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createRSSQuery(url)

Last updated August 25, 2005

author

Joe Nicora

Version: 1 | Requires: CF6 | Library: StrLib

Description:
Converts an RSS 0.9+ feed into a structure. The structure contains meta information about the feed and a query of feed items.

Return Values:
Returns a structure.

Example:

<cfset myRSS = createRSSQuery("http://www.nicora.net/rss/blog/","feed") />

<cfdump var="#myRSS#">

Parameters:

Name Description Required
url URL to retrive. Yes

Full UDF Source:

<!---
 Converts an RSS 0.9+ feed into a structure.
 
 @param url 	 URL to retrive. (Required)
 @return Returns a structure. 
 @author Joe Nicora (joe@seemecreate.com) 
 @version 1, August 25, 2005 
--->
<cffunction name="createRSSQuery">
	/**
	 * Converts an RSS 0.9+ feed into a query.
	 * 
	 * @param url 	 		RSS feed url, must be valid RSS. (Required)
	 * @param feedName 	 	Name to give the feed's information returned as a structure. (Required)
	 * @return 				Returns a query. 
	 * @author 				Joe Nicora (joe@seemecreate.com) 
	 * @version 1, 			May 16, 2005 
	 */
	<cfargument name="url" required="Yes" />
	
	<cfset var xmlText = "">
	<cfset var start = "">
	<cfset var end = "">
	<cfset var lenth = "">
	<cfset var xmlDoc = "">
	<cfset var myXMLDoc = "">
	<cfset var feedLen = "">
	<cfset var columnList = "title,description,link,pubDate">
	<cfset var result = structNew()>
	<cfset var row = "">
	<cfset var col = "">
		
	<cfhttp url="#url#" method="GET" resolveurl="false" /> 
	
	<cfscript>
		XMLText = cfhttp.fileContent;
		if (find("<?",XMLText)) {
			start = find("<?",XMLText);
			end = find("?>",XMLText);
			length = end - start;
			XMLText = right(XMLText,len(XMLText)-length);
		}
		XMLDoc = "<root>" & XMLText & "</root>";
		myXMLDoc = XMLParse(XMLDoc,false);
		feedLen = arrayLen(myXMLDoc.root.rss.channel.item);
		
		result.title = myXMLDoc.root.rss.channel.title.XMLText;
		result.description = myXMLDoc.root.rss.channel.description.XMLText;
		result.link = myXMLDoc.root.rss.channel.link.XMLText;
		
		result.feedQuery = queryNew(columnList);
		
		queryAddRow(result.feedQuery,feedLen);
		
		for (row=1; row LTE feedLen; row=row+1) {
			for (col=1; col LTE listLen(columnList); col=col+1) {
				if (NOT col IS 4) 
					querySetCell(result.feedQuery,listGetAt(columnList,col), myXMLDoc.root.rss.channel.item[row][listGetAt(columnList,col)].XMLText,row);
				else
					querySetCell(result.feedQuery,listGetAt(columnList,col),parseDateTime(myXMLDoc.root.rss.channel.item[row][listGetAt(columnList,col)].XMLText),row);
			}	
		}
		return result;
	</cfscript>
</cffunction>
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