/* -----------------------------------
产生论坛分类目录内容表过程

----------------------------------- */
CREATE PROCEDURE sp_createnew_bbscontent
@tabname varchar(200)=\'\',
@boardid int
AS
declare @tri_inst_name nvarchar(100)
declare @tri_up_name nvarchar(100)
declare @tri_del_name nvarchar(100)
declare @deltab nvarchar(100)
declare @st nvarchar(2000)
select @tri_inst_name=\'inst_bbsContent\'+LTRIM(RTRIM(str(@Boardid)))
select @tri_up_name=\'up_bbsContent\'+LTRIM(RTRIM(str(@Boardid)))
select @tri_del_name=\'delete_bbsContent\'+LTRIM(RTRIM(str(@Boardid)))
select @deltab=\'drop table \'+@tabname
if len(@tabname)=0
return
if exists (select * from sysobjects where id = object_id(@tabname) and OBJECTPROPERTY(id, N\'IsUserTable\') = 1)
exec sp_executesql @deltab

select @st=\'CREATE TABLE \'+@tabname+
\'(
AnnounceID int identity (1, 1) NOT NULL ,
ParentID int default (0) NULL ,
Child int default (0) NULL ,
User_id int NULL ,
boardID int NULL ,
Topic nvarchar (255) NULL ,
Body ntext NULL ,
DateAndTime datetime default (getdate()) NULL ,
Hits int default (0) NULL ,
Length int default (0) NULL ,
RootID int default (0) NULL ,
Layer tinyint default (1) NULL ,
Orders int default (0) NULL ,
Ip nvarchar (20) default (0) NULL ,
Expression nvarchar (50) NULL ,
Forbid tinyint default(0) NULL
)\'
exec sp_executesql @st

select @st=\'CREATE TRIGGER \'+ @tri_inst_name+\' ON \'+@tabname+ \'
FOR INSERT
AS
declare @rid integer,@pid integer
select @pid=ParentId from inserted
if @pid = 0
begin
select @rid =@@identity
update \'+ @tabname+\' set rootid=@rid where AnnounceID=@rid
end\'
exec sp_executesql @st

select @st=\'CREATE TRIGGER \'+ @tri_up_name+\' ON \'+@tabname+ \'
FOR UPDATE
AS

declare @pid int ,@rid int,@forbid tinyint
if update(forbid)
begin
select @pid = parentid,@rid = rootid,@forbid=forbid from inserted
/* 如果其父没有开放 则不能开放 */
if exists ( select * from \'+@tabname +\' where AnnounceID = @pid and Forbid!= 0 )
begin
rollback transaction
return
end
update \'+@tabname+ \' set forbid=@forbid where rootid=@rid and parentid>@pid
end\'
exec sp_executesql @st

select @st=\'CREATE TRIGGER \'+ @tri_del_name+\' ON \'+@tabname+ \'
FOR DELETE
AS
declare @pid int ,@rid int
select @pid = parentid,@rid = rootid from deleted
delete from \'+@tabname +\' where rootid=@rid and parentid>@pid\'

exec sp_executesql @st