ChangeTeacherDataCmd.cs :  » Business-Application » Timetabler » OpenCTT » C# / CSharp Open Source

#region Open Course Timetabler - An application for school and university course timetabling
//
// Author:
//   Ivan urak (mailto:Ivan.Curak@fesb.hr)
//
// Copyright (c) 2007 Ivan urak, Split, Croatia
//
// http://www.openctt.org
//
//This file is part of Open Course Timetabler.
//
//Open Course Timetabler is free software;
//you can redistribute it and/or modify it under the terms of the GNU General Public License
//as published by the Free Software Foundation; either version 2 of the License,
//or (at your option) any later version.
//
//Open Course Timetabler is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
//or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
//You should have received a copy of the GNU General Public License along with
//Open Course Timetabler; if not, write to the Free Software Foundation, Inc., 51 Franklin St,
//Fifth Floor, Boston, MA  02110-1301  USA

#endregion


using System;

namespace OpenCTT{
  /// <summary>
  /// Summary description for ChangeTeacherDataCmd.
  /// </summary>
  public class ChangeTeacherDataCmd:AbstractCommand
  {
    Teacher _teacher;

    string _oldName;
    string _oldLastName;
    string _oldTitle;
    string _oldEduRank;
    string _oldExtID;

    string _newName;
    string _newLastName;
    string _newTitle;
    string _newEduRank;
    string _newExtID;

    public ChangeTeacherDataCmd(Teacher teacher,string newName,string newLastName,string newTitle, string newEduRank, string newExtID)
    {
      _teacher=teacher;

      _oldName=_teacher.getName();
      _oldLastName=_teacher.getLastName();
      _oldTitle=_teacher.getTitle();
      _oldEduRank=_teacher.getEduRank();
      _oldExtID=_teacher.ExtID;

      _newName=newName;
      _newLastName=newLastName;
      _newTitle=newTitle;
      _newEduRank=newEduRank;
      _newExtID=newExtID;
    }

    public override void doit()
    {      

      if(_newTitle!=_oldTitle)
      {
        if(!AppForm.CURR_OCTT_DOC.TeacherTitlesList.Contains(_newTitle))
        {
          AppForm.CURR_OCTT_DOC.TeacherTitlesList.Add(_newTitle);
          AppForm.CURR_OCTT_DOC.TeacherTitlesList.Sort();
        }

        if(HardConstraintChecks.checkIfTitleOfTeacherIsFreeForDelete(_teacher))
        {
          AppForm.CURR_OCTT_DOC.TeacherTitlesList.Remove(_oldTitle);
        }
      }

      if(_newEduRank!=_oldEduRank)
      {
        if(!AppForm.CURR_OCTT_DOC.TeacherEduRanksList.Contains(_newEduRank))
        {
          AppForm.CURR_OCTT_DOC.TeacherEduRanksList.Add(_newEduRank);
          AppForm.CURR_OCTT_DOC.TeacherEduRanksList.Sort();
        }

        if(HardConstraintChecks.checkIfEduRankOfTeacherIsFreeForDelete(_teacher))
        {
          AppForm.CURR_OCTT_DOC.TeacherEduRanksList.Remove(_oldEduRank);
        }
      }

      _teacher.setName(_newName);
      _teacher.setLastName(_newLastName);      
      _teacher.setTitle(_newTitle);          
      _teacher.setEduRank(_newEduRank);
      _teacher.ExtID=_newExtID;

      
      sortIt();

      AppForm.getAppForm().getTreeTabControl().SelectedIndex=1;

    }

    public override void undo()
    {

      if(_newTitle!=_oldTitle)
      {
        if(!AppForm.CURR_OCTT_DOC.TeacherTitlesList.Contains(_oldTitle))
        {
          AppForm.CURR_OCTT_DOC.TeacherTitlesList.Add(_oldTitle);
          AppForm.CURR_OCTT_DOC.TeacherTitlesList.Sort();
        }

        if(HardConstraintChecks.checkIfTitleOfTeacherIsFreeForDelete(_teacher))
        {
          AppForm.CURR_OCTT_DOC.TeacherTitlesList.Remove(_newTitle);
        }
      }

      if(_newEduRank!=_oldEduRank)
      {
        if(!AppForm.CURR_OCTT_DOC.TeacherEduRanksList.Contains(_oldEduRank))
        {
          AppForm.CURR_OCTT_DOC.TeacherEduRanksList.Add(_oldEduRank);
          AppForm.CURR_OCTT_DOC.TeacherEduRanksList.Sort();
        }

        if(HardConstraintChecks.checkIfEduRankOfTeacherIsFreeForDelete(_teacher))
        {
          AppForm.CURR_OCTT_DOC.TeacherEduRanksList.Remove(_newEduRank);
        }
      }

      _teacher.setName(_oldName);
      _teacher.setLastName(_oldLastName);      
      _teacher.setTitle(_oldTitle);          
      _teacher.setEduRank(_oldEduRank);
      _teacher.ExtID=_oldExtID;

      
      sortIt();

      AppForm.getAppForm().getTreeTabControl().SelectedIndex=1;
      
    }

    public override void redo()
    {
      doit();      
    }

    private void sortIt()
    {
      AppForm.getAppForm().getTeachersTreeView().BeginUpdate();
      AppForm.CURR_OCTT_DOC.TeachersRootNode.Nodes.Remove(_teacher);
      AppForm.CURR_OCTT_DOC.TeachersRootNode.Nodes.Add(_teacher);
      AppForm.getAppForm().getTeachersTreeView().SelectedNode=_teacher;
      AppForm.getAppForm().getTeachersTreeView().EndUpdate();
    }

  }
}