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Hello - I'm very new to coldfusion and programming for that matter. I'm trying to create a quadratic equation calculator program in Coldfusion. However - I don't know how to take the inputs from a user. I have a simple calculator function for the quadratic equation and have looked up various tutorials on how to take inputs. It appears that maybe I have to do a separate form but how do I pass information from that form into my program? Here's what I've done so far

<cfscript>


    function computeQuadratic(a,b,c) {
        var discriminant1 = (-1 * b) + sqr((b*b) -(4*a*c));

        var discriminant2 = (-1 * b) - sqr((b*b)-(4*a*c));

        var root1 = discriminant1/(2*a)
        var root2 = discriminant2/(2*a)

        writeOutput ("<p> the answer for root1 is #root1#</p>");
        writeOutput ("<p> the answer for root2 is #root2#</p>");

    }  computeQuadratic(3,8,4);

TLS1.1

I am using a jquery UI based jquery idletimeout plus and added all the necessary columns so when the Sessiontimeout is about to expire, it should extend it i have this code in my page

<cffunction name="backupSession" returntype="struct">        
<cfset local.backup = StructNew()>
    <cflock scope="session" timeout="10">
        <cfset str = {}>
        <cfloop collection="#session#" item="i">
            <cfset str[i] = duplicate(session[i])>
        </cfloop>
        <cfset local.backup.Original = str>            
    </cflock>
    <cfreturn local.backup>
</cffunction>

<cffunction name="restoreSession" returntype="void" >
    <cfargument required="true" name="backup" type="struct">        
    <cflock scope="session" timeout="10">
        <cfset local.Liste=StructKeyList(arguments.backup)>    
        <cfloop index="i" from="1" to="#ListLen(local.Liste)#">    
            <cfset LeItem=ListGetAt(local.Liste,i)>
            <cfset session[LeItem]=arguments.backup[LeItem]>
        </cfloop>
    </cflock>
</cffunction>

<cfoutput>
    <cfset retData = backupSession()>
    #restoreSession(retData)#
</cfoutput>

my Application.cfm file has timeout set as 4 minutes to session, do i need to call my application also to extend the session, because even if i say stay connected, i gets logged out

Unable to display image on cfdocument on the below code.

<div><img src="../barcodeImages/#barCode.image#"></div>

Any help is highly appreciated.

<cfdocument name="PaymentVoucher" format="pdf" >
			<h2 align="center">Payment Voucher</h2>
			<div style="margin-left:20px;">
			 
			To report contributions, submit this voucher ..............to:<br><br>
				<address>ABC Co<br>
						PO Box 123<br>
						Any City, VA 12349-0972<br>
				</address>
			</div>
			<cfoutput>
				<div style="margin-left:50px;">
					<br>
					<b>Voucher ID:</b><br>
					#Left(session.userlogin.acc_num,7)#.#dateformat(barcode.generatedTime, "mmddyyyy")#.#lastId#.#local_num#
					<br><br>
					<div style="margin-top:20x;width:25%;float:left;">
						<b>Work Period:</b>
					</div>
					<div style="margin-top:20x;width:75%;float:left;">
						<b>Reports:</b>
					</div>
					<cfset totalRunTot = 0>
					<cfloop query="getReportInfo">
						<div style="padding-bottom:5px;width:25%;float:left;">
							#getReportInfo.work_period#	
						</div>
						<div style="padding-bottom:5px;width:75%;float:left;">
							#getReportInfo.report_group# - $#getReportInfo.runtot#
						</div>
						<cfset totalRunTot += getReportInfo.runtot>
					</cfloop>
					 
					<div style="margin-top:20px;width:100%;">
						<b>Total Check Amount:</b>
						<br>#DollarFormat(totalRunTot)#
					</div>
					
					<div style="clear:both;float:left;margin:40px 0 0 0;">
						 						 
						 <div><img src="../barcodeImages/#barCode.image#"></div>
						<div style="letter-spacing:#letterspace#;font-weight:bold;">#Left(session.userlogin.acc_num,7)#.#dateformat(barcode.generatedTime, "mmddyyyy")#.#lastId#.#local_num#</div>
					</div> 
				<div>
			</cfoutput>
</cfdocument>

How do I document a component, it's properties and it's related functions in a matter similar to JavaDocs?

Sorry totally forgot what the cfml equivalent of echo is. Can someone please remind me?

writeoutput

thank you, writeOutput is what I was looking for! 🙂

https://coldfusion.adobe.com/2021/05/adobe-cf-certification-now-us149-including-many-hours-training/ I'm trying to find a CF video course for a newbie developer in training. We both work at the same company. I've got 20+ years experience in IT, most of it writing code. I have significant experience with CF. I saw the above course and have a couple questions. Can you use Lucee and VS Code instead of Adobe CF and CF Builder. I ask because I'm not sure how literal the videos are going to be about click this button to see this as opposed to covering syntax and general language concepts. I'm trying to give the newbie developer a bootcamp experience. I would do some pair programming with the developer working on simpler projects and progressing to more advanced projects later. He's got experience with HTML, CSS, some light JavaScript and some knowledge of SQL. I was hoping I could find a course that would cover syntax and theory so I could focus more on the projects with him. The Pluralsight course is too basic and stops short. I'm looking for the first half of Volume 1 of CFWACK book series level of knowledge. May some portions from the second half of Volume 1 as well. Things like variable scopes, forms, reading and writing to a db, etc. The reason I'm teaching him CF is because that's the language he would use most at work. He'd rather watch than read which is why I thought this course might help. Is this course a good fit? Any thoughts or recommendations are welcome.

