On 09.05.2008 08:38, 7stud -- wrote:
>  Sunny Bogawat wrote:
> > i am developing one application in which user uploaded one csv template
> > to my system(file). but we have to take care that user should uploaded
> > .csv file only if he trying to upload another file we have to restrict
> > it.
> > how to check for extention in ruby on rails 
>  
>  In the Ruby programming language, which is what this forum is about, you 
>  could do something like this:
>  
>  fnames = ["somefile.csv", "anotherfile.jpg"]
>  
>  fnames.each do |fname|
>    pieces = fname.split(".")
>  
>    if pieces[-1] != "csv"
>      print "bad file: ", fname
>      puts
>    end
>  
>  end

This is a rather weak check as it only tests the file name.  Note, that 
you can do this more easily:

ok = /\.csv$/i =~ file_name

Kind regards
	
	robert