Class: Tiler::Widgets::PieChart

Inherits:
Tiler::Widget show all
Defined in:
lib/tiler/widgets/pie_chart.rb

Instance Attribute Summary

Attributes inherited from Tiler::Widget

#config, #panel

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Tiler::Widget

#data, #initialize, #label, #partial, #query_class

Constructor Details

This class inherits a constructor from Tiler::Widget

Class Method Details

.example_config ⇒ Object 



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# File 'lib/tiler/widgets/pie_chart.rb', line 86

def self.example_config
  { "group_column" => "status", "aggregation" => "count", "limit" => 6 }
end

.example_payload ⇒ Object 



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# File 'lib/tiler/widgets/pie_chart.rb', line 90

def self.example_payload
  { "status" => "ok" }
end

.example_preview ⇒ Object 



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# File 'lib/tiler/widgets/pie_chart.rb', line 94

def self.example_preview
  {
    "labels" => %w[ok warn error],
    "datasets" => [
      { "data" => [ 70, 20, 10 ],
        "backgroundColor" => [ "#3b82f6cc", "#f59e0bcc", "#ef4444cc" ],
        "borderColor" => [ "#3b82f6", "#f59e0b", "#ef4444" ],
        "borderWidth" => 2 }
    ],
    "options" => { "plugins" => { "legend" => { "position" => "right" } } }
  }
end

.supports_color_config? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tiler/widgets/pie_chart.rb', line 83

def self.supports_color_config?;   true; end

.supports_palette_config? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tiler/widgets/pie_chart.rb', line 84

def self.supports_palette_config?; true; end

Instance Method Details

#empty?(data) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tiler/widgets/pie_chart.rb', line 77

def empty?(data)
  return true if super
  data.nil? || data[:labels].blank? || data[:datasets].blank? ||
    data[:datasets].all? { |ds| Array(ds[:data]).all? { |v| v.nil? || v.zero? } }
end