Solved

help with stored procedure for sorting, paging and filtering

Posted on 2014-03-12
4
377 Views
Last Modified: 2014-03-12
I have created a stored procedure that  gets products, filters, sorts and does paging. I am now trying to filter based on product attributes and wondering how to make it dynamic.

I am fetching all attributes based on the search results and all attributes are checkbox with name "filter1". When one of the checkbox is checked, the value is passed onto the procedure as filter1 and this is working so far.

I need to make this dynamic because the method so far only allows a fixed number of parameters.

Attribute tables:

Items_AttributeValues
itemID
attributeValueID

Item_Attribute_Value
id
value
attributeID

Item_Attribute
id
name


Stored procedure so far:

ALTER PROCEDURE [dbo].[web_search_getProducts]

	@searchText as nvarchar (20) = NULL, 
	@brand as nvarchar (20) = NULL,
	@deptID as int = 0,
	@catID as int = 0,
	@filter1 as int = 0,
	@PageNo as integer = 1,
	@PageRecs as integer = 50,
	@OrdType as integer = 0,
	@custID as int = 0


AS
	WITH results AS ( 
	SELECT rowNo = ROW_NUMBER() OVER(ORDER BY 
     	case @OrdType when 0 then i.MSRP end Desc,
     	case @OrdType when 1 then  i.MSRP end Asc,
     	case @OrdType when 2 then  i.subdescription1 end Asc,
     	case @OrdType when 3 then  i.subdescription1 end desc),
     
     	i.ID AS itemID, i.Description AS itemDesc,      
     	i.ItemLookupCode, c.ID AS catID, 
     	c.Name AS catName, d.ID AS deptID, 
     	d.Name AS deptNAme, ie.Description, 
     	ie.Short_Desc, ie.Video, 
     	ie.Image, 
     	ie.Path, 
     	i.Quantity, 
     	i.MSRP, 
     	i.SubDescription1 as brand,
     	a.id as AttributeID,
	a.name as Attribute,
	iav.id as AttributeValueID,
	iav.value as AttributeValue
    
    	FROM dbo.Item i INNER JOIN dbo.Category c ON i.CategoryID = c.ID 
    	INNER JOIN dbo.Department d ON c.DepartmentID = d.ID 
    	INNER JOIN dbo.Item_Extended ie ON i.ID = ie.RMS_ID
    	LEFT JOIN dbo.Items_AttributeValues iavs ON iavs.itemID = i.ID
    	LEFT JOIN dbo.Item_Attribute_Value iav on iav.id = iavs.attributeValueID
    	LEFT JOIN dbo.Item_Attribute a on a.id = iav.attributeID
    
    
    	-- filtering based on fields
    	WHERE 
    	(i.Inactive = 0)    
    	AND (@brand IS NULL OR i.Subdescription1 LIKE '%' + @brand + '%')
    	AND (@deptID = 0 OR d.ID=@deptID)
    	AND (@catID = 0 OR c.ID=@catID)
    	AND ((@searchText IS NULL OR i.Description LIKE '%' + @searchText + '%') OR (@searchText IS NULL OR i.ExtendedDescription LIKE '%' + 

@searchText + '%'))
    
	-- filter based on attribute value
    	AND (@filter1 = 0 OR iav.id=@filter1)
    
  )
    
SELECT *  FROM results WHERE rowNo between ((@PageNo-1)*@pagerecs)+1 and @PageNo*@pagerecs

Open in new window

0
Comment
Question by:CEL_IT
  • 3
4 Comments
 
LVL 32

Accepted Solution

by:
Big Monty earned 500 total points
Comment Utility
if there are a dynamic amount of options coming through the the SP, then I would pass in all of the parameters as a string, then within the SP, use a sql split function to parse out each value into a temp table. From there, loop through the temp table and buid ypur where clause from that
0
 
LVL 32

Expert Comment

by:Big Monty
Comment Utility
to loop through a table, you can use this code:

Declare @Id int

While (Select Count(*) From ATable Where Processed = 0) > 0
Begin
    Select Top 1 @Id = Id From ATable Where Processed = 0

    --Do some processing here

    Update ATable Set Processed = 1 Where Id = @Id 

End

Open in new window

0
 

Author Comment

by:CEL_IT
Comment Utility
Big Monty,

thanks for your help earlier, I have now updated it to pass all parameters in a string and use the split function as you suggested which works brilliant.

-- filter 1 changed to @attrs as varchar (500) to pass a string with all parameters
AND (@attrs is null OR iav.id IN ( SELECT Value FROM fnSplitStringToInt(@attrs,',') ))

Open in new window


Now my only issue is same products being returned multiple times. I have done a left join but I think because of the IN statement, I am getting same products multiple times.
0
 
LVL 32

Expert Comment

by:Big Monty
Comment Utility
I'm sorry, I don't even know where to begin to resolve that issue. I recommend either Requesting Attention on this question or closing it out and asking a new one with the specifics listed in it.
0

Featured Post

Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

Join & Write a Comment

SQL Server engine let you use a Windows account or a SQL Server account to connect to a SQL Server instance. This can be configured immediatly during the SQL Server installation or after in the Server Authentication section in the Server properties …
For both online and offline retail, the cross-channel business is the most recent pattern in the B2C trade space.
Using examples as well as descriptions, and references to Books Online, show the documentation available for datatypes, explain the available data types and show how data can be passed into and out of variables.
Viewers will learn how to use the SELECT statement in SQL and will be exposed to the many uses the SELECT statement has.

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now