required.coffee

required.coffee

admin.directive 'gpnRequired', ['$compile', ($compile) ->
  isEmpty = (value) ->
    angular.isUndefined(value) || value is '' || value is null || (angular.isArray(value) && value.length is 0)

  link = ($scope, $element, $attributes, $control) ->
    title    = I18n.t('js.required')
    name     = $scope.$eval($attributes.gpnRequried) || $attributes.gpnRequired
    template = "<span class = 'error' ng-show = \"form['#{name}'].$error.gpnRequired\">#{title}</span>"
    angular.element($compile(template)($scope)).insertAfter($element)

    validator = (isRequired, value) ->
      inValid = isRequired && isEmpty(value)
      $control.$setValidity('gpnRequired', !inValid)

    validate = ->
      isRequired = $scope.$eval($attributes.if || 'true')
      validator(isRequired, $control.$viewValue)

    $scope.$watch($attributes.ngModel, validate)
    if $attributes.if?
      $scope.$watch($attributes.if, validate)

  return {
    restrict: 'A'
    require: 'ngModel'
    link: link
    replace: false
  }
]