Question

There is a simple sample with column validation:

    function requiredFieldValidator(value) {
      if (value == null || value == undefined || !value.length) {
        return {valid: false, msg: "This is a required field"};
      } else {
        return {valid: true, msg: null};
      }
    }

and to validate column it is just needed to put this option: validator: requiredFieldValidator

But how can I use regex function if I need to pass extra parameter – regex string.

Answer 1

By default, you cannot pass more parameters into the validator method, however you can easily edit the source to allow it.

in slick.editors.js look for:

this.validate = function () {
  if (args.column.validator) {
    var validationResults = args.column.validator($input.val());
    if (!validationResults.valid) {
      return validationResults;
    }
  }

  return {
    valid: true,
    msg: null
  };
};

change: var validationResults = args.column.validator($input.val());

to: var validationResults = args.column.validator($input.val(), $input);

this will change your validator method signature to something like:

function requiredFieldValidator(value, input)

With that, you can get whatever attributes you want out of input with input.attr('validation-expression') or input.data... or whatever.