Source Viewer : WEB-INF/classes/org/apache/click/examples/page/EditCustomer.java

package org.apache.click.examples.page;

import javax.annotation.Resource;

import org.apache.click.Page;
import org.apache.click.control.Checkbox;
import org.apache.click.control.FieldSet;
import org.apache.click.control.Form;
import org.apache.click.control.HiddenField;
import org.apache.click.control.Submit;
import org.apache.click.control.TextField;
import org.apache.click.examples.control.InvestmentSelect;
import org.apache.click.examples.domain.Customer;
import org.apache.click.examples.service.CustomerService;
import org.apache.click.extras.control.DateField;
import org.apache.click.extras.control.DoubleField;
import org.apache.click.extras.control.EmailField;
import org.apache.click.extras.control.IntegerField;
import org.apache.click.util.Bindable;
import org.springframework.stereotype.Component;

/**
 * Provides an edit Customer Form example. The Customer business object
 * is initially passed to this Page as a request attribute.
 * <p/>
 * Note the bindable "id" and "referrer" fields have their values automatically
 * set with any identically named request parameters after the page is created.
 * These fields will be used to populate the similarly named HiddenFields
 * on GET requests. See the onGet method below.
 */
@Component
public class EditCustomer extends BorderPage {

    private static final long serialVersionUID = 1L;

    private Form form = new Form("form");
    private HiddenField referrerField = new HiddenField("referrer", String.class);
    private HiddenField idField = new HiddenField("id", Integer.class);

    // Bindable variables can automatically have their value set by request parameters
    @Bindable protected Integer id;
    @Bindable protected String referrer;

    @Resource(name="customerService")
    private CustomerService customerService;

    // Constructor -----------------------------------------------------------

    public EditCustomer() {
        addControl(form);

        form.add(referrerField);

        form.add(idField);

        FieldSet fieldSet = new FieldSet("customer");
        form.add(fieldSet);

        TextField nameField = new TextField("name", true);
        nameField.setMinLength(5);
        nameField.setFocus(true);
        fieldSet.add(nameField);

        fieldSet.add(new EmailField("email"));

        IntegerField ageField = new IntegerField("age");
        ageField.setMinValue(1);
        ageField.setMaxValue(120);
        ageField.setWidth("40px");
        fieldSet.add(ageField);

        DoubleField holdingsField = new DoubleField("holdings");
        holdingsField.setTextAlign("right");
        fieldSet.add(holdingsField);

        fieldSet.add(new InvestmentSelect("investments"));
        fieldSet.add(new DateField("dateJoined"));
        fieldSet.add(new Checkbox("active"));

        form.add(new Submit("ok", "  OK  ", this, "onOkClick"));
        form.add(new Submit("cancel", this, "onCancelClick"));
    }

    // Event Handlers ---------------------------------------------------------

    /**
     * When page is first displayed on the GET request.
     *
     * @see Page#onGet()
     */
    @Override
    public void onGet() {
        if (id != null) {
            Customer customer = customerService.getCustomerForID(id);

            if (customer != null) {
                // Copy customer data to form. The idField value will be set by
                // this call
                form.copyFrom(customer);
            }
        }

        if (referrer != null) {
            // Set HiddenField to bound referrer field
            referrerField.setValue(referrer);
        }
    }

    public boolean onOkClick() {
        if (form.isValid()) {
            Integer id = (Integer) idField.getValueObject();
            Customer customer = customerService.getCustomerForID(id);

            if (customer == null) {
                customer = new Customer();
            }
            form.copyTo(customer);

            customerService.saveCustomer(customer);

            String referrer = referrerField.getValue();
            if (referrer != null) {
                setRedirect(referrer);
            } else {
                setRedirect(HomePage.class);
            }

            return true;

        } else {
            return true;
        }
    }

    public boolean onCancelClick() {
        String referrer = referrerField.getValue();
        if (referrer != null) {
            setRedirect(referrer);
        } else {
            setRedirect(HomePage.class);
        }
        return true;
    }

}