/// <summary>
/// 根据主键值读取记录。如果数据库不存在这条数据将返回null
/// </summary>
/// <param name="db">数据库操作对象</param>
/// <param name="columns">需要返回的列，不提供任何列名时默认将返回所有列</param>
public CommentShowEntity GetCommentShow(int id)
{
string sql=@"SELECT [Id],[Title],[CommentTime],[Star],[ColorSize],[CommentContent],[MemberCode],[MemberLevel],[ClientType]
FROM
dbo.[CommentShow] WITH(NOLOCK)
WHERE [Id]=@id";
DbCommand cmd = db.GetSqlStringCommand(sql);
db.AddInParameter(cmd,"@Id", DbType.Int32,id);
CommentShowEntity entity=new CommentShowEntity();
using (IDataReader reader = db.ExecuteReader(cmd))
{
if (reader.Read())
{
entity.Id=StringUtils.GetDbInt(reader["Id"]);
entity.Title=StringUtils.GetDbString(reader["Title"]);
entity.CommentTime=StringUtils.GetDbDateTime(reader["CommentTime"]);
entity.Star=StringUtils.GetDbInt(reader["Star"]);
entity.ColorSize=StringUtils.GetDbString(reader["ColorSize"]);
entity.CommentContent=StringUtils.GetDbString(reader["CommentContent"]);
entity.MemberCode=StringUtils.GetDbString(reader["MemberCode"]);
entity.MemberLevel=StringUtils.GetDbInt(reader["MemberLevel"]);
entity.ClientType=StringUtils.GetDbInt(reader["ClientType"]);
}
}
return entity;
}
/// <summary>
/// 插入一条记录到表CommentShow，如果表中存在自增字段，则返回值为新记录的自增字段值，否则返回0。
/// 该方法提供给界面等UI层调用
/// </summary>
/// <param name="commentShow">要添加的CommentShow数据实体对象</param>
public int AddCommentShow(CommentShowEntity commentShow)
{
if (commentShow.Id > 0)
{
return(UpdateCommentShow(commentShow));
}
else if (CommentShowBLL.Instance.IsExist(commentShow))
{
return((int)CommonStatus.ADD_Fail_Exist);
}
else
{
return(CommentShowDA.Instance.AddCommentShow(commentShow));
}
}
/// <summary>
/// 读取记录列表。
/// </summary>
/// <param name="db">数据库操作对象</param>
/// <param name="columns">需要返回的列，不提供任何列名时默认将返回所有列</param>
public IList<CommentShowEntity> GetCommentShowList(int pagesize, int pageindex, ref int recordCount )
{
string sql=@"SELECT [Id],[Title],[CommentTime],[Star],[ColorSize],[CommentContent],[MemberCode],[MemberLevel],[ClientType]
FROM
(SELECT ROW_NUMBER() OVER (ORDER BY Id desc) AS ROWNUMBER,
[Id],[Title],[CommentTime],[Star],[ColorSize],[CommentContent],[MemberCode],[MemberLevel],[ClientType] from dbo.[CommentShow] WITH(NOLOCK)
WHERE 1=1 ) as temp
where rownumber BETWEEN ((@PageIndex - 1) * @PageSize + 1) AND @PageIndex * @PageSize";
string sql2=@"Select count(1) from dbo.[CommentShow] with (nolock) ";
IList<CommentShowEntity> entityList = new List< CommentShowEntity>();
DbCommand cmd = db.GetSqlStringCommand(sql);
db.AddInParameter(cmd, "@PageIndex", DbType.Int32, pageindex);
db.AddInParameter(cmd, "@PageSize", DbType.Int32, pagesize);
using (IDataReader reader = db.ExecuteReader(cmd))
{
while (reader.Read())
{
CommentShowEntity entity=new CommentShowEntity();
entity.Id=StringUtils.GetDbInt(reader["Id"]);
entity.Title=StringUtils.GetDbString(reader["Title"]);
entity.CommentTime=StringUtils.GetDbDateTime(reader["CommentTime"]);
entity.Star=StringUtils.GetDbInt(reader["Star"]);
entity.ColorSize=StringUtils.GetDbString(reader["ColorSize"]);
entity.CommentContent=StringUtils.GetDbString(reader["CommentContent"]);
entity.MemberCode=StringUtils.GetDbString(reader["MemberCode"]);
entity.MemberLevel=StringUtils.GetDbInt(reader["MemberLevel"]);
entity.ClientType=StringUtils.GetDbInt(reader["ClientType"]);
entityList.Add(entity);
}
}
cmd = db.GetSqlStringCommand(sql2);
using (IDataReader reader = db.ExecuteReader(cmd))
{
if (reader.Read())
{
recordCount = StringUtils.GetDbInt(reader[0]);
}
else
{
recordCount = 0;
}
}
return entityList;
}
/// <summary>
/// 根据主键值更新记录的全部字段（注意：该方法不会对自增字段、timestamp类型字段以及主键字段更新！如果要更新主键字段，请使用Update方法）。
/// 如果数据库有数据被更新了则返回True，否则返回False
/// </summary>
/// <param name="db">数据库操作对象</param>
/// <param name="commentShow">待更新的实体对象</param>
public int UpdateCommentShow(CommentShowEntity entity)
{
string sql=@" UPDATE dbo.[CommentShow] SET
[Title]=@Title,[CommentTime]=@CommentTime,[Star]=@Star,[ColorSize]=@ColorSize,[CommentContent]=@CommentContent,[MemberCode]=@MemberCode,[MemberLevel]=@MemberLevel,[ClientType]=@ClientType
WHERE [Id]=@id";
DbCommand cmd = db.GetSqlStringCommand(sql);
