angkataneditaction.java

sistem information for universitas

package angkatan.action;
import angkatan.form.AngkatanEditForm;
import dao.AngkatanDAO;
import dao.ObjectDAO;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import model.Angkatan;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.actions.DispatchAction;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForward;
public class AngkatanEditAction extends DispatchAction {
    private final static String EDIT="edit";
    private final static String UPDATE="update";
    private final static String DELETE="delete";
    public ActionForward preEdit(ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        return mapping.findForward(EDIT);
    }
    public ActionForward edit(ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        Angkatan angkatan=new AngkatanDAO().loadAngkatan(Long.parseLong(request.getParameter("id")));
        AngkatanEditForm f=(AngkatanEditForm)form;
        f.setId(angkatan.getId());
        f.setOldNama(angkatan.getNama());
        f.setNama(angkatan.getNama());
        return mapping.findForward(EDIT);
    }
    public ActionForward update(ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        ActionForward forward=null;
        AngkatanEditForm f=(AngkatanEditForm)form;
        ActionErrors errors=new ActionErrors();
        errors=f.validate(mapping,request);
        if(!errors.isEmpty()) {
            saveErrors(request,errors);
            forward=new ActionForward(mapping.getInput());
            return forward;
        }
        if(!f.getOldNama().equalsIgnoreCase(f.getNama())) {
            if(new AngkatanDAO().namaIsUsed(f.getNama())) {
                errors.add(ActionErrors.GLOBAL_ERROR,new ActionError("AngkatanEditForm.nama.used"));
                saveErrors(request,errors);
                forward=new ActionForward(mapping.getInput());
                return forward;
            }
        }
        Angkatan angkatan=new AngkatanDAO().loadAngkatan(f.getId());
        angkatan.setNama(f.getNama());
        int result=new ObjectDAO().update(angkatan);
        if(result>0) {
            forward=mapping.findForward(UPDATE);
        } else {
            errors.add(ActionErrors.GLOBAL_ERROR,new ActionError("AngkatanEditForm.fail"));
            saveErrors(request,errors);
            forward=new ActionForward(mapping.getInput());
        }
        return forward;
    }
    public ActionForward delete(ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        Angkatan angkatan=new AngkatanDAO().loadAngkatan(Long.parseLong(request.getParameter("id")));
        new ObjectDAO().delete(angkatan);
        return mapping.findForward(DELETE);
    }
}