/// <summary>增加一条数据
///
/// </summary>
public int Add(Model.EmailList model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into EmailList(");
strSql.Append("EmailAddress, CreateDate, Remark )");
strSql.Append(" values (");
strSql.Append("@EmailAddress, @CreateDate, @Remark )");
SQLiteHelper h = new SQLiteHelper();
h.CreateCommand(strSql.ToString());
if (model.EmailAddress == null)
{
h.AddParameter("@EmailAddress", DBNull.Value);
}
else
{
h.AddParameter("@EmailAddress", model.EmailAddress);
}
if (model.CreateDate == null)
{
h.AddParameter("@CreateDate", DBNull.Value);
}
else
{
h.AddParameter("@CreateDate", model.CreateDate);
}
if (model.Remark == null)
{
h.AddParameter("@Remark", DBNull.Value);
}
else
{
h.AddParameter("@Remark", model.Remark);
}
h.ExecuteNonQuery();
const string sql2 = "select max(id) from EmailList";
h.CreateCommand(sql2);
int result;
string obj = h.ExecuteScalar();
if (!int.TryParse(obj, out result))
{
return(0);
}
return(result);
}
/// <summary>对象实体绑定数据
///
/// </summary>
public Model.EmailList ReaderBind(IDataReader dataReader)
{
Model.EmailList model = new Model.EmailList();
var ojb = dataReader["id"];
if (ojb != null && ojb != DBNull.Value)
{
model.Id = int.Parse(ojb.ToString());
}
model.EmailAddress = dataReader["EmailAddress"].ToString();
model.CreateDate = dataReader["CreateDate"].ToString();
model.Remark = dataReader["Remark"].ToString();
return(model);
}
/// <summary>得到一个对象实体
///
/// </summary>
public Model.EmailList GetModel(int id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select * from EmailList ");
strSql.Append(" where id=@id ");
SQLiteHelper h = new SQLiteHelper();
h.CreateCommand(strSql.ToString());
h.AddParameter("@id", id);
Model.EmailList model = null;
using (IDataReader dataReader = h.ExecuteReader())
{
if (dataReader.Read())
{
model = ReaderBind(dataReader);
}
h.CloseConn();
}
return(model);
}
/// <summary>更新一条数据
///
/// </summary>
public bool Update(Model.EmailList model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update EmailList set ");
strSql.Append("EmailAddress=@EmailAddress, CreateDate=@CreateDate, Remark=@Remark ");
strSql.Append(" where id=@id ");
SQLiteHelper h = new SQLiteHelper();
h.CreateCommand(strSql.ToString());
if (model.EmailAddress == null)
{
h.AddParameter("@EmailAddress", DBNull.Value);
}
else
{
h.AddParameter("@EmailAddress", model.EmailAddress);
}
if (model.CreateDate == null)
{
h.AddParameter("@CreateDate", DBNull.Value);
}
else
{
h.AddParameter("@CreateDate", model.CreateDate);
}
if (model.Remark == null)
{
h.AddParameter("@Remark", DBNull.Value);
}
else
{
h.AddParameter("@Remark", model.Remark);
}
h.AddParameter("@id", model.Id);
return(h.ExecuteNonQuery());
}
/// <summary>根据条件得到一个对象实体
///
/// </summary>
public Model.EmailList GetModelByCond(string cond)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select * from EmailList ");
if (!string.IsNullOrEmpty(cond))
{
strSql.Append(" where " + cond);
}
strSql.Append(" limit 1");
SQLiteHelper h = new SQLiteHelper();
h.CreateCommand(strSql.ToString());
Model.EmailList model = null;
using (IDataReader dataReader = h.ExecuteReader())
{
if (dataReader.Read())
{
model = ReaderBind(dataReader);
}
h.CloseConn();
}
return(model);
}
