Question

I’ve got an array (@bigtable), filled with strings, and I want to save them to file where every row from array will be separate line, here is my code for saving file:

  def savefile
    @bigtable = Rails.cache.read("pass")
    doc = "wyniki.csv"
    File.open(doc, "w", :type => 'text/html; charset=utf-8'){ |f| f << @bigtable}
    send_file(doc, :disposition => 'attachment')
  end

Any ideas?

Answer 1

What’s the actual question? Writing the array?

f << @bigtable.join("\n")

(If it’s actually big, and you’re having memory issues, write it line-by-line.)

If it’s a CSV file, why set the type to "text/html"? Would "text/csv" be more appropriate?