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cfRssFeed(feedURL[, amount])

Last updated November 20, 2008

author

Jose Diaz-Salcedo

Version: 2 | Requires: CF6 | Library: StrLib

Description:
This UDF display's a rss feed to a web browser, in a readable format.

Return Values:
Returns a query.

Example:

<cfinclude template="rssfeedUdf.cfm">

<cfset rssFeed = cfRssFeed("http://news.bbc.co.uk/rss/newsonline_uk_edition/front_page/rss.xml")>

<font face="arial" size="2">
<ul>
<cfoutput query="rssFeed">
  <li><b><a href="#link#">#title#</a></b> - #description#</li><br>
</cfoutput>
</ul>
</font>

Parameters:

Name Description Required
feedURL RSS URL. Yes
amount Restricts the amount of items returned. Defaults to number of items in the feed. No

Full UDF Source:

<!---
 Display rss feed.
 Changes by Raymond Camden and Steven (v2 support amount)
 
 @param feedURL 	 RSS URL. (Required)
 @param amount 	 Restricts the amount of items returned. Defaults to number of items in the feed. (Optional)
 @return Returns a query. 
 @author Jose Diaz-Salcedo (bleachedbug@gmail.com) 
 @version 2, November 20, 2008 
--->
<cffunction name="cfRssFeed" access="public" returntype="query" output=false>
	<cfargument name="feedUrl" type="string" required="true"/>
	<cfset var news_file = arguments.feedurl>
	<cfset var rss = "">
	<cfset var items = "">
	<cfset var rssItems = "">
	<cfset var i = "">
	<cfset var row = "">
	<cfset var title = "">
	<cfset var link = "">
	
	<cfhttp url="#news_file#" method="get" />
	
	<cfset rss = xmlParse(cfhttp.filecontent)>

	<cfset items = xmlSearch(rss, "/rss/channel/item")>
	<cfset rssItems = queryNew("title,description,link")>

	<cfloop from="1" to="#ArrayLen(items)#" index="i">
		<cfset row = queryAddRow(rssItems)>
		<cfset title = xmlSearch(rss, "/rss/channel/item[#i#]/title")>

		<cfif arrayLen(title)>
			<cfset title = title[1].xmlText>
		<cfelse>
			<cfset title="">
		</cfif>

		<cfset description = XMLSearch(items[i], "/rss/channel/item[#i#]/description")>

		<cfif ArrayLen(description)>
			<cfset description = description[1].xmlText>
		<cfelse>
			<cfset description="">
		</cfif>

		<cfset link = xmlSearch(items[i], "/rss/channel/item[#i#]/link")>

		<cfif arrayLen(link)>
			<cfset link = link[1].xmlText>
		<cfelse>
			<cfset link="">
		</cfif>

		<cfset querySetCell(rssItems, "title", title, row)>
		<cfset querySetCell(rssItems, "description", description, row)>
		<cfset querySetCell(rssItems, "link", link, row)>

	</cfloop>

	<cfreturn rssItems />

</cffunction>
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