Server support

[nilskp]

I didn't see a way to invoke errors on external validation, such as server side validation. This would be nice.

[elclanrs]

What do you mean? Can you elaborate a bit more?

[nilskp]

I want to submit a form, and on an error response from server, be able to highlight the fields in error. It doesn't look like I can do that today. It seems I can only do custom regex validation and form errors only pop up once I've entered the field. That wouldn't work for server validated fields.

[elclanrs]

Ideal Forms is all about live validation or "on the spot" as I like to call it. You can do an AJAX request within a custom filter. If the filter returns false then it fails validation and it shows your error; if it returns true then it passes. The filter will run the request "on the spot" and inform you through the error message.

var myFilter = {

  regex: function( input, value ) {
    var isValid = false
    $.post(
      'script.php',
      { value: value },
      function( data ) {
        // make sure to receive JSON from PHP with json_encode
        isValid = $.parseJSON(data)
      }
    )
    return isValid
  },

  error: 'Something went wrong...'

}

// Add filter to Ideal Forms
$.extend( $.idealforms.filters, myFilter )

If what you want to do is double check the values from client side then when a value is not correct you can just reset the field and then focus the field to show the error.

$myform.reset(['foo'])
$('input[name=foo]').trigger('focus')