From dc582e5980a089c0826e0764d1c8b5b23e5d766f Mon Sep 17 00:00:00 2001
From: Matt Dunn-Rankin <mattdunnrankin@khanacademy.org>
Date: Sat, 7 Jan 2017 19:19:44 -0800
Subject: [PATCH] donation error handling

---
 app/controllers/donations_controller.rb | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/app/controllers/donations_controller.rb b/app/controllers/donations_controller.rb
index e818065b..438646ac 100644
--- a/app/controllers/donations_controller.rb
+++ b/app/controllers/donations_controller.rb
@@ -1,9 +1,20 @@
 class DonationsController < ApplicationController
   def create
     @campaign = Campaign.current
-    @donation = Donation.create_from_charge(
-      @campaign, current_user, params[:donation])
-    redirect_to @donation
+    begin
+      @donation = Donation.create_from_charge(
+        @campaign, current_user, params[:donation])
+    rescue Stripe::CardError => e
+      flash[:alert] = "We couldn't process your donation: #{e.message}"
+      redirect_to :donate
+    rescue => e
+      flash[:alert] =
+        "We couldn't process your donation: #{e.message} " +
+        "Please try again later!"
+      redirect_to :donate
+    else
+      redirect_to @donation
+    end
   end
 
   def show