/// <summary>
/// DataTable转换为list
/// </summary>
/// <param name="dt"></param>
/// <returns></returns>
protected static List <BookRole> DataTableToList(DataTable dt)
{
List <BookRole> Ms = new List <BookRole>();
for (int i = 0; i < dt.Rows.Count; i++)
{
BookRole M = new BookRole();
M.Id = dt.Rows[i]["id"].ToInt64();
M.BookID = dt.Rows[i]["BookID"].ToInt32();
M.RoleName = dt.Rows[i]["RoleName"].ToString();
M.Intro = dt.Rows[i]["Intro"].ToString();
Ms.Add(M);
}
return(Ms);
}
/// <summary>
/// 根据条件语句取得第一个实体
/// </summary>
/// <param name="m_where">条件语句，不包含“where”</param>
/// <returns></returns>
public static BookRole Find(string m_where)
{
IDbHelper Sql = GetHelper();
BookRole M = new BookRole();
DbDataReader Rs = Sql.ExecuteReader(CommandType.Text, "select [id],[BookID],[RoleName],[Intro] from [BookRole] where " + m_where, true);
if (!Rs.Read())
{
M.Id = long.MinValue;
}
else
{
M.Id = Rs["id"].ToInt64();
M.BookID = Rs["BookID"].ToInt32();
M.RoleName = Rs["RoleName"].ToString();
M.Intro = Rs["Intro"].ToString();
}
Rs.Close();
Rs = null;
return(M);
}
/// <summary>
/// 将修改过的实体修改到数据库
/// </summary>
/// <param name="M">赋值后的实体</param>
/// <returns></returns>
public static int Update(BookRole M)
{
IDbHelper Sql = GetHelper();
StringBuilder sb = new StringBuilder();
sb.Append("update [BookRole] set ");
sb.Append("[BookID]=" + M.BookID.ToS());
sb.Append(",");
sb.Append("[RoleName]=N'" + M.RoleName + "'");
sb.Append(",");
sb.Append("[Intro]=N'" + M.Intro + "'");
sb.Append(" where Id='" + M.Id + "'");
sb.Append("");
if (DataBase.CmsDbType == DataBase.DbType.SqlServer)
{
sb.Append(";select @@ROWCOUNT");
}
if (DataBase.CmsDbType == DataBase.DbType.SQLite)
{
sb.Append(";select 0");
}
if (DataBase.CmsDbType == DataBase.DbType.MySql)
{
sb.Append(";SELECT ROW_COUNT()");
}
if (DataBase.CmsDbType == DataBase.DbType.Access)
{
sb.Append(";select 0");
}
if (DataBase.CmsDbType == DataBase.DbType.Oracle)
{
sb.Append(";select SQL%ROWCOUNT");
}
return(Sql.ExecuteScalar(CommandType.Text, sb.ToString()).ToInt32());
}
/// <summary>
/// 将数据插入表
/// </summary>
/// <param name="M">赋值后的实体</param>
/// <returns></returns>
public static void Insert(BookRole M)
{
IDbHelper Sql = GetHelper();
StringBuilder sb = new StringBuilder();
sb.Append("insert into [BookRole]([BookID],[RoleName],[Intro]) values(");
sb.Append("'" + M.BookID + "'");
sb.Append(",");
sb.Append("N'" + M.RoleName + "'");
sb.Append(",");
sb.Append("N'" + M.Intro + "'");
sb.Append(")");
if (DataBase.CmsDbType == DataBase.DbType.SqlServer)
{
sb.Append(";select @@Identity");
}
if (DataBase.CmsDbType == DataBase.DbType.SQLite)
{
sb.Append(";select last_insert_rowid()");
}
if (DataBase.CmsDbType == DataBase.DbType.MySql)
{
sb.Append(";select LAST_INSERT_ID()");
}
if (DataBase.CmsDbType == DataBase.DbType.Access)
{
sb.Append(";select max(id) from BookRole");
}
if (DataBase.CmsDbType == DataBase.DbType.Oracle)
{
sb.Append(";select LAST_INSERT_ID()");
}
M.Id = Sql.ExecuteScalar(CommandType.Text, sb.ToString()).ToInt32();
}
public static BookRole CreateBookRole(long id)
{
BookRole bookRole = new BookRole();
bookRole.id = id;
return bookRole;
}
public void AddToBookRole(BookRole bookRole)
{
base.AddObject("BookRole", bookRole);
}
