Ruby on Rails
Ruby on Rails

Change ChartKick Graph Design



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Chartkick is an easy to use graphing gem that can include Highcharts or Google Charts. In this post, you’ll see how to change the graph design for Chartkick using Highcharts.

The 3rd paramater should be the library design.

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<%= area_chart User.group_by_day.count, library: { } %>

Inside of Library, you can insert a JSON array with the configs from HighCharts API.

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 <div>
    <%= area_chart User.count, library: {
        colors: ["rgb(67, 131, 187)", "#90ee7e"], chart: {
          backgroundColor: 'rgba(255, 255, 255, 0.0)',
          height: '370',
          style: {
             fontFamily: "'Unica One', sans-serif"
          },
          plotBorderColor: '#606063'
           },
           title: {
               text: 'Month Impressions',
              style: {
                 color: 'rgba(255, 255, 255, 0.8)',
                 fontSize: '22px'
              }
           },
           subtitle: {
                text: 'Total Impressions in the last 30 days',
              style: {
                 color: 'rgba(255, 255, 255, 0.3)',
                 textTransform: 'uppercase'
              }
           },
           xAxis: {
              gridLineColor: 'rgba(255, 255, 255, 0.05)',
              labels: {
                 style: {
                    color: '#E0E0E3'
                 }
              },
              lineColor: 'rgba(255, 255, 255, 0.05)',
              minorGridLineColor: '#505053',
              tickColor: '#707073',
              title: {
                 style: {
                    color: '#A0A0A3'
                 }
              }
           },
           yAxis: {
              gridLineColor: 'rgba(255, 255, 255, 0.05)',
              labels: {
                 style: {
                    color: '#E0E0E3'
                 }
              },
              lineColor: 'rgba(255, 255, 255, 0.05)',
              minorGridLineColor: 'rgba(255, 255, 255, 0.05)',
              tickColor: '#707073',
              tickWidth: 1,
              title: {
                 style: {
                    color: '#A0A0A3'
                 }
              }
           },
           tooltip: {
              backgroundColor: 'rgba(0, 0, 0, 0.85)',
              style: {
                 color: '#F0F0F0'
              }
           },
           plotOptions: {
              series: {
                 dataLabels: {
                    color: '#B0B0B3'
                 },
                 marker: {
                    lineColor: '#333'
                 }
              },
              boxplot: {
                 fillColor: '#505053'
              },
              candlestick: {
                 lineColor: 'white'
              },
              errorbar: {
                 color: 'white'
              }
           },
           legend: {
              itemStyle: {
                 color: '#E0E0E3'
              },
              itemHoverStyle: {
                 color: '#FFF'
              },
              itemHiddenStyle: {
                 color: '#606063'
              }
           },
           credits: {
              style: {
                 color: '#666'
              }
           },
           labels: {
              style: {
                 color: '#707073'
              }
           },
           drilldown: {
              activeAxisLabelStyle: {
                 color: '#F0F0F3'
              },
              activeDataLabelStyle: {
                 color: '#F0F0F3'
              }
           },
           navigation: {
              buttonOptions: {
                 symbolStroke: '#DDDDDD',
                 theme: {
                    fill: '#505053'
                 }
              }
           },
           rangeSelector: {
              buttonTheme: {
                 fill: '#505053',
                 stroke: '#000000',
                 style: {
                    color: '#CCC'
                 },
                 states: {
                    hover: {
                       fill: '#707073',
                       stroke: '#000000',
                       style: {
                          color: 'white'
                       }
                    },
                    select: {
                       fill: '#000003',
                       stroke: '#000000',
                       style: {
                          color: 'white'
                       }
                    }
                 }
              },
              inputBoxBorderColor: '#505053',
              inputStyle: {
                 backgroundColor: '#333',
                 color: 'silver'
              },
              labelStyle: {
                 color: 'silver'
              }
           },
           navigator: {
              handles: {
                 backgroundColor: '#666',
                 borderColor: '#AAA'
              },
              outlineColor: '#CCC',
              maskFill: 'rgba(255,255,255,0.1)',
              series: {
                 color: '#7798BF',
                 lineColor: '#A6C7ED'
              },
              xAxis: {
                 gridLineColor: '#505053'
              }
           },
           scrollbar: {
              barBackgroundColor: '#808083',
              barBorderColor: '#808083',
              buttonArrowColor: '#CCC',
              buttonBackgroundColor: '#606063',
              buttonBorderColor: '#606063',
              rifleColor: '#FFF',
              trackBackgroundColor: '#404043',
              trackBorderColor: '#404043'
           },
           legendBackgroundColor: 'rgba(0, 0, 0, 0.5)',
           background2: '#505053',
           dataLabelsColor: '#B0B0B3',
           textColor: '#C0C0C0',
           contrastTextColor: '#F0F0F3',
           maskColor: 'rgba(255,255,255,0.3)' }  %>
</div>

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