projekt kivitendo

  // Performs various validation steps on the descendants of

  // 'selector'. Elements that should be validated must have an

  // attribute named "data-validate" which is set to a space-separated

  // list of tests to perform. Additionally, the attribute

  // "data-title" must be set to a human-readable name of the field

  // that can be shown as part of an error message.

  //

  // Supported validation tests are:

  // - "required": the field must be set (its .val() must not be empty)

  //

  // The validation will abort and return "false" as soon as

  // validation routine fails.

  //

  // The function returns "true" if all validations succeed for all

  // elements.

  ns.validate_form = function(selector) {

    var validate_field = function(elt) {

      var $elt  = $(elt);

      var tests = $elt.data('validate').split(/ +/);

      var info  = {

        title: $elt.data('title'),

        value: $elt.val(),

      };

      for (var test_idx in tests) {

        var test = tests[test_idx];

        if (test === "required") {

          if ($elt.val() === '') {

            alert(kivi.t8("The field '#{title}' must be set.", info));

            return false;

          }

        } else {

          var error = "kivi.validate_form: unknown test '" + test + "' for element ID '" + $elt.prop('id') + "'";

          console.error(error);

          alert(error);

          return false;

        }

      }

      return true;

    };

    selector = selector || '#form';

    var ok   = true;

    var to_check = $(selector + ' [data-validate]').toArray();

    for (var to_check_idx in to_check)

      if (!validate_field(to_check[to_check_idx]))

        return false;

    return true;

  };