//Erstellt den SQL Befehl für das Erstellen einer neuen Ausleihe und setzt ihn in DbCommand command ein
protected void SqlNewVideoLoan(Loan video, DbCommand dbCommand)
{
if (video.ID != 0)
{
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
dbCommand.CommandText = $"UPDATE VideoTable " +
$"SET " +
$"Borrower = ?, ReturnDate = ? " +
$"WHERE ID = ?;";
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "Borrower", video.Borrower);
AData.AddParameter(dbCommand, "ReturnDate", video.ReturnDate);
AData.AddParameter(dbCommand, "ID", video.ID);
}
else
{
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
dbCommand.CommandText = $"UPDATE VideoTable " +
$"SET " +
$"Borrower = ?, ReturnDate = ? " +
$"WHERE Title = ?" +
$"And Borrower =?";
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "Borrower", video.Borrower);
AData.AddParameter(dbCommand, "ReturnDate", video.ReturnDate);
AData.AddParameter(dbCommand, "Title", video.Title);
AData.AddParameter(dbCommand, "NewBorrower", "");
}
}
//Gibt eine Liste der Videos anhand einer VideoDtoSearch
public void ReadVideos(VideoDtoSearch videoSearch, out IList <Loan> videos)
{
videos = new List <Loan>();
AData.Open(_dbConnection);
this.SqlSelectVideo(videoSearch, _dbCommand);
DbDataReader dbDataReader = _dbCommand.ExecuteReader();
if (dbDataReader.HasRows)
{
int nColumns = dbDataReader.FieldCount;
while (dbDataReader.Read())
{
Loan video = new Loan()
{
ID = dbDataReader.GetInt32(0),
Title = dbDataReader.GetString(1),
Borrower = dbDataReader.GetString(2),
ReturnDate = dbDataReader.GetDateTime(3)
};
videos.Add(video);
}
}
if (!dbDataReader.IsClosed)
{
dbDataReader.Close();
}
AData.Close(_dbConnection);
}
//Gibt eine Liste der Rückgabedaten anhand eines strignes zurück
//Fals ein leerer string kommt werden alle Rückgabedaten ausgegeben
public void ReadReturnDate(string ReturnDate, out IList <DateTime> ListReturnDate)
{
ListReturnDate = new List <DateTime>();
AData.Open(_dbConnection);
DateTime dtRetunrDate = DateTime.MinValue;
if (ReturnDate == "")
{
dtRetunrDate = DateTime.MinValue;
}
else
{
dtRetunrDate = Util.ParseDate(ReturnDate, DateTime.MinValue);
}
this.SqlGetReturnDate(dtRetunrDate, _dbCommand);
DbDataReader dbDataReader = _dbCommand.ExecuteReader();
if (dbDataReader.HasRows)
{
while (dbDataReader.Read())
{
DateTime nReturnDate = DateTime.MinValue;
if (dbDataReader.GetDateTime(0) != Util.ParseDate("01.01.2001", DateTime.MinValue))
{
ListReturnDate.Add(dbDataReader.GetDateTime(0));
}
}
}
if (!dbDataReader.IsClosed)
{
dbDataReader.Close();
}
AData.Close(_dbConnection);
}
//Gibt eine Liste der Preise anhand eines strignes zurück
//Fals ein leerer string kommt werden alle Preise ausgegeben
public void ReadBorrowingRate(string BorrowingRate, out IList <double> ListBorrowingRate)
{
ListBorrowingRate = new List <double>();
AData.Open(_dbConnection);
double doubleBorrowingRate = 0.0;
double.TryParse(BorrowingRate, out doubleBorrowingRate);
this.SqlGetBorrowingRate(doubleBorrowingRate, _dbCommand);
DbDataReader dbDataReader = _dbCommand.ExecuteReader();
if (dbDataReader.HasRows)
{
while (dbDataReader.Read())
{
decimal d = 0;
d = dbDataReader.GetDecimal(0);
doubleBorrowingRate = (double)d;
ListBorrowingRate.Add(doubleBorrowingRate);
}
}
if (!dbDataReader.IsClosed)
{
dbDataReader.Close();
}
AData.Close(_dbConnection);
}
//Gibt eine Liste der Ausleiher anhand eines strignes zurück
//Fals ein leerer string kommt werden alle Ausleiher ausgegeben
public void ReadBorrower(string borrower, out IList <string> ListBorrower)
{
ListBorrower = new List <string>();
