/// <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(ProductStyleCarEntity 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.[ProductStyleCar] 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>
/// 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 ProductStyleCarEntity GetProductStyleCar(int id)
{
string sql = @"SELECT [Id],[StyleId],[BrandCar1],[BrandCar2],[BrandCar3],[BrandCar4],[CreateTime]
FROM
dbo.[ProductStyleCar] WITH(NOLOCK)
WHERE [Id]=@id" ;
DbCommand cmd = db.GetSqlStringCommand(sql);
db.AddInParameter(cmd, "@Id", DbType.Int32, id);
ProductStyleCarEntity entity = new ProductStyleCarEntity();
using (IDataReader reader = db.ExecuteReader(cmd))
{
if (reader.Read())
{
entity.Id = StringUtils.GetDbInt(reader["Id"]);
entity.StyleId = StringUtils.GetDbInt(reader["StyleId"]);
entity.BrandCar1 = StringUtils.GetDbInt(reader["BrandCar1"]);
entity.BrandCar2 = StringUtils.GetDbInt(reader["BrandCar2"]);
entity.BrandCar3 = StringUtils.GetDbInt(reader["BrandCar3"]);
entity.BrandCar4 = StringUtils.GetDbInt(reader["BrandCar4"]);
entity.CreateTime = StringUtils.GetDbDateTime(reader["CreateTime"]);
}
}
return(entity);
}
/// <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="productStyleCar">待更新的实体对象</param>
public int UpdateProductStyleCar(ProductStyleCarEntity entity)
{
string sql = @" UPDATE dbo.[ProductStyleCar] SET
[StyleId]=@StyleId,[BrandCar1]=@BrandCar1,[BrandCar2]=@BrandCar2,[BrandCar3]=@BrandCar3,[BrandCar4]=@BrandCar4,[CreateTime]=@CreateTime
WHERE [Id]=@id";
DbCommand cmd = db.GetSqlStringCommand(sql);
db.AddInParameter(cmd, "@Id", DbType.Int32, entity.Id);
db.AddInParameter(cmd, "@StyleId", DbType.Int32, entity.StyleId);
db.AddInParameter(cmd, "@BrandCar1", DbType.Int32, entity.BrandCar1);
db.AddInParameter(cmd, "@BrandCar2", DbType.Int32, entity.BrandCar2);
db.AddInParameter(cmd, "@BrandCar3", DbType.Int32, entity.BrandCar3);
db.AddInParameter(cmd, "@BrandCar4", DbType.Int32, entity.BrandCar4);
db.AddInParameter(cmd, "@CreateTime", DbType.DateTime, entity.CreateTime);
return(db.ExecuteNonQuery(cmd));
}
/// <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 <ProductStyleCarEntity> GetProductStyleCarList(int pagesize, int pageindex, ref int recordCount)
{
string sql = @"SELECT [Id],[StyleId],[BrandCar1],[BrandCar2],[BrandCar3],[BrandCar4],[CreateTime]
FROM
(SELECT ROW_NUMBER() OVER (ORDER BY Id desc) AS ROWNUMBER,
[Id],[StyleId],[BrandCar1],[BrandCar2],[BrandCar3],[BrandCar4],[CreateTime] from dbo.[ProductStyleCar] WITH(NOLOCK)
WHERE 1=1 ) as temp
where rownumber BETWEEN ((@PageIndex - 1) * @PageSize + 1) AND @PageIndex * @PageSize" ;
string sql2 = @"Select count(1) from dbo.[ProductStyleCar] with (nolock) ";
IList <ProductStyleCarEntity> entityList = new List <ProductStyleCarEntity>();
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())
{
ProductStyleCarEntity entity = new ProductStyleCarEntity();
entity.Id = StringUtils.GetDbInt(reader["Id"]);
entity.StyleId = StringUtils.GetDbInt(reader["StyleId"]);
entity.BrandCar1 = StringUtils.GetDbInt(reader["BrandCar1"]);
entity.BrandCar2 = StringUtils.GetDbInt(reader["BrandCar2"]);
entity.BrandCar3 = StringUtils.GetDbInt(reader["BrandCar3"]);
entity.BrandCar4 = StringUtils.GetDbInt(reader["BrandCar4"]);
entity.CreateTime = StringUtils.GetDbDateTime(reader["CreateTime"]);
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>
/// 插入一条记录到表ProductStyleCar，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="productStyleCar">待插入的实体对象</param>
public int AddProductStyleCar(ProductStyleCarEntity entity)
{
string sql = @"insert into ProductStyleCar( [StyleId],[BrandCar1],[BrandCar2],[BrandCar3],[BrandCar4],[CreateTime])VALUES
( @StyleId,@BrandCar1,@BrandCar2,@BrandCar3,@BrandCar4,@CreateTime);
SELECT SCOPE_IDENTITY();" ;
DbCommand cmd = db.GetSqlStringCommand(sql);
db.AddInParameter(cmd, "@StyleId", DbType.Int32, entity.StyleId);
db.AddInParameter(cmd, "@BrandCar1", DbType.Int32, entity.BrandCar1);
db.AddInParameter(cmd, "@BrandCar2", DbType.Int32, entity.BrandCar2);
db.AddInParameter(cmd, "@BrandCar3", DbType.Int32, entity.BrandCar3);
db.AddInParameter(cmd, "@BrandCar4", DbType.Int32, entity.BrandCar4);
db.AddInParameter(cmd, "@CreateTime", DbType.DateTime, entity.CreateTime);
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 <ProductStyleCarEntity> GetProductStyleCarAll()
{
string sql = @"SELECT [Id],[StyleId],[BrandCar1],[BrandCar2],[BrandCar3],[BrandCar4],[CreateTime] from dbo.[ProductStyleCar] WITH(NOLOCK) ";
IList <ProductStyleCarEntity> entityList = new List <ProductStyleCarEntity>();
DbCommand cmd = db.GetSqlStringCommand(sql);
using (IDataReader reader = db.ExecuteReader(cmd))
{
while (reader.Read())
{
ProductStyleCarEntity entity = new ProductStyleCarEntity();
entity.Id = StringUtils.GetDbInt(reader["Id"]);
entity.StyleId = StringUtils.GetDbInt(reader["StyleId"]);
entity.BrandCar1 = StringUtils.GetDbInt(reader["BrandCar1"]);
entity.BrandCar2 = StringUtils.GetDbInt(reader["BrandCar2"]);
entity.BrandCar3 = StringUtils.GetDbInt(reader["BrandCar3"]);
entity.BrandCar4 = StringUtils.GetDbInt(reader["BrandCar4"]);
entity.CreateTime = StringUtils.GetDbDateTime(reader["CreateTime"]);
entityList.Add(entity);
}
}
return(entityList);
}
