Module: CalculableAttrs::ActiveRecord::Relation

Defined in:
lib/calculable_attrs/active_record/relation.rb

Constant Summary collapse

JOINED_RELATION_NAME = 
'calculated_attrs'

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/calculable_attrs/active_record/relation.rb', line 25

def self.included(base)
  base.class_eval do
    alias_method :calculable_orig_exec_queries, :exec_queries
    alias_method :calculable_orig_calculate, :calculate
    def exec_queries
      if calculable_attrs_joined.empty?
        calculable_orig_exec_queries
      else
        wrap_with_left_joins_and_exec_queries
      end
      apped_calculable_attrs
      @records
    end

    def calculate(operation, column_name, options = {})
      if calculable_attrs_joined.empty?
        calculable_orig_calculate(operation,column_name,options)
      else
        relation = wrap_with_calculable_joins(spawn)
        relation.calculable_orig_calculate(operation,column_name,options)
      end
    end
  end
end

Instance Method Details

#includes_calculable_attrs(*attrs) ⇒ Object Also known as: calculate_attrs 



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# File 'lib/calculable_attrs/active_record/relation.rb', line 4

def includes_calculable_attrs(*attrs)
  spawn.includes_calculable_attrs!(*attrs)
end

#includes_calculable_attrs!(*attrs) ⇒ Object Also known as: calculate_attrs! 



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# File 'lib/calculable_attrs/active_record/relation.rb', line 9

def includes_calculable_attrs!(*attrs)
  set_calculable_attrs_included(refine_calculable_attrs(attrs))
  self
end

#joins_calculable_attrs(*attrs) ⇒ Object 



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# File 'lib/calculable_attrs/active_record/relation.rb', line 15

def joins_calculable_attrs(*attrs)
  spawn.joins_calculable_attrs!(*attrs)
end

#joins_calculable_attrs!(*attrs) ⇒ Object 



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# File 'lib/calculable_attrs/active_record/relation.rb', line 19

def joins_calculable_attrs!(*attrs)
  set_calculable_attrs_joined(refine_calculable_attrs(attrs))
  self
end