FriendlyEats.prototype.viewRestaurant = function()

in firestore/scripts/FriendlyEats.View.js [308:366]
43 lines of code
2 McCabe index (conditional complexity)

FriendlyEats.prototype.viewRestaurant = function(id) {
  var sectionHeaderEl;
  var that = this;

  return this.getRestaurant(id)
    .then(function(doc) {
      var data = doc.data();
      var dialog =  that.dialogs.add_review;

      data.show_add_review = function() {
        dialog.show();
      };

      sectionHeaderEl = that.renderTemplate('restaurant-header', data);
      sectionHeaderEl
        .querySelector('.rating')
        .append(that.renderRating(data.avgRating));

      sectionHeaderEl
        .querySelector('.price')
        .append(that.renderPrice(data.price));
      return doc.ref.collection('ratings').orderBy('timestamp', 'desc').get();
    })
    .then(function(ratings) {
      var mainEl;

      if (ratings.size) {
        mainEl = that.renderTemplate('main');

        ratings.forEach(function(rating) {
          var data = rating.data();
          var el = that.renderTemplate('review-card', data);
          el.querySelector('.rating').append(that.renderRating(data.rating));
          mainEl.querySelector('#cards').append(el);
        });
      } else {
        mainEl = that.renderTemplate('no-ratings', {
          add_mock_data: function() {
            that.addMockRatings(id).then(function() {
              that.rerender();
            });
          }
        });
      }

      var headerEl = that.renderTemplate('header-base', {
        hasSectionHeader: true
      });

      that.replaceElement(document.querySelector('.header'), sectionHeaderEl);
      that.replaceElement(document.querySelector('main'), mainEl);
    })
    .then(function() {
      that.router.updatePageLinks();
    })
    .catch(function(err) {
      console.warn('Error rendering page', err);
    });
};