package org.springframework.samples.petclinic.web;
import java.util.Collection;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.samples.petclinic.Clinic;
import org.springframework.samples.petclinic.Owner;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
/**
* JavaBean Form controller that is used to search for <code>Owner</code>s by
* last name.
*
* @author Juergen Hoeller
* @author Ken Krebs
* @author Arjen Poutsma
*/
@Controller
public class FindOwnersForm {
private final Clinic clinic;
@Autowired
public FindOwnersForm(Clinic clinic) {
this.clinic = clinic;
}
@InitBinder
public void setAllowedFields(WebDataBinder dataBinder) {
dataBinder.setDisallowedFields("id");
}
@RequestMapping(value = "/owners/search", method = RequestMethod.GET)
public String setupForm(Model model) {
model.addAttribute("owner", new Owner());
return "owners/search";
}
@RequestMapping(value = "/owners", method = RequestMethod.GET)
public String processSubmit(Owner owner, BindingResult result, Model model) {
// allow parameterless GET request for /owners to return all records
if (owner.getLastName() == null) {
owner.setLastName(""); // empty string signifies broadest possible search
}
// find owners by last name
Collection<Owner> results = this.clinic.findOwners(owner.getLastName());
if (results.size() < 1) {
// no owners found
result.rejectValue("lastName", "notFound", "not found");
return "owners/search";
}
if (results.size() > 1) {
// multiple owners found
model.addAttribute("selections", results);
return "owners/list";
}
else {
// 1 owner found
owner = results.iterator().next();
return "redirect:/owners/" + owner.getId();
}
}
}