Add comment re: cause of submit binding failure (nested forms)
import Ember from 'ember';

export default Ember.Component.extend({

  tagName: 'form',
  classNames: [ 'uni-form' ],
  classNameBindings: [ 'invalid' ],

  invalid: Ember.computed.reads('form.payload.isInvalid'),

  submitFailed: Ember.computed.alias('form.submitFailed'),
  submitWithErrors: false,

  // Manually wire what should work out of the box (and did, except when it didn't)
  // The binding fails if you have invalid markup with nested forms.
  bindSubmit: function () {
    this.$().on('submit', e => { this.submit(e); });
  }.on('didInsertElement'),

  submit: function (e) {
    if (e) e.preventDefault();

    // Blur on submit so pressing enter twice will not submit twice.
    var focusNode = this.$(':focus');
    if (focusNode) focusNode.blur();

    var model = this.get('form.payload');
    var action = this.get('action');
    if (!(model && action)) return;

    return new Ember.RSVP.Promise((resolve, reject) => {
      if (model.validate) model.validate.call(model).then(resolve, reject);
      else resolve();
    })
    .then(() => {
      action();
    })
    .catch(() => {
      if (this.get('submitWithErrors')) action();
      else this.set('form.submitFailed', true);
    });
  },

  // DEBUG_EXPORT: function () {
  //   window.parentFormView = this;
  // }.on('didInsertElement'),

});

import Ember from 'ember';

export default Ember.Component.extend({

  tagName: 'form',
  classNames: [ 'uni-form' ],
  classNameBindings: [ 'invalid' ],

  invalid: Ember.computed.reads('form.payload.isInvalid'),

  submitFailed: Ember.computed.alias('form.submitFailed'),
  submitWithErrors: false,

  // Manually wire what should work out of the box (and did, except when it didn't)
  bindSubmit: function () {
    this.$().on('submit', e => { this.submit(e); });
  }.on('didInsertElement'),

  submit: function (e) {
    if (e) e.preventDefault();

    // Blur on submit so pressing enter twice will not submit twice.
    var focusNode = this.$(':focus');
    if (focusNode) focusNode.blur();

    var model = this.get('form.payload');
    var action = this.get('action');
    if (!(model && action)) return;

    return new Ember.RSVP.Promise((resolve, reject) => {
      if (model.validate) model.validate.call(model).then(resolve, reject);
      else resolve();
    })
    .then(() => {
      action();
    })
    .catch(() => {
      if (this.get('submitWithErrors')) action();
      else this.set('form.submitFailed', true);
    });
  },

  // DEBUG_EXPORT: function () {
  //   window.parentFormView = this;
  // }.on('didInsertElement'),

});
