/**
* The contents of this file are subject to the OpenMRS Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://license.openmrs.org
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* Copyright (C) OpenMRS, LLC. All Rights Reserved.
*/
package org.openmrs.web.controller.encounter;
import java.util.List;
import java.util.Vector;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.openmrs.Location;
import org.openmrs.api.APIException;
import org.openmrs.api.LocationService;
import org.openmrs.api.context.Context;
import org.openmrs.web.WebConstants;
import org.springframework.beans.propertyeditors.CustomNumberEditor;
import org.springframework.context.support.MessageSourceAccessor;
import org.springframework.dao.DataIntegrityViolationException;
import org.springframework.validation.BindException;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.SimpleFormController;
import org.springframework.web.servlet.view.RedirectView;
public class LocationListController extends SimpleFormController {
/** Logger for this class and subclasses */
protected final Log log = LogFactory.getLog(getClass());
/**
* Allows for Integers to be used as values in input tags. Normally, only strings and lists are
* expected
*
* @see org.springframework.web.servlet.mvc.BaseCommandController#initBinder(javax.servlet.http.HttpServletRequest,
* org.springframework.web.bind.ServletRequestDataBinder)
*/
protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) throws Exception {
super.initBinder(request, binder);
binder.registerCustomEditor(java.lang.Integer.class, new CustomNumberEditor(java.lang.Integer.class, true));
}
/**
* The onSubmit function receives the form/command object that was modified by the input form
* and saves it to the db
*
* @see org.springframework.web.servlet.mvc.SimpleFormController#onSubmit(javax.servlet.http.HttpServletRequest,
* javax.servlet.http.HttpServletResponse, java.lang.Object,
* org.springframework.validation.BindException)
*/
protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object obj,
BindException errors) throws Exception {
HttpSession httpSession = request.getSession();
String view = getFormView();
if (Context.isAuthenticated()) {
String success = "";
String error = "";
MessageSourceAccessor msa = getMessageSourceAccessor();
String[] locationList = request.getParameterValues("locationId");
if (locationList != null) {
LocationService ls = Context.getLocationService();
String deleted = msa.getMessage("general.deleted");
String notDeleted = msa.getMessage("Location.cannot.delete");
for (String p : locationList) {
//TODO convenience method deleteLocation(Integer) ??
try {
ls.purgeLocation(ls.getLocation(Integer.valueOf(p)));
if (!success.equals(""))
success += "<br/>";
success += p + " " + deleted;
}
catch (DataIntegrityViolationException e) {
error = handleLocationIntegrityException(e, error, notDeleted);
}
catch (APIException e) {
error = handleLocationIntegrityException(e, error, notDeleted);
}
}
} else
error = msa.getMessage("Location.select");
view = getSuccessView();
if (!success.equals(""))
httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, success);
if (!error.equals(""))
httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, error);
}
return new ModelAndView(new RedirectView(view));
}
/**
* Logs a location delete data integrity violation exception and returns a user friedly message
* of the problem that occured.
*
* @param e the exception.
* @param error the error message.
* @param notDeleted the not deleted error message.
* @return the formatted error message.
*/
private String handleLocationIntegrityException(Exception e, String error, String notDeleted) {
log.warn("Error deleting location", e);
if (!error.equals(""))
error += "<br/>";
error += notDeleted;
return error;
}
/**
* This is called prior to displaying a form for the first time. It tells Spring the
* form/command object to load into the request
*
* @see org.springframework.web.servlet.mvc.AbstractFormController#formBackingObject(javax.servlet.http.HttpServletRequest)
*/
protected Object formBackingObject(HttpServletRequest request) throws ServletException {
//default empty Object
List<Location> locationList = new Vector<Location>();
//only fill the Object is the user has authenticated properly
if (Context.isAuthenticated()) {
LocationService ls = Context.getLocationService();
locationList = ls.getAllLocations();
}
return locationList;
}
}