Sha256: fc3aa82e2f3cc20ec0c93fed10e6141df74061b6ca7b739eaf892787b1438be0
Contents?: true
Size: 1.76 KB
Versions: 11
Compression:
Stored size: 1.76 KB
Contents
require 'query_report/chart/chart_column'
require 'query_report/chart/themes'
module QueryReport
module Chart
class ChartBase
attr_reader :title, :options, :columns, :data
def initialize(title, query, options={})
@title = title
@query = query
@options = {:width => 500, :height => 240}.merge(options)
end
def add(column_title, &block)
val = block.call(@query)
@columns ||= []
@columns << QueryReport::Chart::Column.new(column_title, val.kind_of?(String) ? :string : :number)
@data ||= []
@data << val
end
def prepare_visualr(type)
@data_table = GoogleVisualr::DataTable.new
##### Adding column header #####
@data_table.new_column('string', '') if type == :column
@columns.each do |col|
@data_table.new_column(col.type.to_s, col.title)
end
##### Adding column header #####
##### Adding value #####
chart_row_data = type == :column ? [''] + @data : @data
@data_table.add_row(chart_row_data)
##### Adding value #####
options = {:title => title, backgroundColor: 'transparent'}.merge(@options)
chart_type = "#{type}_chart".classify
chart_type = "GoogleVisualr::Interactive::#{chart_type}".constantize
chart_type.new(@data_table, options)
end
def to_blob(type)
chart_type = type.to_s.classify
chart_type = "Gruff::#{chart_type}".constantize
@gruff = chart_type.new(@options[:width])
@gruff.title = title
@gruff.theme = QueryReport::Chart::Themes::GOOGLE_CHART
@data.each_with_index do |value, i|
@gruff.data(@columns[i].title, value)
end
@gruff.to_blob
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems