Module: GoogleHelper

Defined in:
app/helpers/google_helper.rb

Instance Method Summary collapse

Instance Method Details

#google_area(id = nil, size = nil) ⇒ Object 



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# File 'app/helpers/google_helper.rb', line 38

def google_area id=nil, size=nil
  html = "<div id=\"chart_div\" style=\"width: 900px; height: 500px;\"></div>".html_safe
  script = javascript_tag do
    <<-END.html_safe
      google.charts.load('current', {'packages':['corechart']});
      google.charts.setOnLoadCallback(drawChart);
      function drawChart() {
      var data = google.visualization.arrayToDataTable([
        ['Year', 'Sales', 'Expenses'],
        ['2013',  1000,      400],
        ['2014',  1170,      460],
        ['2015',  660,       1120],
        ['2016',  1030,      540]
      ]);

      var options = {
        title: 'Company Performance',
        hAxis: {title: 'Year',  titleTextStyle: {color: '#333'}},
        vAxis: {minValue: 0}
      };

      var chart = new google.visualization.AreaChart(document.getElementById('chart_div'));
      chart.draw(data, options);
      }
    END
  end
  return html + script
end

#google_bar(id = nil, size = nil) ⇒ Object 



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# File 'app/helpers/google_helper.rb', line 142

def google_bar id=nil, size=nil
  html = "<div id=\"barchart_values\" style=\"width: 900px; height: 300px;\"></div>".html_safe
  script = javascript_tag do
    <<-END.html_safe
    google.charts.load("current", {packages:["corechart"]});
    google.charts.setOnLoadCallback(drawChart);
    function drawChart() {
    var data = google.visualization.arrayToDataTable([
      ["Element", "Density", { role: "style" } ],
      ["Copper", 8.94, "#b87333"],
      ["Silver", 10.49, "silver"],
      ["Gold", 19.30, "gold"],
      ["Platinum", 21.45, "color: #e5e4e2"]
    ]);

    var view = new google.visualization.DataView(data);
    view.setColumns([0, 1,
                     { calc: "stringify",
                       sourceColumn: 1,
                       type: "string",
                       role: "annotation" },
                     2]);

    var options = {
      title: "Density of Precious Metals, in g/cm^3",
      width: 600,
      height: 400,
      bar: {groupWidth: "95%"},
      legend: { position: "none" },
    };
    var chart = new google.visualization.BarChart(document.getElementById("barchart_values"));
    chart.draw(view, options);
    }

    END
  end
  return html + script
end

#google_bubble(id = nil, size = nil) ⇒ Object 



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# File 'app/helpers/google_helper.rb', line 181

def google_bubble id=nil, size=nil
  html = "<div id=\"series_chart_div\" style=\"width: 900px; height: 500px;\"></div>".html_safe
  script = javascript_tag do
    <<-END.html_safe
      google.charts.load('current', {'packages':['corechart']});
      google.charts.setOnLoadCallback(drawSeriesChart);

      function drawSeriesChart() {

      var data = google.visualization.arrayToDataTable([
      ['ID', 'Life Expectancy', 'Fertility Rate', 'Region',     'Population'],
      ['CAN',    80.66,              1.67,      'North America',  33739900],
      ['DEU',    79.84,              1.36,      'Europe',         81902307],
      ['DNK',    78.6,               1.84,      'Europe',         5523095],
      ['EGY',    72.73,              2.78,      'Middle East',    79716203],
      ['GBR',    80.05,              2,         'Europe',         61801570],
      ['IRN',    72.49,              1.7,       'Middle East',    73137148],
      ['IRQ',    68.09,              4.77,      'Middle East',    31090763],
      ['ISR',    81.55,              2.96,      'Middle East',    7485600],
      ['RUS',    68.6,               1.54,      'Europe',         141850000],
      ['USA',    78.09,              2.05,      'North America',  307007000]
      ]);

      var options = {
      title: 'Correlation between life expectancy, fertility rate ' +
             'and population of some world countries (2010)',
      hAxis: {title: 'Life Expectancy'},
      vAxis: {title: 'Fertility Rate'},
      bubble: {textStyle: {fontSize: 11}}
      };

      var chart = new google.visualization.BubbleChart(document.getElementById('series_chart_div'));
      chart.draw(data, options);
      }

    END
  end
  return html + script
end

#google_calendar(id = nil, size = nil) ⇒ Object 



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# File 'app/helpers/google_helper.rb', line 221

def google_calendar id=nil, size=nil
  html = "<div id=\"calendar_basic\" style=\"width: 1000px; height: 350px;\"></div>".html_safe
  script = javascript_tag do
    <<-END.html_safe
      google.charts.load("current", {packages:["calendar"]});
      google.charts.setOnLoadCallback(drawChart);

