Scalar function to convert a post title into a URL slug

dbo.make_slug.sql

CREATE FUNCTION [dbo].[make_slug]
(
	@post_title nvarchar(256)
)
RETURNS nvarchar(500)
AS
BEGIN
	-- Declare the return variable here
	DECLARE @slug nvarchar(500)
	DECLARE @clean_title nvarchar(500)
	
	
	SET @clean_title = LOWER(dbo.deDupeSpaces(dbo.removePunctuation(@post_title)))
	SET @slug = REPLACE(@clean_title, ' ', '-')
	
	RETURN @slug

END