Notes on WPS
Kenneth Ballenegger
I'm trying to build it in a way that's least hacky possible. So we
could merge it back into trunk.
What I've got so far:
order_controller.rb line 85 (between the PayPal and GCheckout section)
---
# Handle PayPal WPS orders
elsif params[:payment_type] == 'paypal_wps'
@order.payment_type = 'paypal_wps'
@order.licensee_name = 'paypal_wps'
@order.status = 'P'
@order.save!
render :action => 'payment_paypal_wps' and return
---
I'm aware that this is probably not the best way of doing it, but it
looks like it's the only way. The order has to be saved to database
before we send it over to PayPal, and at this point, we don't know
licensee_name yet. So I just put in some dummy value because otherwise
it won't save. (I didn't think removing the validation for a licensee
name was a good idea). I also though that stats Pending was the best
status yet (Maybe we should just leave status out?). Unless of course
you decide to send licenses to pending payments.
Another problem with this is that the unfinished order stays in the
database even if the customer cancels (closes browser window) the
order at the confirm step.
Created a new view based off the gcheckout view:
payment_paypal_wps.rhtml
---
<h1>Confirm</h1>
<% unless @order.errors.empty? %>
<div id="errors">
<h2 style="margin-bottom:14px;color:red">Problems</h2>
<ul>
<% @order.errors.each_full do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<p>Your license key, along with your purchase receipt, will be emailed
to your PayPal email address.</p>
<div class="d cl"></div>
<div class="narrow">
<% if @order.items_count == 1 %>
<h2>Your Item</h2>
<% else %>
<h2>Your Items</h2>
<% end %>
<table id="order">
<% for item in @order.line_items -%>
<% if item.quantity > 0 -%>
<tr>
<td class="price"><%= item.quantity %> @ <%= number_to_currency
item.unit_price %> each</td>
<td class="prod"><%= item.product.name %></td>
</tr>
<% end -%>
<% end -%>
<% if @order.coupon -%>
<tr>
<td class="price">-<%= number_to_currency(@order.coupon_amount) %></
td>
<td><%= @order.coupon.description %></td>
</tr>
<% end -%>
<tr id="total">
<td></td>
<td>Total: <strong><%= number_to_currency @order.total %></strong></
td>
</tr>
</table>
</div>
<% if $STORE_PREFS['google_analytics_account'] != "" -%>
<script src="http://checkout.google.com/files/digital/urchin_post.js"
type="text/javascript"></script>
<% end -%>
<%
if $STORE_PREFS['google_analytics_account'] != ""
form_onsubmit = "javascript:setUrchinInputCode();return
validate();"
else
form_onsubmit = "javascript:return validate();"
end
-%>
<div class="d"></div>
<p>
<form action="https://www.paypal.com/cgi-bin/webscr" method="post"
style="float:right;">
<input type="hidden" name="cmd" value="_xclick">
<input type="hidden" name="business" value="sa...@azuretalon.com">
<input type="hidden" name="item_name"
value="Azure Talon Software Purchase">
<input type="hidden" name="item_number"
value="<%= @order.id %>">
<input type="hidden" name="amount" value="<%= @order.total %>">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="no_note" value="1">
<input type="hidden" name="currency_code" value="EUR">
<input type="hidden" name="bn" value="IC_Sample">
<input type="hidden" name="return" value="http://store.azuretalon.com/store/order/thanks
">
<input type="hidden" name="notify_url" value="http://store.azuretalon.com/store/notification/paypal
">
<input type="submit" name="submit" value="Continue to PayPal">
</form>
</p>
---
In that last section, I hardcoded a few values, which should be
dynamically coded if this was merged back (and I case I change domain
or something, who knows)
Edited a section in new.rhtml:
---
<% if false then -%>
<p class="creditcards">
<%= radio_button_tag 'payment_type', 'cc', !(['paypal',
