///<summary>
///分页查询一个集合
///</summary>
///<param name="index">页码</param>
///<param name="size">页大小</param>
///<param name="columns">指定的列</param>
///<param name="wheres">条件匿名类</param>
///<param name="orderField">排序字段</param>
///<param name="isDesc">是否降序排序</param>
///<returns>实体集合</returns>
public IEnumerable <Dictionary <string, object> > QueryListX(int index, int size, object columns = null, object wheres = null, string orderField = "objectId", bool isDesc = true)
{
List <SqlParameter> list = null;
string where = wheres.parseWheres(out list);
orderField = string.IsNullOrEmpty(orderField) ? "objectId" : orderField;
Dictionary <string, string[]> li;
string[] clumns = new String[] { "objectId", "love", "dislove", "fav", "updatedAt", "createdAt" };
string[] cls = columns.parseColumnsX(clumns, "ItemUser", out li);
var sql = SqlHelper.GenerateQuerySql("ItemUser", li["ItemUser"], index, size, where, orderField, isDesc);
using (var reader = SqlHelper.ExecuteReader(sql, list.ToArray()))
{
if (reader.HasRows)
{
while (reader.Read())
{
Dictionary <string, object> model = SqlHelper.MapEntity(reader, cls);
if (li.ContainsKey("_User"))
{
_UserDAO _UserDAO = new _UserDAO();
model["_User"] = _UserDAO.QuerySingleByIdX((string)reader["_UserId"], li["_User"]);
}
if (li.ContainsKey("item"))
{
itemDAO itemDAO = new itemDAO();
model["item"] = itemDAO.QuerySingleByIdX((string)reader["itemId"], li["item"]);
}
yield return(model);
}
}
}
}
///<summary>
///查询单个模型实体
///</summary>
///<param name=objectId>主键</param>);
///<returns>实体</returns>);
public Dictionary <string, object> QuerySingleByIdX(string objectId, object columns)
{
Dictionary <string, string[]> li;
string[] clumns = new String[] { "objectId", "love", "dislove", "fav", "updatedAt", "createdAt" };
string[] cls = columns.parseColumnsX(clumns, "ItemUser", out li);
string sql = "SELECT TOP 1 " + string.Join(",", li["ItemUser"]) + " from ItemUser WHERE [objectId] = @objectId";
using (var reader = SqlHelper.ExecuteReader(sql, new SqlParameter("@objectId", objectId)))
{
if (reader.HasRows)
{
reader.Read();
Dictionary <string, object> model = SqlHelper.MapEntity(reader, cls);
if (li.ContainsKey("_User"))
{
_UserDAO _UserDAO = new _UserDAO();
model["_User"] = _UserDAO.QuerySingleByIdX((string)reader["_UserId"], li["_User"]);
}
if (li.ContainsKey("item"))
{
itemDAO itemDAO = new itemDAO();
model["item"] = itemDAO.QuerySingleByIdX((string)reader["itemId"], li["item"]);
}
return(model);
}
else
{
return(null);
}
}
}
///<summary>
///查询单个模型实体
///</summary>
///<param name="wheres">条件</param>
///<param name="columns">列集合</param>
///<returns>实体</returns>
public Dictionary <string, object> QuerySingleByWheresX(object wheres, object columns)
{
List <SqlParameter> list = null;
string where = wheres.parseWheres(out list);
where = string.IsNullOrEmpty(where) ? "" : " where " + where;
Dictionary <string, string[]> li;
string[] clumns = new String[] { "objectId", "love", "dislove", "fav", "updatedAt", "createdAt" };
string[] cls = columns.parseColumnsX(clumns, "ItemUser", out li);
string sql = "SELECT TOP 1 " + string.Join(",", li["ItemUser"]) + " from ItemUser" + where;
using (var reader = SqlHelper.ExecuteReader(sql, list.ToArray()))
{
if (reader.HasRows)
{
reader.Read();
Dictionary <string, object> model = SqlHelper.MapEntity(reader, cls);
if (li.ContainsKey("_User"))
{
_UserDAO _UserDAO = new _UserDAO();
model["_User"] = _UserDAO.QuerySingleByIdX((string)reader["_UserId"], li["_User"]);
}
if (li.ContainsKey("item"))
{
itemDAO itemDAO = new itemDAO();
model["item"] = itemDAO.QuerySingleByIdX((string)reader["itemId"], li["item"]);
}
return(model);
}
else
{
return(null);
}
}
}