error

NoMethodError in StocksController#show
undefined method `times' for #<String:0x007f9bef44ed40>

Extracted source (around line #19):
17
18
19
20
21
22
              
    data_table.new_column('number', 'Price')
    # Add Rows and Values
    data_table.add_rows(@stock.daily_prices.pluck(:date, :close).to_json)

    option = { width: 400, height: 240, title: 'Company Performance' }
    @chart = GoogleVisualr::Interactive::AreaChart.new(data_table, option)

Rails.root: /home/andreas/railsdev/alphatrade

Application Trace | Framework Trace | Full Trace
app/controllers/stocks_controller.rb:19:in `show'
Request

Parameters:

{"id"=>"1"}
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Response

Headers:

None

error2

Processing by StocksController#show as HTML
  Parameters: {"id"=>"1"}
  Stock Load (0.1ms)  SELECT  "stocks".* FROM "stocks" WHERE "stocks"."id" = $1 LIMIT 1  [["id", 1]]
   (8.1ms)  SELECT "daily_prices"."date", "daily_prices"."close" FROM "daily_prices" WHERE "daily_prices"."dailydata_id" = $1 AND "daily_prices"."dailydata_type" = $2  [["dailydata_id", 1], ["dailydata_type", "Stock"]]
Completed 500 Internal Server Error in 221ms (ActiveRecord: 8.2ms)

NoMethodError (undefined method `times' for #<String:0x007f9bef44ed40>):
  app/controllers/stocks_controller.rb:19:in `show'


  Rendered /usr/local/lib64/ruby/gems/2.1.0/gems/actionpack-4.2.5/lib/action_dispatch/middleware/templates/rescues/_source.erb (4.2ms)
  Rendered /usr/local/lib64/ruby/gems/2.1.0/gems/actionpack-4.2.5/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (1.8ms)
  Rendered /usr/local/lib64/ruby/gems/2.1.0/gems/actionpack-4.2.5/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (0.7ms)
  Rendered /usr/local/lib64/ruby/gems/2.1.0/gems/actionpack-4.2.5/lib/action_dispatch/middleware/templates/rescues/diagnostics.html.erb within rescues/layout (19.6ms)

stocks_controller.rb

class StocksController < ApplicationController
  before_action :set_stock, except: [:index, :new, :create]

  def index
    @stocks = Stock.all
    respond_to do |format|
      format.html
      format.json { render json: StocksDatatable.new(view_context) }
    end
  end


  def show
    data_table = GoogleVisualr::DataTable.new
    # Add Column Headers
    data_table.new_column('string', 'Date' )
    data_table.new_column('number', 'Price')
    # Add Rows and Values
    data_table.add_rows(@stock.daily_prices.pluck(:date, :close).to_json)

    option = { width: 400, height: 240, title: 'Company Performance' }
    @chart = GoogleVisualr::Interactive::AreaChart.new(data_table, option)
  end


  def new
    @stock = Stock.new
  end


  def create
    @stock = Stock.new(stock_params)
    if @stock.save
      redirect_to stocks_url
    else
      render :new
    end
  end


  def edit
  end


  def update
    if @stock.update(stock_params)
      redirect_to @stock, notice: "Security successfully updated!"
    else
      render :edit
    end
  end


  def destroy
    @stock.destroy
    redirect_to stocks_url, notice: "Security successfully deleted!"
  end


  private

  def stock_params
    params.require(:stock).
        permit(:name, :symbol, :profile, :address, :phone, :email, :website)
  end

  def set_stock
    @stock = Stock.find(params[:id])
  end

end