Class: ActiveRecord::Refinements::WhereBlockEvaluator

Inherits:
Object
  • Object
show all
Defined in:
lib/activerecord-refinements.rb

Instance Method Summary collapse

Constructor Details

#initialize(table) ⇒ WhereBlockEvaluator

Returns a new instance of WhereBlockEvaluator.



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# File 'lib/activerecord-refinements.rb', line 17

def initialize(table)
  @table = table
end

Instance Method Details

#evaluate(&block) ⇒ Object 



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# File 'lib/activerecord-refinements.rb', line 21

def evaluate(&block)
  col, op, val = instance_eval &block
  case op
  when :==
    @table[col].eq val
  when :!=
    @table[col].not_eq val
  when :=~
    @table[col].matches val
  when :>
    @table[col].gt val
  when :>=
    @table[col].gteq val
  when :<
    @table[col].lt val
  when :<=
    @table[col].lteq val
  else
    raise "unexpected op: #{op}"
  end
end