expect a username if an account is being created

app/controllers/discourse_donations/charges_controller.rb

@@ -9,6 +9,8 @@ module DiscourseDonations
     def create
       if email.nil?
         response = {'message' => 'Please enter your email address'}
+      elsif create_account && params[:username].nil?
+        response = {'message' => 'Please enter a username'}
       else
         Stripe.api_key = SiteSetting.discourse_donations_secret_key
         currency = SiteSetting.discourse_donations_currency
@@ -33,6 +35,10 @@ module DiscourseDonations
 
     private
 
+    def create_account
+      params[:create_account]
+    end
+
     def email
       params[:email] || current_user.try(:email)
     end

assets/javascripts/discourse/components/stripe-card.js.es6

@@ -82,6 +82,8 @@ export default Ember.Component.extend({
             stripeToken: data.token.id,
             amount: self.get('amount') * 100,
             email: self.get('email'),
+            username: self.get('username'),
+            create_account: this.get('create_accounts')
           };
 
           if(!self.get('paymentSuccess')) {

spec/controllers/discourse_donations/charges_controller_spec.rb

@@ -22,6 +22,12 @@ module DiscourseDonations
       expect(response).to have_http_status(200)
     end
 
+    it 'expects a username if accounts are being created' do
+      post :create, { email: 'zipitydoodah@example.com', create_account: 'true' }
+      expect(body['message']).to eq('Please enter a username')
+      expect(response).to have_http_status(200)
+    end
+
     it 'responds ok for logged in user' do
       current_user = log_in(:coding_horror)
       post :create