public Medicine Find(int key)
{
IDatabase db = new MSSqlDatabase();
db.Connect();
db.BeginTransaction();
DbCommand command = db.CreateCommand(sqlSELECT);
command.Parameters.Add(db.CreateParameter("@id", "int"));
command.Parameters["@id"].Value = key;
DbDataReader reader = db.Select(command);
Dictionary<int, Medicine> medicines = this.Read(reader, db);
reader.Close();
db.EndTransaction();
db.Close();
if (medicines.Count == 0)
return null;
else
return medicines.Values.ToList()[0];
}
public void Insert(string p_id, ExaminationType e)
{
IDatabase db = new MSSqlDatabase();
db.Connect();
DbCommand command = db.CreateCommand(sqlINSERT);
PrepareCommand(db, command, e);
e.Id = db.ExecuteScalar(command);
db.Close();
}
public void InsertRequest(string p_id, Request r)
{
SampleRequest er = (SampleRequest)r;
IDatabase db = new MSSqlDatabase();
db.Connect();
DbCommand command = db.CreateCommand(sqlINSERT);
PrepareCommand(db, command, er);
er.Id = db.ExecuteScalar(command);
db.Close();
}
public void Delete(ExaminationType e)
{
IDatabase db = new MSSqlDatabase();
db.Connect();
DbCommand command = db.CreateCommand(sqlDELETE);
command.Parameters.Add(db.CreateParameter("@id", "int"));
command.Parameters["@id"].Value = e.Id;
db.ExecuteNonQuery(command);
db.Close();
}
public void DeleteRequest(Request r)
{
SampleRequest er = (SampleRequest)r;
IDatabase db = new MSSqlDatabase();
db.Connect();
DbCommand command = db.CreateCommand(sqlDELETE);
command.Parameters.Add(db.CreateParameter("@id", "int"));
command.Parameters["@id"].Value = er.Id;
db.ExecuteNonQuery(command);
db.Close();
}
public List<ExaminationType> SelectAll()
{
IDatabase db = new MSSqlDatabase();
db.Connect();
DbCommand command = db.CreateCommand(sqlSELECT);
DbDataReader reader = db.Select(command);
List<ExaminationType> e = this.Read(reader, db);
reader.Close();
db.Close();
return e;
}
public ExaminationType Find(int id)
{
IDatabase db = new MSSqlDatabase();
db.Connect();
DbCommand command = db.CreateCommand(sqlFIND);
DbDataReader reader = db.Select(command);
ExaminationType e = this.Read(reader, db)[0];
reader.Close();
db.Close();
return e;
}
public List<Request> SelectRequests(string p_id)
{
IDatabase db = new MSSqlDatabase();
db.Connect();
DbCommand command = db.CreateCommand(sqlSELECT);
command.Parameters.Add(db.CreateParameter("@id", "char", p_id.Length));
command.Parameters["@id"].Value = p_id;
DbDataReader reader = db.Select(command);
List<Request> p = this.Read(reader);
reader.Close();
db.Close();
return p;
}
public Dictionary<int, Medicine> LoadAsDict()
{
IDatabase db = new MSSqlDatabase();
db.Connect();
db.BeginTransaction();
DbCommand command = db.CreateCommand(sqlSELECTALL);
DbDataReader reader = db.Select(command);
Dictionary<int, Medicine> medicines = this.Read(reader, db);
reader.Close();
db.EndTransaction();
db.Close();
return medicines;
}
public void DeleteRequest(Request r)
{
Prescription er = (Prescription)r;
IDatabase db = new MSSqlDatabase();
db.Connect();
db.BeginTransaction();
this.DeleteMedicines(er);
DbCommand command = db.CreateCommand(sqlDELETE);
command.Parameters.Add(db.CreateParameter("@id", "int"));
command.Parameters["@id"].Value = er.Id;
db.ExecuteNonQuery(command);
db.EndTransaction();
db.Close();
}
public void UpdateRequest(Request r)
{
ExaminationRequest er = (ExaminationRequest)r;
IDatabase db = new MSSqlDatabase();
db.Connect();
DbCommand command = db.CreateCommand(sqlUPDATE);
PrepareCommand(db, command, er);
command.Parameters.Add(db.CreateParameter("@id", "int"));
command.Parameters["@id"].Value = er.Id;
db.ExecuteNonQuery(command);
db.Close();
}
public void InsertRequest(string p_id, Request r)
{
Prescription er = (Prescription)r;
if (er.Medicines.Count == 0)
{
throw new ApplicationException(ErrorMessages.Messages["REQ_P_medicines"]);
}
IDatabase db = new MSSqlDatabase();
db.Connect();
db.BeginTransaction();
DbCommand command = db.CreateCommand(sqlINSERT);
PrepareCommand(db, command, er, p_id);
er.Id = db.ExecuteScalar(command);
int added = this.InsertMedicines(er, db);
db.EndTransaction();
if (added != er.Medicines.Count)
{
db.Rollback();
}
db.Close();
}
private void DeleteMedicines(Prescription p)
{
IDatabase db = new MSSqlDatabase();
db.Connect();
DbCommand command = db.CreateCommand(sqlDELETEMEDICINES);
command.Parameters.Add(db.CreateParameter("@id", "int"));
command.Parameters["@id"].Value = p.Id;
db.ExecuteNonQuery(command);
db.Close();
}
public void UpdateRequest(Request r)
{
Prescription er = (Prescription)r;
IDatabase db = new MSSqlDatabase();
db.Connect();
db.BeginTransaction();
DbCommand command = db.CreateCommand(sqlUPDATE);
command.Parameters.Add(db.CreateParameter("@date", "datetime"));
command.Parameters["@date"].Value = er.Created;
command.Parameters.Add(db.CreateParameter("@id", "int"));
command.Parameters["@id"].Value = er.Id;
db.ExecuteNonQuery(command);
this.DeleteMedicines(er);
int added = this.InsertMedicines(er, db);
db.EndTransaction();
if (added != er.Medicines.Count)
{
db.Rollback();
}
db.Close();
}