I think you already answered your own question…
“Do something magic and ABORT the request so the page doesn’t change”
</cfabort>, maybe trigger a warning message to appear that something’s gone
wrong…
From: houcfug@googlegroups.com <houcfug@googlegroups.com> On Behalf Of Mike G
Sent: 12 July, 2019 11:41 AM
To: houcfug@googlegroups.com
Subject: [houcfug] A BrainTeaser for ya...
[EXTERNAL EMAIL]
So, I have a page where folks are submitting shipment info and getting a label
back to the browser in pdf format using cfcontent, cfheader in a separate page
called getLabels.cfm. All the shipment processing is Ajaxy and wonderful, and
at the end a bit of javascript says...
window.location.replace("/pathTo/getShippingLabel.cfm?invoice="+o.invoice);
Simple and easy, normal stuff, been there, done that a million times..
<cfheader name="Content-Disposition" value="attachment;
filename=labels-#url.invoice#.pdf">
<cfcontent type="application/unknown"
file="#application.props.getproperty("labelsPath","")##url.invoice#.pdf">
So, here is the brain teaser. (and yeah, I left all the other code out)
When the label pdf doesn't exist, how to I stop the original calling page from
going to getLabels.cfm and displaying "File not found" message? I want the
user to stay on the page they are working in.
Instead I would like to do this in getLabels.cfm
<cfif not
fileexists("#application.props.getproperty("labelsPath","")##url.invoice#.pdf")>
Do something magic and abort the request so the page doesn't change
<cfelse>
<cfheader name="Content-Disposition" value="attachment;
filename=labels-#url.invoice#.pdf">
<cfcontent type="application/unknown"
file="#application.props.getproperty("labelsPath","")##url.invoice#.pdf">
</cfif>
in 20 years of CF, I have never tried this...
M
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