The document outlines functionalities for managing dish categories in a restaurant menu application, including adding, setting, and deleting dish categories. It describes how to handle category input, validation for dish details, and interactions with category entities. Additionally, it details the user interface components involved in displaying and editing restaurant details, such as email, website, and address fields.

1. Miscellaneous Features - Part I

2. Categories
✦We first need to load the categories which we do in
the dish list form together with the dish loop
© Codename One 2017 all rights reserved
Menu menu = Restaurant.getInstance().menu.get();
if(menu.dishes.size() == 0) {
for(PropertyBusinessObject d : AppStorage.getInstance().fetchDishes()) {
Dish dsh = (Dish)d;
menu.dishes.add(dsh);
if(!menu.categories.asList().contains(dsh.category.get())) {
menu.categories.add(dsh.category.get());
}
}
}

3. Adding/Setting a Category
✦In the dish edit form we can set the category with a
completion list
© Codename One 2017 all rights reserved
String[] cats = new String[Restaurant.getInstance().menu.get().categories.size()];
Restaurant.getInstance().menu.get().categories.asList().toArray(cats);
AutoCompleteTextField category = new AutoCompleteTextField(cats);
if(!Restaurant.getInstance().menu.get().categories.asList().contains(category.getText())) {
Restaurant.getInstance().menu.get().categories.add(category.getText());
}
d.category.set(category.getText());
✦When we handle the OK event we can just add the
category automatically if it’s missing

4. CategoryEntity ce = null;
for(CategoryEntity current : e.getCategories()) {
if(current.getName().equals(d.getCategory())) {
ce = current;
break;
}
}
if(ce == null && d.getCategory() != null) {
ce = new CategoryEntity(d.getCategory());
categoryRepository.save(ce);
}
CategoryEntity oe = de.getCategory();
de.setCategory(ce);
dishRepository.save(de);
if(d.getId() == null) {
Set<DishEntity> dishes = new HashSet<>(e.getDishes());
dishes.add(de);
e.setDishes(dishes);
restaurantRepository.save(e);
}
if(oe != null) {
cullCategory(e, oe);
}
Server - DishService Put Dish

5. private void cullCategory(RestaurantEntity e, CategoryEntity ce) {
for(DishEntity de : e.getDishes()) {
if(ce.equals(de.getCategory())) {
return;
}
}
categoryRepository.delete(ce);
}
@RequestMapping(method = RequestMethod.DELETE)
public @ResponseBody String delete(@RequestBody(required = true) Dish dsh) throws IOException {
RestaurantEntity e = restaurantRepository.findBySecret(dsh.getSecret());
for(DishEntity d : e.getDishes()) {
if(d.getId().equals(dsh.getId())) {
HashSet<DishEntity> de = new HashSet<>(e.getDishes());
de.remove(d);
e.setDishes(de);
e.setDishListUpdateTimestamp(System.currentTimeMillis());
restaurantRepository.save(e);
d.setDeleteTime(System.currentTimeMillis());
if(d.getCategory() != null) {
CategoryEntity ce = d.getCategory();
d.setCategory(null);
dishRepository.save(d);
cullCategory(e, ce);
} else {
dishRepository.save(d);
}
Server - cullCategory

6. Validator val = new Validator();
val.addConstraint(category,
new LengthConstraint(1, "Category is required"));
val.addConstraint(price,
new NumericConstraint(true, 0, 1000000,
"Price must be a positive number"));
val.addSubmitButtons(ok);
Validation

7. Label price = new Label(Restaurant.getInstance().formatCurrency(d.price.get()),
"PriceBadge");
d.price.addChangeListener(pl ->
price.setText(Restaurant.getInstance().formatCurrency(d.price.get())));
Label title = new Label(d.name.get(), “DishName");
d.name.addChangeListener(pl -> title.setText(d.name.get()));
Label description = new Label(d.description.get(), "DishDescription");
d.description.addChangeListener(pl -> description.setText(d.description.get()));
Container titleAndDescription = BoxLayout.encloseY(title, description);
titleAndDescription.setUIID("BlackGradient");
Container cnt = LayeredLayout.encloseIn(sb,
BorderLayout.south(titleAndDescription),
FlowLayout.encloseRight(price)
);
DishListForm
UIID
Foreground white
background 3f51b5
Transparency 200
Alignment right
padding 1mm
margin 0
Margin top 4mm

