Best of Talk (05/04/04)

 
May 15, 2004

By Dina Hess

Title: Stock Quotes, Free
Date: 05/04/04      (22 Posts)
Summary: Trying to locate a free-to-cheap web service that provides the latest stock quotes? This thread points to resources offering quotes with a 20-minute delay. You'll also find an interesting discussion about legal issues with screen scraping.
Related: Is Scraping Legal, WAS: Stock Quotes, Free
 
Title: Web Service Woes
Date: 05/04/04      (15 Posts)
Summary: Need to return a query (array of structures) via a web service? Be sure to apply Macromedia's web service hotfix first. To pass queries from ColdFusion to JavaScript, try WDDX, a thin array, or Rob Rohan's Neuromancer.
 
Title: CFCs That Perform INSERT...Yikes...
Date: 05/04/04      (19 Posts)
Summary: Looking for a CFC example of a database INSERT? Find it here along with a critique covering use of CFOUTPUT and CFTRANSACTION within the CFC.
 
Title: Custom Tag Bug?
Date: 05/04/04      (18 Posts)
Summary: A developer's struggle to find out why a custom tag runs twice when the call is formatted as <cf_hello/> gives rise to a discussion about the dubious practice of applying XML syntax to ColdFusion tags.
 
Title: Eye Candy While Long Page Loads
Date: 05/04/04      (4 Posts)
Summary: Need to add a "page is loading" image or prompt that utilizes CFFLUSH? Try this:
<div id="loading">
Please wait, loading...
</div>
<cfflush>
<script>
obj=document.getElementById('loading');
if (obj)
{obj.style.display='none';}
else
{document.getElementById('loading').style.display='none';}
</script>
 
Title: CFTRANSACTION Action = Rollback?
Date: 05/04/04      (9 Posts)
Summary: Queries contained within a CFTRANSACTION block are automatically rolled back or committed; so unless you need partial commits or rollbacks within a complex transaction, you will not need to invoke actions for COMMIT and ROLLBACK. To handle database errors occurring within a CFTRANSACTION block, wrap with CFTRY/CFCATCH or use CFERROR with TYPE="exception" and EXCEPTION="database."
 

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