Module: ALaChart::HelperMethods

Included in:
InstanceMethods
Defined in:
lib/a_la_chart/a_la_chart.rb

Instance Method Summary collapse

Instance Method Details

#data(the_case = nil) ⇒ Object 



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# File 'lib/a_la_chart/a_la_chart.rb', line 14

def data(the_case=nil)
  if the_case.blank?
    (@data ||= {})['_'] ||= defined?(get_data) ? get_data : []
  else
    (@data ||= {})[the_case] ||= respond_to?("get_data_#{the_case.to_s}") ? send("get_data_#{the_case.to_s}") : []
  end
end

#meta(the_case = nil) ⇒ Object 



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

def meta(the_case=nil)
  if the_case.blank?
    (@metadata ||= {})['_'] ||= defined?(get_meta) ? get_meta : {}
    # @metadata ||= defined?(get_meta) ? get_meta : {}
  else
    (@metadata ||= {})[the_case] ||= respond_to?("get_meta_#{the_case.to_s}") ? send("get_meta_#{the_case.to_s}") : []
    # @metadata ||= respond_to?("get_meta_#{the_case.to_s}") ? send("get_meta_#{the_case.to_s}") : []
  end
end

#set_chart(chart_type) ⇒ Object 



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# File 'lib/a_la_chart/a_la_chart.rb', line 42

def set_chart(chart_type)
  send "set_chart_#{chart_type}"
end

#value(object, key, the_case = nil) ⇒ Object 



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# File 'lib/a_la_chart/a_la_chart.rb', line 22

def value(object, key, the_case=nil)
  return '' if object.blank? || key.blank?
  
  # if there is a meta map, use it. else try the key itself
  key_field = meta(the_case)[key] || key
  
  return '' if key_field.blank?
  
  if key_field.class == Proc
    # TODO: How to do this in the context of the controller?
    val = key_field.call(object)
  elsif key_field.class == Fixnum
    val = object[key_field] if object.respond_to?('[]')
  elsif object.class != Array
    val = object[key_field] if object.respond_to?('[]')
    val = (object.respond_to?(key_field) ? object.send(key_field) : nil) if val.nil?
    val
  end
end