AData.Open(_dbConnection);
this.SqlGetBorrower(borrower, _dbCommand);
DbDataReader dbDataReader = _dbCommand.ExecuteReader();
if (dbDataReader.HasRows)
{
while (dbDataReader.Read())
{
string bBorrower = "";
bBorrower = dbDataReader[0].ToString();
if (bBorrower != "")
{
ListBorrower.Add(dbDataReader[0].ToString());
}
}
}
if (!dbDataReader.IsClosed)
{
dbDataReader.Close();
}
AData.Close(_dbConnection);
}
//Initialisiert eine Verbindung
public void Init(DbProviderFactory dbProviderFactory, DbConnection dbConnection, DbCommand dbCommand)
{
_dbProviderFactory = dbProviderFactory;
_dbConnection = dbConnection;
_dbCommand = dbCommand;
_dbDataAdapterVideoTable = AData.CreateDbDataAdapter(_dbProviderFactory, _dbConnection,
"SELECT * FROM VideoTable;");
}
//Verändert ein vorhandenes Video in der Datenbank
public int UpdateLoan(Loan video)
{
this.SqlUpdateVideo(video, _dbCommand);
AData.Open(_dbConnection);
int nRecords = _dbCommand.ExecuteNonQuery();
AData.Close(_dbConnection);
return(nRecords);
}
//Entfernt eine Ausleihe in dem ein eintrag verändert wird
public int DeleteLoan(Loan loan)
{
this.SqlReturnVideoLoan(loan, _dbCommand);
AData.Open(_dbConnection);
int nRecords = _dbCommand.ExecuteNonQuery();
AData.Close(_dbConnection);
return(nRecords);
}
//Legt eine Neue Ausleihe an in dem ein eintrag verändert wird
public int InsertVideoTable(VideoDtoLoan videoLoan)
{
this.SqlNewVideoLoan(videoLoan, _dbCommand);
AData.Open(_dbConnection);
int nRecords = _dbCommand.ExecuteNonQuery();
AData.Close(_dbConnection);
return(nRecords);
}
//Verändert eine Ausleihe
public int UpdateVideoTable(VideoDtoLoan videoLoan, DateTime returnDate)
{
videoLoan.ReturnDate = returnDate;
this.SqlUptadeVideoLoan(videoLoan, _dbCommand);
AData.Open(_dbConnection);
int nRecords = _dbCommand.ExecuteNonQuery();
AData.Close(_dbConnection);
return(nRecords);
}
//Erstellt den SQL Befehl für das Hinzufügen eines neus Eintrages und setzt ihn in DbCommand command ein
protected virtual void SqlInsertVideo(Loan video, DbCommand dbCommand)
{
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
dbCommand.CommandText = $"INSERT INTO VideoTable" +
$" ( Title, Genre, BorrowingRate, ReleaseYear, RunningTime, Rated,Borrower,ReturnDate )" +
$" VALUES " +
$" ( @title, @genre, @borrowingRate, @releaseYear, @runningTime, @rated, @borrower, @returnDate);";
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "@title", video.Title);
AData.AddParameter(dbCommand, "@borrower", video.Borrower);
AData.AddParameter(dbCommand, "@returnDate", video.ReturnDate);
}
//Erstellt den SQL Befehl für das Anpassen eines Eintrages und setzt ihn in DbCommand command ein
protected void SqlUpdateVideo(Loan video, DbCommand dbCommand)
{
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
dbCommand.CommandText = $"UPDATE VideoTable " +
$"SET " +
$"Borrower = ?, ReturnDate = ? " +
$"WHERE ID = ?;";
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "Borrower", video.Borrower);
AData.AddParameter(dbCommand, "ReturnDate", video.ReturnDate);
AData.AddParameter(dbCommand, "ID", video.ID);
}
//Gibt eine Daten Tabelle der Videos anhand einer VideoDtoSearch
public void ReadVideos(VideoDtoSearch videoSearch, out DataTable dataTableVideos)
{
dataTableVideos = new DataTable("Videos");
AData.Open(_dbConnection);
DbDataAdapter dbDataAdapter = _dbProviderFactory.CreateDataAdapter();
this.SqlSelectVideo(videoSearch, _dbCommand);
_dbCommand.Connection = _dbConnection;
dbDataAdapter.SelectCommand = _dbCommand;
int records = dbDataAdapter.Fill(dataTableVideos);
AData.Close(_dbConnection);
}