      function drawChart() {
      var dataTable = new google.visualization.DataTable();
      dataTable.addColumn({ type: 'date', id: 'Date' });
      dataTable.addColumn({ type: 'number', id: 'Won/Loss' });
      dataTable.addRows([
        [ new Date(2015, 3, 13), 37032 ],
        [ new Date(2015, 3, 14), 38024 ],
        [ new Date(2015, 3, 15), 38024 ],
        [ new Date(2015, 3, 16), 38108 ],
        [ new Date(2015, 3, 17), 38229 ],
        // Many rows omitted for brevity.
        [ new Date(2016, 9, 4), 38177 ],
        [ new Date(2016, 9, 5), 38705 ],
        [ new Date(2016, 9, 12), 38210 ],
        [ new Date(2016, 9, 13), 38029 ],
        [ new Date(2016, 9, 19), 38823 ],
        [ new Date(2016, 9, 23), 38345 ],
        [ new Date(2016, 9, 24), 38436 ],
        [ new Date(2016, 9, 30), 38447 ]
      ]);

      var chart = new google.visualization.Calendar(document.getElementById('calendar_basic'));

      var options = {
       title: "Red Sox Attendance",
       height: 350,
      };

      chart.draw(dataTable, options);
      }

    END
  end
  return html + script
end

#google_gauge_charts(id = nil, size = nil) ⇒ Object 



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# File 'app/helpers/google_helper.rb', line 97

def google_gauge_charts id=nil, size=nil
  html = "<div id=\"chart_div\" style=\"width: 400px; height: 120px;\"></div>".html_safe
  script = javascript_tag do
    <<-END.html_safe
      google.charts.load('current', {'packages':['gauge']});
      google.charts.setOnLoadCallback(drawChart);
      function drawChart() {

      var data = google.visualization.arrayToDataTable([
        ['Label', 'Value'],
        ['Memory', 80],
        ['CPU', 55],
        ['Network', 68]
      ]);

      var options = {
        width: 400, height: 120,
        redFrom: 90, redTo: 100,
        yellowFrom:75, yellowTo: 90,
        minorTicks: 5
      };

      var chart = new google.visualization.Gauge(document.getElementById('chart_div'));

      chart.draw(data, options);

      setInterval(function() {
        data.setValue(0, 1, 40 + Math.round(60 * Math.random()));
        chart.draw(data, options);
      }, 13000);
      setInterval(function() {
        data.setValue(1, 1, 40 + Math.round(60 * Math.random()));
        chart.draw(data, options);
      }, 5000);
      setInterval(function() {
        data.setValue(2, 1, 60 + Math.round(20 * Math.random()));
        chart.draw(data, options);
      }, 26000);
      }

    END
  end
  return html + script
end

#google_geochart(id = nil, size = nil) ⇒ Object 



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# File 'app/helpers/google_helper.rb', line 67

def google_geochart id=nil, size=nil
  html = "<div id=\"regions_div\" style=\"width: 900px; height: 500px;\"></div>".html_safe
  script = javascript_tag do
    <<-END.html_safe
        google.charts.load('current', {'packages':['geochart']});
      google.charts.setOnLoadCallback(drawRegionsMap);

      function drawRegionsMap() {

        var data = google.visualization.arrayToDataTable([
          ['Country', 'Popularity'],
          ['Germany', 200],
          ['United States', 300],
          ['Brazil', 400],
          ['Canada', 500],
          ['France', 600],
          ['RU', 700]
        ]);

        var options = {};

        var chart = new google.visualization.GeoChart(document.getElementById('regions_div'));

        chart.draw(data, options);
      }
    END
  end
  return html + script
end

#google_pie(id = nil, size = nil) ⇒ Object

Google Chart



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# File 'app/helpers/google_helper.rb', line 6

def google_pie id=nil, size=nil
  html = "<div id=\"piechart\" style=\"width: 900px; height: 500px;\"></div>".html_safe
  script = javascript_tag do
    <<-END.html_safe
    google.charts.load('current', {'packages':['corechart']});
  google.charts.setOnLoadCallback(drawChart);
  function drawChart() {

    var data = google.visualization.arrayToDataTable([
      ['Task', 'Hours per Day'],
      ['Work',     11],
      ['Eat',      2],
      ['Commute',  2],
      ['Watch TV', 2],
      ['Sleep',    7]
    ]);

    var options = {
      title: 'My Daily Activities'
    };

    var chart = new google.visualization.PieChart(document.getElementById('piechart'));

    chart.draw(data, options);
  }


    END
  end
  return html + script
end

#google_scatterchart(id = nil, size = nil) ⇒ Object 



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# File 'app/helpers/google_helper.rb', line 264

def google_scatterchart id=nil, size=nil
  html = "<div id=\"chart_div\" style=\"width: 900px; height: 500px;\"></div>".html_safe
  script = javascript_tag do
    <<-END.html_safe
      google.charts.load('current', {'packages':['corechart']});
      google.charts.setOnLoadCallback(drawChart);
      function drawChart() {
        var data = google.visualization.arrayToDataTable([
          ['Age', 'Weight'],
          [ 8,      12],
          [ 4,      5.5],
          [ 11,     14],
          [ 4,      5],
          [ 3,      3.5],
          [ 6.5,    7]
        ]);
        var options = {
          title: 'Age vs. Weight comparison',
          hAxis: {title: 'Age', minValue: 0, maxValue: 15},
          vAxis: {title: 'Weight', minValue: 0, maxValue: 15},
          legend: 'none'
        };
        var chart = new google.visualization.ScatterChart(document.getElementById('chart_div'));
        chart.draw(data, options);
      }

    END
  end
  return html + script
end