/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(Model.orders model)
{
StringBuilder strSql = new StringBuilder();
StringBuilder str1 = new StringBuilder();
//利用反射获得属性的所有公共属性
PropertyInfo[] pros = model.GetType().GetProperties();
List <SqlParameter> paras = new List <SqlParameter>();
strSql.Append("update " + databaseprefix + "orders set ");
foreach (PropertyInfo pi in pros)
{
//如果不是主键则追加sql字符串
if (!pi.Name.Equals("id") && !typeof(System.Collections.IList).IsAssignableFrom(pi.PropertyType))
{
//判断属性值是否为空
if (pi.GetValue(model, null) != null)
{
str1.Append(pi.Name + "=@" + pi.Name + ","); //声明参数
paras.Add(new SqlParameter("@" + pi.Name, pi.GetValue(model, null))); //对参数赋值
}
}
}
strSql.Append(str1.ToString().Trim(','));
strSql.Append(" where id=@id");
paras.Add(new SqlParameter("@id", model.id));
return(DbHelperSQL.ExecuteSql(strSql.ToString(), paras.ToArray()) > 0);
}
/// <summary>
/// 根据订单号返回一个实体
/// </summary>
public Model.orders GetModel(string order_no)
{
StringBuilder strSql = new StringBuilder();
StringBuilder str1 = new StringBuilder();
Model.orders model = new Model.orders();
//利用反射获得属性的所有公共属性
PropertyInfo[] pros = model.GetType().GetProperties();
foreach (PropertyInfo p in pros)
{
//拼接字段，忽略List<T>
if (!typeof(System.Collections.IList).IsAssignableFrom(p.PropertyType))
{
str1.Append(p.Name + ",");//拼接字段
}
}
strSql.Append("select top 1 " + str1.ToString().Trim(',') + " from " + databaseprefix + "orders");
strSql.Append(" where order_no=@order_no");
SqlParameter[] parameters =
{
new SqlParameter("@order_no", SqlDbType.NVarChar, 100)
};
parameters[0].Value = order_no;
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public Model.orders GetModel(int id)
{
StringBuilder strSql = new StringBuilder();
StringBuilder str1 = new StringBuilder();
Model.orders model = new Model.orders();
//利用反射获得属性的所有公共属性
PropertyInfo[] pros = model.GetType().GetProperties();
foreach (PropertyInfo p in pros)
{
//拼接字段，忽略List<T>
if (!typeof(System.Collections.IList).IsAssignableFrom(p.PropertyType))
{
str1.Append(p.Name + ",");//拼接字段
}
}
strSql.Append("select top 1 " + str1.ToString().Trim(','));
strSql.Append(" from " + databaseprefix + "orders");
strSql.Append(" where id=@id");
MySqlParameter[] parameters =
{
new MySqlParameter("@id", MySqlDbType.Int32, 4)
};
parameters[0].Value = id;
DataTable dt = DbHelperMySql.Query(strSql.ToString(), parameters).Tables[0];
if (dt.Rows.Count > 0)
{
return(DataRowToModel(dt.Rows[0]));
}
else
{
return(null);
}
}
/// <summary>
/// 将对象转换实体
/// </summary>
public Model.orders DataRowToModel(DataRow row)
{
Model.orders model = new Model.orders();
if (row != null)
{
#region 主表信息======================
//利用反射获得属性的所有公共属性
Type modelType = model.GetType();
for (int i = 0; i < row.Table.Columns.Count; i++)
{
//查找实体是否存在列表相同的公共属性
PropertyInfo proInfo = modelType.GetProperty(row.Table.Columns[i].ColumnName);
if (proInfo != null && row[i] != DBNull.Value)
{
proInfo.SetValue(model, row[i], null);//用索引值设置属性值
}
}
#endregion
#region 子表信息======================
StringBuilder strSql1 = new StringBuilder();
strSql1.Append("select * from " + databaseprefix + "order_goods");
strSql1.Append(" where order_id=@id");
SqlParameter[] parameters1 =
{
new SqlParameter("@id", SqlDbType.Int, 4)
};
parameters1[0].Value = model.id;
DataTable dt1 = DbHelperSQL.Query(strSql1.ToString(), parameters1).Tables[0];
if (dt1.Rows.Count > 0)
{
int rowsCount = dt1.Rows.Count;
List <Model.order_goods> models = new List <Model.order_goods>();
Model.order_goods modelt;
for (int n = 0; n < rowsCount; n++)
