CSV Data Import To MYSQL DB Using RUBY

Question

I am trying to insert data via csv to database. This is my controller code

    require 'csv'
      def index

      end

      def add
        @filename=CSV::Reader.parse(params[:dump][:file])
        n=0
        CSV::foreach(@filename, :headers => true) do |row|
        Student.new(row.to_hash.symbolize_keys).save
        n=n+1
        end
        flash.now[:message]="CSV Import Successful,  #{n} new records added to data base"
      end

Now when i am inserting a csv file i am getting the error

**can't convert CSV::IOReader into String**

My ruby version is 1.8.7

Any help will be appreciated.

Answer 1

If you are using Ruby, you could use the following code:

require 'csv'

def index

end

def add
  n=0
  CSV::foreach(params[:dump][:file]) do |row|
    Student.new(row.to_hash.symbolize_keys).save
    n=n+1
  end
  flash.now[:message]="CSV Import Successful,  #{n} new records added to data base"
end

You can get more information about CSV:foreach on http://apidock.com/ruby/CSV

---

I failed with the above reply because I assumed that the [:dump][:file] was the path to the file (string object), but seeing that error, you should read the file first (it is a TempFile object), and then parse the content as string:

require 'csv'
  def index

  end

  def add
    n=0
    CSV::parse(params[:dump][:file].read, :headers => true) do |row|
      Student.new(row.to_hash.symbolize_keys).save
      n=n+1
    end

    flash.now[:message]="CSV Import Successful,  #{n} new records added to data base"
  end