Class: Gchart

Inherits:
Object
  • Object
show all
Defined in:
lib/gchart_mod.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#grid_lines ⇒ Object

Returns the value of attribute grid_lines.



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# File 'lib/gchart_mod.rb', line 4

def grid_lines
  @grid_lines
end

#shape_markers ⇒ Object

Returns the value of attribute shape_markers.



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# File 'lib/gchart_mod.rb', line 4

def shape_markers
  @shape_markers
end

Instance Method Details

#query_builder(options = "") ⇒ Object 



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# File 'lib/gchart_mod.rb', line 50

def query_builder(options="")
  dataset 
  query_params = instance_variables.map do |var|
    case var
    when '@data'
      set_data unless @data == []  
    # Set the graph size  
    when '@width'
      set_size unless @width.nil? || @height.nil?
    when '@type'
      set_type
    when '@title'
      set_title unless @title.nil?
    when '@legend'
      set_legend unless @legend.nil?
    when '@bg_color'
      set_colors
    when '@chart_color'
      set_colors if @bg_color.nil?
    when '@bar_colors'
      set_bar_colors
    when '@bar_width_and_spacing'
      set_bar_width_and_spacing
    when '@axis_with_labels'
      set_axis_with_labels
    when '@axis_range'
      set_axis_range if dataset
    when '@axis_labels'
      set_axis_labels
    when '@range_markers'
      set_range_markers
    when '@geographical_area'
      set_geographical_area
    when '@country_codes'
      set_country_codes
    when '@grid_lines'
      set_grid_lines
    when '@shape_markers'
      set_shape_markers
    when '@custom'
      @custom
    end
  end.compact
  
  # Use ampersand as default delimiter
  unless options == :html
    delimiter = '&'
  # Escape ampersand for html image tags
  else
    delimiter = '&'
  end
  
  jstize(@@url + query_params.join(delimiter))
end

#set_grid_lines ⇒ Object 



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# File 'lib/gchart_mod.rb', line 30

def set_grid_lines
    grid_lines_values = case @grid_lines
    when String
        @grid_lines
    when Array
        @grid_lines.join(",")
    when Hash
        x_step = @grid_lines[:x_step]
        y_step = @grid_lines[:y_step]
        line_length = @grid_lines[:line_length]
        blank_length = @grid_lines[:blank_length]
        x_offset = @grid_lines[:x_offset]
        y_offset = @grid_lines[:y_offset]
        [x_step,y_step,line_length,blank_length,x_offset,y_offset].join(",")
    else
        @grid_lines.to_s
    end
    "chg=#{grid_lines_values}"
end

#set_shape_markers ⇒ Object 



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# File 'lib/gchart_mod.rb', line 6

def set_shape_markers
    shape_markers_values = case @shape_markers
    when String
        @shape_markers
    when Array
        if @shape_markers[0].is_a?(Array)
            @shape_markers.map{|sm|sm.join(",")}.join("|")
        else
            @shape_markers.join("|")
        end
    when Hash
        marker_type = @shape_markers[:marker_type]
        color = @shape_markers[:color]
        data_set_index = @shape_markers[:data_set_index]
        data_point = @shape_markers[:data_point]
        size = @shape_markers[:size]
        priority = @shape_markers[:priority]
        [marker_type,color,data_set_index,data_point,size,priority].join(",")
    else
        @shape_makers.to_s
    end
    "chm=#{shape_markers_values}"
end