{
modelt = new Model.order_goods();
Type modeltType = modelt.GetType();
for (int i = 0; i < dt1.Rows[n].Table.Columns.Count; i++)
{
PropertyInfo proInfo = modeltType.GetProperty(dt1.Rows[n].Table.Columns[i].ColumnName);
if (proInfo != null && dt1.Rows[n][i] != DBNull.Value)
{
proInfo.SetValue(modelt, dt1.Rows[n][i], null);
}
}
models.Add(modelt);
}
model.order_goods = models;
}
#endregion
}
return(model);
}
/// <summary>
/// 增加一条数据
/// </summary>
public int Add(Model.orders model)
{
using (SqlConnection conn = new SqlConnection(DbHelperSQL.ConnectionString))
{
conn.Open();//打开数据连接
using (SqlTransaction trans = conn.BeginTransaction())
{
try
{
#region 主表信息==========================
StringBuilder strSql = new StringBuilder();
StringBuilder str1 = new StringBuilder(); //数据字段
StringBuilder str2 = new StringBuilder(); //数据参数
//利用反射获得属性的所有公共属性
PropertyInfo[] pros = model.GetType().GetProperties();
List <SqlParameter> paras = new List <SqlParameter>();
strSql.Append("insert into " + databaseprefix + "orders(");
foreach (PropertyInfo pi in pros)
{
//如果不是主键则追加sql字符串
if (!pi.Name.Equals("id") && !typeof(System.Collections.IList).IsAssignableFrom(pi.PropertyType))
{
//判断属性值是否为空
if (pi.GetValue(model, null) != null)
{
str1.Append(pi.Name + ","); //拼接字段
str2.Append("@" + pi.Name + ","); //声明参数
paras.Add(new SqlParameter("@" + pi.Name, pi.GetValue(model, null))); //对参数赋值
}
}
}
strSql.Append(str1.ToString().Trim(','));
strSql.Append(") values (");
strSql.Append(str2.ToString().Trim(','));
strSql.Append(") ");
strSql.Append(";select @@IDENTITY;");
object obj = DbHelperSQL.GetSingle(conn, trans, strSql.ToString(), paras.ToArray());//带事务
model.id = Convert.ToInt32(obj);
#endregion
#region 订单商品列表======================
if (model.order_goods != null)
{
StringBuilder strSql2; //SQL字符串
StringBuilder strSql3;
StringBuilder strSql4;
StringBuilder str21; //数据库字段
StringBuilder str22; //声明参数
foreach (Model.order_goods modelt in model.order_goods)
{
strSql2 = new StringBuilder();
str21 = new StringBuilder();
str22 = new StringBuilder();
PropertyInfo[] pros2 = modelt.GetType().GetProperties();
List <SqlParameter> paras2 = new List <SqlParameter>();
strSql2.Append("insert into " + databaseprefix + "order_goods(");
foreach (PropertyInfo pi in pros2)
{
if (!pi.Name.Equals("id"))
{
if (pi.GetValue(modelt, null) != null)
{
str21.Append(pi.Name + ",");
str22.Append("@" + pi.Name + ",");
if (pi.Name.Equals("order_id"))
{
paras2.Add(new SqlParameter("@" + pi.Name, model.id));//将刚插入的父ID赋值
}
else
{
paras2.Add(new SqlParameter("@" + pi.Name, pi.GetValue(modelt, null)));
}
}
}
}
strSql2.Append(str21.ToString().Trim(','));
strSql2.Append(") values (");
strSql2.Append(str22.ToString().Trim(','));
strSql2.Append(") ");
DbHelperSQL.ExecuteSql(conn, trans, strSql2.ToString(), paras2.ToArray());
//扣减商品库存
string channelName = new DAL.site_channel(databaseprefix).GetChannelName(modelt.channel_id);//查询频道的名称
strSql4 = new StringBuilder();
strSql4.Append("update " + databaseprefix + DTKeys.TABLE_CHANNEL_ARTICLE + channelName + " set ");
strSql4.Append("stock_quantity=stock_quantity-@stock_quantity where id=@article_id");
SqlParameter[] parameters4 =
{
new SqlParameter("@stock_quantity", SqlDbType.Int, 4),
new SqlParameter("@article_id", SqlDbType.Int, 4)
};
parameters4[0].Value = modelt.quantity;
parameters4[1].Value = modelt.article_id;
DbHelperSQL.ExecuteSql(conn, trans, strSql4.ToString(), parameters4);
}
}
#endregion
trans.Commit(); //提交事务
}
catch
{
trans.Rollback(); //回滚事务
return(0);
}
}
}
return(model.id);
}