Tip: Passing a shopping cart to Paypal Website Payments Standard

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Here's a little tip for anyone using Paypal's Website Payments Standard system for electronic payments on their shopping cart. Their API allows you to pass in a complete shopping cart using a series of form fields listing the items, quantities, etc, as you'd expect. There's one tiny little detail that isn't explicitly stated - the button that you use to submit to the API must not have a name attribute otherwise it will fail. Here's a fully working example to better explain:

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Details for iPhone web app development (UPDATED)

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Some details have been made available by The University of Washington on how to develop web applications for iPhone - lots of basics in there, like keeping a good separation of HTML and CSS, but also some specifics on e.g. the screen width, some limitations in place, etc. Mandatory reading for anyone doing iPhone apps.

UPDATE: Apparently someone didn't like the info being posted publically, so someone posted a copy of the iPhone details elsewhere.

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button_to HTML options not completely intuitive

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While working on a site in Rails tonight I was adding a button_to that I wanted a JS confirmation requester. Well, based on my albeit beginner knowledge of Rails I thought the following would work:
[source:ruby]
< %= button_to "Empty Cart", :action => :empty, :confirm => "Really empty your cart?" %>
[/source]

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