Adobe 38043740 - ColdFusion Standard - Mac Development Manual page 343

DEVELOPING COLDFUSION 9 APPLICATIONS
Developing CFML Applications
<!--- Run this code if the feed URL form has been submitted. --->
<cfif isDefined("Form.submit")>
<cfloop index="i" from="1" to="3">
<!--- Use array notation and string concatenation to create a variable
for this feed. --->
<cfset theFeed = Form["Feed"&i]>
<cfif theFeed NEQ "">
<!--- Use a separate thread to get each of the feeds. --->
<cfthread action="run" name="t#i#" feed="#theFeed#">
<cffeed source="#feed#"
properties="thread.myProps"
query="thread.myQuery">
</cfthread>
<cfelse>
<!--- If the user didn't fill all fields, show an error message. --->
<h3>This example requires three feeds.<br />
Click the Back button and try again.</h3>
<cfabort>
</cfif>
</cfloop>
<!--- Join the three threads. Use a 6 second timeout. --->
<cfthread action="join" name="t1,t2,t3" timeout="6000" />
<!--- Use a loop to display the results from the feeds. --->
<cfloop index="i" from="1" to="3">
<!--- Use the cfthread scope and associative array notation to get the
Thread scope. --->
<cfset feedResult=cfthread["t#i#"]>
<!--- Display feed information only if you got items,
for example, the feed must complete before the join. --->
<cfif isDefined("feedResult.myQuery")>
<cfoutput><h2>#feedResult.myProps.title#</h2></cfoutput>
<cfoutput query="feedResult.myQuery">
<p><a href="#RSSLINK#">#TITLE#</a></p>
</cfoutput>
</cfif>
</cfloop>
</cfif>
<!--- The form for entering the feeds to aggregate. --->
<cfform>
<h3>Enter three RSS Feeds</h3>
<cfinput type="text" size="100" name="Feed1" validate="url"
value="http://rss.adobe.com/events.rss?locale=en"><br />
<cfinput type="text" size="100" name="Feed2" validate="url"
value="http://weblogs.macromedia.com/dev_center/index.rdf"><br />
<cfinput type="text" size="100" name="Feed3" validate="url"
value="http://rss.adobe.com/studio.rss?locale=en"><br />
<cfinput type="submit" name="submit">
</cfform>
Last updated 1/20/2012
338