I store PDF receipts in S3. I use WickedPDF for generating the PDF files. Via the admin area of our app, there is a "Download" link, that is simply a direct link to the S3 path:
link_to "Download", order.receipt.url unless order.receipt.blank?
Any idea on how I can have it default to opening in a browser window instead of direct download?
The trick is to change the headers, if you link to a static file your webserver (S3) will add a header Content-Disposition: attachment; filename="name.pdf" without this header the browser will try to render this inline (same window).
To solve this issue you could have an action on your controller that downlaods the file itself and steams it to the user
require "open-uri"
class OrderController
def receipt
@order=Order.find(....)
render text: open(@order.receipt.url).read, content_type=>'application/pdf'
end
end
Obviously add a route to it identifying the order and link to this new action, this will render the pdf downloaded by rails without the 'attachment' header.
Render pdf:
render pdf: "Invoice",
orientation: 'Portrait',
template: "Invoice/download",
page_size: 'Letter'
If the PDF should be shown in a part of the page, you could use the following code on your page
<object data="<%= upload.file.url %>" width="100%" height="100%" style="min-height: 100%; height:100%; width:100%" type="<%= upload.mime_type %>">
<p>No PDF render functionality on your device...</p>
</object>
If you just want to show the PDF as a full page file, use this in your controller (creating a pdf on the fly)
pdf = @sales_invoice.pdf
send_data pdf.render, filename: "sales_invoice.pdf",
type: "application/pdf",
disposition: "inline"
use send_file method. This is the link that may help you. http://apidock.com/rails/ActionController/Streaming/send_file