//Erstellt den SQL Befehl für das zurückgeben einer Ausleihe und setzt ihn in DbCommand command ein
protected void SqlReturnVideoLoan(Loan video, DbCommand dbCommand)
{
if (video.ID != 0)
{
video.Borrower = "";
video.ReturnDate = DateTime.MinValue;
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
dbCommand.CommandText = $"UPDATE VideoTable " +
$"SET " +
$"Borrower = ?, ReturnDate = ? " +
$"WHERE ID = ?;";
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "Borrower", video.Borrower);
AData.AddParameter(dbCommand, "ReturnDate", video.ReturnDate);
AData.AddParameter(dbCommand, "ID", video.ID);
}
else
{
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
dbCommand.CommandText = @"UPDATE VideoTable ";
dbCommand.CommandText += "SET ";
dbCommand.CommandText += "Borrower = @NewBorrower, ";
AData.AddParameter(dbCommand, "@NewBorrower", "");
dbCommand.CommandText += "ReturnDate = @newReturnDate ";
AData.AddParameter(dbCommand, "@newReturnDate", DateTime.MinValue);
if (video.Title != "" && video.Title != null)
{
dbCommand.CommandText += $"WHERE Title = @Title";
AData.AddParameter(dbCommand, "@Title", video.Title);
dbCommand.CommandText += $" And Borrower = @OldBorrower";
AData.AddParameter(dbCommand, "@OldBorrower", video.Borrower);
}
else
{
dbCommand.CommandText += $"WHERE Borrower = @OldBorrower";
AData.AddParameter(dbCommand, "@OldBorrower", video.Borrower);
}
if (video.ReturnDate != DateTime.MinValue)
{
dbCommand.CommandText += $" AND ReturnDate >= @DateNow";
AData.AddParameter(dbCommand, "@DateNow", DateTime.MinValue.ToString("G"));
dbCommand.CommandText += $" AND ReturnDate <= @TillReturnDate;";
AData.AddParameter(dbCommand, "@TillReturnDate", video.ReturnDate.ToString("G"));
}
}
}
//Erstellt den SQL Befehl für das Ausgeben der Altersfreigaben und setzt ihn in DbCommand command ein
protected virtual void SqlGetRated(int rated, DbCommand dbCommand)
{
if (rated != 0)
{
dbCommand.CommandText =
@"SELECT DISTINCT Rated FROM VideoTable WHERE Rated = @Rated ORDER BY Rated";
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "@Rated", rated);
}
else
{
dbCommand.CommandText =
@"SELECT DISTINCT Rated FROM VideoTable ORDER BY Rated";
dbCommand.CommandType = CommandType.Text;
}
}
//Erstellt den SQL Befehl für das Ausgeben der Preise und setzt ihn in DbCommand command ein
protected virtual void SqlGetBorrowingRate(double borrowingRate, DbCommand dbCommand)
{
if (borrowingRate != 0.0)
{
dbCommand.CommandText =
@"SELECT DISTINCT BorrowingRate FROM VideoTable WHERE BorrowingRate = @BorrowingRate ORDER BY BorrowingRate";
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "@BorrowingRate", borrowingRate);
}
else
{
dbCommand.CommandText =
@"SELECT DISTINCT BorrowingRate FROM VideoTable ORDER BY BorrowingRate";
dbCommand.CommandType = CommandType.Text;
}
}
//Erstellt den SQL Befehl für das Ausgeben der IDs und setzt ihn in DbCommand command ein
protected virtual void SqlGetID(int ID, DbCommand dbCommand)
{
if (ID != 0)
{
dbCommand.CommandText =
@"SELECT DISTINCT ID FROM VideoTable WHERE ID = @ID ORDER BY ID";
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "@ID", ID);
}
else
{
dbCommand.CommandText =
@"SELECT DISTINCT ID FROM VideoTable ORDER BY ID";
dbCommand.CommandType = CommandType.Text;
}
}
//Erstellt den SQL Befehl für das Ausgeben der Laufzeiten und setzt ihn in DbCommand command ein
protected virtual void SqlGetRunningTime(int runningTime, DbCommand dbCommand)
{
if (runningTime != 0)
{
dbCommand.CommandText =
@"SELECT DISTINCT RunningTime FROM VideoTable WHERE RunningTime = @RunningTime ORDER BY RunningTime";