8. public class DetailsForm extends BaseNavigationForm {
private Builder bld = new Builder();
public DetailsForm(AppSettings app) {
super(app, BoxLayout.y());
TextField emailField = addTextAndLabel(
"E-mail - will receive purchases from the generated app", "", TextField.EMAILADDR);
emailField.addActionListener(e -> {
app.restaurantEmail.set(emailField.getText());
AppStorage.getInstance().update(app);
bld.updateRestaurantSettings(app);
});
TextField urlField = addTextAndLabel("Website URL", "", TextField.URL);
urlField.addActionListener(e -> {
Restaurant.getInstance().website.set(urlField.getText());
bld.updateRestaurantSettings(app);
});
MultiButton address = new MultiButton("Address & Location");
if(Restaurant.getInstance().navigationAddress.get() != null &&
Restaurant.getInstance().navigationAddress.get().length() > 0) {
address.setTextLine2(Restaurant.getInstance().navigationAddress.get());
} else {
address.setTextLine2("...");
}
add(address);
address.addActionListener(e -> new AddressForm().show());
DetailsForm

9. public class DetailsForm extends BaseNavigationForm {
private Builder bld = new Builder();
public DetailsForm(AppSettings app) {
super(app, BoxLayout.y());
TextField emailField = addTextAndLabel(
"E-mail - will receive purchases from the generated app", "", TextField.EMAILADDR);
emailField.addActionListener(e -> {
app.restaurantEmail.set(emailField.getText());
AppStorage.getInstance().update(app);
bld.updateRestaurantSettings(app);
});
TextField urlField = addTextAndLabel("Website URL", "", TextField.URL);
urlField.addActionListener(e -> {
Restaurant.getInstance().website.set(urlField.getText());
bld.updateRestaurantSettings(app);
});
MultiButton address = new MultiButton("Address & Location");
if(Restaurant.getInstance().navigationAddress.get() != null &&
Restaurant.getInstance().navigationAddress.get().length() > 0) {
address.setTextLine2(Restaurant.getInstance().navigationAddress.get());
} else {
address.setTextLine2("...");
}
add(address);
address.addActionListener(e -> new AddressForm().show());
DetailsForm

10. public class DetailsForm extends BaseNavigationForm {
private Builder bld = new Builder();
public DetailsForm(AppSettings app) {
super(app, BoxLayout.y());
TextField emailField = addTextAndLabel(
"E-mail - will receive purchases from the generated app", "", TextField.EMAILADDR);
emailField.addActionListener(e -> {
app.restaurantEmail.set(emailField.getText());
AppStorage.getInstance().update(app);
bld.updateRestaurantSettings(app);
});
TextField urlField = addTextAndLabel("Website URL", "", TextField.URL);
urlField.addActionListener(e -> {
Restaurant.getInstance().website.set(urlField.getText());
bld.updateRestaurantSettings(app);
});
MultiButton address = new MultiButton("Address & Location");
if(Restaurant.getInstance().navigationAddress.get() != null &&
Restaurant.getInstance().navigationAddress.get().length() > 0) {
address.setTextLine2(Restaurant.getInstance().navigationAddress.get());
} else {
address.setTextLine2("...");
}
add(address);
address.addActionListener(e -> new AddressForm().show());
DetailsForm

11. MultiButton styles = new MultiButton("Colors & Fonts");
styles.setTextLine2("...");
add(styles);
styles.addActionListener(e -> new StyleForm().show());
MultiButton about = new MultiButton("About Page");
styles.setTextLine2("...");
add(about);
styles.addActionListener(e -> new AboutRestaurantForm().show());
}
private TextField addTextAndLabel(String label, String value) {
TextField tf = new TextField(value);
tf.setHint(label);
add(new Label(label, "TextFieldLabel")).
add(tf);
return tf;
}
DetailsForm