Possible reopen of sinatra #31
neilyoung opened this issue · comments
Having the same setup and getting
undefined method `to_json' for {:type=>"string", :label=>"Year"}:Hash
file: data_table.rb location: display line: 231
(Mac OSX Yosemity, ruby 1.9.2 and 2.0). Any pointer?
Here is the single file:
require 'google_visualr'
require 'sinatra'
template :layout do
<<LAYOUT
<html>
<head>
<title>Sinatra Google Chart</title>
<script src='https://www.google.com/jsapi'></script>
</head>
<body>
<%= yield %>
</body>
</html>
LAYOUT
end
template :index do
<<INDEX
<center>
<p>
<div id='chart'></div>
<%= @chart.to_js("chart") %>
</p>
</center>
INDEX
end
get '/' do
data_table = GoogleVisualr::DataTable.new
# Add Column Headers
data_table.new_column('string', 'Year')
data_table.new_column('number', 'Sales')
data_table.new_column('number', 'Expenses')
# Add Rows and Values
data_table.add_rows([
['2004', 1000, 400],
['2005', 1170, 460],
['2006', 660, 1120],
['2007', 1030, 540]
])
option = { width: 400, height: 240, title: 'Company Performance' }
@chart = GoogleVisualr::Interactive::AreaChart.new(data_table, option)
erb :index
end
Oh, too stupid.
require 'JSON' was missing.
Closed.