Ruby code inside script is not working

Question

my google pie chart code is

var data = google.visualization.arrayToDataTable([
          ['Task', 'Hours per Day'],
          ["Work",     50],
          ["Eat",      20],
          ["Commute",  20],
          ["Watch TV", 5],
          ["Sleep",    5]
        ]);

and my code is (<%= @datas.map { |d| [d.name, d.value] }.inspect %>) which gives the result

([["apple", "10"], ["orange", 20], ["banana", 30], ["grapes", 80], ["papaya", 44]])

when i put this result in my google pie chart code directly like this

  var data = google.visualization.arrayToDataTable([["apple", "10"], ["orange", 20], ["banana", 30], ["grapes", 80], ["papaya", 44]])

then it works perfectly. But keeping directly

var data = google.visualization.arrayToDataTable(<%= @datas.map { |d| [d.name, d.value] }.inspect %>)

does not work. What could be the reason behind this. Do ruby code have some formate to keep inside Or where i am doing wrong?

Benoît · Accepted Answer · 2012-12-05 08:54:22Z

1

What about

(<%= @datas.map { |d| [d.name, d.value] }.to_json.html_safe -%>)

edited Dec 5, 2012 at 8:54

answered Dec 5, 2012 at 8:44

Benoît

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3 Comments

regmiprem Over a year ago

I already did this but same problem. I think in this format there is mistake var data = google.visualization.arrayToDataTable(<%= @datas.map { |d| [d.name, d.value] }.inspect %>) But where i dont know and why beacause output of this code directly given works well

Benoît Over a year ago

@regmiprem I think the problem was that you got your quotes escaped, edited. By the way, don't you check the created javascript and check how it looks ?

regmiprem Over a year ago

let us continue this discussion in chat

Chris Lewis · Accepted Answer · 2012-12-05 09:33:23Z

1

Does this help:

@datas = {:apple => 10, :orange => 20, :banana => 30}
@datas.map { |name, value| [name.to_s, value] }
# => [["apple", 10], ["orange", 20], ["banana", 30]]

so just write out: <%= @datas.map { |name, value| [name.to_s, value] } %>

edited Dec 5, 2012 at 9:33

answered Dec 5, 2012 at 9:28

Chris Lewis

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Comments

vijikumar · Accepted Answer · 2012-12-05 08:52:08Z

-1

you try this .. u change your code according this

 var data = google.visualization.arrayToDataTable(<%= make_a_chart %>);

and place it somewhere in a corresponding helper:

 def make_a_chart
  result = []
  result.push make_labels, 
          make_data( 0, "zerohour" ), 
          make_data( 3, "threehours" ),
          make_data( 6, "sixhours" ),
          make_data( 9, "ninehours" ),
          make_data( 12, "twelvehours" )
          return result
          end

  def make_labels
     y = ["Time"]
     for task in Task.all do
     y.append task.name
     end
     return y
  end

 def make_data( time, completeness )
    y = Task.first.created_at + time
      for task in Task.all do
      y.append task[completeness]
   end
 return y
 end

edited Dec 5, 2012 at 8:52

answered Dec 5, 2012 at 8:34

vijikumar

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4 Comments

regmiprem Over a year ago

I have to put ruby code inside it with<%= %> otherwise how can i get value?

regmiprem Over a year ago

How can i send the value as (o, "zerohour") to (@data.name, "@data.value") I am confused

vijikumar Over a year ago

give me the contents in the @data variable

regmiprem Over a year ago

you can see the content in my question. as data.name and data.value

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