private MySqlCommand PrepeareCommand(string procedureName)
{
Database db = new Database();
MySqlCommand command = null;
using (MySqlConnection con = db.OpenConnection())
{
command = new MySqlCommand(procedureName, con);
command.CommandType = System.Data.CommandType.StoredProcedure;
MySqlCommandBuilder.DeriveParameters(command);
}
Type objectType = typeof(T);
PropertyInfo[] objectProps = objectType.GetProperties();
if (objectProps == null)
{
return(null);
}
foreach (PropertyInfo prop in objectProps)
{
object[] fieldAttribs = prop.GetCustomAttributes(typeof(ObjectPropertyAttribute), true);
if (fieldAttribs == null || fieldAttribs.Length == 0)
{
continue;
}
ObjectPropertyAttribute fieldAttrib = (ObjectPropertyAttribute)fieldAttribs[0];
if (command.Parameters.Contains("@" + fieldAttrib.ParameterName))
{
command.Parameters["@" + fieldAttrib.ParameterName].Value = prop.GetValue(this, null);
}
}
return(command);
}
public virtual void Save()
{
Type objectType = typeof(T);
object[] objectBindingattribs = objectType.GetCustomAttributes(typeof(ObjectBindingAttribute), true);
if (objectBindingattribs == null)
{
return;
}
ObjectBindingAttribute objectBindingAttrib = (ObjectBindingAttribute)objectBindingattribs[0];
try
{
if (this.State == ObjectState.Existing)
{
MySqlCommand updateCommand = PrepeareCommand(objectBindingAttrib.UpdateStoredProcedure);
//if (updateCommand.Parameters.Contains("@pVrijemeModifikacije"))
// updateCommand.Parameters["@pVrijemeModifikacije"].Value = DateTime.Now;
updateCommand.Connection.Open();
updateCommand.ExecuteNonQuery();
if ((int)updateCommand.Parameters["@pError"].Value == -1)
{
throw new SaveFailedException(String.Format("Someone has changed data already."));
}
if (updateCommand.Parameters.Contains("@pVrijemeModifikacije"))
{
this.VrijemeModificiranja = DateTime.Parse(updateCommand.Parameters["@pVrijemeModifikacije"].Value.ToString());
}
updateCommand.Connection.Close();
}
else if (this.State == ObjectState.New)
{
MySqlCommand insertCommand = PrepeareCommand(objectBindingAttrib.InsertStoredProcedure);
insertCommand.Connection.Open();
insertCommand.ExecuteNonQuery();
insertCommand.Connection.Close();
PropertyInfo prop = objectType.GetProperty("ID");
object[] fieldAttribs = prop.GetCustomAttributes(typeof(ObjectPropertyAttribute), true);
if (fieldAttribs == null || fieldAttribs.Length == 0)
{
throw new ApplicationException("Field binding attribute on " + prop.Name + " is missing.");
}
ObjectPropertyAttribute fieldAttrib = (ObjectPropertyAttribute)fieldAttribs[0];
_id = (int)insertCommand.Parameters["@" + fieldAttrib.ParameterName].Value;
if (insertCommand.Parameters.Contains("@pVrijemeKreiranja"))
{
this.VrijemeKreiranja = DateTime.Parse(insertCommand.Parameters["@pVrijemeKreiranja"].Value.ToString());
}
this.State = ObjectState.Existing;
}
}
catch (System.Exception ex)
{
Logging.Log.Create("Error in the ObjectBase Save method.", Logging.LogEntryLevel.Critical, ex);
throw;
//throw new SaveFailedException(String.Format("Error while trying to save data for object:{0} of state:{1}",
// objectType.Name, this.State.ToString()), ex);
}
}
public static T CreateObject <T>(MySql.Data.MySqlClient.MySqlDataReader dr)
{
T newObject = default(T);
if (dr == null)
{
return(newObject);
}
try
{
newObject = Activator.CreateInstance <T>();
Type newObjectType = typeof(T);
PropertyInfo[] newObjectProperties = newObjectType.GetProperties();
foreach (PropertyInfo property in newObjectProperties)
{
if (property.Name == "State")
{
property.SetValue(newObject, ObjectState.Existing, null);
}
object[] attribs = property.GetCustomAttributes(typeof(ObjectPropertyAttribute), true);
if (attribs == null || attribs.Length != 1)
{
continue;
}
ObjectPropertyAttribute attrib = attribs[0] as ObjectPropertyAttribute;
if (attrib == null)
{
continue;
}
try
{
if (property.CanWrite && !dr.IsDBNull(dr.GetOrdinal(attrib.FieldName)))
{
if (typeof(System.Char) == property.PropertyType)
{
Char ch = ' ';
if (!String.IsNullOrEmpty(dr[attrib.FieldName].ToString()))
{
ch = Char.Parse(dr[attrib.FieldName].ToString().Substring(0, 1));
}
property.SetValue(newObject, ch, null);
}
else
{
property.SetValue(newObject, dr[attrib.FieldName], null);
}
}
}
catch (System.Exception ex)
{
Logging.Log.Create(String.Format("Nemoguce je setovati {0} polje na objektu {1}", attrib.FieldName, newObjectType.Name),
Logging.LogEntryLevel.Critical, ex);
}
}
}
catch (System.Exception ex)
{
Logging.Log.Create("Greska unutar Factory.CreateObject methode.",
Logging.LogEntryLevel.Critical, ex);
}
return(newObject);
}
