Class: ActiveSet::Filtering::ActiveRecordStrategy

Inherits:
Object
  • Object
show all
Defined in:
lib/active_set/filtering/active_record_strategy.rb

Instance Method Summary collapse

Constructor Details

#initialize(set, attribute_instruction) ⇒ ActiveRecordStrategy

Returns a new instance of ActiveRecordStrategy.



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# File 'lib/active_set/filtering/active_record_strategy.rb', line 18

def initialize(set, attribute_instruction)
  @set = set
  @attribute_instruction = attribute_instruction
  @set_instruction = ActiveRecordSetInstruction.new(attribute_instruction, set)
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/active_set/filtering/active_record_strategy.rb', line 24

def execute
  return false unless @set.respond_to? :to_sql

  if execute_filter_operation?
    statement = filter_operation
  elsif execute_intersect_operation?
    begin
      statement = intersect_operation
    rescue ArgumentError # thrown if merging a non-ActiveRecord::Relation
      return false
    end
  else
    return false
  end

  statement
end