添加类别和修改类别(无限级别分类)

//添加类别

CREATE PROCEDURE DS_AddNewsType

(

@NewsTypeName varchar(100),

@NewsTypeDesc varchar(500),

@ParentID int,

@MasterID int,

@ReleaseDate datetime,

@iLanguage tinyint

)

AS

DECLARE @RecordCount as int

SET @RecordCount=

(

select count(*) from DS_NewsType where NewsTypeName=@NewsTypeName

)

DECLARE @NewsTypeLevel as int

SET @NewsTypeLevel=

(

select NewsTypeLevel from DS_NewsType where NewsTypeID=@ParentID

)

if @NewsTypeLevel is null

begin

set @NewsTypeLevel=0

end

if @RecordCount<=0 begin

INSERT INTO

DS_NewsType

(

NewsTypeName,

NewsTypeDesc,

ParentID,

NewsTypeLevel,

IDTree,

MasterID,

AddDate,

ReleaseDate,

iLanguage

)

VALUES

(

@NewsTypeName,

@NewsTypeDesc,

@ParentID,

@NewsTypeLevel+1,

'.',

@MasterID,

GetDate(),

@ReleaseDate,

@iLanguage

)

DECLARE @IDTree as varchar(100)

SET @IDTree=

(

select IDTree from DS_NewsType where NewsTypeID=@ParentID

)

if @IDTree is null

begin

Update

DS_NewsType

Set

IDTree = ltrim(str(@@Identity))+'.'

WHERE

NewsTypeID = @@Identity

end

else

begin

Update

DS_NewsType

Set

IDTree = @IDTree+ltrim(str(@@Identity))+'.'

WHERE

NewsTypeID = @@Identity

end

Update

DS_NewsType

Set

IsLeaf = 0

WHERE

NewsTypeID = @ParentID

end

RETURN @@Identity

GO

//修改类别

CREATE PROCEDURE DS_EditNewsType

(

@NewsTypeID int,

@NewsTypeName varchar(100),

@NewsTypeDesc varchar(500),

@ParentID int,

@MasterID int,

@ReleaseDate datetime,

@iLanguage tinyint

)

AS

DECLARE @RecordCount as int

SET @RecordCount=

(

select count(*) from DS_NewsType where NewsTypeName=@NewsTypeName and NewsTypeID!=@NewsTypeID

)

DECLARE @NewsTypeLevel as int

SET @NewsTypeLevel=

(

select NewsTypeLevel from DS_NewsType where NewsTypeID=@ParentID

)

if @NewsTypeLevel is null

begin

set @NewsTypeLevel=0

end

if @RecordCount<=0 begin

Update

DS_NewsType

Set

NewsTypeName = @NewsTypeName,

NewsTypeDesc = @NewsTypeDesc,

ParentID = @ParentID,

NewsTypeLevel = @NewsTypeLevel+1,

MasterID = @MasterID,

ReleaseDate = @ReleaseDate,

iLanguage = @iLanguage

WHERE

NewsTypeID = @NewsTypeID

DECLARE @IDTree as varchar(100)

SET @IDTree=

(

select IDTree from DS_NewsType where NewsTypeID=@ParentID

)

if @IDTree is null

begin

Update

DS_NewsType

Set

IDTree = ltrim(str(@NewsTypeID))+'.'

WHERE

NewsTypeID = @NewsTypeID

end

else

begin

Update

DS_NewsType

Set

IDTree =convert(nvarchar(100),@ParentID)+'.'+ltrim(str(@NewsTypeID))+'.'

WHERE

NewsTypeID = @NewsTypeID

end

Update

DS_NewsType

Set

IsLeaf = 0

WHERE

NewsTypeID = @ParentID

end

RETURN

GO