'gcheckout'].member? @payment_type), :id => 'creditcard' %>
<img src="/images/store/visa.gif" alt="Visa" /><img src="/images/
store/mc.gif" alt="MasterCard" /><img src="/images/store/amex.gif"
alt="Amex" /><img src="/images/store/discover.gif" alt="Discover" />
</p>
<p class="paypal" style="font: 10px helvetica">
<%= radio_button_tag 'payment_type', 'paypal', @payment_type ==
'paypal', :id => 'paypal' %>
<img src="/images/store/paypal.gif" alt="PayPal" />
Shop without sharing your financial information
</p>
<% end -%>
<p class="paypal" style="font: 10px helvetica">
<%= radio_button_tag 'payment_type', 'paypal_wps', true, :id =>
'paypal_wps' %>
<img src="/images/store/paypal.gif" alt="PayPal" />
Shop without sharing your financial information
</p>
<% if $STORE_PREFS['allow_google_checkout'] then -%>
<p class="gcheckout">
<%= radio_button_tag 'payment_type', 'gcheckout', @payment_type ==
'gcheckout', :id => 'gcheckout' %>
<img src="/images/store/gcheckout.gif" alt="Google Checkout" />
</p>
<% end -%>
---
the 'if false then' are just a way of commenting standard paypal out
the third argument to radio_button_tag is true, because that's the
only option on my personal store, but if merged back, i think it
should be @payment_type == 'paypal_wps'
order.rb (the model)
---
def paypal_wps?
return self.payment_type != nil && self.payment_type.downcase
== 'paypal_wps'
end
---
don't think it's actually required, but I put it in there anyway.
and lastly, not quite finished with that, but here's the gist of it:
PayPal IPN.
notification_controller.rb
---
## Handeling PayPal IPN
def paypal
if @request.method == :post
# use the POSTed information to create a call back URL to
PayPal
@query = 'cmd=_notify-validate'
@request.params.each_pair {|key, value| @query = @query +
'&' + key + '='
+ value.first if key != 'register/pay_pal_ipn.html/pay_pal_ipn' }
#POST this data
http = Net::HTTP.start(PAYPAL_URL, 80)
response = http.post('/cgi-bin/webscr', @query)
http.finish
# PayPal values
item_name = @params[:item_name]
item_number = @params[:item_number]
payment_status = @params[:payment_status]
payment_amount = @params[:mc_gross]
payment_currency = @params[:mc_currency]
txn_id = @params[:txn_id]
receiver_email = @params[:receiver_email]
payer_email = @params[:payer_email]
if response
if response.body.chomp 'VERIFIED'
# check the payment status
if payment_status 'Completed'
# should check to see if the txn_id already exists
order = Order.find(item_number)
order.first_name = @params[:first_name]
order.last_name = @params[:last_name]
order.email = payer_email
if order.email == nil # This shouldn't happen, but
just in case
order.status = 'F'
order.failure_reason = 'Did not get email from
PayPal'
order.finish_and_save()
return
end
order.address1 = @params[:address_street]
order.address2 = ''
order.city = @params[:address_city]
order.company = @params[:payer_business_name]
# order.country = @params[:address_country_code]
order.zipcode = @params[:address_zip]
# order.state = @params[:address_state]
order.transaction_number = txn_id
order.status = 'C'
order.finish_and_save()
OrderMailer.deliver_thankyou(order) if is_live()
end
end
end
else
# GET request, wtf
@text = 'I do not speak GET'
end
rescue Net::HTTPError
@text = 'HTTP error'
end
---
all i got for now... I hope I'm getting somewhere here
---
Kenneth Ballenegger
www.seoxys.com
seo...@gmail.com
Azure Talon Software
www.azuretalon.com
sup...@azuretalon.com
Exces
www.excesapp.com
Andy Kim
You could avoid saving the pending order if you can transmit line item
information to PayPal and get it back, but if you can't, don't worry
about it. Most e-commerce software that I've seen do the same thing
and periodically purge the old pending orders.
Andy Kim
Potion Factory LLC