sails-test/assets/js/pages/entrance/login.page.js

parasails.registerPage('login', {
  //  ╦╔╗╔╦╔╦╗╦╔═╗╦    ╔═╗╔╦╗╔═╗╔╦╗╔═╗
  //  ║║║║║ ║ ║╠═╣║    ╚═╗ ║ ╠═╣ ║ ║╣
  //  ╩╝╚╝╩ ╩ ╩╩ ╩╩═╝  ╚═╝ ╩ ╩ ╩ ╩ ╚═╝
  data: {

    // Main syncing/loading state for this page.
    syncing: false,

    // Form data
    formData: { /* … */ },

    // For tracking client-side validation errors in our form.
    // > Has property set to `true` for each invalid property in `formData`.
    formErrors: { /* … */ },

    // Server error state for the form
    cloudError: '',

  },

  //  ╦  ╦╔═╗╔═╗╔═╗╦ ╦╔═╗╦  ╔═╗
  //  ║  ║╠╣ ║╣ ║  ╚╦╝║  ║  ║╣
  //  ╩═╝╩╚  ╚═╝╚═╝ ╩ ╚═╝╩═╝╚═╝
  beforeMount: function() {
    // Attach any initial data from the server.
    _.extend(this, SAILS_LOCALS);
  },
  mounted: function() {
    this.$focus('[autofocus]');
  },

  //  ╦╔╗╔╔╦╗╔═╗╦═╗╔═╗╔═╗╔╦╗╦╔═╗╔╗╔╔═╗
  //  ║║║║ ║ ║╣ ╠╦╝╠═╣║   ║ ║║ ║║║║╚═╗
  //  ╩╝╚╝ ╩ ╚═╝╩╚═╩ ╩╚═╝ ╩ ╩╚═╝╝╚╝╚═╝
  methods: {

    // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    // Note:
    // To see what this would look like as a completely custom form, without relying on as many
    // built-in features of the <ajax-form> component, see:
    // https://github.com/sailshq/caviar/commit/512eb41c347f9bcdebc2d1bca8b15d8a0acd80f1
    // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    submittedForm: function() {

      // Redirect to the logged-in dashboard on success.
      // > (Note that we re-enable the syncing state here.  This is on purpose--
      // > to make sure the spinner stays there until the page navigation finishes.)
      this.syncing = true;
      window.location = '/';

    },

    handleParsingForm: function() {

      // Clear out any pre-existing error messages.
      this.formErrors = {};

      var argins = this.formData;

      // Validate email:
      if(!argins.emailAddress) {
        this.formErrors.emailAddress = true;
      }

      // Validate password:
      if(!argins.password) {
        this.formErrors.password = true;
      }

      // If there were any issues, they've already now been communicated to the user,
      // so simply return undefined.  (This signifies that the submission should be
      // cancelled.)
      if (Object.keys(this.formErrors).length > 0) {
        return;
      }

      return argins;
    },

  }
});