Class: Rasti::DB::ComputedAttribute

Inherits:
Object
  • Object
show all
Defined in:
lib/rasti/db/computed_attribute.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(identifier, &join) ⇒ ComputedAttribute

Returns a new instance of ComputedAttribute.



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# File 'lib/rasti/db/computed_attribute.rb', line 7

def initialize(identifier, &join)
  @identifier = identifier
  @join = join
end

Instance Attribute Details

#identifier ⇒ Object (readonly)

Returns the value of attribute identifier.



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# File 'lib/rasti/db/computed_attribute.rb', line 5

def identifier
  @identifier
end

Instance Method Details

#apply_join(dataset, environment) ⇒ Object 



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# File 'lib/rasti/db/computed_attribute.rb', line 12

def apply_join(dataset, environment)
  join ? join.call(dataset, environment) : dataset
end