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Filter Vulgar words and detect only 160 words in Stored Procedure

Posted on 2012-04-05
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Last Modified: 2012-04-13
Trying to filter vulgar words and limit to 160 words in @Message variable before insert statement, and return several strings forout put,

@ExpireDate DATETIME,
 @ReturnString VARCHAR(100) OUTPUT
 
AS  

BEGIN 
     SET NOCOUNT ON 
     
     IF (CHARINDEX('bitch', @Message) > 0) 
     
		@ReturnString = 'Please do not use vulgar words'
     
     ELSE
     

     INSERT INTO dbo.fSMSBuffB
          ( 
            fBatchNo                     ,
            fOrderNo                     ,
            fRefNo                       ,
            fPriority                    ,
            fFromID                      ,
            fMobileNumber                ,
            fMessage					 ,
            fInputDate					 ,
            fSuccessDate				 ,
            fExpireDate        
          ) 
     VALUES 
          ( 
            @BatchNo                      ,
            @OrderNo                      ,
            @Refno                        ,
            @Priority                     ,
            @FromID                       ,
            @MobileNumber                 ,
            @Message                      ,
            @InputDate                    ,
            @SuccessDate                  ,
            @ExpireDate
          ) 

END 

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Question by:doramail05
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7 Comments
 
LVL 32

Expert Comment

by:Ephraim Wangoya
ID: 37809771
Best way would be to create a table that will hold the words you wish to filter. Then create a stored procedure that checks for the words.
something very simple like

create table InvalidWords(
	id int identity,
	sword varchar(32)
)
	
------
create procedure ValidateWords @Message varchar(8000), @status int out
as
begin
  declare @id int, @word varchar(32)
  set @status = 0
  set @id = 1
  
  while exists(select 1 from InvalidWords where id >= @id)
  begin
    select @id = ID, @word = sword from InvalidWords where id >= @id
    set @id = @id + 1 
    
    if CHARINDEX(@word, @Message, 1) >= 1
    BEGIN
		set @status = 1
		break
    END
  end
end

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LVL 32

Expert Comment

by:Ephraim Wangoya
ID: 37809776
In your code, you could do

BEGIN
     SET NOCOUNT ON

    DECLARE @status int
     ValidateWords(@Message, @Status)
     
     IF @Status = 1
                @ReturnString = 'Please do not use vulgar words'
     ELSE
    .....................
0
 
LVL 1

Author Comment

by:doramail05
ID: 37809872
guess should be making a table to store and retrieve it,

But what if just without the method,

only by using this stored procedure to filter several words
0
Will your db performance match your db growth?

In Percona’s white paper “Performance at Scale: Keeping Your Database on Its Toes,” we take a high-level approach to what you need to think about when planning for database scalability.

 
LVL 32

Expert Comment

by:Ephraim Wangoya
ID: 37809943
That would become a little bit messy and hard to maintain, think adding a new word to your check.

You will end up with multiple conditions, as many as the words you would like to filter eg

if (CHARINDEX('xxx', @Message, 1)  >=1) OR (CHARINDEX('yyy', @Message, 1)  >=1) OR ..........
0
 
LVL 1

Accepted Solution

by:
doramail05 earned 0 total points
ID: 37822272
got it oredi

BEGIN 
     SET NOCOUNT ON 
    -- vulgar text filter start
		set @ReturnString=5
		DECLARE @S varchar(max),@Split char(1), @X xml
		SELECT @S = @Message, @Split = ' '
		SELECT @X = CONVERT(xml,'<root><s>' + REPLACE(@S,@Split,'</s><s>') + '</s></root>')
		DECLARE @vtext int
		--set @vtext=

		set @vtext=(select COUNT(*) from(
		SELECT [tValue] = T.c.value('.','varchar(20)'),vulgarword FROM @X.nodes('/root/s') T(c)
		left join tVulgarTable on T.c.value('.','varchar(20)') =tVulgarTable.vulgarword
		)
		t
		where t.vulgarword is not null)
		print @vtext
		
--Vulgar text filter end
    
     if (@vtext>0)
		begin
			set @ReturnString = 0
		end
	if (len(@Message)>160)
		begin
			set @ReturnString = 1
		end
	if (len(@Message)>160 and @vtext>0)
		begin
			set @ReturnString = 3
		end
	
	 if ((len(@Message)<160 or len(@Message)=160) and @ReturnString=5)
		begin
			
			set @ReturnString = 2
		
        
     INSERT INTO dbo.tableA

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LVL 75

Expert Comment

by:Anthony Perkins
ID: 37823312
assist from other
Then why are your not awarding points for assists?
0
 
LVL 1

Author Closing Comment

by:doramail05
ID: 37841666
assist from other
0

Featured Post

Will your db performance match your db growth?

In Percona’s white paper “Performance at Scale: Keeping Your Database on Its Toes,” we take a high-level approach to what you need to think about when planning for database scalability.

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