angular bootstrap validation

bootstrap-validation-directive.js

angular.module('bootstrap.validation', [])
    /*
       If you want errors to show up after submit is hit then your submit action needs to
       set your form's controller's .submitted value to true
     */

    /* example of a custom validation */
    .directive('dateValidation', function(){
        return{
            restrict: 'A',
            require: 'ngModel',
            link: function(scope, elem, attrs, ngModel ){
                function validate(value) {
                   ngModel.$setValidity('date', /[\d]{2}-.*-[\d]{4}/.test(value))
                }
                scope.$watch( function(){
                    return ngModel.$viewValue
                }, validate)
            }
        }
    })

    /* Error Messages for default error types
     /  TODO: complete list and add a way to append custom error types as well as override defaults*/
    .constant('errorMessages', {
        'required': 'is required',
        'date': 'is invalid',
        'minlength': 'is too short',
        'maxlength': 'is too long'
    })

    .directive("bootstrapError", [ '$parse', 'errorMessages' ,function($parse, errorMessages){
        return {
            restrict: 'EA',
            template: "<div class='help-block' ng-repeat='(errorKey, errorValue) in errors' ng-hide='bootstrapValid'>"+
                      "<small ng-show='errorValue'>{{ errorMessages[errorKey] }}</small>"+
                      "</div>",
            replace: true,
            require: '^form',
            scope: {},
            link: function(scope, element, attrs, formCtrl){
                var formGroup = element.parent()
                var inputElement = formGroup[0].querySelector('input[name], select[name], textarea[name]')
                var inputCtrl = formCtrl[inputElement.name]
                var bootstrapValid = function() {
                    return inputCtrl.$valid || (inputCtrl.$pristine && !formCtrl.submitted)
                }
                scope.errors = inputCtrl.$error
                scope.errorMessages = errorMessages
                scope.$watch(bootstrapValid, function(){
                    scope.bootstrapValid = bootstrapValid()
                })
            }
        }
    }])

    .directive("bootstrapValidate", function(){
        return {
            restrict: 'A',
            require: '^form',
            link: function(scope, element, attrs, formCtrl){
                var inputElement = element[0].querySelector('input[name], select[name], textarea[name]')
                var inputCtrl = formCtrl[inputElement.name]
                var bootstrapValid = function() {
                    return inputCtrl.$valid || (inputCtrl.$pristine && !formCtrl.submitted)
                }
                scope.$watch(bootstrapValid, function(){
                    if (!bootstrapValid()){
                        element.addClass('has-error')
                    } else {
                        element.removeClass('has-error')
                    }
                })
            }
        }
    })