db.AddInParameter(cmd,"@Id", DbType.Int32,entity.Id);
db.AddInParameter(cmd,"@Title", DbType.String,entity.Title);
db.AddInParameter(cmd,"@CommentTime", DbType.DateTime,entity.CommentTime);
db.AddInParameter(cmd,"@Star", DbType.Int32,entity.Star);
db.AddInParameter(cmd,"@ColorSize", DbType.String,entity.ColorSize);
db.AddInParameter(cmd,"@CommentContent", DbType.String,entity.CommentContent);
db.AddInParameter(cmd,"@MemberCode", DbType.String,entity.MemberCode);
db.AddInParameter(cmd,"@MemberLevel", DbType.Int32,entity.MemberLevel);
db.AddInParameter(cmd,"@ClientType", DbType.Int32,entity.ClientType);
return db.ExecuteNonQuery(cmd);
}
/// <summary>
/// 插入一条记录到表CommentShow，如果表中存在自增字段，则返回值为新记录的自增字段值，否则返回0
/// </summary>
/// <param name="db">数据库操作对象</param>
/// <param name="commentShow">待插入的实体对象</param>
public int AddCommentShow(CommentShowEntity entity)
{
string sql=@"insert into CommentShow( [Title],[CommentTime],[Star],[ColorSize],[CommentContent],[MemberCode],[MemberLevel],[ClientType])VALUES
( @Title,@CommentTime,@Star,@ColorSize,@CommentContent,@MemberCode,@MemberLevel,@ClientType);
SELECT SCOPE_IDENTITY();";
DbCommand cmd = db.GetSqlStringCommand(sql);
db.AddInParameter(cmd,"@Title", DbType.String,entity.Title);
db.AddInParameter(cmd,"@CommentTime", DbType.DateTime,entity.CommentTime);
db.AddInParameter(cmd,"@Star", DbType.Int32,entity.Star);
db.AddInParameter(cmd,"@ColorSize", DbType.String,entity.ColorSize);
db.AddInParameter(cmd,"@CommentContent", DbType.String,entity.CommentContent);
db.AddInParameter(cmd,"@MemberCode", DbType.String,entity.MemberCode);
db.AddInParameter(cmd,"@MemberLevel", DbType.Int32,entity.MemberLevel);
db.AddInParameter(cmd,"@ClientType", DbType.Int32,entity.ClientType);
object identity = db.ExecuteScalar(cmd);
if (identity == null || identity == DBNull.Value) return 0;
return Convert.ToInt32(identity);
}
/// <summary>
/// 判断当前节点是否已存在相同的
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public int ExistNum(CommentShowEntity entity)
{
///id=0,判断总数，ID>0判断除自己之外的总数
string sql = @"Select count(1) from dbo.[CommentShow] WITH(NOLOCK) ";
string where = "where ";
if (entity.Id == 0)
{
}
else
{
}
sql = sql + where;
DbCommand cmd = db.GetSqlStringCommand(sql);
if (entity.Id > 0)
{
db.AddInParameter(cmd, "@Id", DbType.Int32, entity.Id);
}
object identity = db.ExecuteScalar(cmd);
if (identity == null || identity == DBNull.Value) return 0;
return Convert.ToInt32(identity);
}
/// <summary>
/// 读取记录列表。
/// </summary>
/// <param name="db">数据库操作对象</param>
/// <param name="columns">需要返回的列，不提供任何列名时默认将返回所有列</param>
public IList<CommentShowEntity> GetCommentShowAll()
{
string sql = @"SELECT [Id],[Title],[CommentTime],[Star],[ColorSize],[CommentContent],[MemberCode],[MemberLevel],[ClientType] from dbo.[CommentShow] WITH(NOLOCK) ";
IList<CommentShowEntity> entityList = new List<CommentShowEntity>();
DbCommand cmd = db.GetSqlStringCommand(sql);
using (IDataReader reader = db.ExecuteReader(cmd))
{
while (reader.Read())
{
CommentShowEntity entity=new CommentShowEntity();
entity.Id=StringUtils.GetDbInt(reader["Id"]);
entity.Title=StringUtils.GetDbString(reader["Title"]);
entity.CommentTime=StringUtils.GetDbDateTime(reader["CommentTime"]);
entity.Star=StringUtils.GetDbInt(reader["Star"]);
entity.ColorSize=StringUtils.GetDbString(reader["ColorSize"]);
entity.CommentContent=StringUtils.GetDbString(reader["CommentContent"]);
entity.MemberCode=StringUtils.GetDbString(reader["MemberCode"]);
entity.MemberLevel=StringUtils.GetDbInt(reader["MemberLevel"]);
entity.ClientType=StringUtils.GetDbInt(reader["ClientType"]);
entityList.Add(entity);
}
}
return entityList;
}
/// <summary>
/// 更新一条CommentShow记录。
/// 该方法提供给界面等UI层调用
/// </summary>
/// <param name="commentShow">待更新的实体对象</param>
/// <param name="columns">要更新的列名，不提供任何列名时默认将更新主键之外的所有列</param>
public int UpdateCommentShow(CommentShowEntity commentShow)
{
return(CommentShowDA.Instance.UpdateCommentShow(commentShow));
}
/// <summary>
/// 判断对象是否存在
/// </summary>
/// <param name="dicEnum"></param>
/// <returns></returns>
public bool IsExist(CommentShowEntity commentShow)
{
return(CommentShowDA.Instance.ExistNum(commentShow) > 0);
}
