/// <summary>
/// 得到一个对象实体
/// </summary>
public Model.article_goods GetModel(int id)
{
StringBuilder strSql = new StringBuilder();
StringBuilder str1 = new StringBuilder();
Model.article_goods model = new Model.article_goods();
//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 (!p.Name.Equals("group_prices"))
{
str1.Append(p.Name + ",");
}
}
strSql.Append("select top 1 " + str1.ToString().Trim(','));
strSql.Append(" from " + databaseprefix + "article_goods");
strSql.Append(" where id=@id");
SqlParameter[] parameters =
{
new SqlParameter("@id", SqlDbType.Int, 4)
};
parameters[0].Value = id;
DataTable dt = DbHelperSQL.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.article_goods DataRowToModel(DataRow row)
{
Model.article_goods model = new Model.article_goods();
if (row != null)
{
//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
}
}
}
return(model);
}
/// <summary>
/// 增加一条数据
/// </summary>
public void Add(SqlConnection conn, SqlTransaction trans, Model.article_goods model, int channel_id, int article_id)
{
#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 + "article_goods(");
foreach (PropertyInfo pi in pros)
{
//如果不是主键则追加sql字符串
if (!pi.Name.Equals("id") && !pi.Name.Equals("group_prices"))
{
//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
switch (pi.Name)
{
case "channel_id":
paras.Add(new SqlParameter("@" + pi.Name, channel_id));
break;
case "article_id":
paras.Add(new SqlParameter("@" + pi.Name, article_id));
break;
default:
paras.Add(new SqlParameter("@" + pi.Name, pi.GetValue(model, null))); //对参数赋值
break;
}
}
}
}
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());
model.id = Convert.ToInt32(obj);
#endregion
#region 自定义会员组价格==================
if (model.group_prices != null)
{
StringBuilder strSql2; //SQL字符串
StringBuilder str21; //数据库字段
StringBuilder str22; //声明参数
foreach (Model.user_group_price modelt in model.group_prices)
{
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 + "user_group_price(");
foreach (PropertyInfo pi in pros2)
{
if (!pi.Name.Equals("id"))
{
if (pi.GetValue(modelt, null) != null)
{
str21.Append(pi.Name + ",");
str22.Append("@" + pi.Name + ",");
switch (pi.Name)
{
case "channel_id":
paras2.Add(new SqlParameter("@" + pi.Name, channel_id));
break;
case "article_id":
paras2.Add(new SqlParameter("@" + pi.Name, article_id));
break;
case "goods_id":
paras2.Add(new SqlParameter("@" + pi.Name, model.id)); //将刚插入的父ID赋值
break;
default:
paras2.Add(new SqlParameter("@" + pi.Name, pi.GetValue(modelt, null)));
break;
}
}
}
}
strSql2.Append(str21.ToString().Trim(','));
strSql2.Append(") values (");
strSql2.Append(str22.ToString().Trim(','));
strSql.Append(")");
DbHelperSQL.ExecuteSql(conn, trans, strSql2.ToString(), paras2.ToArray());
}
}
#endregion
}
/// <summary>
/// 获得数据列表
/// </summary>
public List <Model.article_goods> GetList(int channel_id, int article_id)
{
List <Model.article_goods> modelList = new List <Model.article_goods>();
StringBuilder strSql = new StringBuilder();
strSql.Append("select * FROM " + databaseprefix + "article_goods");
strSql.Append(" where channel_id=" + channel_id + " and article_id=" + article_id);
DataTable dt = DbHelperSQL.Query(strSql.ToString()).Tables[0];
if (dt.Rows.Count > 0)
{
Model.article_goods model;
for (int n = 0; n < dt.Rows.Count; n++)
{
#region 主表数据========================
model = new Model.article_goods();
//利用反射获得属性的所有公共属性
Type modelType = model.GetType();
for (int i = 0; i < dt.Rows[n].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(dt.Rows[n].Table.Columns[i].ColumnName);
if (proInfo != null && dt.Rows[n][i] != DBNull.Value)
{
proInfo.SetValue(model, dt.Rows[n][i], null);//用索引值设置属性值
}
}
#endregion
#region 用户组价格数据==================
StringBuilder strSql2 = new StringBuilder();
strSql2.Append("select * FROM " + databaseprefix + "user_group_price");
strSql2.Append(" where goods_id=" + model.id);
DataTable dt2 = DbHelperSQL.Query(strSql2.ToString()).Tables[0];
if (dt2.Rows.Count > 0)
{
List <Model.user_group_price> ls = new List <Model.user_group_price>();
Model.user_group_price gpModel;
for (int j = 0; j < dt2.Rows.Count; j++)
{
gpModel = new Model.user_group_price();
//利用反射获得属性的所有公共属性
Type gpType = gpModel.GetType();
for (int i = 0; i < dt2.Rows[j].Table.Columns.Count; i++)
{
//查找实体是否存在列表相同的公共属性
PropertyInfo proInfo = gpType.GetProperty(dt2.Rows[j].Table.Columns[i].ColumnName);
if (proInfo != null && dt.Rows[j][i] != DBNull.Value)
{
proInfo.SetValue(gpModel, dt2.Rows[j][i], null);//用索引值设置属性值
}
}
ls.Add(gpModel);
}
model.group_prices = ls;
}
#endregion
modelList.Add(model);
}
}
return(modelList);
}