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "@RunningTime", runningTime);
}
else
{
dbCommand.CommandText =
@"SELECT DISTINCT RunningTime FROM VideoTable ORDER BY RunningTime";
dbCommand.CommandType = CommandType.Text;
}
}
//Erstellt den SQL Befehl für das Ausgeben der Rückgabedaten und setzt ihn in DbCommand command ein
protected virtual void SqlGetReturnDate(DateTime returnDate, DbCommand dbCommand)
{
if (returnDate != DateTime.MinValue)
{
dbCommand.CommandText =
@"SELECT DISTINCT ReturnDate FROM VideoTable WHERE ReturnDate = @ReturnDate ORDER BY ReturnDate";
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "@ReturnDate", returnDate.ToString("G"));
}
else
{
dbCommand.CommandText =
@"SELECT DISTINCT ReturnDate FROM VideoTable ORDER BY ReturnDate";
dbCommand.CommandType = CommandType.Text;
}
}
//Erstellt den SQL Befehl für das Ausgeben der Erscheinungsjahre und setzt ihn in DbCommand command ein
protected virtual void SqlGetReleaseYear(int releaseYear, DbCommand dbCommand)
{
if (releaseYear != 0)
{
dbCommand.CommandText =
@"SELECT DISTINCT ReleaseYear FROM VideoTable WHERE ReleaseYear = @ReleaseYear ORDER BY ReleaseYear";
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "@ReleaseYear", releaseYear);
}
else
{
dbCommand.CommandText =
@"SELECT DISTINCT ReleaseYear FROM VideoTable ORDER BY ReleaseYear";
dbCommand.CommandType = CommandType.Text;
}
}
//Erstellt den SQL Befehl für das Ausgeben der Ausleiher und setzt ihn in DbCommand command ein
protected virtual void SqlGetBorrower(string borrower, DbCommand dbCommand)
{
if (borrower != "")
{
dbCommand.CommandText =
@"SELECT DISTINCT Borrower FROM VideoTable WHERE Borrower = @Borrower ORDER BY Borrower";
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "@Borrower", borrower);
}
else
{
dbCommand.CommandText =
@"SELECT DISTINCT Borrower FROM VideoTable ORDER BY Borrower";
dbCommand.CommandType = CommandType.Text;
}
}
//Erstellt den SQL Befehl für das Ausgeben der Title und setzt ihn in DbCommand command ein
protected virtual void SqlGetTitle(string title, DbCommand dbCommand)
{
if (title != "")
{
dbCommand.CommandText =
@"SELECT DISTINCT Title FROM VideoTable WHERE Title = @Title ORDER BY Title";
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "@Title", title);
}
else
{
dbCommand.CommandText =
@"SELECT DISTINCT Title FROM VideoTable ORDER BY Title";
dbCommand.CommandType = CommandType.Text;
}
}
//Erstellt den SQL Befehl für das Ausgeben der Genres und setzt ihn in DbCommand command ein
protected virtual void SqlGetGenre(string genre, DbCommand dbCommand)
{
if (genre != "")
{
dbCommand.CommandText =
@"SELECT DISTINCT Genre FROM VideoTable Genre Title = @Genre ORDER BY Genre";
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "@Genre", genre);
}
else
{
dbCommand.CommandText =
@"SELECT DISTINCT Genre FROM VideoTable ORDER BY Genre";
dbCommand.CommandType = CommandType.Text;
}
}
//Gibt eine Liste der Genres anhand eines strignes zurück
//Fals ein leerer string kommt werden alle Genres ausgegeben
public void ReadGenre(string genre, out IList <string> listGenre)
{
listGenre = new List <string>();
AData.Open(_dbConnection);
this.SqlGetGenre(genre, _dbCommand);
DbDataReader dbDataReader = _dbCommand.ExecuteReader();
if (dbDataReader.HasRows)
{
while (dbDataReader.Read())
{
listGenre.Add(dbDataReader.GetString(0));
}
}
if (!dbDataReader.IsClosed)
{
dbDataReader.Close();
}
AData.Close(_dbConnection);
}
//Gibt eine Liste der IDs anhand eines strignes zurück
//Fals ein leerer string kommt werden alle IDs ausgegeben
