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#7 Perfil de Personal Administrativo - Listado de empleados (Navegacion de paginas)

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This commit is contained in:
jesus.pelaez 2024-08-28 13:29:11 -04:00
parent f749146755
commit 93e42baa52
3 changed files with 51 additions and 54 deletions
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15
src/main/java/com/primefactorsolutions/service/EmployeeService.java
View File

@ -1,10 +1,11 @@
package com.primefactorsolutions.service;
import com.primefactorsolutions.model.Candidate;
import com.primefactorsolutions.model.Employee;
import com.primefactorsolutions.repositories.EmployeeRepository;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import lombok.Data;
import org.apache.commons.lang3.NotImplementedException;
import org.springframework.stereotype.Service;
import java.util.List;
@ -31,4 +32,14 @@ public class EmployeeService {
public Employee getEmployee(final UUID id) {
return null;
}
public Page<Employee> getEmployeesPaginated(int pageNo, int pageSize) {
Pageable pageable = PageRequest.of(pageNo - 1, pageSize);
return employeeRepository.findAll(pageable);
}
public boolean hasNextPage(int currentPage, int pageSize) {
Page<Employee> page = getEmployeesPaginated(currentPage, pageSize);
return page.hasNext();
}
}

77
src/main/java/com/primefactorsolutions/views/EmployeesListView.java
View File

@ -10,19 +10,14 @@ import com.vaadin.flow.component.combobox.ComboBox;
import com.vaadin.flow.component.html.H2;
import com.vaadin.flow.component.html.Main;
import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
import com.vaadin.flow.data.provider.DataProvider;
import com.vaadin.flow.data.provider.DataProviderListener;
import com.vaadin.flow.data.provider.Query;
import com.vaadin.flow.function.ValueProvider;
import com.vaadin.flow.router.PageTitle;
import com.vaadin.flow.router.Route;
import com.vaadin.flow.shared.Registration;
import com.vaadin.flow.spring.annotation.SpringComponent;
import jakarta.annotation.security.PermitAll;
import org.springframework.context.annotation.Scope;
import org.vaadin.firitin.components.grid.VGrid;
import java.util.stream.Stream;
import org.springframework.data.domain.Page;
@SpringComponent
@Scope("prototype")
@ -31,6 +26,10 @@ import java.util.stream.Stream;
@PermitAll
public class EmployeesListView extends Main {
private final EmployeeService employeeService;
private int currentPage = 1;
private final int pageSize = 5;
private final Button previous;
private final Button next;
public EmployeesListView(final EmployeeService employeeService) {
this.employeeService = employeeService;
@ -69,58 +68,34 @@ public class EmployeesListView extends Main {
});
return save;
});
grid.setDataProvider(new DataProvider<>() {
@Override
public boolean isInMemory() {
return false;
}
@Override
public int size(final Query<Employee, Object> query) {
return employeeService.getEmployees().size();
}
@Override
public Stream<Employee> fetch(final Query<Employee, Object> query) {
int limit = query.getLimit();
int pagerSize = query.getPageSize();
int page = query.getPage();
return employeeService.getEmployees().stream();
}
@Override
public void refreshItem(final Employee employee) {
// no-op
}
@Override
public void refreshAll() {
// no-op
}
@Override
public Registration addDataProviderListener(final DataProviderListener<Employee> dataProviderListener) {
return null;
this.previous = new Button("Previous");
this.previous.addClickListener((ComponentEventListener<ClickEvent<Button>>) buttonClickEvent -> {
if (currentPage > 1) {
currentPage--;
updateGrid(grid);
}
});
final Button previous = new Button("Previous");
previous.addClickListener((ComponentEventListener<ClickEvent<Button>>) buttonClickEvent -> {
// no-op
hf.add(this.previous);
this.next = new Button("Next");
this.next.addClickListener((ComponentEventListener<ClickEvent<Button>>) buttonClickEvent -> {
if (employeeService.hasNextPage(currentPage, pageSize)) {
currentPage++;
updateGrid(grid);
}
});
hf.add(previous);
final Button next = new Button("Next");
next.addClickListener((ComponentEventListener<ClickEvent<Button>>) buttonClickEvent -> {
// no-op
});
hf.add(next);
hf.add(this.next);
final Button addEmployee = new Button("Add Employee");
addEmployee.addClickListener((ComponentEventListener<ClickEvent<Button>>) buttonClickEvent -> {
this.getUI().get().navigate(EmployeeView.class, "new");
this.getUI().flatMap(ui -> ui.navigate(EmployeeView.class, "new"));
});
hf.add(addEmployee);
add(title, hl, grid, hf);
updateGrid(grid);
}
private void updateGrid(VGrid<Employee> grid) {
Page<Employee> page = employeeService.getEmployeesPaginated(currentPage, pageSize);
grid.setItems(page.getContent());
this.previous.setEnabled(currentPage > 1);
this.next.setEnabled(page.hasNext());
}
}

11
src/main/resources/data.sql
View File

@ -14,3 +14,14 @@ insert into employee (id, version, first_name, last_name, status) values ('f6ab3
insert into employee (id, version, first_name, last_name, status) values ('2e2293b1-3f9a-4f3d-abc8-32639b0a5e15', 1, 'Carlos', 'Lopez Mendoza', 'INACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('4b1c6c35-4627-4b35-b6e9-dc75c68b2c31', 1, 'Maria', 'Fernandez Villca', 'ACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('afc5c741-f70a-4394-853b-39d51b118927', 1, 'Luis', 'Gutierrez Mamani', 'ACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('b2436b82-7b9f-4f0d-9463-f2c3173a45c3', 1, 'Laura', 'Martinez Paredes', 'INACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('6e6a8a4e-9f6b-44eb-8c69-40acfdc86756', 1, 'Roberto', 'Santos Escobar', 'ACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('36b0d1c6-bdc0-4d98-94bb-08b9bce3f0d5', 1, 'Valeria', 'Morales Ochoa', 'INACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('5a1c6d80-58b3-43e3-a5a5-24b4a2d1d54a', 1, 'Jorge', 'Ramirez Tapia', 'ACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('9d6a5b2e-6d0b-4b89-8d6a-d3f3d1bfc047', 1, 'Sandra', 'Torres Huanca', 'ACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('f8b3e0c0-0d5a-4e5c-bf9d-207b9b5e8279', 1, 'Felipe', 'Quispe Huanca', 'INACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('cd80e1d0-9a08-44a6-bd63-2c63eaa003d4', 1, 'Gabriela', 'Rivas Arana', 'ACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('62d3c1b7-815e-4e96-8d7e-f8c4236bca55', 1, 'Oscar', 'Flores Quiroga', 'INACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('f20b7c5a-5a67-44f0-9ec1-4c1b8e80de05', 1, 'Marta', 'Vargas Soria', 'ACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('19b5a76e-d7b1-4b76-8b02-4d0748e85809', 1, 'Andres', 'Espinoza Chura', 'INACTIVE');
insert into employee (id, version, first_name, last_name, status) values ('5c1a7b82-832d-4f24-8377-54b77b91b6a8', 1, 'Carla', 'Villanueva Arce', 'ACTIVE');