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Setting Session Variable from SQL SELECT

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  • Setting Session Variable from SQL SELECT

    I have this function, and I would like to set a session variable within it from the SQL SELECT results, instead of making another call back to the server.

    How would I set the Firstname field from the sqlStmt to be session.FirstName?

    This has to be easier than I'm thinking....

    Code:
    function getCustomerInfo as c (e as p)
    	
    debug(1)
    
    dim cn AS SQL::Connection
    dim rs AS SQL::ResultSet
    dim args AS SQL::Arguments
    dim customerId as n
    dim js as c
    dim sqlStmt as c
    dim flag as l
    dim custData as c
    
    'get the cusotmerId
    customerId = e.dataSubmitted.Customer_Id
    
    flag = cn.Open("::Name::SQL")
    if flag = .f. then
    	cn.close()
    	js = "alert('Error Connecting to Database);"
    	getCustomerInfo = js
    	exit function
    end if	
    
    sqlStmt = "SELECT Firstname, Lastname FROM Customers WHERE Customer_ID = :custId "
    args.set("custId", customerId)
    
    flag = cn.Execute(sqlStmt,args)
    if flag = .f. then
    	cn.close()
    	js = "alert('Error executing query');"
    	getCustomerInfo = js
    	exit function
    end if
    
    rs = cn.ResultSet
    custData = rs.ToJSONObjectSyntax()
    
    'pass back a call to a Javascript function... including the customer info data... now in JSON format.
    getCustomerInfo = "processCustomerInfo('" + custData + "');"
    
    cn.close()
    
    end function

  • #2
    Re: Setting Session Variable from SQL SELECT

    Try this...

    session.FirstName = rs.data("Firstname")
    Mike Brown - Contact Me
    Programmatic Technologies, LLC
    Programmatic-Technologies.com
    Independent Developer & Consultant

    Comment


    • #3
      Re: Setting Session Variable from SQL SELECT

      Bingo! Thanks!

      Comment


      • #4
        Re: Setting Session Variable from SQL SELECT

        One minor thing. Attached is the login screen where the employee scans their ID card and it logs them in. And that's when the xbasic function getEmployeeInfo is ran, and also that new session variable setting. If you run the function (click on Lookup) without anything in the field, this is the error that is shown. It will still work when you click in the field and scan your card, but the employee will freak out. Is there a way to have it so if nothing is submitted it just doesn't do anything or show any error?



        alpha.jpg

        Comment


        • #5
          Re: Setting Session Variable from SQL SELECT

          Sounds like you need some client-side evaluation on the lookup button. Without knowing how the Touch-here-scan button works I wouldn't be able to tell you what that eval/validation might be. Do you even need a separate lookup button? ....can you call your lookup function right after the employee swipes?
          Mike Brown - Contact Me
          Programmatic Technologies, LLC
          Programmatic-Technologies.com
          Independent Developer & Consultant

          Comment


          • #6
            Re: Setting Session Variable from SQL SELECT

            Web app... or PhoneGap Build app?

            You write... "without anything in the field"... without anything in what field?

            What's the order of operation/entry here? More detail is needed.

            Comment


            • #7
              Re: Setting Session Variable from SQL SELECT

              David, it's a web app.

              And Mike, you bring up a good point. Why have the button? The button was there prior to the capability to scan the magstripe card. The employee used to have to enter their 4 digit pin. But now they don't even know their pin. It's encoded in the card. So, I could eliminate the button, thus eliminating the error.

              Currently, the function is called right after the card is swiped. And it runs through a few lookup scenarios, which work fine.

              See. It always helps to sometime talk things through.

              Thanks!

              Comment

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