i am usin cfquery to call a spx to insert and that insert has in the end as: select scope_identity(); which returns me the last inserted id, i am wondering how do i fetch it, its weird i can not get it

Hi all, While using Coldfusion version 21, in my app I have an issue like illegal character in path in paypal_console.jar file whereas in Coldfusion 16 I don't have that issue so can someone say what is the issue?

cflib icalUS seems only taking care of the US daytime savings, is there a global thing i can change so it reflects all countries timezoine or atleast make the time GMT enabled so it always displays in GMT instead of every country timezone, but if timezone can be done, it will be much better

how to get a 3rd row and 2nd column of 3rd row value from query

In a conversation elsewhere, I mention @markmandel and ColdSpring which got me to thinking about a podcast I guest appeared on in the early 00's... where I spoke about Test Driven Design and unit tests in general... So... I just wanted to throw out there.... Yell from a cliff-top and if something comes back - great - and if it doesn't - oh well I guess it was a duck's quack... Test driven-design is NOT about "anally" writing tests. It's most definitely NOT about getting a % of coverage, either. For me: It is only about code-confidence. Did the Bug fix... / Did the new feature... / Did the rewrite.... • Actually do what I am expecting it to do? • Break something I never thought would have a touch-point with my change.

Hi, I am trying to create an upsert for my table, if records exists, update else insert, for a table, anyone knows how to do all in one i am going in google but its too much information instead of just one small page which shows how it is done in sql server

Can we add HTML content to one of many sheets using cfspreadsheetobj?

<cfset objSpreadsheet = SpreadsheetNew("REGISTRO DE VENTAS") />					
				  <cfset SpreadSheetSetActiveSheet(objSpreadsheet, "REGISTRO DE VENTAS")/>	
				  <cfset SpreadsheetAddRow(objSpreadsheet,encabezadosMatrizVentas)>										  
				  <cfset SpreadsheetAddRows( objSpreadsheet, MatrizVentas) />

Instead of query I want to use html save content to export to excel in one of sheets

i need some help in rereplace, where i am trying to replace required='yes" or required='no' with default='''

Hi I have a password which contains #. ( abcd#456) I need to pass it in the argStruct when calling the createObject function. But I get syntax error. What to do ?

<cfset myObj = createObject('webservice', 'urltowsdl ', {authType = 'basic', username='abc@abc', password='abcd#456'})>

Trying to compare a time string ('hhmmss') that I receive - to the current time (any date parts are irrelevant). Looking at the CF date and time functions - didn't see anything that will compare times only. I guess I need to call CreateDateTime() - passing in the date parts from now(), plus my time parts - and then compare that constructed date with now(). Is this is scenario where I'd be better off dropping down to Java? say

<cfscript>
    jTime = createObject( "java", "java.time.LocalTime" )
    jEnum = createObject("java", "java.time.temporal.ChronoUnit");
    variables.time1 = jTime.now();
    variables.time2 = jTime.parse('17:28:51');
    echo(variables.time1.until(variables.time2, jEnum.seconds));
</cfscript>

Method gets called pretty often, otw I would not be sweating it. thanks!

i am looping over session collection, but i want to keep the session kes but make all the values as empty, right now i can loop over session and do a sessionclear which also deletes the sesisonkeys

I just finished a job interview, and 2 questions were asked that I didn't know about: (1) What is a closure?, and (2) when would you use === in ColdFusion? Is === in ColdFusion similar to when you would use === in javaScript. Can anybody help me understand these two items. Thanks so much!

what is wrong i am doing in JSOUp loop

TheTable = HTMLDocument.select("##tableID");
TheTable.addClass("styled-table");
			dateFields = TheTable.select('tr td:nth-child(4)');
			dateFields.forEach( field => {
			  field.innerText.split(/\s/)[0]);
			});

i am trying to remove the second value from the td of each row by looping over it which is seperated by   or space

anyone knows how can i write an email to me if onmisfire executes in cfschedule

looks for docs but not getting any =thingf

I am feeling stupid, I have the following <cfquery> in my page, but it is showing up blank. I don't think that there is anything wrong here, or at least I am not seeing it. Why would the page be blank, instead of showing the table of users in the database?

<cfquery name = "members" datasource = "cfhawaiiDBmain">         SELECT user_id,first_name,last_name, joining_date
    FROM users
    ORDER BY user_id
</cfquery>

<table>
    <cfoutput query="members">
        <tr>
            <td>#members.first_name#</td>
            <td>#members.last_name#</td>
            <td>#members.date#</td>
        </tr>
    </cfoutput>
</table>

This seems appropriate here, how do I implement an if statement in a sql query using queryExecute? Is it possible? Or do I bite the bullet and craft the sql in a var and use that var in the queryExecute call. I ask because I am modernizing and there are a LOT of queries like this - figured I'd "do it right" from the beginning.

<cfquery name="sortedQry" dbtype="query">
		select *
		from tmpQry
		order by 
		<cfif arguments.sortBy eq 0>
			volume
		<cfelse>
			length, width, height
		</cfif>
</cfquery>

CF Mail question, in the output in the mail How do I skip a line, I tried <br />, but it just shows up in the mail:

<cfmail   to="johnbarr@hawaii.edu" 
          from="john@cfhawaii.net"
          subject="Hawaii ColdFusion User Group Message"
          wraptext="75">
          From: #form.demo_name# (#form.demo_email#)<br />
          Comments: #form.demo_message#                                      </cfmail>

i am using Application.cfm and please do not ask to update, because not in my hands 🙂 so how can i have a maintenance page which checks if there is an outrage depending on sql connection,

another approach i am trying is to use

writedump(TheTable.select("tbody").before("#getHeaders#").toString()); abort;

to add thead before tbody but its not adding it