matakuliaheditaction.java

sistem information for universitas

package matakuliah.action;
import dao.FakultasDAO;
import dao.MatakuliahDAO;
import dao.ObjectDAO;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import matakuliah.form.MatakuliahEditForm;
import model.Fakultas;
import model.Matakuliah;
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 MatakuliahEditAction 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 {
        List<Fakultas> listFakultas=new FakultasDAO().getListFakultas();
        List<Matakuliah> listPrasyarat=new MatakuliahDAO().getListMatakuliah();
        request.setAttribute("listFakultas",listFakultas);
        request.setAttribute("listPrasyarat",listPrasyarat);
        request.setAttribute("id",request.getParameter("id"));
        return mapping.findForward(EDIT);
    }
    public ActionForward edit(ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        List<Fakultas> listFakultas=new FakultasDAO().getListFakultas();
        List<Matakuliah> listPrasyarat=new MatakuliahDAO().getListMatakuliah();
        request.setAttribute("listFakultas",listFakultas);
        request.setAttribute("listPrasyarat",listPrasyarat);
        request.setAttribute("id",request.getParameter("id"));
        Matakuliah matakuliah=new MatakuliahDAO().loadMatakuliah(Long.parseLong(request.getParameter("id")));
        MatakuliahEditForm f=(MatakuliahEditForm)form;
        f.setId(matakuliah.getId());
        f.setOldKode(matakuliah.getKode());
        f.setKode(matakuliah.getKode());
        f.setNama(matakuliah.getNama());
        f.setSksAkademik(matakuliah.getSksAkademik());
        f.setSksBayar(matakuliah.getSksBayar());
        f.setFakultas(matakuliah.getFakultas().getId());
        if(matakuliah.getPrasyarat()!=null) {
            f.setPrasyarat(matakuliah.getPrasyarat().getId());
        }
        return mapping.findForward(EDIT);
    }
    public ActionForward update(ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        ActionForward forward=null;
        MatakuliahEditForm f=(MatakuliahEditForm)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.getOldKode().equalsIgnoreCase(f.getKode())) {
            if(new MatakuliahDAO().kodeIsUsed(f.getKode())) {
                errors.add(ActionErrors.GLOBAL_ERROR,new ActionError("MatakuliahEditForm.kode.used"));
                saveErrors(request,errors);
                forward=new ActionForward(mapping.getInput());
                return forward;
            }
        }
        Matakuliah matakuliah=new MatakuliahDAO().loadMatakuliah(f.getId());
        matakuliah.setKode(f.getKode());
        matakuliah.setNama(f.getNama());
        matakuliah.setSksAkademik(f.getSksAkademik());
        matakuliah.setSksBayar(f.getSksBayar());
        matakuliah.setFakultas(new FakultasDAO().loadFakultas(f.getFakultas()));
        if(f.getPrasyarat()!=-1) {
            matakuliah.setPrasyarat(new MatakuliahDAO().loadMatakuliah(f.getPrasyarat()));
        } else {
            matakuliah.setPrasyarat(null);
        }
        int result=new ObjectDAO().update(matakuliah);
        if(result>0) {
            forward=mapping.findForward(UPDATE);
        } else {
            errors.add(ActionErrors.GLOBAL_ERROR,new ActionError("MatakuliahEditForm.fail"));
            saveErrors(request,errors);
            forward=new ActionForward(mapping.getInput());
        }
        return forward;
    }
    public ActionForward delete(ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        Matakuliah matakuliah=new MatakuliahDAO().loadMatakuliah(Long.parseLong(request.getParameter("id")));
        new ObjectDAO().delete(matakuliah);
        return mapping.findForward(DELETE);
    }
}