public void ReadID(string ID, out IList <int> ListID)
{
ListID = new List <int>();
AData.Open(_dbConnection);
int intid = 0;
Int32.TryParse(ID, out intid);
this.SqlGetID(intid, _dbCommand);
DbDataReader dbDataReader = _dbCommand.ExecuteReader();
if (dbDataReader.HasRows)
{
while (dbDataReader.Read())
{
ListID.Add(dbDataReader.GetInt32(0));
}
}
if (!dbDataReader.IsClosed)
{
dbDataReader.Close();
}
AData.Close(_dbConnection);
}
//Gibt eine Liste der Erscheinungsjahre anhand eines strignes zurück
//Fals ein leerer string kommt werden alle Erscheinungsjahre ausgegeben
public void ReadReleaseYear(string ReleaseYear, out IList <int> ListReleaseYear)
{
ListReleaseYear = new List <int>();
AData.Open(_dbConnection);
int intreleaseYear = 0;
Int32.TryParse(ReleaseYear, out intreleaseYear);
this.SqlGetReleaseYear(intreleaseYear, _dbCommand);
DbDataReader dbDataReader = _dbCommand.ExecuteReader();
if (dbDataReader.HasRows)
{
while (dbDataReader.Read())
{
ListReleaseYear.Add(dbDataReader.GetInt32(0));
}
}
if (!dbDataReader.IsClosed)
{
dbDataReader.Close();
}
AData.Close(_dbConnection);
}
//Gibt eine Liste der Laufzeiten anhand eines strignes zurück
//Fals ein leerer string kommt werden alle Rückgabedaten ausgegeben
public void ReadRunningTime(string RunningTime, out IList <int> ListRunningTime)
{
ListRunningTime = new List <int>();
AData.Open(_dbConnection);
int intrunningTime = 0;
Int32.TryParse(RunningTime, out intrunningTime);
this.SqlGetRunningTime(intrunningTime, _dbCommand);
DbDataReader dbDataReader = _dbCommand.ExecuteReader();
if (dbDataReader.HasRows)
{
while (dbDataReader.Read())
{
ListRunningTime.Add(dbDataReader.GetInt32(0));
}
}
if (!dbDataReader.IsClosed)
{
dbDataReader.Close();
}
AData.Close(_dbConnection);
}
//Erstellt den SQL Befehl für das anpassen eines Eintrages und setzt ihn in DbCommand command ein
protected void SqlUptadeVideoLoan(Loan video, DbCommand dbCommand)
{
if (video.ID != 0)
{
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
dbCommand.CommandText = $"UPDATE VideoTable " +
$"SET " +
$"ReturnDate = ? " +
$"WHERE ID = ?;";
dbCommand.Parameters.Clear();
AData.AddParameter(dbCommand, "ReturnDate", video.ReturnDate);
AData.AddParameter(dbCommand, "ID", video.ID);
}
else
{
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
dbCommand.CommandText = @"UPDATE VideoTable ";
dbCommand.CommandText += "SET ";
dbCommand.CommandText += "ReturnDate = @newReturnDate ";
AData.AddParameter(dbCommand, "@newReturnDate", video.ReturnDate);
if (video.Title != "" && video.Title != null)
{
dbCommand.CommandText += $"WHERE Title = @Title";
AData.AddParameter(dbCommand, "@Title", video.Title);
dbCommand.CommandText += $" And Borrower = @Borrower";
AData.AddParameter(dbCommand, "@Borrower", video.Borrower);
}
else
{
dbCommand.CommandText += $"WHERE Borrower = @Borrower";
AData.AddParameter(dbCommand, "@Borrower", video.Borrower);
}
}
}
internal ADataLoan(AData data)
{
_data = data;
}
//Erstellt den SQL Befehl für das Ausgeben der Videos und setzt ihn in DbCommand command ein
protected virtual void SqlSelectVideo(VideoDtoSearch videoSearch, DbCommand dbCommand)
{
dbCommand.CommandType = CommandType.Text;
dbCommand.Parameters.Clear();
dbCommand.CommandText = @"SELECT * FROM VideoTable";
if (videoSearch.ID == 0)
{
if (videoSearch.Title != "" && videoSearch.Title != null)
{
dbCommand.CommandText += " WHERE Title = @Title";
AData.AddParameter(dbCommand, "@Title", videoSearch.Title);
}
}
else
{
dbCommand.CommandText += " WHERE ID = @ID";
AData.AddParameter(dbCommand, "@ID", videoSearch.ID);
