ProjetThe/ProjetTheAlone/Model/A_T_plat.cs

#region Ressources extérieures
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using ProjetTheAlone.Classes;
#endregion

namespace ProjetTheAlone.Acces
{
 /// <summary>
 /// Couche d'accès aux données (Data Access Layer)
 /// </summary>
 public class A_T_plat : ADBase
 {
  #region Constructeurs
  public A_T_plat(string sChaineConnexion)
  	: base(sChaineConnexion)
  { }
  #endregion
  public int Ajouter(string P_nom, byte[] P_img, int? ID_typePlat)
  {
   CreerCommande("AjouterT_plat");
   int res = 0;
   Commande.Parameters.Add("ID_plat", SqlDbType.Int);
   Direction("ID_plat", ParameterDirection.Output);
   if(P_nom == null) Commande.Parameters.AddWithValue("@P_nom", Convert.DBNull);
   else Commande.Parameters.AddWithValue("@P_nom", P_nom);
   if(P_img == null) Commande.Parameters.AddWithValue("@P_img", Convert.DBNull);
   else Commande.Parameters.AddWithValue("@P_img", P_img);
   if(ID_typePlat == null) Commande.Parameters.AddWithValue("@ID_typePlat", Convert.DBNull);
   else Commande.Parameters.AddWithValue("@ID_typePlat", ID_typePlat);
   Commande.Connection.Open();
   Commande.ExecuteNonQuery();
   res = int.Parse(LireParametre("ID_plat"));
   Commande.Connection.Close();
   return res;
  }
  public int Modifier(int ID_plat, string P_nom, byte[] P_img, int? ID_typePlat)
  {
   CreerCommande("ModifierT_plat");
   int res = 0;
   Commande.Parameters.AddWithValue("@ID_plat", ID_plat);
   if(P_nom == null) Commande.Parameters.AddWithValue("@P_nom", Convert.DBNull);
   else Commande.Parameters.AddWithValue("@P_nom", P_nom);
   if(P_img == null) Commande.Parameters.AddWithValue("@P_img", Convert.DBNull);
   else Commande.Parameters.AddWithValue("@P_img", P_img);
   if(ID_typePlat == null) Commande.Parameters.AddWithValue("@ID_typePlat", Convert.DBNull);
   else Commande.Parameters.AddWithValue("@ID_typePlat", ID_typePlat);
   Commande.Connection.Open();
   Commande.ExecuteNonQuery();
   Commande.Connection.Close();
   return res;
  }
  public List<C_T_plat> Lire(string Index)
  {
   CreerCommande("SelectionnerT_plat");
   Commande.Parameters.AddWithValue("@Index", Index);
   Commande.Connection.Open();
   SqlDataReader dr = Commande.ExecuteReader();
   List<C_T_plat> res = new List<C_T_plat>();
   while (dr.Read())
   {
    C_T_plat tmp = new C_T_plat();
    tmp.ID_plat = int.Parse(dr["ID_plat"].ToString());
   if(dr["P_nom"] != DBNull.Value) tmp.P_nom = (dr["P_nom"].ToString());
   if(dr["P_img"] != DBNull.Value) tmp.P_img = Encoding.ASCII.GetBytes(dr["P_img"].ToString());
   if(dr["ID_typePlat"] != DBNull.Value) tmp.ID_typePlat = int.Parse(dr["ID_typePlat"].ToString());
    res.Add(tmp);
			}
			dr.Close();
			Commande.Connection.Close();
			return res;
		}
  public C_T_plat Lire_ID(int ID_plat)
  {
   CreerCommande("SelectionnerT_plat_ID");
   Commande.Parameters.AddWithValue("@ID_plat", ID_plat);
   Commande.Connection.Open();
   SqlDataReader dr = Commande.ExecuteReader();
   C_T_plat res = new C_T_plat();
   while (dr.Read())
   {
    res.ID_plat = int.Parse(dr["ID_plat"].ToString());
   if(dr["P_nom"] != DBNull.Value) res.P_nom = (dr["P_nom"].ToString());
   if(dr["P_img"] != DBNull.Value) res.P_img = Encoding.ASCII.GetBytes(dr["P_img"].ToString());
   if(dr["ID_typePlat"] != DBNull.Value) res.ID_typePlat = int.Parse(dr["ID_typePlat"].ToString());
   }
			dr.Close();
			Commande.Connection.Close();
			return res;
		}
  public int Supprimer(int ID_plat)
  {
   CreerCommande("SupprimerT_plat");
   int res = 0;
   Commande.Parameters.AddWithValue("@ID_plat", ID_plat);
   Commande.Connection.Open();
   res = Commande.ExecuteNonQuery();
			Commande.Connection.Close();
			return res;
		}
 }
}