具有Form和$ setPristine的Angular 1.5组件

Question

I'm trying to use a form within a component in Angular 1.5

I have the form working, in that I have model binding and can get to the data on submit. So I'm 90% of where I want to be, what's missing is being able to reset the form correctly using $setPristine.

I've attempted a couple of approaches the first was passing in the form as an argument to the reset function.

form.html

<form name="$ctrl.userForm">
  ...
  <input class="btn btn-default" type="button" ng-click="$ctrl.reset($ctrl.userForm)" value="Reset" />
</form>

form.component.js

ctrl.reset = function(userForm) {
    ctrl.user = {};
    userForm.$setPristine // Cannot read property '$setPristine' of undefined
};

Full code in Plnkr

I also tried declaring $ctrl.userForm as an empty object $onInit, but that didn't seem to work either. With the $setPristine line removed the reset works in clearing the forms data but not it's state from an angular perspective.

Any ideas on what I'm missing?

Answer 1

From your plunkr you have the entire component declared bellow.

function formController() {
  var ctrl = this;
  ...

  ctrl.reset = function(userForm) {
    ctrl.user = {};
    userForm.$setPristine
  };

  ctrl.reset();
}

The error is originated from this line ctrl.reset(); where you call the method without sending the argument userForm . Also, you are using $setPristine in the wrong way and you don't have to pass the form as an argument either.

I sugest you to use the form declared on your controller like so:

angular
  .module('application')
  .component('mkForm', {
    templateUrl: 'form.html',
    controller: formController
  });

function formController() {
  var ctrl = this;
  ctrl.master = {};

  ctrl.update = function(user) {
    ctrl.master = angular.copy(user);
  };

  ctrl.reset = function() {
    ctrl.user = {};
    ctrl.userForm.$setPristine();
  };
}

Note: you don't have to call ctrl.reset(); because the pristine state is the default state.