if (videoSearch.Title != "" && videoSearch.Title != null)
{
dbCommand.CommandText += " AND Title = @Title";
AData.AddParameter(dbCommand, "@Title", videoSearch.Title);
}
}
if (videoSearch.Genre != "" && videoSearch.Genre != null)
{
if (dbCommand.CommandText == "SELECT * FROM VideoTable")
{
dbCommand.CommandText += " WHERE Genre = @Genre";
AData.AddParameter(dbCommand, "@Genre", videoSearch.Genre);
}
else
{
dbCommand.CommandText += " AND Genre = @Genre";
AData.AddParameter(dbCommand, "@Genre", videoSearch.Genre);
}
}
if (videoSearch.BorrowingRate != 0.0 && videoSearch.BorrowingRate != 0)
{
if (dbCommand.CommandText == "SELECT * FROM VideoTable")
{
dbCommand.CommandText += " WHERE BorrowingRate >= @BorrowingRateMin";
AData.AddParameter(dbCommand, "@BorrowingRateMin", 0.0);
dbCommand.CommandText += " AND BorrowingRate <= @BorrowingRate";
AData.AddParameter(dbCommand, "@BorrowingRate", videoSearch.BorrowingRate);
}
else
{
dbCommand.CommandText += " AND BorrowingRate >= @BorrowingRateMin";
AData.AddParameter(dbCommand, "@BorrowingRateMin", 0.0);
dbCommand.CommandText += " AND BorrowingRate <= @BorrowingRate";
AData.AddParameter(dbCommand, "@BorrowingRate", videoSearch.BorrowingRate);
}
}
if (videoSearch.ReleaseYear != 0)
{
if (dbCommand.CommandText == "SELECT * FROM VideoTable")
{
dbCommand.CommandText += " WHERE ReleaseYear = @ReleaseYear";
AData.AddParameter(dbCommand, "@ReleaseYear", videoSearch.ReleaseYear);
}
else
{
dbCommand.CommandText += " AND ReleaseYear = @ReleaseYear";
AData.AddParameter(dbCommand, "@ReleaseYear", videoSearch.ReleaseYear);
}
}
if (videoSearch.RunningTime != 0)
{
if (dbCommand.CommandText == "SELECT * FROM VideoTable")
{
dbCommand.CommandText += " WHERE RunningTime >= @RunningTimeMin";
AData.AddParameter(dbCommand, "@RunningTimeMin", 0);
dbCommand.CommandText += " AND RunningTime <= @RunningTime";
AData.AddParameter(dbCommand, "@RunningTime", videoSearch.RunningTime);
}
else
{
dbCommand.CommandText += " AND RunningTime >= @RunningTimeMin";
AData.AddParameter(dbCommand, "@RunningTimeMin", 0);
dbCommand.CommandText += " AND RunningTime <= @RunningTime";
AData.AddParameter(dbCommand, "@RunningTime", videoSearch.RunningTime);
}
}
if (videoSearch.Rated != 1)
{
if (dbCommand.CommandText == "SELECT * FROM VideoTable")
{
dbCommand.CommandText += " WHERE Rated = @Rated";
AData.AddParameter(dbCommand, "@Rated", videoSearch.Rated);
}
else
{
dbCommand.CommandText += " AND Rated = @Rated";
AData.AddParameter(dbCommand, "@Rated", videoSearch.Rated);
}
}
if (videoSearch.Borrower != "" && videoSearch.Borrower != null)
{
if (dbCommand.CommandText == "SELECT * FROM VideoTable")
{
dbCommand.CommandText += " WHERE Borrower = @Borrower";
AData.AddParameter(dbCommand, "@Borrower", videoSearch.Borrower);
}
else
{
dbCommand.CommandText += " AND Borrower = @Borrower";
AData.AddParameter(dbCommand, "@Borrower", videoSearch.Borrower);
}
}
if (videoSearch.ReturnDate != DateTime.MinValue)
{
if (dbCommand.CommandText == "SELECT * FROM VideoTable")
{
dbCommand.CommandText += " WHERE ReturnDate >= @ReturnDateMin";
AData.AddParameter(dbCommand, "@ReturnDateMin", DateTime.MinValue);
dbCommand.CommandText += " AND ReturnDate <= @ReturnDate";
AData.AddParameter(dbCommand, "@ReturnDate", videoSearch.ReturnDate);
}
else
{
dbCommand.CommandText += " AND ReturnDate >= @ReturnDateMin";
AData.AddParameter(dbCommand, "@ReturnDateMin", DateTime.MinValue);
dbCommand.CommandText += " AND ReturnDate <= @ReturnDate";
AData.AddParameter(dbCommand, "@ReturnDate", videoSearch.ReturnDate);
}
}
dbCommand.CommandText += " ORDER BY ID;";
}