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Encrypt_String Issue

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  • Encrypt_String Issue

    Hi All

    I'm trying to encrypt a credit card number (field name CC_1) after it has been validated.

    The validation is done in the Field Rules using ccvalid().

    I've created an OnWroteField event in the Field Rules to then encrypt the card number using encrypt_string() as the code.

    The validation works fine, but it wont encrypt the data.

    Any ideas?

  • #2
    Re: Encrypt_String Issue

    Try using canwritefield instead of OnWroteField. Actually I think I would use cansaverecord.
    There can be only one.


    • #3
      Re: Encrypt_String Issue

      Originally posted by Stan Mathews View Post
      Try using canwritefield instead of OnWroteField. Actually I think I would use cansaverecord.
      Should my CanSaveRecord code be cc_1.value = encryptstring()?


      • #4
        Re: Encrypt_String Issue

        For table level field rule event code I would think something like

        tbl = table.current()
        tbl.cc_1 = encryptstring(tbl.cc_1)

        What were you using in the onwrotefield event?
        There can be only one.


        • #5
          Re: Encrypt_String Issue

          I was using encrypt_string() in the onwrotefield.

          I've since deleted that and used your code for the cansave event.

          It now gives me an error of Invalid Value (via field rule). This is strange because the only field rule i have for this field is the ccvalid.

          Any ideas?


          • #6
            Re: Encrypt_String Issue

            Probably because the encrypted string is not ccvalid().

            You'll probably be best served by validating the input on your form into a variable and then storing the encrypted string in the table.
            Another thought would be to have another field in the table to hold the encrypted string and blank the original data entry field when the encrypted string is saved.

            Can you attach an empty copy of your table here?
            There can be only one.


            • #7
              Re: Encrypt_String Issue

              Odd, I had another thought that maybe the validation rule could be

              ccvalid(card_number) .or. ccvalid(decrypt_string(card_number))

              but I can't make the validation rule editor recognize either function, encrypt_string() or decrypt_string().
              There can be only one.


              • #8
                Re: Encrypt_String Issue

                I've decided to follow your earlier advice of using a variable.

                Thanks for your help Stan!


                • #9
                  Re: Encrypt_String Issue

                  Here's an example of the blank out approach.

                  There can be only one.