_id')->references('id')->on('transaction_journals')->onDelete('set null');
+            }
+        );
+    }
+
+}