Error Codes

Formsender returns different error codes when invalid data is sent from the form.

Error Number	Error Message	Cause
1	Invalid Email	User submitted an invalid email
2	Invalid Name	Name field was empty
3	Improper Form Submission	Hidden field was not empty or token was invalid
4	Too Many Requests	Number of submissions violated CEILING variable from conf.py
5	Duplicate Request	This request is a duplicate of an earlier request

These error codes can be handled with a little javascript in your redirect page:

// Get error number and message from query string
function getQueryVariable(variable) {
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i = 0; i < vars.length; i++) {
    var pair = vars[i].split("=");
    if(pair[0] == variable) {
      return pair[1];
    }
  }
  return (false);
}

var errorNumber = getQueryVariable("error");
var errorMessage = getQueryVariable("message");

// errorMessage will only be a string if a query string is present.
// If a query string is present, there was an error. Format the message.
if (typeof errorMessage == "string") {
  errorMessage = errorMessage.replace("+", " ").replace("/", "");
}

// If both these exist, there was an error with the submission, write to page
if (errorNumber && errorMessage) {
  document.write("<h3 style='color:red'>An error occurred with your form submission</h3>",
                 "<p style='color:red'>Error number: ", errorNumber, "</p>",
                 "<p style='color:red'>Error message: ", errorMessage, "</p>");
}