Class: MDQuery::DSL::DatasetDSL

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

Overview

DSL for defining a Dataset with a number of Measures over a number of Dimensions where each Dimension consists of a number of Segments

Instance Method Summary collapse

Instance Method Details

#dimension(key, &proc) ⇒ Object

define a Dimension

  • key the key identifying the Dimension in the Dataset

  • proc a DimensionDSL Proc



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# File 'lib/mdquery/dsl.rb', line 145

def dimension(key, &proc)
  @dimensions << DimensionDSL.new(key, &proc)
end

#measure(key, definition, cast = nil) ⇒ Object

define a Measure

  • key the key identifying the Measure in the Dataset

  • definition the SQL fragment defining the measure

  • cast a symbol identifying a case from MDQuery::Model::CASTS. Optional



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# File 'lib/mdquery/dsl.rb', line 153

def measure(key, definition, cast=nil)
  @measures << MeasureDSL.new(key, definition, cast)
end

#source(scope) ⇒ Object

define the datasource for the Dataset

  • scope an ActiveRecord scope, used as the basis for all region queries



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# File 'lib/mdquery/dsl.rb', line 137

def source(scope)
  raise "source already set" if @source
  @source = scope
end