class Babik::QuerySet::SetOperation
Each one of the set operations that can be executed in SQL
Attributes
left_operand[R]
right_operand[R]
Public Class Methods
new(model, left_operand, right_operand)
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Calls superclass method
Babik::QuerySet::AbstractBase::new
# File lib/babik/queryset.rb, line 130 def initialize(model, left_operand, right_operand) @left_operand = left_operand @right_operand = right_operand super(model) end
Public Instance Methods
operation()
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# File lib/babik/queryset.rb, line 136 def operation db_adapter = Babik::Database.config[:adapter] operation_name = self.class.to_s.split('::').last.upcase if %w[postgresql sqlite3].include?(db_adapter) || (%w[mysql2].include?(db_adapter) && operation_name == 'UNION') return operation_name end raise "#{db_adapter} does not support operation #{operation_name}" end