Class: ActiveSet::Filtering::Operation

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

Instance Method Summary collapse

Constructor Details

#initialize(set, instructions_hash) ⇒ Operation

Returns a new instance of Operation.



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# File 'lib/active_set/filtering/operation.rb', line 10

def initialize(set, instructions_hash)
  @set = set
  @instructions_hash = instructions_hash
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/active_set/filtering/operation.rb', line 15

def execute
  attribute_instructions = flatten_keys_of(@instructions_hash)
                           .map { |k, v| AttributeInstruction.new(k, v) }

  activerecord_filtered_set = attribute_instructions.reduce(@set) do |set, attribute_instruction|
    maybe_set_or_false = ActiveRecord::Strategy.new(set, attribute_instruction).execute
    next set unless maybe_set_or_false

    attribute_instruction.processed = true
    maybe_set_or_false
  end

  return activerecord_filtered_set if attribute_instructions.all?(&:processed?)

  attribute_instructions.reject(&:processed?).reduce(activerecord_filtered_set) do |set, attribute_instruction|
    maybe_set_or_false = Enumerable::Strategy.new(set, attribute_instruction).execute
    next set unless maybe_set_or_false

    attribute_instruction.processed = true
    maybe_set_or_false
  end
end

#operation_instructions ⇒ Object 



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# File 'lib/active_set/filtering/operation.rb', line 38

def operation_instructions
  @instructions_hash.symbolize_keys
end