@Test
public void testPaging() {
JPA.bootstrap(path());
int total = 15;
JPA.transaction(
() -> {
for (int i = 0; i < total; i++) {
Book book = JPA.insert(new Book("b" + i));
notNull(book.getId());
}
});
JPA.transaction(
() -> {
eq(JPA.getAllEntities().size(), total);
eq(JPA.count(Book.class), total);
eq(JPA.of(Book.class).all().size(), total);
List<Book> first3 = JPA.of(Book.class).page(0, 3);
eq(first3.size(), 3);
eq(Do.map(first3).to(Book::getTitle), U.list("b0", "b1", "b2"));
List<Book> next5 = JPA.of(Book.class).page(3, 5);
eq(Do.map(next5).to(Book::getTitle), U.list("b3", "b4", "b5", "b6", "b7"));
List<Book> last2 = JPA.of(Book.class).page(13, 2);
eq(Do.map(last2).to(Book::getTitle), U.list("b13", "b14"));
});
}
public static void main(String[] args) {
Map<String, String> cfg = U.map("title", "App", "user", "u1", "theme", "x");
On.get("/cfg").json(cfg);
PageMenu menu = PageMenu.from(U.map("Home", "/", "Groups", "/group"));
On.defaultWrap((data, next) -> next.invoke(x -> page(x).menu(menu).title(cfg.get("title"))));
List<Btn> letters = Flow.chars('a', 'z').map(c -> btn(c).linkTo("/find?p=" + c)).toList();
On.page("/")
.gui("p", p -> U.list(letters, grid(cfg).keyView(k -> a(k).href("/edit?key=" + k))));
On.page("/group")
.gui(
"x",
x -> {
return Do.map(Do.group(cfg).by((k, v) -> k.charAt(0)))
.toList((k, v) -> U.list(h3(k), grid(v)));
});
On.page("/find")
.gui("p", p -> U.list(letters, grid(Find.allOf(cfg).where((k, v) -> k.startsWith(p)))));
Btn ok = btn("Update").onClick(() -> Log.info("Updated", "cfg", cfg));
On.page("/edit").gui("key", key -> edit(cfg, key).buttons(ok, btn("Back").linkTo("/")));
Runnable replicate = () -> REST.get("http://localhost:8888/cfg", Object.class, U::print);
Jobs.scheduleAtFixedRate(replicate, 3, 3, TimeUnit.SECONDS);
}