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coldfusioncfloop

cfloop empty query condition?


I have the following ColdFusion code that is getting information from a database and displaying the results on the homepage. Here's the cfquery code:

<cfquery name="getSchedule" datasource="#APPLICATION.datasource#" dbtype="odbc">
SELECT * FROM SCHEDULE_Days SD 
LEFT JOIN SCHEDULE_ScheduledClasses SSC ON SD.day_id = SSC.day_id
LEFT JOIN SCHEDULE_Classes SC ON SSC.class_id = SC.class_id
WHERE SD.day_date = #createODBCDate(now())# AND SSC.schedule_cancelled = 0
ORDER BY SSC.start_time
</cfquery>

and the output code:

<cfoutput>
<cfloop query="getSchedule">
<tr>
<td width="40">&nbsp;</td>
<td width="74">#lcase(timeFormat(start_time,"h:mm tt"))#</td>
<td width="158">#class_name#</td>
</tr>
</cfloop>
</cfoutput>

The issue is, if there is no data contained within getSchedule (i.e., there are no ScheduledClasses), it displays nothing.

I'm looking for a way to change this so that, in the event that there is no data to display, I can specify a message and code to be shown in its absence.


Solution

  • First just a quick CF tip you can make you code better by doing it this way:

    <cfif getSchedule.recordcount GT 0>
        <cfoutput query="getSchedule">
        <tr>
            <td width="40">&nbsp;</td>
            <td width="74">#lcase(timeFormat(getSchedule.start_time,"h:mm tt"))#</td>
            <td width="158">#getSchedule.class_name#</td>
        </tr>
        </cfoutput>
    <cfelse>
        <p>Empty record message here</p>
    </cfif>
    

    The reason I put the query output first is most likely this will happen more than with your empty set message.